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-rw-r--r--src/grt/Makefile.inc13
-rw-r--r--src/grt/fst/block_format.txt130
-rw-r--r--src/grt/fst/config.h2
-rw-r--r--src/grt/fst/fastlz.c547
-rw-r--r--src/grt/fst/fastlz.h107
-rw-r--r--src/grt/fst/fstapi.c6531
-rw-r--r--src/grt/fst/fstapi.h426
-rw-r--r--src/grt/fst/lz4.c1267
-rw-r--r--src/grt/fst/lz4.h323
-rw-r--r--src/grt/grt-fst.adb474
-rw-r--r--src/grt/grt-fst.ads28
-rw-r--r--src/grt/grt-fst_api.ads353
-rw-r--r--src/grt/grt-modules.adb2
-rw-r--r--src/grt/grt-vcd.adb3
-rw-r--r--src/grt/grt-vcd.ads2
15 files changed, 10205 insertions, 3 deletions
diff --git a/src/grt/Makefile.inc b/src/grt/Makefile.inc
index bc59bb555..3bd6ac2cb 100644
--- a/src/grt/Makefile.inc
+++ b/src/grt/Makefile.inc
@@ -96,8 +96,10 @@ ifndef GRT_TARGET_OBJS
GRT_EXTRA_LIB=-lpthread -ldl -lm
endif
+GRT_FST_OBJS := fstapi.o lz4.o fastlz.o
+
# Additionnal object files (C or asm files).
-GRT_ADD_OBJS:=$(GRT_TARGET_OBJS) grt-cbinding.o grt-cvpi.o
+GRT_ADD_OBJS:=$(GRT_TARGET_OBJS) grt-cbinding.o grt-cvpi.o $(GRT_FST_OBJS)
#GRT_USE_PTHREADS=y
ifeq ($(GRT_USE_PTHREADS),y)
@@ -183,6 +185,15 @@ grt-cvpi.o: $(GRTSRCDIR)/grt-cvpi.c
grt-cthreads.o: $(GRTSRCDIR)/grt-cthreads.c
$(CC) -c $(GRT_FLAGS) -o $@ $<
+fstapi.o: $(GRTSRCDIR)/fst/fstapi.c
+ $(CC) -c $(GRT_FLAGS) -o $@ -I$(GRTSRCDIR)/fst $<
+
+lz4.o: $(GRTSRCDIR)/fst/lz4.c
+ $(CC) -c $(GRT_FLAGS) -o $@ $<
+
+fastlz.o: $(GRTSRCDIR)/fst/fastlz.c
+ $(CC) -c $(GRT_FLAGS) -o $@ $<
+
grt-disp-config:
@echo "target: $(target)"
@echo "targ: $(targ)"
diff --git a/src/grt/fst/block_format.txt b/src/grt/fst/block_format.txt
new file mode 100644
index 000000000..0cab3a443
--- /dev/null
+++ b/src/grt/fst/block_format.txt
@@ -0,0 +1,130 @@
+See fstapi.h for the values for the FST_BL_XXX enums.
+
+===========================================================================
+
+compressed wrapper (typically over whole file)
+
+uint8_t FST_BL_ZWRAPPER
+uint64_t section length
+uint64_t length of uncompressed data
+[zlib compressed data]
+
+===========================================================================
+
+header block
+
+uint8_t FST_BL_HDR
+uint64_t section length
+uint64_t start time
+uint64_t end time
+double endian test for "e"
+uint64_t memory used by writer
+uint64_t scope creation count
+uint64_t var creation count
+uint64_t max var idcode
+uint64_t vc section count
+int8_t timescale exponent
+[128 bytes] version
+[128 bytes] date
+
+===========================================================================
+
+geometry block
+
+uint8_t FST_BL_GEOM
+uint64_t section length
+uint64_t length of uncompressed geometry data
+uint64_t maxhandle
+[compressed data]
+
+(length of compressed data is section length - 24)
+
+===========================================================================
+
+hierarchy block
+
+uint8_t FST_BL_HIER
+uint64_t section length
+uint64_t length of uncompressed hier data
+[zlib compressed data]
+
+or
+
+uint8_t FST_BL_HIER_LZ4
+uint64_t section length
+uint64_t length of uncompressed hier data
+[lz4 compressed data]
+
+uint8_t FST_BL_HIER_LZ4DUO
+uint64_t section length
+uint64_t length of uncompressed hier data
+varint length of hier data compressed once with lz4
+[lz4 double compressed data]
+
+
+===========================================================================
+
+dumpon/off block
+
+uint8_t FST_BL_BLACKOUT
+uint64_t section length
+varint num blackouts (section below is repeated this # times)
+[
+uint8_t on/off (nonzero = on)
+varint delta time
+]
+
+===========================================================================
+
+1..n value change blocks:
+
+// header
+
+uint8_t FST_BL_VCDATA (or FST_BL_VCDATA_DYN_ALIAS)
+uint64_t section length
+uint64_t begin time of section
+uint64_t end time of section
+uint64_t amount of buffer memory required in reader for full vc traversal
+varint maxvalpos (length of uncompressed data)
+varint length of compressed data
+varint maxhandle associated with this checkpoint data
+[compressed data]
+
+---
+
+// value changes
+
+varint maxhandle associated with the value change data
+uint8_t pack type ('F' is fastlz, '4' is lz4,
+ others ['Z'/'!'] are zlib)
+
+varint chain 0 compressed data length (0 = uncompressed)
+[compressed data]
+...
+varint chain n compressed data length (0 = uncompressed)
+[compressed data]
+
+---
+
+// index: chain pointer table (from 0..maxhandle-1)
+
+varint if &1 == 1, this is <<1 literal delta
+ if &1 == 0, this is <<1 RLE count of zeros
+ if == 0, next varint is handle of prev chain to use,
+ bit only if FST_BL_VCDATA_DYN_ALIAS or
+ later VCDATA format
+
+---
+
+uint64_t index length (subtract from here to get index position)
+
+---
+
+[compressed data for time section]
+uint64_t uncompressed data length in bytes
+uint64_t compressed data length in bytes
+uint64_t number of time items
+
+// end of section
+
+===========================================================================
diff --git a/src/grt/fst/config.h b/src/grt/fst/config.h
new file mode 100644
index 000000000..71c5a2d31
--- /dev/null
+++ b/src/grt/fst/config.h
@@ -0,0 +1,2 @@
+/* config.h for fst. */
+#define HAVE_FSEEKO 1
diff --git a/src/grt/fst/fastlz.c b/src/grt/fst/fastlz.c
new file mode 100644
index 000000000..50bf56a46
--- /dev/null
+++ b/src/grt/fst/fastlz.c
@@ -0,0 +1,547 @@
+/*
+ FastLZ - lightning-fast lossless compression library
+
+ Copyright (C) 2007 Ariya Hidayat (ariya@kde.org)
+ Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)
+ Copyright (C) 2005 Ariya Hidayat (ariya@kde.org)
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+*/
+
+#include "fastlz.h"
+
+#if !defined(FASTLZ__COMPRESSOR) && !defined(FASTLZ_DECOMPRESSOR)
+
+/*
+ * Always check for bound when decompressing.
+ * Generally it is best to leave it defined.
+ */
+#define FASTLZ_SAFE
+
+
+/*
+ * Give hints to the compiler for branch prediction optimization.
+ */
+#if defined(__GNUC__) && (__GNUC__ > 2)
+#define FASTLZ_EXPECT_CONDITIONAL(c) (__builtin_expect((c), 1))
+#define FASTLZ_UNEXPECT_CONDITIONAL(c) (__builtin_expect((c), 0))
+#else
+#define FASTLZ_EXPECT_CONDITIONAL(c) (c)
+#define FASTLZ_UNEXPECT_CONDITIONAL(c) (c)
+#endif
+
+/*
+ * Use inlined functions for supported systems.
+ */
+#if defined(__GNUC__) || defined(__DMC__) || defined(__POCC__) || defined(__WATCOMC__) || defined(__SUNPRO_C)
+#define FASTLZ_INLINE inline
+#elif defined(__BORLANDC__) || defined(_MSC_VER) || defined(__LCC__)
+#define FASTLZ_INLINE __inline
+#else
+#define FASTLZ_INLINE
+#endif
+
+/*
+ * Prevent accessing more than 8-bit at once, except on x86 architectures.
+ */
+#if !defined(FASTLZ_STRICT_ALIGN)
+#define FASTLZ_STRICT_ALIGN
+#if defined(__i386__) || defined(__386) /* GNU C, Sun Studio */
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(__i486__) || defined(__i586__) || defined(__i686__) || defined(__amd64) /* GNU C */
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(_M_IX86) /* Intel, MSVC */
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(__386)
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(_X86_) /* MinGW */
+#undef FASTLZ_STRICT_ALIGN
+#elif defined(__I86__) /* Digital Mars */
+#undef FASTLZ_STRICT_ALIGN
+#endif
+#endif
+
+/* prototypes */
+int fastlz_compress(const void* input, int length, void* output);
+int fastlz_compress_level(int level, const void* input, int length, void* output);
+int fastlz_decompress(const void* input, int length, void* output, int maxout);
+
+#define MAX_COPY 32
+#define MAX_LEN 264 /* 256 + 8 */
+#define MAX_DISTANCE 8192
+
+#if !defined(FASTLZ_STRICT_ALIGN)
+#define FASTLZ_READU16(p) *((const flzuint16*)(p))
+#else
+#define FASTLZ_READU16(p) ((p)[0] | (p)[1]<<8)
+#endif
+
+#define HASH_LOG 13
+#define HASH_SIZE (1<< HASH_LOG)
+#define HASH_MASK (HASH_SIZE-1)
+#define HASH_FUNCTION(v,p) { v = FASTLZ_READU16(p); v ^= FASTLZ_READU16(p+1)^(v>>(16-HASH_LOG));v &= HASH_MASK; }
+
+#undef FASTLZ_LEVEL
+#define FASTLZ_LEVEL 1
+
+#undef FASTLZ_COMPRESSOR
+#undef FASTLZ_DECOMPRESSOR
+#define FASTLZ_COMPRESSOR fastlz1_compress
+#define FASTLZ_DECOMPRESSOR fastlz1_decompress
+static FASTLZ_INLINE int FASTLZ_COMPRESSOR(const void* input, int length, void* output);
+static FASTLZ_INLINE int FASTLZ_DECOMPRESSOR(const void* input, int length, void* output, int maxout);
+#include "fastlz.c"
+
+#undef FASTLZ_LEVEL
+#define FASTLZ_LEVEL 2
+
+#undef MAX_DISTANCE
+#define MAX_DISTANCE 8191
+#define MAX_FARDISTANCE (65535+MAX_DISTANCE-1)
+
+#undef FASTLZ_COMPRESSOR
+#undef FASTLZ_DECOMPRESSOR
+#define FASTLZ_COMPRESSOR fastlz2_compress
+#define FASTLZ_DECOMPRESSOR fastlz2_decompress
+static FASTLZ_INLINE int FASTLZ_COMPRESSOR(const void* input, int length, void* output);
+static FASTLZ_INLINE int FASTLZ_DECOMPRESSOR(const void* input, int length, void* output, int maxout);
+#include "fastlz.c"
+
+int fastlz_compress(const void* input, int length, void* output)
+{
+ /* for short block, choose fastlz1 */
+ if(length < 65536)
+ return fastlz1_compress(input, length, output);
+
+ /* else... */
+ return fastlz2_compress(input, length, output);
+}
+
+int fastlz_decompress(const void* input, int length, void* output, int maxout)
+{
+ /* magic identifier for compression level */
+ int level = ((*(const flzuint8*)input) >> 5) + 1;
+
+ if(level == 1)
+ return fastlz1_decompress(input, length, output, maxout);
+ if(level == 2)
+ return fastlz2_decompress(input, length, output, maxout);
+
+ /* unknown level, trigger error */
+ return 0;
+}
+
+int fastlz_compress_level(int level, const void* input, int length, void* output)
+{
+ if(level == 1)
+ return fastlz1_compress(input, length, output);
+ if(level == 2)
+ return fastlz2_compress(input, length, output);
+
+ return 0;
+}
+
+#else /* !defined(FASTLZ_COMPRESSOR) && !defined(FASTLZ_DECOMPRESSOR) */
+
+static FASTLZ_INLINE int FASTLZ_COMPRESSOR(const void* input, int length, void* output)
+{
+ const flzuint8* ip = (const flzuint8*) input;
+ const flzuint8* ip_bound = ip + length - 2;
+ const flzuint8* ip_limit = ip + length - 12;
+ flzuint8* op = (flzuint8*) output;
+
+ const flzuint8* htab[HASH_SIZE];
+ const flzuint8** hslot;
+ flzuint32 hval;
+
+ flzuint32 copy;
+
+ /* sanity check */
+ if(FASTLZ_UNEXPECT_CONDITIONAL(length < 4))
+ {
+ if(length)
+ {
+ /* create literal copy only */
+ *op++ = length-1;
+ ip_bound++;
+ while(ip <= ip_bound)
+ *op++ = *ip++;
+ return length+1;
+ }
+ else
+ return 0;
+ }
+
+ /* initializes hash table */
+ for (hslot = htab; hslot < htab + HASH_SIZE; hslot++)
+ *hslot = ip;
+
+ /* we start with literal copy */
+ copy = 2;
+ *op++ = MAX_COPY-1;
+ *op++ = *ip++;
+ *op++ = *ip++;
+
+ /* main loop */
+ while(FASTLZ_EXPECT_CONDITIONAL(ip < ip_limit))
+ {
+ const flzuint8* ref;
+ flzuint32 distance;
+
+ /* minimum match length */
+ flzuint32 len = 3;
+
+ /* comparison starting-point */
+ const flzuint8* anchor = ip;
+
+ /* check for a run */
+#if FASTLZ_LEVEL==2
+ if(ip[0] == ip[-1] && FASTLZ_READU16(ip-1)==FASTLZ_READU16(ip+1))
+ {
+ distance = 1;
+ /* ip += 3; */ /* scan-build, never used */
+ ref = anchor - 1 + 3;
+ goto match;
+ }
+#endif
+
+ /* find potential match */
+ HASH_FUNCTION(hval,ip);
+ hslot = htab + hval;
+ ref = htab[hval];
+
+ /* calculate distance to the match */
+ distance = anchor - ref;
+
+ /* update hash table */
+ *hslot = anchor;
+
+ /* is this a match? check the first 3 bytes */
+ if(distance==0 ||
+#if FASTLZ_LEVEL==1
+ (distance >= MAX_DISTANCE) ||
+#else
+ (distance >= MAX_FARDISTANCE) ||
+#endif
+ *ref++ != *ip++ || *ref++!=*ip++ || *ref++!=*ip++)
+ goto literal;
+
+#if FASTLZ_LEVEL==2
+ /* far, needs at least 5-byte match */
+ if(distance >= MAX_DISTANCE)
+ {
+ if(*ip++ != *ref++ || *ip++!= *ref++)
+ goto literal;
+ len += 2;
+ }
+
+ match:
+#endif
+
+ /* last matched byte */
+ ip = anchor + len;
+
+ /* distance is biased */
+ distance--;
+
+ if(!distance)
+ {
+ /* zero distance means a run */
+ flzuint8 x = ip[-1];
+ while(ip < ip_bound)
+ if(*ref++ != x) break; else ip++;
+ }
+ else
+ for(;;)
+ {
+ /* safe because the outer check against ip limit */
+ if(*ref++ != *ip++) break;
+ if(*ref++ != *ip++) break;
+ if(*ref++ != *ip++) break;
+ if(*ref++ != *ip++) break;
+ if(*ref++ != *ip++) break;
+ if(*ref++ != *ip++) break;
+ if(*ref++ != *ip++) break;
+ if(*ref++ != *ip++) break;
+ while(ip < ip_bound)
+ if(*ref++ != *ip++) break;
+ break;
+ }
+
+ /* if we have copied something, adjust the copy count */
+ if(copy)
+ /* copy is biased, '0' means 1 byte copy */
+ *(op-copy-1) = copy-1;
+ else
+ /* back, to overwrite the copy count */
+ op--;
+
+ /* reset literal counter */
+ copy = 0;
+
+ /* length is biased, '1' means a match of 3 bytes */
+ ip -= 3;
+ len = ip - anchor;
+
+ /* encode the match */
+#if FASTLZ_LEVEL==2
+ if(distance < MAX_DISTANCE)
+ {
+ if(len < 7)
+ {
+ *op++ = (len << 5) + (distance >> 8);
+ *op++ = (distance & 255);
+ }
+ else
+ {
+ *op++ = (7 << 5) + (distance >> 8);
+ for(len-=7; len >= 255; len-= 255)
+ *op++ = 255;
+ *op++ = len;
+ *op++ = (distance & 255);
+ }
+ }
+ else
+ {
+ /* far away, but not yet in the another galaxy... */
+ if(len < 7)
+ {
+ distance -= MAX_DISTANCE;
+ *op++ = (len << 5) + 31;
+ *op++ = 255;
+ *op++ = distance >> 8;
+ *op++ = distance & 255;
+ }
+ else
+ {
+ distance -= MAX_DISTANCE;
+ *op++ = (7 << 5) + 31;
+ for(len-=7; len >= 255; len-= 255)
+ *op++ = 255;
+ *op++ = len;
+ *op++ = 255;
+ *op++ = distance >> 8;
+ *op++ = distance & 255;
+ }
+ }
+#else
+
+ if(FASTLZ_UNEXPECT_CONDITIONAL(len > MAX_LEN-2))
+ while(len > MAX_LEN-2)
+ {
+ *op++ = (7 << 5) + (distance >> 8);
+ *op++ = MAX_LEN - 2 - 7 -2;
+ *op++ = (distance & 255);
+ len -= MAX_LEN-2;
+ }
+
+ if(len < 7)
+ {
+ *op++ = (len << 5) + (distance >> 8);
+ *op++ = (distance & 255);
+ }
+ else
+ {
+ *op++ = (7 << 5) + (distance >> 8);
+ *op++ = len - 7;
+ *op++ = (distance & 255);
+ }
+#endif
+
+ /* update the hash at match boundary */
+ HASH_FUNCTION(hval,ip);
+ htab[hval] = ip++;
+ HASH_FUNCTION(hval,ip);
+ htab[hval] = ip++;
+
+ /* assuming literal copy */
+ *op++ = MAX_COPY-1;
+
+ continue;
+
+ literal:
+ *op++ = *anchor++;
+ ip = anchor;
+ copy++;
+ if(FASTLZ_UNEXPECT_CONDITIONAL(copy == MAX_COPY))
+ {
+ copy = 0;
+ *op++ = MAX_COPY-1;
+ }
+ }
+
+ /* left-over as literal copy */
+ ip_bound++;
+ while(ip <= ip_bound)
+ {
+ *op++ = *ip++;
+ copy++;
+ if(copy == MAX_COPY)
+ {
+ copy = 0;
+ *op++ = MAX_COPY-1;
+ }
+ }
+
+ /* if we have copied something, adjust the copy length */
+ if(copy)
+ *(op-copy-1) = copy-1;
+ else
+ op--;
+
+#if FASTLZ_LEVEL==2
+ /* marker for fastlz2 */
+ *(flzuint8*)output |= (1 << 5);
+#endif
+
+ return op - (flzuint8*)output;
+}
+
+static FASTLZ_INLINE int FASTLZ_DECOMPRESSOR(const void* input, int length, void* output, int maxout)
+{
+ const flzuint8* ip = (const flzuint8*) input;
+ const flzuint8* ip_limit = ip + length;
+ flzuint8* op = (flzuint8*) output;
+ flzuint8* op_limit = op + maxout;
+ flzuint32 ctrl = (*ip++) & 31;
+ int loop = 1;
+
+ do
+ {
+ const flzuint8* ref = op;
+ flzuint32 len = ctrl >> 5;
+ flzuint32 ofs = (ctrl & 31) << 8;
+
+ if(ctrl >= 32)
+ {
+#if FASTLZ_LEVEL==2
+ flzuint8 code;
+#endif
+ len--;
+ ref -= ofs;
+ if (len == 7-1)
+#if FASTLZ_LEVEL==1
+ len += *ip++;
+ ref -= *ip++;
+#else
+ do
+ {
+ code = *ip++;
+ len += code;
+ } while (code==255);
+ code = *ip++;
+ ref -= code;
+
+ /* match from 16-bit distance */
+ if(FASTLZ_UNEXPECT_CONDITIONAL(code==255))
+ if(FASTLZ_EXPECT_CONDITIONAL(ofs==(31 << 8)))
+ {
+ ofs = (*ip++) << 8;
+ ofs += *ip++;
+ ref = op - ofs - MAX_DISTANCE;
+ }
+#endif
+
+#ifdef FASTLZ_SAFE
+ if (FASTLZ_UNEXPECT_CONDITIONAL(op + len + 3 > op_limit))
+ return 0;
+
+ if (FASTLZ_UNEXPECT_CONDITIONAL(ref-1 < (flzuint8 *)output))
+ return 0;
+#endif
+
+ if(FASTLZ_EXPECT_CONDITIONAL(ip < ip_limit))
+ ctrl = *ip++;
+ else
+ loop = 0;
+
+ if(ref == op)
+ {
+ /* optimize copy for a run */
+ flzuint8 b = ref[-1];
+ *op++ = b;
+ *op++ = b;
+ *op++ = b;
+ for(; len; --len)
+ *op++ = b;
+ }
+ else
+ {
+#if !defined(FASTLZ_STRICT_ALIGN)
+ const flzuint16* p;
+ flzuint16* q;
+#endif
+ /* copy from reference */
+ ref--;
+ *op++ = *ref++;
+ *op++ = *ref++;
+ *op++ = *ref++;
+
+#if !defined(FASTLZ_STRICT_ALIGN)
+ /* copy a byte, so that now it's word aligned */
+ if(len & 1)
+ {
+ *op++ = *ref++;
+ len--;
+ }
+
+ /* copy 16-bit at once */
+ q = (flzuint16*) op;
+ op += len;
+ p = (const flzuint16*) ref;
+ for(len>>=1; len > 4; len-=4)
+ {
+ *q++ = *p++;
+ *q++ = *p++;
+ *q++ = *p++;
+ *q++ = *p++;
+ }
+ for(; len; --len)
+ *q++ = *p++;
+#else
+ for(; len; --len)
+ *op++ = *ref++;
+#endif
+ }
+ }
+ else
+ {
+ ctrl++;
+#ifdef FASTLZ_SAFE
+ if (FASTLZ_UNEXPECT_CONDITIONAL(op + ctrl > op_limit))
+ return 0;
+ if (FASTLZ_UNEXPECT_CONDITIONAL(ip + ctrl > ip_limit))
+ return 0;
+#endif
+
+ *op++ = *ip++;
+ for(--ctrl; ctrl; ctrl--)
+ *op++ = *ip++;
+
+ loop = FASTLZ_EXPECT_CONDITIONAL(ip < ip_limit);
+ if(loop)
+ ctrl = *ip++;
+ }
+ }
+ while(FASTLZ_EXPECT_CONDITIONAL(loop));
+
+ return op - (flzuint8*)output;
+}
+
+#endif /* !defined(FASTLZ_COMPRESSOR) && !defined(FASTLZ_DECOMPRESSOR) */
diff --git a/src/grt/fst/fastlz.h b/src/grt/fst/fastlz.h
new file mode 100644
index 000000000..8b4eac2e8
--- /dev/null
+++ b/src/grt/fst/fastlz.h
@@ -0,0 +1,107 @@
+/*
+ FastLZ - lightning-fast lossless compression library
+
+ Copyright (C) 2007 Ariya Hidayat (ariya@kde.org)
+ Copyright (C) 2006 Ariya Hidayat (ariya@kde.org)
+ Copyright (C) 2005 Ariya Hidayat (ariya@kde.org)
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+*/
+
+#ifndef FASTLZ_H
+#define FASTLZ_H
+
+#include <inttypes.h>
+
+#define flzuint8 uint8_t
+#define flzuint16 uint16_t
+#define flzuint32 uint32_t
+
+
+#define FASTLZ_VERSION 0x000100
+
+#define FASTLZ_VERSION_MAJOR 0
+#define FASTLZ_VERSION_MINOR 0
+#define FASTLZ_VERSION_REVISION 0
+
+#define FASTLZ_VERSION_STRING "0.1.0"
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+/**
+ Compress a block of data in the input buffer and returns the size of
+ compressed block. The size of input buffer is specified by length. The
+ minimum input buffer size is 16.
+
+ The output buffer must be at least 5% larger than the input buffer
+ and can not be smaller than 66 bytes.
+
+ If the input is not compressible, the return value might be larger than
+ length (input buffer size).
+
+ The input buffer and the output buffer can not overlap.
+*/
+
+int fastlz_compress(const void* input, int length, void* output);
+
+/**
+ Decompress a block of compressed data and returns the size of the
+ decompressed block. If error occurs, e.g. the compressed data is
+ corrupted or the output buffer is not large enough, then 0 (zero)
+ will be returned instead.
+
+ The input buffer and the output buffer can not overlap.
+
+ Decompression is memory safe and guaranteed not to write the output buffer
+ more than what is specified in maxout.
+ */
+
+int fastlz_decompress(const void* input, int length, void* output, int maxout);
+
+/**
+ Compress a block of data in the input buffer and returns the size of
+ compressed block. The size of input buffer is specified by length. The
+ minimum input buffer size is 16.
+
+ The output buffer must be at least 5% larger than the input buffer
+ and can not be smaller than 66 bytes.
+
+ If the input is not compressible, the return value might be larger than
+ length (input buffer size).
+
+ The input buffer and the output buffer can not overlap.
+
+ Compression level can be specified in parameter level. At the moment,
+ only level 1 and level 2 are supported.
+ Level 1 is the fastest compression and generally useful for short data.
+ Level 2 is slightly slower but it gives better compression ratio.
+
+ Note that the compressed data, regardless of the level, can always be
+ decompressed using the function fastlz_decompress above.
+*/
+
+int fastlz_compress_level(int level, const void* input, int length, void* output);
+
+#if defined (__cplusplus)
+}
+#endif
+
+#endif /* FASTLZ_H */
diff --git a/src/grt/fst/fstapi.c b/src/grt/fst/fstapi.c
new file mode 100644
index 000000000..b0d7dfc40
--- /dev/null
+++ b/src/grt/fst/fstapi.c
@@ -0,0 +1,6531 @@
+/*
+ * Copyright (c) 2009-2014 Tony Bybell.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * possible disables:
+ *
+ * FST_DYNAMIC_ALIAS_DISABLE : dynamic aliases are not processed
+ * FST_DYNAMIC_ALIAS2_DISABLE : new encoding for dynamic aliases is not generated
+ * FST_WRITEX_DISABLE : fast write I/O routines are disabled
+ *
+ * possible enables:
+ *
+ * FST_DEBUG : not for production use, only enable for development
+ * FST_REMOVE_DUPLICATE_VC : glitch removal (has writer performance impact)
+ * HAVE_LIBPTHREAD -> FST_WRITER_PARALLEL : enables inclusion of parallel writer code
+ * FST_DO_MISALIGNED_OPS (defined automatically for x86 and some others) : CPU architecture can handle misaligned loads/stores
+ * _WAVE_HAVE_JUDY : use Judy arrays instead of Jenkins (undefine if LGPL is not acceptable)
+ *
+ */
+
+#include <config.h>
+
+#include "fstapi.h"
+#include "fastlz.h"
+#include "lz4.h"
+
+#ifndef HAVE_LIBPTHREAD
+#undef FST_WRITER_PARALLEL
+#endif
+
+#ifdef FST_WRITER_PARALLEL
+#include <pthread.h>
+#endif
+
+#ifdef __MINGW32__
+#include <windows.h>
+#endif
+
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#elif defined(__GNUC__)
+#ifndef __MINGW32__
+#ifndef alloca
+#define alloca __builtin_alloca
+#endif
+#else
+#include <malloc.h>
+#endif
+#elif defined(_MSC_VER)
+#include <malloc.h>
+#define alloca _alloca
+#endif
+
+#ifndef PATH_MAX
+#define PATH_MAX (4096)
+#endif
+
+/* note that Judy versus Jenkins requires more experimentation: they are */
+/* functionally equivalent though it appears Jenkins is slightly faster. */
+/* in addition, Jenkins is not bound by the LGPL. */
+#ifdef _WAVE_HAVE_JUDY
+#include <Judy.h>
+#else
+/* should be more than enough for fstWriterSetSourceStem() */
+#define FST_PATH_HASHMASK ((1UL << 16) - 1)
+typedef const void *Pcvoid_t;
+typedef void *Pvoid_t;
+typedef void **PPvoid_t;
+#define JudyHSIns(a,b,c,d) JenkinsIns((a),(b),(c),(hashmask))
+#define JudyHSFreeArray(a,b) JenkinsFree((a),(hashmask))
+void JenkinsFree(void *base_i, uint32_t hashmask);
+void **JenkinsIns(void *base_i, const unsigned char *mem, uint32_t length, uint32_t hashmask);
+#endif
+
+
+#ifndef FST_WRITEX_DISABLE
+#define FST_WRITEX_MAX (64 * 1024)
+#else
+#define fstWritex(a,b,c) fstFwrite((b), (c), 1, fv)
+#endif
+
+
+/* these defines have a large impact on writer speed when a model has a */
+/* huge number of symbols. as a default, use 128MB and increment when */
+/* every 1M signals are defined. */
+#define FST_BREAK_SIZE (1UL << 27)
+#define FST_BREAK_ADD_SIZE (1UL << 22)
+#define FST_BREAK_SIZE_MAX (1UL << 31)
+#define FST_ACTIVATE_HUGE_BREAK (1000000)
+#define FST_ACTIVATE_HUGE_INC (1000000)
+
+#define FST_WRITER_STR "fstWriter"
+#define FST_ID_NAM_SIZ (512)
+#define FST_ID_NAM_ATTR_SIZ (65536+4096)
+#define FST_DOUBLE_ENDTEST (2.7182818284590452354)
+#define FST_HDR_SIM_VERSION_SIZE (128)
+#define FST_HDR_DATE_SIZE (119)
+#define FST_HDR_FILETYPE_SIZE (1)
+#define FST_HDR_TIMEZERO_SIZE (8)
+#define FST_GZIO_LEN (32768)
+#define FST_HDR_FOURPACK_DUO_SIZE (4*1024*1024)
+
+#if defined(__i386__) || defined(__x86_64__) || defined(_AIX)
+#define FST_DO_MISALIGNED_OPS
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+#define FST_MACOSX
+#include <sys/sysctl.h>
+#endif
+
+
+/***********************/
+/*** ***/
+/*** common function ***/
+/*** ***/
+/***********************/
+
+#ifdef __MINGW32__
+#include <io.h>
+#ifndef HAVE_FSEEKO
+#define ftello ftell
+#define fseeko fseek
+#endif
+#endif
+
+/*
+ * the recoded "extra" values...
+ * note that FST_RCV_Q is currently unused and is for future expansion.
+ * its intended use is as another level of escape such that any arbitrary
+ * value can be stored as the value: { time_delta, 8 bits, FST_RCV_Q }.
+ * this is currently not implemented so that the branchless decode is:
+ * uint32_t shcnt = 2 << (vli & 1); tdelta = vli >> shcnt;
+ */
+#define FST_RCV_X (1 | (0<<1))
+#define FST_RCV_Z (1 | (1<<1))
+#define FST_RCV_H (1 | (2<<1))
+#define FST_RCV_U (1 | (3<<1))
+#define FST_RCV_W (1 | (4<<1))
+#define FST_RCV_L (1 | (5<<1))
+#define FST_RCV_D (1 | (6<<1))
+#define FST_RCV_Q (1 | (7<<1))
+
+#define FST_RCV_STR "xzhuwl-?"
+/* 01234567 */
+
+
+/*
+ * prevent old file overwrite when currently being read
+ */
+static FILE *unlink_fopen(const char *nam, const char *mode)
+{
+unlink(nam);
+return(fopen(nam, mode));
+}
+
+
+/*
+ * system-specific temp file handling
+ */
+#ifdef __MINGW32__
+
+static FILE* tmpfile_open(char **nam)
+{
+char *fname = NULL;
+TCHAR szTempFileName[MAX_PATH];
+TCHAR lpTempPathBuffer[MAX_PATH];
+DWORD dwRetVal = 0;
+UINT uRetVal = 0;
+FILE *fh = NULL;
+
+if(nam) /* cppcheck warning fix: nam is always defined, so this is not needed */
+ {
+ dwRetVal = GetTempPath(MAX_PATH, lpTempPathBuffer);
+ if((dwRetVal > MAX_PATH) || (dwRetVal == 0))
+ {
+ fprintf(stderr, "GetTempPath() failed in "__FILE__" line %d, exiting.\n", __LINE__);
+ exit(255);
+ }
+ else
+ {
+ uRetVal = GetTempFileName(lpTempPathBuffer, TEXT("FSTW"), 0, szTempFileName);
+ if (uRetVal == 0)
+ {
+ fprintf(stderr, "GetTempFileName() failed in "__FILE__" line %d, exiting.\n", __LINE__);
+ exit(255);
+ }
+ else
+ {
+ fname = strdup(szTempFileName);
+ }
+ }
+
+ if(fname)
+ {
+ *nam = fname;
+ fh = unlink_fopen(fname, "w+b");
+ }
+ }
+
+return(fh);
+}
+
+#else
+
+static FILE* tmpfile_open(char **nam)
+{
+FILE *f = tmpfile(); /* replace with mkstemp() + fopen(), etc if this is not good enough */
+if(nam) { *nam = NULL; }
+return(f);
+}
+
+#endif
+
+
+static void tmpfile_close(FILE **f, char **nam)
+{
+if(f)
+ {
+ if(*f) { fclose(*f); *f = NULL; }
+ }
+
+if(nam)
+ {
+ if(*nam)
+ {
+ unlink(*nam);
+ free(*nam);
+ *nam = NULL;
+ }
+ }
+}
+
+/*****************************************/
+
+
+/*
+ * to remove warn_unused_result compile time messages
+ * (in the future there needs to be results checking)
+ */
+static size_t fstFread(void *buf, size_t siz, size_t cnt, FILE *fp)
+{
+return(fread(buf, siz, cnt, fp));
+}
+
+static size_t fstFwrite(const void *buf, size_t siz, size_t cnt, FILE *fp)
+{
+return(fwrite(buf, siz, cnt, fp));
+}
+
+static int fstFtruncate(int fd, off_t length)
+{
+return(ftruncate(fd, length));
+}
+
+
+/*
+ * realpath compatibility
+ */
+static char *fstRealpath(const char *path, char *resolved_path)
+{
+#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED || defined __CYGWIN__ || defined HAVE_REALPATH
+
+#if (defined(__MACH__) && defined(__APPLE__))
+if(!resolved_path)
+ {
+ resolved_path = malloc(PATH_MAX+1); /* fixes bug on Leopard when resolved_path == NULL */
+ }
+#endif
+
+return(realpath(path, resolved_path));
+
+#else
+#ifdef __MINGW32__
+if(!resolved_path)
+ {
+ resolved_path = malloc(PATH_MAX+1);
+ }
+return(_fullpath(resolved_path, path, PATH_MAX));
+#else
+return(NULL);
+#endif
+#endif
+}
+
+
+/*
+ * mmap compatibility
+ */
+#if defined __CYGWIN__ || defined __MINGW32__
+#include <limits.h>
+#define fstMmap(__addr,__len,__prot,__flags,__fd,__off) fstMmap2((__len), (__fd), (__off))
+#define fstMunmap(__addr,__len) free(__addr)
+
+static void *fstMmap2(size_t __len, int __fd, off_t __off)
+{
+(void)__off;
+
+unsigned char *pnt = malloc(__len);
+off_t cur_offs = lseek(__fd, 0, SEEK_CUR);
+size_t i;
+
+lseek(__fd, 0, SEEK_SET);
+for(i=0;i<__len;i+=SSIZE_MAX)
+ {
+ read(__fd, pnt + i, ((__len - i) >= SSIZE_MAX) ? SSIZE_MAX : (__len - i));
+ }
+lseek(__fd, cur_offs, SEEK_SET);
+return(pnt);
+}
+#else
+#include <sys/mman.h>
+#if defined(__SUNPRO_C)
+#define FST_CADDR_T_CAST (caddr_t)
+#else
+#define FST_CADDR_T_CAST
+#endif
+#define fstMmap(__addr,__len,__prot,__flags,__fd,__off) (void*)mmap(FST_CADDR_T_CAST (__addr),(__len),(__prot),(__flags),(__fd),(__off))
+#define fstMunmap(__addr,__len) { if(__addr) munmap(FST_CADDR_T_CAST (__addr),(__len)); }
+#endif
+
+
+/*
+ * regular and variable-length integer access functions
+ */
+#ifdef FST_DO_MISALIGNED_OPS
+#define fstGetUint32(x) (*(uint32_t *)(x))
+#else
+static uint32_t fstGetUint32(unsigned char *mem)
+{
+uint32_t u32;
+unsigned char *buf = (unsigned char *)(&u32);
+
+buf[0] = mem[0];
+buf[1] = mem[1];
+buf[2] = mem[2];
+buf[3] = mem[3];
+
+return(*(uint32_t *)buf);
+}
+#endif
+
+
+static int fstWriterUint64(FILE *handle, uint64_t v)
+{
+unsigned char buf[8];
+int i;
+
+for(i=7;i>=0;i--)
+ {
+ buf[i] = v & 0xff;
+ v >>= 8;
+ }
+
+fstFwrite(buf, 8, 1, handle);
+return(8);
+}
+
+
+static uint64_t fstReaderUint64(FILE *f)
+{
+uint64_t val = 0;
+unsigned char buf[sizeof(uint64_t)];
+unsigned int i;
+
+fstFread(buf, sizeof(uint64_t), 1, f);
+for(i=0;i<sizeof(uint64_t);i++)
+ {
+ val <<= 8;
+ val |= buf[i];
+ }
+
+return(val);
+}
+
+
+static uint32_t fstGetVarint32(unsigned char *mem, int *skiplen)
+{
+unsigned char *mem_orig = mem;
+uint32_t rc = 0;
+while(*mem & 0x80)
+ {
+ mem++;
+ }
+
+*skiplen = mem - mem_orig + 1;
+for(;;)
+ {
+ rc <<= 7;
+ rc |= (uint32_t)(*mem & 0x7f);
+ if(mem == mem_orig)
+ {
+ break;
+ }
+ mem--;
+ }
+
+return(rc);
+}
+
+
+static uint32_t fstGetVarint32Length(unsigned char *mem)
+{
+unsigned char *mem_orig = mem;
+
+while(*mem & 0x80)
+ {
+ mem++;
+ }
+
+return(mem - mem_orig + 1);
+}
+
+
+static uint32_t fstGetVarint32NoSkip(unsigned char *mem)
+{
+unsigned char *mem_orig = mem;
+uint32_t rc = 0;
+while(*mem & 0x80)
+ {
+ mem++;
+ }
+
+for(;;)
+ {
+ rc <<= 7;
+ rc |= (uint32_t)(*mem & 0x7f);
+ if(mem == mem_orig)
+ {
+ break;
+ }
+ mem--;
+ }
+
+return(rc);
+}
+
+
+static unsigned char *fstCopyVarint32ToLeft(unsigned char *pnt, uint32_t v)
+{
+unsigned char *spnt;
+uint32_t nxt = v;
+int cnt = 1;
+int i;
+
+while((nxt = nxt>>7)) /* determine len to avoid temp buffer copying to cut down on load-hit-store */
+ {
+ cnt++;
+ }
+
+pnt -= cnt;
+spnt = pnt;
+cnt--;
+
+for(i=0;i<cnt;i++) /* now generate left to right as normal */
+ {
+ nxt = v>>7;
+ *(spnt++) = ((unsigned char)v) | 0x80;
+ v = nxt;
+ }
+*spnt = (unsigned char)v;
+
+return(pnt);
+}
+
+
+static unsigned char *fstCopyVarint64ToRight(unsigned char *pnt, uint64_t v)
+{
+uint64_t nxt;
+
+while((nxt = v>>7))
+ {
+ *(pnt++) = ((unsigned char)v) | 0x80;
+ v = nxt;
+ }
+*(pnt++) = (unsigned char)v;
+
+return(pnt);
+}
+
+
+static uint64_t fstGetVarint64(unsigned char *mem, int *skiplen)
+{
+unsigned char *mem_orig = mem;
+uint64_t rc = 0;
+while(*mem & 0x80)
+ {
+ mem++;
+ }
+
+*skiplen = mem - mem_orig + 1;
+for(;;)
+ {
+ rc <<= 7;
+ rc |= (uint64_t)(*mem & 0x7f);
+ if(mem == mem_orig)
+ {
+ break;
+ }
+ mem--;
+ }
+
+return(rc);
+}
+
+
+static uint32_t fstReaderVarint32(FILE *f)
+{
+unsigned char buf[5];
+unsigned char *mem = buf;
+uint32_t rc = 0;
+int ch;
+
+do
+ {
+ ch = fgetc(f);
+ *(mem++) = ch;
+ } while(ch & 0x80);
+mem--;
+
+for(;;)
+ {
+ rc <<= 7;
+ rc |= (uint32_t)(*mem & 0x7f);
+ if(mem == buf)
+ {
+ break;
+ }
+ mem--;
+ }
+
+return(rc);
+}
+
+
+static uint32_t fstReaderVarint32WithSkip(FILE *f, uint32_t *skiplen)
+{
+unsigned char buf[5];
+unsigned char *mem = buf;
+uint32_t rc = 0;
+int ch;
+
+do
+ {
+ ch = fgetc(f);
+ *(mem++) = ch;
+ } while(ch & 0x80);
+*skiplen = mem - buf;
+mem--;
+
+for(;;)
+ {
+ rc <<= 7;
+ rc |= (uint32_t)(*mem & 0x7f);
+ if(mem == buf)
+ {
+ break;
+ }
+ mem--;
+ }
+
+return(rc);
+}
+
+
+static uint64_t fstReaderVarint64(FILE *f)
+{
+unsigned char buf[16];
+unsigned char *mem = buf;
+uint64_t rc = 0;
+int ch;
+
+do
+ {
+ ch = fgetc(f);
+ *(mem++) = ch;
+ } while(ch & 0x80);
+mem--;
+
+for(;;)
+ {
+ rc <<= 7;
+ rc |= (uint64_t)(*mem & 0x7f);
+ if(mem == buf)
+ {
+ break;
+ }
+ mem--;
+ }
+
+return(rc);
+}
+
+
+static int fstWriterVarint(FILE *handle, uint64_t v)
+{
+uint64_t nxt;
+unsigned char buf[10]; /* ceil(64/7) = 10 */
+unsigned char *pnt = buf;
+int len;
+
+while((nxt = v>>7))
+ {
+ *(pnt++) = ((unsigned char)v) | 0x80;
+ v = nxt;
+ }
+*(pnt++) = (unsigned char)v;
+
+len = pnt-buf;
+fstFwrite(buf, len, 1, handle);
+return(len);
+}
+
+
+/* signed integer read/write routines are currently unused */
+static int64_t fstGetSVarint64(unsigned char *mem, int *skiplen)
+{
+unsigned char *mem_orig = mem;
+int64_t rc = 0;
+const int64_t one = 1;
+const int siz = sizeof(int64_t) * 8;
+int shift = 0;
+unsigned char byt;
+
+do {
+ byt = *(mem++);
+ rc |= ((int64_t)(byt & 0x7f)) << shift;
+ shift += 7;
+
+ } while(byt & 0x80);
+
+if((shift<siz) && (byt & 0x40))
+ {
+ rc |= -(one << shift); /* sign extend */
+ }
+
+*skiplen = mem - mem_orig;
+
+return(rc);
+}
+
+
+static int fstWriterSVarint(FILE *handle, int64_t v)
+{
+unsigned char buf[15]; /* ceil(64/7) = 10 + sign byte padded way up */
+unsigned char byt;
+unsigned char *pnt = buf;
+int more = 1;
+int len;
+
+do {
+ byt = v | 0x80;
+ v >>= 7;
+
+ if (((!v) && (!(byt & 0x40))) || ((v == -1) && (byt & 0x40)))
+ {
+ more = 0;
+ byt &= 0x7f;
+ }
+
+ *(pnt++) = byt;
+ } while(more);
+
+len = pnt-buf;
+fstFwrite(buf, len, 1, handle);
+return(len);
+}
+
+
+/***********************/
+/*** ***/
+/*** writer function ***/
+/*** ***/
+/***********************/
+
+/*
+ * private structs
+ */
+struct fstBlackoutChain
+{
+struct fstBlackoutChain *next;
+uint64_t tim;
+unsigned active : 1;
+};
+
+
+struct fstWriterContext
+{
+FILE *handle;
+FILE *hier_handle;
+FILE *geom_handle;
+FILE *valpos_handle;
+FILE *curval_handle;
+FILE *tchn_handle;
+
+unsigned char *vchg_mem;
+
+off_t hier_file_len;
+
+uint32_t *valpos_mem;
+unsigned char *curval_mem;
+
+char *filename;
+
+fstHandle maxhandle;
+fstHandle numsigs;
+uint32_t maxvalpos;
+
+unsigned vc_emitted : 1;
+unsigned is_initial_time : 1;
+unsigned fourpack : 1;
+unsigned fastpack : 1;
+
+int64_t timezero;
+off_t section_header_truncpos;
+uint32_t tchn_cnt, tchn_idx;
+uint64_t curtime;
+uint64_t firsttime;
+uint32_t vchg_siz;
+uint32_t vchg_alloc_siz;
+
+uint32_t secnum;
+off_t section_start;
+
+uint32_t numscopes;
+double nan; /* nan value for uninitialized doubles */
+
+struct fstBlackoutChain *blackout_head;
+struct fstBlackoutChain *blackout_curr;
+uint32_t num_blackouts;
+
+uint64_t dump_size_limit;
+
+unsigned char filetype; /* default is 0, FST_FT_VERILOG */
+
+unsigned compress_hier : 1;
+unsigned repack_on_close : 1;
+unsigned skip_writing_section_hdr : 1;
+unsigned size_limit_locked : 1;
+unsigned section_header_only : 1;
+unsigned flush_context_pending : 1;
+unsigned parallel_enabled : 1;
+unsigned parallel_was_enabled : 1;
+
+/* should really be semaphores, but are bytes to cut down on read-modify-write window size */
+unsigned char already_in_flush; /* in case control-c handlers interrupt */
+unsigned char already_in_close; /* in case control-c handlers interrupt */
+
+#ifdef FST_WRITER_PARALLEL
+pthread_mutex_t mutex;
+pthread_t thread;
+pthread_attr_t thread_attr;
+struct fstWriterContext *xc_parent;
+#endif
+
+size_t fst_orig_break_size;
+size_t fst_orig_break_add_size;
+
+size_t fst_break_size;
+size_t fst_break_add_size;
+
+size_t fst_huge_break_size;
+
+fstHandle next_huge_break;
+
+Pvoid_t path_array;
+uint32_t path_array_count;
+
+unsigned fseek_failed : 1;
+
+char *geom_handle_nam;
+char *valpos_handle_nam;
+char *curval_handle_nam;
+char *tchn_handle_nam;
+};
+
+
+static int fstWriterFseeko(struct fstWriterContext *xc, FILE *stream, off_t offset, int whence)
+{
+int rc = fseeko(stream, offset, whence);
+
+if(rc<0)
+ {
+ xc->fseek_failed = 1;
+#ifdef FST_DEBUG
+ fprintf(stderr, "Seek to #%"PRId64" (whence = %d) failed!\n", offset, whence);
+ perror("Why");
+#endif
+ }
+
+return(rc);
+}
+
+
+static uint32_t fstWriterUint32WithVarint32(struct fstWriterContext *xc, uint32_t *u, uint32_t v, const void *dbuf, uint32_t siz)
+{
+unsigned char *buf = xc->vchg_mem + xc->vchg_siz;
+unsigned char *pnt = buf;
+uint32_t nxt;
+uint32_t len;
+
+#ifdef FST_DO_MISALIGNED_OPS
+(*(uint32_t *)(pnt)) = (*(uint32_t *)(u));
+#else
+memcpy(pnt, u, sizeof(uint32_t));
+#endif
+pnt += 4;
+
+while((nxt = v>>7))
+ {
+ *(pnt++) = ((unsigned char)v) | 0x80;
+ v = nxt;
+ }
+*(pnt++) = (unsigned char)v;
+memcpy(pnt, dbuf, siz);
+
+len = pnt-buf + siz;
+return(len);
+}
+
+
+static uint32_t fstWriterUint32WithVarint32AndLength(struct fstWriterContext *xc, uint32_t *u, uint32_t v, const void *dbuf, uint32_t siz)
+{
+unsigned char *buf = xc->vchg_mem + xc->vchg_siz;
+unsigned char *pnt = buf;
+uint32_t nxt;
+uint32_t len;
+
+#ifdef FST_DO_MISALIGNED_OPS
+(*(uint32_t *)(pnt)) = (*(uint32_t *)(u));
+#else
+memcpy(pnt, u, sizeof(uint32_t));
+#endif
+pnt += 4;
+
+while((nxt = v>>7))
+ {
+ *(pnt++) = ((unsigned char)v) | 0x80;
+ v = nxt;
+ }
+*(pnt++) = (unsigned char)v;
+
+v = siz;
+while((nxt = v>>7))
+ {
+ *(pnt++) = ((unsigned char)v) | 0x80;
+ v = nxt;
+ }
+*(pnt++) = (unsigned char)v;
+
+memcpy(pnt, dbuf, siz);
+
+len = pnt-buf + siz;
+return(len);
+}
+
+
+/*
+ * header bytes, write here so defines are set up before anything else
+ * that needs to use them
+ */
+static void fstWriterEmitHdrBytes(struct fstWriterContext *xc)
+{
+char vbuf[FST_HDR_SIM_VERSION_SIZE];
+char dbuf[FST_HDR_DATE_SIZE];
+double endtest = FST_DOUBLE_ENDTEST;
+time_t walltime;
+
+#define FST_HDR_OFFS_TAG (0)
+fputc(FST_BL_HDR, xc->handle); /* +0 tag */
+
+#define FST_HDR_OFFS_SECLEN (FST_HDR_OFFS_TAG + 1)
+fstWriterUint64(xc->handle, 329); /* +1 section length */
+
+#define FST_HDR_OFFS_START_TIME (FST_HDR_OFFS_SECLEN + 8)
+fstWriterUint64(xc->handle, 0); /* +9 start time */
+
+#define FST_HDR_OFFS_END_TIME (FST_HDR_OFFS_START_TIME + 8)
+fstWriterUint64(xc->handle, 0); /* +17 end time */
+
+#define FST_HDR_OFFS_ENDIAN_TEST (FST_HDR_OFFS_END_TIME + 8)
+fstFwrite(&endtest, 8, 1, xc->handle); /* +25 endian test for reals */
+
+#define FST_HDR_OFFS_MEM_USED (FST_HDR_OFFS_ENDIAN_TEST + 8)
+fstWriterUint64(xc->handle, xc->fst_break_size);/* +33 memory used by writer */
+
+#define FST_HDR_OFFS_NUM_SCOPES (FST_HDR_OFFS_MEM_USED + 8)
+fstWriterUint64(xc->handle, 0); /* +41 scope creation count */
+
+#define FST_HDR_OFFS_NUM_VARS (FST_HDR_OFFS_NUM_SCOPES + 8)
+fstWriterUint64(xc->handle, 0); /* +49 var creation count */
+
+#define FST_HDR_OFFS_MAXHANDLE (FST_HDR_OFFS_NUM_VARS + 8)
+fstWriterUint64(xc->handle, 0); /* +57 max var idcode */
+
+#define FST_HDR_OFFS_SECTION_CNT (FST_HDR_OFFS_MAXHANDLE + 8)
+fstWriterUint64(xc->handle, 0); /* +65 vc section count */
+
+#define FST_HDR_OFFS_TIMESCALE (FST_HDR_OFFS_SECTION_CNT + 8)
+fputc((-9)&255, xc->handle); /* +73 timescale 1ns */
+
+#define FST_HDR_OFFS_SIM_VERSION (FST_HDR_OFFS_TIMESCALE + 1)
+memset(vbuf, 0, FST_HDR_SIM_VERSION_SIZE);
+strcpy(vbuf, FST_WRITER_STR);
+fstFwrite(vbuf, FST_HDR_SIM_VERSION_SIZE, 1, xc->handle); /* +74 version */
+
+#define FST_HDR_OFFS_DATE (FST_HDR_OFFS_SIM_VERSION + FST_HDR_SIM_VERSION_SIZE)
+memset(dbuf, 0, FST_HDR_DATE_SIZE);
+time(&walltime);
+strcpy(dbuf, asctime(localtime(&walltime)));
+fstFwrite(dbuf, FST_HDR_DATE_SIZE, 1, xc->handle); /* +202 date */
+
+/* date size is deliberately overspecified at 119 bytes (originally 128) in order to provide backfill for new args */
+
+#define FST_HDR_OFFS_FILETYPE (FST_HDR_OFFS_DATE + FST_HDR_DATE_SIZE)
+fputc(xc->filetype, xc->handle); /* +321 filetype */
+
+#define FST_HDR_OFFS_TIMEZERO (FST_HDR_OFFS_FILETYPE + FST_HDR_FILETYPE_SIZE)
+fstWriterUint64(xc->handle, xc->timezero); /* +322 timezero */
+
+#define FST_HDR_LENGTH (FST_HDR_OFFS_TIMEZERO + FST_HDR_TIMEZERO_SIZE)
+ /* +330 next section starts here */
+fflush(xc->handle);
+}
+
+
+/*
+ * mmap functions
+ */
+static void fstWriterCreateMmaps(struct fstWriterContext *xc)
+{
+off_t curpos = ftello(xc->handle);
+
+fflush(xc->hier_handle);
+
+/* write out intermediate header */
+fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_START_TIME, SEEK_SET);
+fstWriterUint64(xc->handle, xc->firsttime);
+fstWriterUint64(xc->handle, xc->curtime);
+fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_NUM_SCOPES, SEEK_SET);
+fstWriterUint64(xc->handle, xc->numscopes);
+fstWriterUint64(xc->handle, xc->numsigs);
+fstWriterUint64(xc->handle, xc->maxhandle);
+fstWriterUint64(xc->handle, xc->secnum);
+fstWriterFseeko(xc, xc->handle, curpos, SEEK_SET);
+fflush(xc->handle);
+
+/* do mappings */
+if(!xc->valpos_mem)
+ {
+ fflush(xc->valpos_handle);
+ xc->valpos_mem = fstMmap(NULL, xc->maxhandle * 4 * sizeof(uint32_t), PROT_READ|PROT_WRITE, MAP_SHARED, fileno(xc->valpos_handle), 0);
+ }
+if(!xc->curval_mem)
+ {
+ fflush(xc->curval_handle);
+ xc->curval_mem = fstMmap(NULL, xc->maxvalpos, PROT_READ|PROT_WRITE, MAP_SHARED, fileno(xc->curval_handle), 0);
+ }
+}
+
+
+static void fstDestroyMmaps(struct fstWriterContext *xc, int is_closing)
+{
+(void)is_closing;
+
+fstMunmap(xc->valpos_mem, xc->maxhandle * 4 * sizeof(uint32_t));
+xc->valpos_mem = NULL;
+
+#if defined __CYGWIN__ || defined __MINGW32__
+if(xc->curval_mem)
+ {
+ if(!is_closing) /* need to flush out for next emulated mmap() read */
+ {
+ unsigned char *pnt = xc->curval_mem;
+ int __fd = fileno(xc->curval_handle);
+ off_t cur_offs = lseek(__fd, 0, SEEK_CUR);
+ size_t i;
+ size_t __len = xc->maxvalpos;
+
+ lseek(__fd, 0, SEEK_SET);
+ for(i=0;i<__len;i+=SSIZE_MAX)
+ {
+ write(__fd, pnt + i, ((__len - i) >= SSIZE_MAX) ? SSIZE_MAX : (__len - i));
+ }
+ lseek(__fd, cur_offs, SEEK_SET);
+ }
+ }
+#endif
+
+fstMunmap(xc->curval_mem, xc->maxvalpos);
+xc->curval_mem = NULL;
+}
+
+
+/*
+ * set up large and small memory usages
+ * crossover point in model is FST_ACTIVATE_HUGE_BREAK number of signals
+ */
+static void fstDetermineBreakSize(struct fstWriterContext *xc)
+{
+#if defined(__linux__) || defined(FST_MACOSX)
+int was_set = 0;
+
+#ifdef __linux__
+FILE *f = fopen("/proc/meminfo", "rb");
+
+if(f)
+ {
+ char buf[257];
+ char *s;
+ while(!feof(f))
+ {
+ buf[0] = 0;
+ s = fgets(buf, 256, f);
+ if(s && *s)
+ {
+ if(!strncmp(s, "MemTotal:", 9))
+ {
+ size_t v = atol(s+10);
+ v *= 1024; /* convert to bytes */
+ v /= 8; /* chop down to 1/8 physical memory */
+ if(v > FST_BREAK_SIZE)
+ {
+ if(v > FST_BREAK_SIZE_MAX)
+ {
+ v = FST_BREAK_SIZE_MAX;
+ }
+
+ xc->fst_huge_break_size = v;
+ was_set = 1;
+ break;
+ }
+ }
+ }
+ }
+
+ fclose(f);
+ }
+
+if(!was_set)
+ {
+ xc->fst_huge_break_size = FST_BREAK_SIZE;
+ }
+#else
+int mib[2];
+int64_t v;
+size_t length;
+
+mib[0] = CTL_HW;
+mib[1] = HW_MEMSIZE;
+length = sizeof(int64_t);
+if(!sysctl(mib, 2, &v, &length, NULL, 0))
+ {
+ v /= 8;
+
+ if(v > (int64_t)FST_BREAK_SIZE)
+ {
+ if(v > (int64_t)FST_BREAK_SIZE_MAX)
+ {
+ v = FST_BREAK_SIZE_MAX;
+ }
+
+ xc->fst_huge_break_size = v;
+ was_set = 1;
+ }
+ }
+
+if(!was_set)
+ {
+ xc->fst_huge_break_size = FST_BREAK_SIZE;
+ }
+#endif
+#else
+xc->fst_huge_break_size = FST_BREAK_SIZE;
+#endif
+
+xc->fst_break_size = xc->fst_orig_break_size = FST_BREAK_SIZE;
+xc->fst_break_add_size = xc->fst_orig_break_add_size = FST_BREAK_ADD_SIZE;
+xc->next_huge_break = FST_ACTIVATE_HUGE_BREAK;
+}
+
+
+/*
+ * file creation and close
+ */
+void *fstWriterCreate(const char *nam, int use_compressed_hier)
+{
+struct fstWriterContext *xc = calloc(1, sizeof(struct fstWriterContext));
+
+xc->compress_hier = use_compressed_hier;
+fstDetermineBreakSize(xc);
+
+if((!nam)||
+ (!(xc->handle=unlink_fopen(nam, "w+b"))))
+ {
+ free(xc);
+ xc=NULL;
+ }
+ else
+ {
+ int flen = strlen(nam);
+ char *hf = calloc(1, flen + 6);
+
+ memcpy(hf, nam, flen);
+ strcpy(hf + flen, ".hier");
+ xc->hier_handle = unlink_fopen(hf, "w+b");
+
+ xc->geom_handle = tmpfile_open(&xc->geom_handle_nam); /* .geom */
+ xc->valpos_handle = tmpfile_open(&xc->valpos_handle_nam); /* .offs */
+ xc->curval_handle = tmpfile_open(&xc->curval_handle_nam); /* .bits */
+ xc->tchn_handle = tmpfile_open(&xc->tchn_handle_nam); /* .tchn */
+ xc->vchg_alloc_siz = xc->fst_break_size + xc->fst_break_add_size;
+ xc->vchg_mem = malloc(xc->vchg_alloc_siz);
+
+ if(xc->hier_handle && xc->geom_handle && xc->valpos_handle && xc->curval_handle && xc->vchg_mem && xc->tchn_handle)
+ {
+ xc->filename = strdup(nam);
+ xc->is_initial_time = 1;
+
+ fstWriterEmitHdrBytes(xc);
+ xc->nan = strtod("NaN", NULL);
+#ifdef FST_WRITER_PARALLEL
+ pthread_mutex_init(&xc->mutex, NULL);
+ pthread_attr_init(&xc->thread_attr);
+ pthread_attr_setdetachstate(&xc->thread_attr, PTHREAD_CREATE_DETACHED);
+#endif
+ }
+ else
+ {
+ fclose(xc->handle);
+ if(xc->hier_handle) { fclose(xc->hier_handle); unlink(hf); }
+ tmpfile_close(&xc->geom_handle, &xc->geom_handle_nam);
+ tmpfile_close(&xc->valpos_handle, &xc->valpos_handle_nam);
+ tmpfile_close(&xc->curval_handle, &xc->curval_handle_nam);
+ tmpfile_close(&xc->tchn_handle, &xc->tchn_handle_nam);
+ free(xc->vchg_mem);
+ free(xc);
+ xc=NULL;
+ }
+
+ free(hf);
+ }
+
+return(xc);
+}
+
+
+/*
+ * generation and writing out of value change data sections
+ */
+static void fstWriterEmitSectionHeader(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+if(xc)
+ {
+ unsigned long destlen;
+ unsigned char *dmem;
+ int rc;
+
+ destlen = xc->maxvalpos;
+ dmem = malloc(compressBound(destlen));
+ rc = compress2(dmem, &destlen, xc->curval_mem, xc->maxvalpos, 4); /* was 9...which caused performance drag on traces with many signals */
+
+ fputc(FST_BL_SKIP, xc->handle); /* temporarily tag the section, use FST_BL_VCDATA on finalize */
+ xc->section_start = ftello(xc->handle);
+#ifdef FST_WRITER_PARALLEL
+ if(xc->xc_parent) xc->xc_parent->section_start = xc->section_start;
+#endif
+ xc->section_header_only = 1; /* indicates truncate might be needed */
+ fstWriterUint64(xc->handle, 0); /* placeholder = section length */
+ fstWriterUint64(xc->handle, xc->is_initial_time ? xc->firsttime : xc->curtime); /* begin time of section */
+ fstWriterUint64(xc->handle, xc->curtime); /* end time of section (placeholder) */
+ fstWriterUint64(xc->handle, 0); /* placeholder = amount of buffer memory required in reader for full vc traversal */
+ fstWriterVarint(xc->handle, xc->maxvalpos); /* maxvalpos = length of uncompressed data */
+
+ if((rc == Z_OK) && (destlen < xc->maxvalpos))
+ {
+ fstWriterVarint(xc->handle, destlen); /* length of compressed data */
+ }
+ else
+ {
+ fstWriterVarint(xc->handle, xc->maxvalpos); /* length of (unable to be) compressed data */
+ }
+ fstWriterVarint(xc->handle, xc->maxhandle); /* max handle associated with this data (in case of dynamic facility adds) */
+
+ if((rc == Z_OK) && (destlen < xc->maxvalpos))
+ {
+ fstFwrite(dmem, destlen, 1, xc->handle);
+ }
+ else /* comparison between compressed / decompressed len tells if compressed */
+ {
+ fstFwrite(xc->curval_mem, xc->maxvalpos, 1, xc->handle);
+ }
+
+ free(dmem);
+ }
+}
+
+
+/*
+ * only to be called directly by fst code...otherwise must
+ * be synced up with time changes
+ */
+#ifdef FST_WRITER_PARALLEL
+static void fstWriterFlushContextPrivate2(void *ctx)
+#else
+static void fstWriterFlushContextPrivate(void *ctx)
+#endif
+{
+#ifdef FST_DEBUG
+int cnt = 0;
+#endif
+unsigned int i;
+unsigned char *vchg_mem;
+FILE *f;
+off_t fpos, indxpos, endpos;
+uint32_t prevpos;
+int zerocnt;
+unsigned char *scratchpad;
+unsigned char *scratchpnt;
+unsigned char *tmem;
+off_t tlen;
+off_t unc_memreq = 0; /* for reader */
+unsigned char *packmem;
+unsigned int packmemlen;
+uint32_t *vm4ip;
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+#ifdef FST_WRITER_PARALLEL
+struct fstWriterContext *xc2 = xc->xc_parent;
+#else
+struct fstWriterContext *xc2 = xc;
+#endif
+
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+Pvoid_t PJHSArray = (Pvoid_t) NULL;
+#ifndef _WAVE_HAVE_JUDY
+uint32_t hashmask = xc->maxhandle;
+hashmask |= hashmask >> 1;
+hashmask |= hashmask >> 2;
+hashmask |= hashmask >> 4;
+hashmask |= hashmask >> 8;
+hashmask |= hashmask >> 16;
+#endif
+#endif
+
+if((xc->vchg_siz <= 1)||(xc->already_in_flush)) return;
+xc->already_in_flush = 1; /* should really do this with a semaphore */
+
+xc->section_header_only = 0;
+scratchpad = malloc(xc->vchg_siz);
+
+vchg_mem = xc->vchg_mem;
+
+f = xc->handle;
+fstWriterVarint(f, xc->maxhandle); /* emit current number of handles */
+fputc(xc->fourpack ? '4' : (xc->fastpack ? 'F' : 'Z'), f);
+fpos = 1;
+
+packmemlen = 1024; /* maintain a running "longest" allocation to */
+packmem = malloc(packmemlen); /* prevent continual malloc...free every loop iter */
+
+for(i=0;i<xc->maxhandle;i++)
+ {
+ vm4ip = &(xc->valpos_mem[4*i]);
+
+ if(vm4ip[2])
+ {
+ uint32_t offs = vm4ip[2];
+ uint32_t next_offs;
+ unsigned int wrlen;
+
+ vm4ip[2] = fpos;
+
+ scratchpnt = scratchpad + xc->vchg_siz; /* build this buffer backwards */
+ if(vm4ip[1] <= 1)
+ {
+ if(vm4ip[1] == 1)
+ {
+ wrlen = fstGetVarint32Length(vchg_mem + offs + 4); /* used to advance and determine wrlen */
+#ifndef FST_REMOVE_DUPLICATE_VC
+ xc->curval_mem[vm4ip[0]] = vchg_mem[offs + 4 + wrlen]; /* checkpoint variable */
+#endif
+ while(offs)
+ {
+ unsigned char val;
+ uint32_t time_delta, rcv;
+ next_offs = fstGetUint32(vchg_mem + offs);
+ offs += 4;
+
+ time_delta = fstGetVarint32(vchg_mem + offs, (int *)&wrlen);
+ val = vchg_mem[offs+wrlen];
+ offs = next_offs;
+
+ switch(val)
+ {
+ case '0':
+ case '1': rcv = ((val&1)<<1) | (time_delta<<2);
+ break; /* pack more delta bits in for 0/1 vchs */
+
+ case 'x': case 'X': rcv = FST_RCV_X | (time_delta<<4); break;
+ case 'z': case 'Z': rcv = FST_RCV_Z | (time_delta<<4); break;
+ case 'h': case 'H': rcv = FST_RCV_H | (time_delta<<4); break;
+ case 'u': case 'U': rcv = FST_RCV_U | (time_delta<<4); break;
+ case 'w': case 'W': rcv = FST_RCV_W | (time_delta<<4); break;
+ case 'l': case 'L': rcv = FST_RCV_L | (time_delta<<4); break;
+ default: rcv = FST_RCV_D | (time_delta<<4); break;
+ }
+
+ scratchpnt = fstCopyVarint32ToLeft(scratchpnt, rcv);
+ }
+ }
+ else
+ {
+ /* variable length */
+ /* fstGetUint32 (next_offs) + fstGetVarint32 (time_delta) + fstGetVarint32 (len) + payload */
+ unsigned char *pnt;
+ uint32_t record_len;
+ uint32_t time_delta;
+
+ while(offs)
+ {
+ next_offs = fstGetUint32(vchg_mem + offs);
+ offs += 4;
+ pnt = vchg_mem + offs;
+ offs = next_offs;
+ time_delta = fstGetVarint32(pnt, (int *)&wrlen);
+ pnt += wrlen;
+ record_len = fstGetVarint32(pnt, (int *)&wrlen);
+ pnt += wrlen;
+
+ scratchpnt -= record_len;
+ memcpy(scratchpnt, pnt, record_len);
+
+ scratchpnt = fstCopyVarint32ToLeft(scratchpnt, record_len);
+ scratchpnt = fstCopyVarint32ToLeft(scratchpnt, (time_delta << 1)); /* reserve | 1 case for future expansion */
+ }
+ }
+ }
+ else
+ {
+ wrlen = fstGetVarint32Length(vchg_mem + offs + 4); /* used to advance and determine wrlen */
+#ifndef FST_REMOVE_DUPLICATE_VC
+ memcpy(xc->curval_mem + vm4ip[0], vchg_mem + offs + 4 + wrlen, vm4ip[1]); /* checkpoint variable */
+#endif
+ while(offs)
+ {
+ unsigned int idx;
+ char is_binary = 1;
+ unsigned char *pnt;
+ uint32_t time_delta;
+
+ next_offs = fstGetUint32(vchg_mem + offs);
+ offs += 4;
+
+ time_delta = fstGetVarint32(vchg_mem + offs, (int *)&wrlen);
+
+ pnt = vchg_mem+offs+wrlen;
+ offs = next_offs;
+
+ for(idx=0;idx<vm4ip[1];idx++)
+ {
+ if((pnt[idx] == '0') || (pnt[idx] == '1'))
+ {
+ continue;
+ }
+ else
+ {
+ is_binary = 0;
+ break;
+ }
+ }
+
+ if(is_binary)
+ {
+ unsigned char acc = 0;
+ /* new algorithm */
+ idx = ((vm4ip[1]+7) & ~7);
+ switch(vm4ip[1] & 7)
+ {
+ case 0: do { acc = (pnt[idx+7-8] & 1) << 0;
+ case 7: acc |= (pnt[idx+6-8] & 1) << 1;
+ case 6: acc |= (pnt[idx+5-8] & 1) << 2;
+ case 5: acc |= (pnt[idx+4-8] & 1) << 3;
+ case 4: acc |= (pnt[idx+3-8] & 1) << 4;
+ case 3: acc |= (pnt[idx+2-8] & 1) << 5;
+ case 2: acc |= (pnt[idx+1-8] & 1) << 6;
+ case 1: acc |= (pnt[idx+0-8] & 1) << 7;
+ *(--scratchpnt) = acc;
+ idx -= 8;
+ } while(idx);
+ }
+
+ scratchpnt = fstCopyVarint32ToLeft(scratchpnt, (time_delta << 1));
+ }
+ else
+ {
+ scratchpnt -= vm4ip[1];
+ memcpy(scratchpnt, pnt, vm4ip[1]);
+
+ scratchpnt = fstCopyVarint32ToLeft(scratchpnt, (time_delta << 1) | 1);
+ }
+ }
+ }
+
+ wrlen = scratchpad + xc->vchg_siz - scratchpnt;
+ unc_memreq += wrlen;
+ if(wrlen > 32)
+ {
+ unsigned long destlen = wrlen;
+ unsigned char *dmem;
+ unsigned int rc;
+
+ if(!xc->fastpack)
+ {
+ if(wrlen <= packmemlen)
+ {
+ dmem = packmem;
+ }
+ else
+ {
+ free(packmem);
+ dmem = packmem = malloc(compressBound(packmemlen = wrlen));
+ }
+
+ rc = compress2(dmem, &destlen, scratchpnt, wrlen, 4);
+ if(rc == Z_OK)
+ {
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ PPvoid_t pv = JudyHSIns(&PJHSArray, dmem, destlen, NULL);
+ if(*pv)
+ {
+ uint32_t pvi = (long)(*pv);
+ vm4ip[2] = -pvi;
+ }
+ else
+ {
+ *pv = (void *)(long)(i+1);
+#endif
+ fpos += fstWriterVarint(f, wrlen);
+ fpos += destlen;
+ fstFwrite(dmem, destlen, 1, f);
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ }
+#endif
+ }
+ else
+ {
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ PPvoid_t pv = JudyHSIns(&PJHSArray, scratchpnt, wrlen, NULL);
+ if(*pv)
+ {
+ uint32_t pvi = (long)(*pv);
+ vm4ip[2] = -pvi;
+ }
+ else
+ {
+ *pv = (void *)(long)(i+1);
+#endif
+ fpos += fstWriterVarint(f, 0);
+ fpos += wrlen;
+ fstFwrite(scratchpnt, wrlen, 1, f);
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ }
+#endif
+ }
+ }
+ else
+ {
+ /* this is extremely conservative: fastlz needs +5% for worst case, lz4 needs siz+(siz/255)+16 */
+ if(((wrlen * 2) + 2) <= packmemlen)
+ {
+ dmem = packmem;
+ }
+ else
+ {
+ free(packmem);
+ dmem = packmem = malloc(packmemlen = (wrlen * 2) + 2);
+ }
+
+ rc = (xc->fourpack) ? LZ4_compress((char *)scratchpnt, (char *)dmem, wrlen) : fastlz_compress(scratchpnt, wrlen, dmem);
+ if(rc < destlen)
+ {
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ PPvoid_t pv = JudyHSIns(&PJHSArray, dmem, rc, NULL);
+ if(*pv)
+ {
+ uint32_t pvi = (long)(*pv);
+ vm4ip[2] = -pvi;
+ }
+ else
+ {
+ *pv = (void *)(long)(i+1);
+#endif
+ fpos += fstWriterVarint(f, wrlen);
+ fpos += rc;
+ fstFwrite(dmem, rc, 1, f);
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ }
+#endif
+ }
+ else
+ {
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ PPvoid_t pv = JudyHSIns(&PJHSArray, scratchpnt, wrlen, NULL);
+ if(*pv)
+ {
+ uint32_t pvi = (long)(*pv);
+ vm4ip[2] = -pvi;
+ }
+ else
+ {
+ *pv = (void *)(long)(i+1);
+#endif
+ fpos += fstWriterVarint(f, 0);
+ fpos += wrlen;
+ fstFwrite(scratchpnt, wrlen, 1, f);
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ }
+#endif
+ }
+ }
+ }
+ else
+ {
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ PPvoid_t pv = JudyHSIns(&PJHSArray, scratchpnt, wrlen, NULL);
+ if(*pv)
+ {
+ uint32_t pvi = (long)(*pv);
+ vm4ip[2] = -pvi;
+ }
+ else
+ {
+ *pv = (void *)(long)(i+1);
+#endif
+ fpos += fstWriterVarint(f, 0);
+ fpos += wrlen;
+ fstFwrite(scratchpnt, wrlen, 1, f);
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+ }
+#endif
+ }
+
+ /* vm4ip[3] = 0; ...redundant with clearing below */
+#ifdef FST_DEBUG
+ cnt++;
+#endif
+ }
+ }
+
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+JudyHSFreeArray(&PJHSArray, NULL);
+#endif
+
+free(packmem); packmem = NULL; /* packmemlen = 0; */ /* scan-build */
+
+prevpos = 0; zerocnt = 0;
+free(scratchpad); scratchpad = NULL;
+
+indxpos = ftello(f);
+xc->secnum++;
+
+#ifndef FST_DYNAMIC_ALIAS2_DISABLE
+if(1)
+ {
+ uint32_t prev_alias = 0;
+
+ for(i=0;i<xc->maxhandle;i++)
+ {
+ vm4ip = &(xc->valpos_mem[4*i]);
+
+ if(vm4ip[2])
+ {
+ if(zerocnt)
+ {
+ fpos += fstWriterVarint(f, (zerocnt << 1));
+ zerocnt = 0;
+ }
+
+ if(vm4ip[2] & 0x80000000)
+ {
+ if(vm4ip[2] != prev_alias)
+ {
+ fpos += fstWriterSVarint(f, (((int64_t)((int32_t)(prev_alias = vm4ip[2]))) << 1) | 1);
+ }
+ else
+ {
+ fpos += fstWriterSVarint(f, (0 << 1) | 1);
+ }
+ }
+ else
+ {
+ fpos += fstWriterSVarint(f, ((vm4ip[2] - prevpos) << 1) | 1);
+ prevpos = vm4ip[2];
+ }
+ vm4ip[2] = 0;
+ vm4ip[3] = 0; /* clear out tchn idx */
+ }
+ else
+ {
+ zerocnt++;
+ }
+ }
+ }
+ else
+#endif
+ {
+ for(i=0;i<xc->maxhandle;i++)
+ {
+ vm4ip = &(xc->valpos_mem[4*i]);
+
+ if(vm4ip[2])
+ {
+ if(zerocnt)
+ {
+ fpos += fstWriterVarint(f, (zerocnt << 1));
+ zerocnt = 0;
+ }
+
+ if(vm4ip[2] & 0x80000000)
+ {
+ fpos += fstWriterVarint(f, 0); /* signal, note that using a *signed* varint would be more efficient than this byte escape! */
+ fpos += fstWriterVarint(f, (-(int32_t)vm4ip[2]));
+ }
+ else
+ {
+ fpos += fstWriterVarint(f, ((vm4ip[2] - prevpos) << 1) | 1);
+ prevpos = vm4ip[2];
+ }
+ vm4ip[2] = 0;
+ vm4ip[3] = 0; /* clear out tchn idx */
+ }
+ else
+ {
+ zerocnt++;
+ }
+ }
+ }
+
+if(zerocnt)
+ {
+ /* fpos += */ fstWriterVarint(f, (zerocnt << 1)); /* scan-build */
+ }
+#ifdef FST_DEBUG
+fprintf(stderr, "value chains: %d\n", cnt);
+#endif
+
+xc->vchg_mem[0] = '!';
+xc->vchg_siz = 1;
+
+endpos = ftello(xc->handle);
+fstWriterUint64(xc->handle, endpos-indxpos); /* write delta index position at very end of block */
+
+/*emit time changes for block */
+fflush(xc->tchn_handle);
+tlen = ftello(xc->tchn_handle);
+fstWriterFseeko(xc, xc->tchn_handle, 0, SEEK_SET);
+
+tmem = fstMmap(NULL, tlen, PROT_READ|PROT_WRITE, MAP_SHARED, fileno(xc->tchn_handle), 0);
+if(tmem)
+ {
+ unsigned long destlen = tlen;
+ unsigned char *dmem = malloc(compressBound(destlen));
+ int rc = compress2(dmem, &destlen, tmem, tlen, 9);
+
+ if((rc == Z_OK) && (((off_t)destlen) < tlen))
+ {
+ fstFwrite(dmem, destlen, 1, xc->handle);
+ }
+ else /* comparison between compressed / decompressed len tells if compressed */
+ {
+ fstFwrite(tmem, tlen, 1, xc->handle);
+ destlen = tlen;
+ }
+ free(dmem);
+ fstMunmap(tmem, tlen);
+ fstWriterUint64(xc->handle, tlen); /* uncompressed */
+ fstWriterUint64(xc->handle, destlen); /* compressed */
+ fstWriterUint64(xc->handle, xc->tchn_cnt); /* number of time items */
+ }
+
+xc->tchn_cnt = xc->tchn_idx = 0;
+fstWriterFseeko(xc, xc->tchn_handle, 0, SEEK_SET);
+fstFtruncate(fileno(xc->tchn_handle), 0);
+
+/* write block trailer */
+endpos = ftello(xc->handle);
+fstWriterFseeko(xc, xc->handle, xc->section_start, SEEK_SET);
+fstWriterUint64(xc->handle, endpos - xc->section_start); /* write block length */
+fstWriterFseeko(xc, xc->handle, 8, SEEK_CUR); /* skip begin time */
+fstWriterUint64(xc->handle, xc->curtime); /* write end time for section */
+fstWriterUint64(xc->handle, unc_memreq); /* amount of buffer memory required in reader for full traversal */
+fflush(xc->handle);
+
+fstWriterFseeko(xc, xc->handle, xc->section_start-1, SEEK_SET); /* write out FST_BL_VCDATA over FST_BL_SKIP */
+
+#ifndef FST_DYNAMIC_ALIAS_DISABLE
+#ifndef FST_DYNAMIC_ALIAS2_DISABLE
+fputc(FST_BL_VCDATA_DYN_ALIAS2, xc->handle);
+#else
+fputc(FST_BL_VCDATA_DYN_ALIAS, xc->handle);
+#endif
+#else
+fputc(FST_BL_VCDATA, xc->handle);
+#endif
+
+fflush(xc->handle);
+
+fstWriterFseeko(xc, xc->handle, endpos, SEEK_SET); /* seek to end of file */
+
+xc2->section_header_truncpos = endpos; /* cache in case of need to truncate */
+if(xc->dump_size_limit)
+ {
+ if(endpos >= ((off_t)xc->dump_size_limit))
+ {
+ xc2->skip_writing_section_hdr = 1;
+ xc2->size_limit_locked = 1;
+ xc2->is_initial_time = 1; /* to trick emit value and emit time change */
+#ifdef FST_DEBUG
+ fprintf(stderr, "<< dump file size limit reached, stopping dumping >>\n");
+#endif
+ }
+ }
+
+if(!xc2->skip_writing_section_hdr)
+ {
+ fstWriterEmitSectionHeader(xc); /* emit next section header */
+ }
+fflush(xc->handle);
+
+xc->already_in_flush = 0;
+}
+
+
+#ifdef FST_WRITER_PARALLEL
+static void *fstWriterFlushContextPrivate1(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+fstWriterFlushContextPrivate2(xc);
+
+pthread_mutex_unlock(&(xc->xc_parent->mutex));
+
+#ifdef FST_REMOVE_DUPLICATE_VC
+free(xc->curval_mem);
+#endif
+free(xc->valpos_mem);
+free(xc->vchg_mem);
+tmpfile_close(&xc->tchn_handle, &xc->tchn_handle_nam);
+free(xc);
+
+return(NULL);
+}
+
+
+static void fstWriterFlushContextPrivate(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+if(xc->parallel_enabled)
+ {
+ struct fstWriterContext *xc2 = malloc(sizeof(struct fstWriterContext));
+ unsigned int i;
+
+ pthread_mutex_lock(&xc->mutex);
+ pthread_mutex_unlock(&xc->mutex);
+
+ xc->xc_parent = xc;
+ memcpy(xc2, xc, sizeof(struct fstWriterContext));
+
+ xc2->valpos_mem = malloc(xc->maxhandle * 4 * sizeof(uint32_t));
+ memcpy(xc2->valpos_mem, xc->valpos_mem, xc->maxhandle * 4 * sizeof(uint32_t));
+
+ /* curval mem is updated in the thread */
+#ifdef FST_REMOVE_DUPLICATE_VC
+ xc2->curval_mem = malloc(xc->maxvalpos);
+ memcpy(xc2->curval_mem, xc->curval_mem, xc->maxvalpos);
+#endif
+
+ xc->vchg_mem = malloc(xc->vchg_alloc_siz);
+ xc->vchg_mem[0] = '!';
+ xc->vchg_siz = 1;
+
+ for(i=0;i<xc->maxhandle;i++)
+ {
+ uint32_t *vm4ip = &(xc->valpos_mem[4*i]);
+ vm4ip[2] = 0; /* zero out offset val */
+ vm4ip[3] = 0; /* zero out last time change val */
+ }
+
+ xc->tchn_cnt = xc->tchn_idx = 0;
+ xc->tchn_handle = tmpfile_open(&xc->tchn_handle_nam); /* child thread will deallocate file/name */
+ fstWriterFseeko(xc, xc->tchn_handle, 0, SEEK_SET);
+ fstFtruncate(fileno(xc->tchn_handle), 0);
+
+ xc->section_header_only = 0;
+ xc->secnum++;
+
+ pthread_mutex_lock(&xc->mutex);
+
+ pthread_create(&xc->thread, &xc->thread_attr, fstWriterFlushContextPrivate1, xc2);
+ }
+ else
+ {
+ if(xc->parallel_was_enabled) /* conservatively block */
+ {
+ pthread_mutex_lock(&xc->mutex);
+ pthread_mutex_unlock(&xc->mutex);
+ }
+
+ xc->xc_parent = xc;
+ fstWriterFlushContextPrivate2(xc);
+ }
+}
+#endif
+
+
+/*
+ * queues up a flush context operation
+ */
+void fstWriterFlushContext(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ if(xc->tchn_idx > 1)
+ {
+ xc->flush_context_pending = 1;
+ }
+ }
+}
+
+
+/*
+ * close out FST file
+ */
+void fstWriterClose(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+#ifdef FST_WRITER_PARALLEL
+if(xc)
+ {
+ pthread_mutex_lock(&xc->mutex);
+ pthread_mutex_unlock(&xc->mutex);
+ }
+#endif
+
+if(xc && !xc->already_in_close && !xc->already_in_flush)
+ {
+ unsigned char *tmem;
+ off_t fixup_offs, tlen, hlen;
+
+ xc->already_in_close = 1; /* never need to zero this out as it is freed at bottom */
+
+ if(xc->section_header_only && xc->section_header_truncpos && (xc->vchg_siz <= 1) && (!xc->is_initial_time))
+ {
+ fstFtruncate(fileno(xc->handle), xc->section_header_truncpos);
+ fstWriterFseeko(xc, xc->handle, xc->section_header_truncpos, SEEK_SET);
+ xc->section_header_only = 0;
+ }
+ else
+ {
+ xc->skip_writing_section_hdr = 1;
+ if(!xc->size_limit_locked)
+ {
+ if(xc->is_initial_time) /* simulation time never advanced so mock up the changes as time zero ones */
+ {
+ fstHandle dupe_idx;
+
+ fstWriterEmitTimeChange(xc, 0); /* emit some time change just to have one */
+ for(dupe_idx = 0; dupe_idx < xc->maxhandle; dupe_idx++) /* now clone the values */
+ {
+ fstWriterEmitValueChange(xc, dupe_idx+1, xc->curval_mem + xc->valpos_mem[4*dupe_idx]);
+ }
+ }
+ fstWriterFlushContextPrivate(xc);
+#ifdef FST_WRITER_PARALLEL
+ pthread_mutex_lock(&xc->mutex);
+ pthread_mutex_unlock(&xc->mutex);
+#endif
+ }
+ }
+ fstDestroyMmaps(xc, 1);
+
+ /* write out geom section */
+ fflush(xc->geom_handle);
+ tlen = ftello(xc->geom_handle);
+ tmem = fstMmap(NULL, tlen, PROT_READ|PROT_WRITE, MAP_SHARED, fileno(xc->geom_handle), 0);
+ if(tmem)
+ {
+ unsigned long destlen = tlen;
+ unsigned char *dmem = malloc(compressBound(destlen));
+ int rc = compress2(dmem, &destlen, tmem, tlen, 9);
+
+ if((rc != Z_OK) || (((off_t)destlen) > tlen))
+ {
+ destlen = tlen;
+ }
+
+ fixup_offs = ftello(xc->handle);
+ fputc(FST_BL_SKIP, xc->handle); /* temporary tag */
+ fstWriterUint64(xc->handle, destlen + 24); /* section length */
+ fstWriterUint64(xc->handle, tlen); /* uncompressed */
+ /* compressed len is section length - 24 */
+ fstWriterUint64(xc->handle, xc->maxhandle); /* maxhandle */
+ fstFwrite((((off_t)destlen) != tlen) ? dmem : tmem, destlen, 1, xc->handle);
+ fflush(xc->handle);
+
+ fstWriterFseeko(xc, xc->handle, fixup_offs, SEEK_SET);
+ fputc(FST_BL_GEOM, xc->handle); /* actual tag */
+
+ fstWriterFseeko(xc, xc->handle, 0, SEEK_END); /* move file pointer to end for any section adds */
+ fflush(xc->handle);
+
+ free(dmem);
+ fstMunmap(tmem, tlen);
+ }
+
+ if(xc->num_blackouts)
+ {
+ uint64_t cur_bl = 0;
+ off_t bpos, eos;
+ uint32_t i;
+
+ fixup_offs = ftello(xc->handle);
+ fputc(FST_BL_SKIP, xc->handle); /* temporary tag */
+ bpos = fixup_offs + 1;
+ fstWriterUint64(xc->handle, 0); /* section length */
+ fstWriterVarint(xc->handle, xc->num_blackouts);
+
+ for(i=0;i<xc->num_blackouts;i++)
+ {
+ fputc(xc->blackout_head->active, xc->handle);
+ fstWriterVarint(xc->handle, xc->blackout_head->tim - cur_bl);
+ cur_bl = xc->blackout_head->tim;
+ xc->blackout_curr = xc->blackout_head->next;
+ free(xc->blackout_head);
+ xc->blackout_head = xc->blackout_curr;
+ }
+
+ eos = ftello(xc->handle);
+ fstWriterFseeko(xc, xc->handle, bpos, SEEK_SET);
+ fstWriterUint64(xc->handle, eos - bpos);
+ fflush(xc->handle);
+
+ fstWriterFseeko(xc, xc->handle, fixup_offs, SEEK_SET);
+ fputc(FST_BL_BLACKOUT, xc->handle); /* actual tag */
+
+ fstWriterFseeko(xc, xc->handle, 0, SEEK_END); /* move file pointer to end for any section adds */
+ fflush(xc->handle);
+ }
+
+ if(xc->compress_hier)
+ {
+ off_t hl, eos;
+ gzFile zhandle;
+ int zfd;
+ int fourpack_duo = 0;
+#ifndef __MINGW32__
+ char *fnam = malloc(strlen(xc->filename) + 5 + 1);
+#endif
+
+ fixup_offs = ftello(xc->handle);
+ fputc(FST_BL_SKIP, xc->handle); /* temporary tag */
+ hlen = ftello(xc->handle);
+ fstWriterUint64(xc->handle, 0); /* section length */
+ fstWriterUint64(xc->handle, xc->hier_file_len); /* uncompressed length */
+
+ if(!xc->fourpack)
+ {
+ unsigned char *mem = malloc(FST_GZIO_LEN);
+ zfd = dup(fileno(xc->handle));
+ fflush(xc->handle);
+ zhandle = gzdopen(zfd, "wb4");
+ if(zhandle)
+ {
+ fstWriterFseeko(xc, xc->hier_handle, 0, SEEK_SET);
+ for(hl = 0; hl < xc->hier_file_len; hl += FST_GZIO_LEN)
+ {
+ unsigned len = ((xc->hier_file_len - hl) > FST_GZIO_LEN) ? FST_GZIO_LEN : (xc->hier_file_len - hl);
+ fstFread(mem, len, 1, xc->hier_handle);
+ gzwrite(zhandle, mem, len);
+ }
+ gzclose(zhandle);
+ }
+ else
+ {
+ close(zfd);
+ }
+ free(mem);
+ }
+ else
+ {
+ int lz4_maxlen;
+ unsigned char *mem;
+ unsigned char *hmem;
+ int packed_len;
+
+ fflush(xc->handle);
+
+ lz4_maxlen = LZ4_compressBound(xc->hier_file_len);
+ mem = malloc(lz4_maxlen);
+ hmem = fstMmap(NULL, xc->hier_file_len, PROT_READ|PROT_WRITE, MAP_SHARED, fileno(xc->hier_handle), 0);
+ packed_len = LZ4_compress((char *)hmem, (char *)mem, xc->hier_file_len);
+ fstMunmap(hmem, xc->hier_file_len);
+
+ fourpack_duo = (!xc->repack_on_close) && (xc->hier_file_len > FST_HDR_FOURPACK_DUO_SIZE); /* double pack when hierarchy is large */
+
+ if(fourpack_duo) /* double packing with LZ4 is faster than gzip */
+ {
+ unsigned char *mem_duo;
+ int lz4_maxlen_duo;
+ int packed_len_duo;
+
+ lz4_maxlen_duo = LZ4_compressBound(packed_len);
+ mem_duo = malloc(lz4_maxlen_duo);
+ packed_len_duo = LZ4_compress((char *)mem, (char *)mem_duo, packed_len);
+
+ fstWriterVarint(xc->handle, packed_len); /* 1st round compressed length */
+ fstFwrite(mem_duo, packed_len_duo, 1, xc->handle);
+ free(mem_duo);
+ }
+ else
+ {
+ fstFwrite(mem, packed_len, 1, xc->handle);
+ }
+
+ free(mem);
+ }
+
+ fstWriterFseeko(xc, xc->handle, 0, SEEK_END);
+ eos = ftello(xc->handle);
+ fstWriterFseeko(xc, xc->handle, hlen, SEEK_SET);
+ fstWriterUint64(xc->handle, eos - hlen);
+ fflush(xc->handle);
+
+ fstWriterFseeko(xc, xc->handle, fixup_offs, SEEK_SET);
+ fputc(xc->fourpack ?
+ ( fourpack_duo ? FST_BL_HIER_LZ4DUO : FST_BL_HIER_LZ4) :
+ FST_BL_HIER, xc->handle); /* actual tag now also == compression type */
+
+ fstWriterFseeko(xc, xc->handle, 0, SEEK_END); /* move file pointer to end for any section adds */
+ fflush(xc->handle);
+
+#ifndef __MINGW32__
+ sprintf(fnam, "%s.hier", xc->filename);
+ unlink(fnam);
+ free(fnam);
+#endif
+ }
+
+ /* finalize out header */
+ fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_START_TIME, SEEK_SET);
+ fstWriterUint64(xc->handle, xc->firsttime);
+ fstWriterUint64(xc->handle, xc->curtime);
+ fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_NUM_SCOPES, SEEK_SET);
+ fstWriterUint64(xc->handle, xc->numscopes);
+ fstWriterUint64(xc->handle, xc->numsigs);
+ fstWriterUint64(xc->handle, xc->maxhandle);
+ fstWriterUint64(xc->handle, xc->secnum);
+ fflush(xc->handle);
+
+ tmpfile_close(&xc->tchn_handle, &xc->tchn_handle_nam);
+ free(xc->vchg_mem); xc->vchg_mem = NULL;
+ tmpfile_close(&xc->curval_handle, &xc->curval_handle_nam);
+ tmpfile_close(&xc->valpos_handle, &xc->valpos_handle_nam);
+ tmpfile_close(&xc->geom_handle, &xc->geom_handle_nam);
+ if(xc->hier_handle) { fclose(xc->hier_handle); xc->hier_handle = NULL; }
+ if(xc->handle)
+ {
+ if(xc->repack_on_close)
+ {
+ FILE *fp;
+ off_t offpnt, uclen;
+ int flen = strlen(xc->filename);
+ char *hf = calloc(1, flen + 5);
+
+ strcpy(hf, xc->filename);
+ strcpy(hf+flen, ".pak");
+ fp = fopen(hf, "wb");
+
+ if(fp)
+ {
+ void *dsth;
+ int zfd;
+ char gz_membuf[FST_GZIO_LEN];
+
+ fstWriterFseeko(xc, xc->handle, 0, SEEK_END);
+ uclen = ftello(xc->handle);
+
+ fputc(FST_BL_ZWRAPPER, fp);
+ fstWriterUint64(fp, 0);
+ fstWriterUint64(fp, uclen);
+ fflush(fp);
+
+ fstWriterFseeko(xc, xc->handle, 0, SEEK_SET);
+ zfd = dup(fileno(fp));
+ dsth = gzdopen(zfd, "wb4");
+ if(dsth)
+ {
+ for(offpnt = 0; offpnt < uclen; offpnt += FST_GZIO_LEN)
+ {
+ size_t this_len = ((uclen - offpnt) > FST_GZIO_LEN) ? FST_GZIO_LEN : (uclen - offpnt);
+ fstFread(gz_membuf, this_len, 1, xc->handle);
+ gzwrite(dsth, gz_membuf, this_len);
+ }
+ gzclose(dsth);
+ }
+ else
+ {
+ close(zfd);
+ }
+ fstWriterFseeko(xc, fp, 0, SEEK_END);
+ offpnt = ftello(fp);
+ fstWriterFseeko(xc, fp, 1, SEEK_SET);
+ fstWriterUint64(fp, offpnt - 1);
+ fclose(fp);
+ fclose(xc->handle); xc->handle = NULL;
+
+ unlink(xc->filename);
+ rename(hf, xc->filename);
+ }
+ else
+ {
+ xc->repack_on_close = 0;
+ fclose(xc->handle); xc->handle = NULL;
+ }
+
+ free(hf);
+ }
+ else
+ {
+ fclose(xc->handle); xc->handle = NULL;
+ }
+ }
+
+#ifdef __MINGW32__
+ {
+ int flen = strlen(xc->filename);
+ char *hf = calloc(1, flen + 6);
+ strcpy(hf, xc->filename);
+
+ if(xc->compress_hier)
+ {
+ strcpy(hf + flen, ".hier");
+ unlink(hf); /* no longer needed as a section now exists for this */
+ }
+
+ free(hf);
+ }
+#endif
+
+#ifdef FST_WRITER_PARALLEL
+ pthread_mutex_destroy(&xc->mutex);
+ pthread_attr_destroy(&xc->thread_attr);
+#endif
+
+ if(xc->path_array)
+ {
+#ifndef _WAVE_HAVE_JUDY
+ const uint32_t hashmask = FST_PATH_HASHMASK;
+#endif
+ JudyHSFreeArray(&(xc->path_array), NULL);
+ }
+
+ free(xc->filename); xc->filename = NULL;
+ free(xc);
+ }
+}
+
+
+/*
+ * functions to set miscellaneous header/block information
+ */
+void fstWriterSetDate(void *ctx, const char *dat)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ char s[FST_HDR_DATE_SIZE];
+ off_t fpos = ftello(xc->handle);
+ int len = strlen(dat);
+
+ fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_DATE, SEEK_SET);
+ memset(s, 0, FST_HDR_DATE_SIZE);
+ memcpy(s, dat, (len < FST_HDR_DATE_SIZE) ? len : FST_HDR_DATE_SIZE);
+ fstFwrite(s, FST_HDR_DATE_SIZE, 1, xc->handle);
+ fflush(xc->handle);
+ fstWriterFseeko(xc, xc->handle, fpos, SEEK_SET);
+ }
+}
+
+
+void fstWriterSetVersion(void *ctx, const char *vers)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc && vers)
+ {
+ char s[FST_HDR_SIM_VERSION_SIZE];
+ off_t fpos = ftello(xc->handle);
+ int len = strlen(vers);
+
+ fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_SIM_VERSION, SEEK_SET);
+ memset(s, 0, FST_HDR_SIM_VERSION_SIZE);
+ memcpy(s, vers, (len < FST_HDR_SIM_VERSION_SIZE) ? len : FST_HDR_SIM_VERSION_SIZE);
+ fstFwrite(s, FST_HDR_SIM_VERSION_SIZE, 1, xc->handle);
+ fflush(xc->handle);
+ fstWriterFseeko(xc, xc->handle, fpos, SEEK_SET);
+ }
+}
+
+
+void fstWriterSetFileType(void *ctx, enum fstFileType filetype)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ if(/*(filetype >= FST_FT_MIN) &&*/ (filetype <= FST_FT_MAX))
+ {
+ off_t fpos = ftello(xc->handle);
+
+ xc->filetype = filetype;
+
+ fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_FILETYPE, SEEK_SET);
+ fputc(xc->filetype, xc->handle);
+ fflush(xc->handle);
+ fstWriterFseeko(xc, xc->handle, fpos, SEEK_SET);
+ }
+ }
+}
+
+
+static void fstWriterSetAttrDoubleArgGeneric(void *ctx, int typ, uint64_t arg1, uint64_t arg2)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ unsigned char buf[11]; /* ceil(64/7) = 10 + null term */
+ unsigned char *pnt = fstCopyVarint64ToRight(buf, arg1);
+ if(arg1)
+ {
+ *pnt = 0; /* this converts any *nonzero* arg1 when made a varint into a null-term string */
+ }
+
+ fstWriterSetAttrBegin(xc, FST_AT_MISC, typ, (char *)buf, arg2);
+ }
+}
+
+
+static void fstWriterSetAttrGeneric(void *ctx, const char *comm, int typ, uint64_t arg)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc && comm)
+ {
+ char *s = strdup(comm);
+ char *sf = s;
+
+ while(*s)
+ {
+ if((*s == '\n') || (*s == '\r')) *s = ' ';
+ s++;
+ }
+
+ fstWriterSetAttrBegin(xc, FST_AT_MISC, typ, sf, arg);
+ free(sf);
+ }
+}
+
+
+static void fstWriterSetSourceStem_2(void *ctx, const char *path, unsigned int line, unsigned int use_realpath, int typ)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+if(xc && path && path[0])
+ {
+ uint64_t sidx = 0;
+ int slen = strlen(path);
+#ifndef _WAVE_HAVE_JUDY
+ const uint32_t hashmask = FST_PATH_HASHMASK;
+ const unsigned char *path2 = (const unsigned char *)path;
+#else
+ char *path2 = alloca(slen + 1); /* judy lacks const qualifier in its JudyHSIns definition */
+ strcpy(path2, path);
+#endif
+
+ PPvoid_t pv = JudyHSIns(&(xc->path_array), path2, slen, NULL);
+ if(*pv)
+ {
+ sidx = (long)(*pv);
+ }
+ else
+ {
+ char *rp = NULL;
+
+ sidx = ++xc->path_array_count;
+ *pv = (void *)(long)(xc->path_array_count);
+
+ if(use_realpath)
+ {
+ rp = fstRealpath(
+#ifndef _WAVE_HAVE_JUDY
+ (const char *)
+#endif
+ path2, NULL);
+ }
+
+ fstWriterSetAttrGeneric(xc, rp ? rp :
+#ifndef _WAVE_HAVE_JUDY
+ (const char *)
+#endif
+ path2, FST_MT_PATHNAME, sidx);
+
+ if(rp)
+ {
+ free(rp);
+ }
+ }
+
+ fstWriterSetAttrDoubleArgGeneric(xc, typ, sidx, line);
+ }
+}
+
+
+void fstWriterSetSourceStem(void *ctx, const char *path, unsigned int line, unsigned int use_realpath)
+{
+fstWriterSetSourceStem_2(ctx, path, line, use_realpath, FST_MT_SOURCESTEM);
+}
+
+
+void fstWriterSetSourceInstantiationStem(void *ctx, const char *path, unsigned int line, unsigned int use_realpath)
+{
+fstWriterSetSourceStem_2(ctx, path, line, use_realpath, FST_MT_SOURCEISTEM);
+}
+
+
+void fstWriterSetComment(void *ctx, const char *comm)
+{
+fstWriterSetAttrGeneric(ctx, comm, FST_MT_COMMENT, 0);
+}
+
+
+void fstWriterSetEnvVar(void *ctx, const char *envvar)
+{
+fstWriterSetAttrGeneric(ctx, envvar, FST_MT_ENVVAR, 0);
+}
+
+
+void fstWriterSetTimescale(void *ctx, int ts)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ off_t fpos = ftello(xc->handle);
+ fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_TIMESCALE, SEEK_SET);
+ fputc(ts & 255, xc->handle);
+ fflush(xc->handle);
+ fstWriterFseeko(xc, xc->handle, fpos, SEEK_SET);
+ }
+}
+
+
+void fstWriterSetTimescaleFromString(void *ctx, const char *s)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc && s)
+ {
+ int mat = 0;
+ int seconds_exp = -9;
+ int tv = atoi(s);
+ const char *pnt = s;
+
+ while(*pnt)
+ {
+ switch(*pnt)
+ {
+ case 'm': seconds_exp = -3; mat = 1; break;
+ case 'u': seconds_exp = -6; mat = 1; break;
+ case 'n': seconds_exp = -9; mat = 1; break;
+ case 'p': seconds_exp = -12; mat = 1; break;
+ case 'f': seconds_exp = -15; mat = 1; break;
+ case 'a': seconds_exp = -18; mat = 1; break;
+ case 'z': seconds_exp = -21; mat = 1; break;
+ case 's': seconds_exp = 0; mat = 1; break;
+ default: break;
+ }
+
+ if(mat) break;
+ pnt++;
+ }
+
+ if(tv == 10)
+ {
+ seconds_exp++;
+ }
+ else
+ if(tv == 100)
+ {
+ seconds_exp+=2;
+ }
+
+ fstWriterSetTimescale(ctx, seconds_exp);
+ }
+}
+
+
+void fstWriterSetTimezero(void *ctx, int64_t tim)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ off_t fpos = ftello(xc->handle);
+ fstWriterFseeko(xc, xc->handle, FST_HDR_OFFS_TIMEZERO, SEEK_SET);
+ fstWriterUint64(xc->handle, (xc->timezero = tim));
+ fflush(xc->handle);
+ fstWriterFseeko(xc, xc->handle, fpos, SEEK_SET);
+ }
+}
+
+
+void fstWriterSetPackType(void *ctx, enum fstWriterPackType typ)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ xc->fastpack = (typ != FST_WR_PT_ZLIB);
+ xc->fourpack = (typ == FST_WR_PT_LZ4);
+ }
+}
+
+
+void fstWriterSetRepackOnClose(void *ctx, int enable)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ xc->repack_on_close = (enable != 0);
+ }
+}
+
+
+void fstWriterSetParallelMode(void *ctx, int enable)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ xc->parallel_was_enabled |= xc->parallel_enabled; /* make sticky */
+ xc->parallel_enabled = (enable != 0);
+#ifndef FST_WRITER_PARALLEL
+ if(xc->parallel_enabled)
+ {
+ fprintf(stderr, "ERROR: fstWriterSetParallelMode(), FST_WRITER_PARALLEL not enabled during compile, exiting.\n");
+ exit(255);
+ }
+#endif
+ }
+}
+
+
+void fstWriterSetDumpSizeLimit(void *ctx, uint64_t numbytes)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ xc->dump_size_limit = numbytes;
+ }
+}
+
+
+int fstWriterGetDumpSizeLimitReached(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ return(xc->size_limit_locked != 0);
+ }
+
+return(0);
+}
+
+
+int fstWriterGetFseekFailed(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+if(xc)
+ {
+ return(xc->fseek_failed != 0);
+ }
+
+return(0);
+}
+
+
+/*
+ * writer attr/scope/var creation:
+ * fstWriterCreateVar2() is used to dump VHDL or other languages, but the
+ * underlying variable needs to map to Verilog/SV via the proper fstVarType vt
+ */
+fstHandle fstWriterCreateVar2(void *ctx, enum fstVarType vt, enum fstVarDir vd,
+ uint32_t len, const char *nam, fstHandle aliasHandle,
+ const char *type, enum fstSupplementalVarType svt, enum fstSupplementalDataType sdt)
+{
+fstWriterSetAttrGeneric(ctx, type ? type : "", FST_MT_SUPVAR, (svt<<FST_SDT_SVT_SHIFT_COUNT) | (sdt & FST_SDT_ABS_MAX));
+return(fstWriterCreateVar(ctx, vt, vd, len, nam, aliasHandle));
+}
+
+
+fstHandle fstWriterCreateVar(void *ctx, enum fstVarType vt, enum fstVarDir vd,
+ uint32_t len, const char *nam, fstHandle aliasHandle)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+unsigned int i;
+int nlen, is_real;
+
+if(xc && nam)
+ {
+ if(xc->valpos_mem)
+ {
+ fstDestroyMmaps(xc, 0);
+ }
+
+ fputc(vt, xc->hier_handle);
+ fputc(vd, xc->hier_handle);
+ nlen = strlen(nam);
+ fstFwrite(nam, nlen, 1, xc->hier_handle);
+ fputc(0, xc->hier_handle);
+ xc->hier_file_len += (nlen+3);
+
+ if((vt == FST_VT_VCD_REAL) || (vt == FST_VT_VCD_REAL_PARAMETER) || (vt == FST_VT_VCD_REALTIME) || (vt == FST_VT_SV_SHORTREAL))
+ {
+ is_real = 1;
+ len = 8; /* recast number of bytes to that of what a double is */
+ }
+ else
+ {
+ is_real = 0;
+ if(vt == FST_VT_GEN_STRING)
+ {
+ len = 0;
+ }
+ }
+
+ xc->hier_file_len += fstWriterVarint(xc->hier_handle, len);
+
+ if(aliasHandle > xc->maxhandle) aliasHandle = 0;
+ xc->hier_file_len += fstWriterVarint(xc->hier_handle, aliasHandle);
+ xc->numsigs++;
+ if(xc->numsigs == xc->next_huge_break)
+ {
+ if(xc->fst_break_size < xc->fst_huge_break_size)
+ {
+ xc->next_huge_break += FST_ACTIVATE_HUGE_INC;
+ xc->fst_break_size += xc->fst_orig_break_size;
+ xc->fst_break_add_size += xc->fst_orig_break_add_size;
+
+ xc->vchg_alloc_siz = xc->fst_break_size + xc->fst_break_add_size;
+ if(xc->vchg_mem)
+ {
+ xc->vchg_mem = realloc(xc->vchg_mem, xc->vchg_alloc_siz);
+ }
+ }
+ }
+
+ if(!aliasHandle)
+ {
+ uint32_t zero = 0;
+
+ if(len)
+ {
+ fstWriterVarint(xc->geom_handle, !is_real ? len : 0); /* geom section encodes reals as zero byte */
+ }
+ else
+ {
+ fstWriterVarint(xc->geom_handle, 0xFFFFFFFF); /* geom section encodes zero len as 32b -1 */
+ }
+
+ fstFwrite(&xc->maxvalpos, sizeof(uint32_t), 1, xc->valpos_handle);
+ fstFwrite(&len, sizeof(uint32_t), 1, xc->valpos_handle);
+ fstFwrite(&zero, sizeof(uint32_t), 1, xc->valpos_handle);
+ fstFwrite(&zero, sizeof(uint32_t), 1, xc->valpos_handle);
+
+ if(!is_real)
+ {
+ for(i=0;i<len;i++)
+ {
+ fputc('x', xc->curval_handle);
+ }
+ }
+ else
+ {
+ fstFwrite(&xc->nan, 8, 1, xc->curval_handle); /* initialize doubles to NaN rather than x */
+ }
+
+ xc->maxvalpos+=len;
+ xc->maxhandle++;
+ return(xc->maxhandle);
+ }
+ else
+ {
+ return(aliasHandle);
+ }
+ }
+
+return(0);
+}
+
+
+void fstWriterSetScope(void *ctx, enum fstScopeType scopetype,
+ const char *scopename, const char *scopecomp)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+if(xc)
+ {
+ fputc(FST_ST_VCD_SCOPE, xc->hier_handle);
+ if(/*(scopetype < FST_ST_VCD_MODULE) ||*/ (scopetype > FST_ST_MAX)) { scopetype = FST_ST_VCD_MODULE; }
+ fputc(scopetype, xc->hier_handle);
+ fprintf(xc->hier_handle, "%s%c%s%c",
+ scopename ? scopename : "", 0,
+ scopecomp ? scopecomp : "", 0);
+
+ if(scopename)
+ {
+ xc->hier_file_len += strlen(scopename);
+ }
+ if(scopecomp)
+ {
+ xc->hier_file_len += strlen(scopecomp);
+ }
+
+ xc->hier_file_len += 4; /* FST_ST_VCD_SCOPE + scopetype + two string terminating zeros */
+ xc->numscopes++;
+ }
+}
+
+
+void fstWriterSetUpscope(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+if(xc)
+ {
+ fputc(FST_ST_VCD_UPSCOPE, xc->hier_handle);
+ xc->hier_file_len++;
+ }
+}
+
+
+void fstWriterSetAttrBegin(void *ctx, enum fstAttrType attrtype, int subtype,
+ const char *attrname, uint64_t arg)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+if(xc)
+ {
+ fputc(FST_ST_GEN_ATTRBEGIN, xc->hier_handle);
+ if(/*(attrtype < FST_AT_MISC) ||*/ (attrtype > FST_AT_MAX)) { attrtype = FST_AT_MISC; subtype = FST_MT_UNKNOWN; }
+ fputc(attrtype, xc->hier_handle);
+
+ switch(attrtype)
+ {
+ case FST_AT_ARRAY: if((subtype < FST_AR_NONE) || (subtype > FST_AR_MAX)) subtype = FST_AR_NONE; break;
+ case FST_AT_ENUM: if((subtype < FST_EV_SV_INTEGER) || (subtype > FST_EV_MAX)) subtype = FST_EV_SV_INTEGER; break;
+ case FST_AT_PACK: if((subtype < FST_PT_NONE) || (subtype > FST_PT_MAX)) subtype = FST_PT_NONE; break;
+
+ case FST_AT_MISC:
+ default: break;
+ }
+
+ fputc(subtype, xc->hier_handle);
+ fprintf(xc->hier_handle, "%s%c",
+ attrname ? attrname : "", 0);
+
+ if(attrname)
+ {
+ xc->hier_file_len += strlen(attrname);
+ }
+
+ xc->hier_file_len += 4; /* FST_ST_GEN_ATTRBEGIN + type + subtype + string terminating zero */
+ xc->hier_file_len += fstWriterVarint(xc->hier_handle, arg);
+ }
+}
+
+
+void fstWriterSetAttrEnd(void *ctx)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+if(xc)
+ {
+ fputc(FST_ST_GEN_ATTREND, xc->hier_handle);
+ xc->hier_file_len++;
+ }
+}
+
+
+/*
+ * value and time change emission
+ */
+void fstWriterEmitValueChange(void *ctx, fstHandle handle, const void *val)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+const unsigned char *buf = (const unsigned char *)val;
+uint32_t offs;
+int len;
+
+if((xc) && (handle <= xc->maxhandle))
+ {
+ uint32_t fpos;
+ uint32_t *vm4ip;
+
+ if(!xc->valpos_mem)
+ {
+ xc->vc_emitted = 1;
+ fstWriterCreateMmaps(xc);
+ }
+
+ handle--; /* move starting at 1 index to starting at 0 */
+ vm4ip = &(xc->valpos_mem[4*handle]);
+
+ len = vm4ip[1];
+ if(len) /* len of zero = variable length, use fstWriterEmitVariableLengthValueChange */
+ {
+ if(!xc->is_initial_time)
+ {
+ fpos = xc->vchg_siz;
+
+ if((fpos + len + 10) > xc->vchg_alloc_siz)
+ {
+ xc->vchg_alloc_siz += (xc->fst_break_add_size + len); /* +len added in the case of extremely long vectors and small break add sizes */
+ xc->vchg_mem = realloc(xc->vchg_mem, xc->vchg_alloc_siz);
+ if(!xc->vchg_mem)
+ {
+ fprintf(stderr, "FATAL ERROR, could not realloc() in fstWriterEmitValueChange, exiting.\n");
+ exit(255);
+ }
+ }
+#ifdef FST_REMOVE_DUPLICATE_VC
+ offs = vm4ip[0];
+
+ if(len != 1)
+ {
+ if((vm4ip[3]==xc->tchn_idx)&&(vm4ip[2]))
+ {
+ unsigned char *old_value = xc->vchg_mem + vm4ip[2] + 4; /* the +4 skips old vm4ip[2] value */
+ while(*(old_value++) & 0x80) { /* skips over varint encoded "xc->tchn_idx - vm4ip[3]" */ }
+ memcpy(old_value, buf, len); /* overlay new value */
+
+ memcpy(xc->curval_mem + offs, buf, len);
+ return;
+ }
+ else
+ {
+ if(!memcmp(xc->curval_mem + offs, buf, len))
+ {
+ if(!xc->curtime)
+ {
+ int i;
+ for(i=0;i<len;i++)
+ {
+ if(buf[i]!='x') break;
+ }
+
+ if(i<len) return;
+ }
+ else
+ {
+ return;
+ }
+ }
+ }
+
+ memcpy(xc->curval_mem + offs, buf, len);
+ }
+ else
+ {
+ if((vm4ip[3]==xc->tchn_idx)&&(vm4ip[2]))
+ {
+ unsigned char *old_value = xc->vchg_mem + vm4ip[2] + 4; /* the +4 skips old vm4ip[2] value */
+ while(*(old_value++) & 0x80) { /* skips over varint encoded "xc->tchn_idx - vm4ip[3]" */ }
+ *old_value = *buf; /* overlay new value */
+
+ *(xc->curval_mem + offs) = *buf;
+ return;
+ }
+ else
+ {
+ if((*(xc->curval_mem + offs)) == (*buf))
+ {
+ if(!xc->curtime)
+ {
+ if(*buf != 'x') return;
+ }
+ else
+ {
+ return;
+ }
+ }
+ }
+
+ *(xc->curval_mem + offs) = *buf;
+ }
+#endif
+ xc->vchg_siz += fstWriterUint32WithVarint32(xc, &vm4ip[2], xc->tchn_idx - vm4ip[3], buf, len); /* do one fwrite op only */
+ vm4ip[3] = xc->tchn_idx;
+ vm4ip[2] = fpos;
+ }
+ else
+ {
+ offs = vm4ip[0];
+ memcpy(xc->curval_mem + offs, buf, len);
+ }
+ }
+ }
+}
+
+
+void fstWriterEmitVariableLengthValueChange(void *ctx, fstHandle handle, const void *val, uint32_t len)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+const unsigned char *buf = (const unsigned char *)val;
+
+if((xc) && (handle <= xc->maxhandle))
+ {
+ uint32_t fpos;
+ uint32_t *vm4ip;
+
+ if(!xc->valpos_mem)
+ {
+ xc->vc_emitted = 1;
+ fstWriterCreateMmaps(xc);
+ }
+
+ handle--; /* move starting at 1 index to starting at 0 */
+ vm4ip = &(xc->valpos_mem[4*handle]);
+
+ /* there is no initial time dump for variable length value changes */
+ if(!vm4ip[1]) /* len of zero = variable length */
+ {
+ fpos = xc->vchg_siz;
+
+ if((fpos + len + 10 + 5) > xc->vchg_alloc_siz)
+ {
+ xc->vchg_alloc_siz += (xc->fst_break_add_size + len + 5); /* +len added in the case of extremely long vectors and small break add sizes */
+ xc->vchg_mem = realloc(xc->vchg_mem, xc->vchg_alloc_siz);
+ if(!xc->vchg_mem)
+ {
+ fprintf(stderr, "FATAL ERROR, could not realloc() in fstWriterEmitVariableLengthValueChange, exiting.\n");
+ exit(255);
+ }
+ }
+
+ xc->vchg_siz += fstWriterUint32WithVarint32AndLength(xc, &vm4ip[2], xc->tchn_idx - vm4ip[3], buf, len); /* do one fwrite op only */
+ vm4ip[3] = xc->tchn_idx;
+ vm4ip[2] = fpos;
+ }
+ }
+}
+
+
+void fstWriterEmitTimeChange(void *ctx, uint64_t tim)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+unsigned int i;
+int skip = 0;
+if(xc)
+ {
+ if(xc->is_initial_time)
+ {
+ if(xc->size_limit_locked) /* this resets xc->is_initial_time to one */
+ {
+ return;
+ }
+
+ if(!xc->valpos_mem)
+ {
+ fstWriterCreateMmaps(xc);
+ }
+
+ skip = 1;
+
+ xc->firsttime = (xc->vc_emitted) ? 0: tim;
+ xc->curtime = 0;
+ xc->vchg_mem[0] = '!';
+ xc->vchg_siz = 1;
+ fstWriterEmitSectionHeader(xc);
+ for(i=0;i<xc->maxhandle;i++)
+ {
+ xc->valpos_mem[4*i+2] = 0; /* zero out offset val */
+ xc->valpos_mem[4*i+3] = 0; /* zero out last time change val */
+ }
+ xc->is_initial_time = 0;
+ }
+ else
+ {
+ if((xc->vchg_siz >= xc->fst_break_size) || (xc->flush_context_pending))
+ {
+ xc->flush_context_pending = 0;
+ fstWriterFlushContextPrivate(xc);
+ xc->tchn_cnt++;
+ fstWriterVarint(xc->tchn_handle, xc->curtime);
+ }
+ }
+
+ if(!skip)
+ {
+ xc->tchn_idx++;
+ }
+ fstWriterVarint(xc->tchn_handle, tim - xc->curtime);
+ xc->tchn_cnt++;
+ xc->curtime = tim;
+ }
+}
+
+
+void fstWriterEmitDumpActive(void *ctx, int enable)
+{
+struct fstWriterContext *xc = (struct fstWriterContext *)ctx;
+
+if(xc)
+ {
+ struct fstBlackoutChain *b = calloc(1, sizeof(struct fstBlackoutChain));
+
+ b->tim = xc->curtime;
+ b->active = (enable != 0);
+
+ xc->num_blackouts++;
+ if(xc->blackout_curr)
+ {
+ xc->blackout_curr->next = b;
+ xc->blackout_curr = b;
+ }
+ else
+ {
+ xc->blackout_head = b;
+ xc->blackout_curr = b;
+ }
+ }
+}
+
+
+/***********************/
+/*** ***/
+/*** reader function ***/
+/*** ***/
+/***********************/
+
+/*
+ * private structs
+ */
+static const char *vartypes[] = {
+ "event", "integer", "parameter", "real", "real_parameter",
+ "reg", "supply0", "supply1", "time", "tri",
+ "triand", "trior", "trireg", "tri0", "tri1",
+ "wand", "wire", "wor", "port", "sparray", "realtime",
+ "string",
+ "bit", "logic", "int", "shortint", "longint", "byte", "enum", "shortreal"
+ };
+
+static const char *modtypes[] = {
+ "module", "task", "function", "begin", "fork", "generate", "struct", "union", "class", "interface", "package", "program",
+ "vhdl_architecture", "vhdl_procedure", "vhdl_function", "vhdl_record", "vhdl_process", "vhdl_block", "vhdl_for_generate", "vhdl_if_generate", "vhdl_generate", "vhdl_package"
+ };
+
+static const char *attrtypes[] = {
+ "misc", "array", "enum", "class"
+ };
+
+static const char *arraytypes[] = {
+ "none", "unpacked", "packed", "sparse"
+ };
+
+static const char *enumvaluetypes[] = {
+ "integer", "bit", "logic", "int", "shortint", "longint", "byte",
+ "unsigned_integer", "unsigned_bit", "unsigned_logic", "unsigned_int", "unsigned_shortint", "unsigned_longint", "unsigned_byte"
+ };
+
+static const char *packtypes[] = {
+ "none", "unpacked", "packed", "tagged_packed"
+ };
+
+
+struct fstCurrHier
+{
+struct fstCurrHier *prev;
+void *user_info;
+int len;
+};
+
+
+struct fstReaderContext
+{
+/* common entries */
+
+FILE *f, *fh;
+
+uint64_t start_time, end_time;
+uint64_t mem_used_by_writer;
+uint64_t scope_count;
+uint64_t var_count;
+fstHandle maxhandle;
+uint64_t num_alias;
+uint64_t vc_section_count;
+
+uint32_t *signal_lens; /* maxhandle sized */
+unsigned char *signal_typs; /* maxhandle sized */
+unsigned char *process_mask; /* maxhandle-based, bitwise sized */
+uint32_t longest_signal_value_len; /* longest len value encountered */
+unsigned char *temp_signal_value_buf; /* malloced for len in longest_signal_value_len */
+
+signed char timescale;
+unsigned char filetype;
+
+unsigned use_vcd_extensions : 1;
+unsigned double_endian_match : 1;
+unsigned native_doubles_for_cb : 1;
+unsigned contains_geom_section : 1;
+unsigned contains_hier_section : 1; /* valid for hier_pos */
+unsigned contains_hier_section_lz4duo : 1; /* valid for hier_pos (contains_hier_section_lz4 always also set) */
+unsigned contains_hier_section_lz4 : 1; /* valid for hier_pos */
+unsigned limit_range_valid : 1; /* valid for limit_range_start, limit_range_end */
+
+char version[FST_HDR_SIM_VERSION_SIZE + 1];
+char date[FST_HDR_DATE_SIZE + 1];
+int64_t timezero;
+
+char *filename, *filename_unpacked;
+off_t hier_pos;
+
+uint32_t num_blackouts;
+uint64_t *blackout_times;
+unsigned char *blackout_activity;
+
+uint64_t limit_range_start, limit_range_end;
+
+/* entries specific to read value at time functions */
+
+unsigned rvat_data_valid : 1;
+uint64_t *rvat_time_table;
+uint64_t rvat_beg_tim, rvat_end_tim;
+unsigned char *rvat_frame_data;
+uint64_t rvat_frame_maxhandle;
+off_t *rvat_chain_table;
+uint32_t *rvat_chain_table_lengths;
+uint64_t rvat_vc_maxhandle;
+off_t rvat_vc_start;
+uint32_t *rvat_sig_offs;
+
+uint32_t rvat_chain_len;
+unsigned char *rvat_chain_mem;
+fstHandle rvat_chain_facidx;
+
+uint32_t rvat_chain_pos_tidx;
+uint32_t rvat_chain_pos_idx;
+uint64_t rvat_chain_pos_time;
+unsigned rvat_chain_pos_valid : 1;
+
+/* entries specific to hierarchy traversal */
+
+struct fstHier hier;
+struct fstCurrHier *curr_hier;
+fstHandle current_handle;
+char *curr_flat_hier_nam;
+int flat_hier_alloc_len;
+unsigned do_rewind : 1;
+char str_scope_nam[FST_ID_NAM_SIZ+1];
+char str_scope_comp[FST_ID_NAM_SIZ+1];
+
+unsigned fseek_failed : 1;
+
+/* self-buffered I/O for writes */
+
+#ifndef FST_WRITEX_DISABLE
+int writex_pos;
+int writex_fd;
+unsigned char writex_buf[FST_WRITEX_MAX];
+#endif
+
+char *f_nam;
+char *fh_nam;
+};
+
+
+int fstReaderFseeko(struct fstReaderContext *xc, FILE *stream, off_t offset, int whence)
+{
+int rc = fseeko(stream, offset, whence);
+
+if(rc<0)
+ {
+ xc->fseek_failed = 1;
+#ifdef FST_DEBUG
+ fprintf(stderr, "Seek to #%"PRId64" (whence = %d) failed!\n", offset, whence);
+ perror("Why");
+#endif
+ }
+
+return(rc);
+}
+
+
+#ifndef FST_WRITEX_DISABLE
+static void fstWritex(struct fstReaderContext *xc, void *v, int len)
+{
+unsigned char *s = (unsigned char *)v;
+
+if(len)
+ {
+ if(len < FST_WRITEX_MAX)
+ {
+ if(xc->writex_pos + len >= FST_WRITEX_MAX)
+ {
+ fstWritex(xc, NULL, 0);
+ }
+
+ memcpy(xc->writex_buf + xc->writex_pos, s, len);
+ xc->writex_pos += len;
+ }
+ else
+ {
+ fstWritex(xc, NULL, 0);
+ if (write(xc->writex_fd, s, len)) { };
+ }
+ }
+ else
+ {
+ if(xc->writex_pos)
+ {
+ if(write(xc->writex_fd, xc->writex_buf, xc->writex_pos)) { };
+ xc->writex_pos = 0;
+ }
+ }
+}
+#endif
+
+
+/*
+ * scope -> flat name handling
+ */
+static void fstReaderDeallocateScopeData(struct fstReaderContext *xc)
+{
+struct fstCurrHier *chp;
+
+free(xc->curr_flat_hier_nam); xc->curr_flat_hier_nam = NULL;
+while(xc->curr_hier)
+ {
+ chp = xc->curr_hier->prev;
+ free(xc->curr_hier);
+ xc->curr_hier = chp;
+ }
+}
+
+
+const char *fstReaderGetCurrentFlatScope(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+if(xc)
+ {
+ return(xc->curr_flat_hier_nam ? xc->curr_flat_hier_nam : "");
+ }
+ else
+ {
+ return(NULL);
+ }
+}
+
+
+void *fstReaderGetCurrentScopeUserInfo(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+if(xc)
+ {
+ return(xc->curr_hier ? xc->curr_hier->user_info : NULL);
+ }
+ else
+ {
+ return(NULL);
+ }
+}
+
+
+const char *fstReaderPopScope(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+if(xc && xc->curr_hier)
+ {
+ struct fstCurrHier *ch = xc->curr_hier;
+ if(xc->curr_hier->prev)
+ {
+ xc->curr_flat_hier_nam[xc->curr_hier->prev->len] = 0;
+ }
+ else
+ {
+ *xc->curr_flat_hier_nam = 0;
+ }
+ xc->curr_hier = xc->curr_hier->prev;
+ free(ch);
+ return(xc->curr_flat_hier_nam ? xc->curr_flat_hier_nam : "");
+ }
+
+return(NULL);
+}
+
+
+void fstReaderResetScope(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ while(fstReaderPopScope(xc)); /* remove any already-built scoping info */
+ }
+}
+
+
+const char *fstReaderPushScope(void *ctx, const char *nam, void *user_info)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+if(xc)
+ {
+ struct fstCurrHier *ch = malloc(sizeof(struct fstCurrHier));
+ int chl = xc->curr_hier ? xc->curr_hier->len : 0;
+ int len = chl + 1 + strlen(nam);
+ if(len >= xc->flat_hier_alloc_len)
+ {
+ xc->curr_flat_hier_nam = xc->curr_flat_hier_nam ? realloc(xc->curr_flat_hier_nam, len+1) : malloc(len+1);
+ }
+
+ if(chl)
+ {
+ xc->curr_flat_hier_nam[chl] = '.';
+ strcpy(xc->curr_flat_hier_nam + chl + 1, nam);
+ }
+ else
+ {
+ strcpy(xc->curr_flat_hier_nam, nam);
+ len--;
+ }
+
+ ch->len = len;
+ ch->prev = xc->curr_hier;
+ ch->user_info = user_info;
+ xc->curr_hier = ch;
+ return(xc->curr_flat_hier_nam);
+ }
+
+return(NULL);
+}
+
+
+int fstReaderGetCurrentScopeLen(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc && xc->curr_hier)
+ {
+ return(xc->curr_hier->len);
+ }
+
+return(0);
+}
+
+
+int fstReaderGetFseekFailed(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+if(xc)
+ {
+ return(xc->fseek_failed != 0);
+ }
+
+return(0);
+}
+
+
+/*
+ * iter mask manipulation util functions
+ */
+int fstReaderGetFacProcessMask(void *ctx, fstHandle facidx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ facidx--;
+ if(facidx<xc->maxhandle)
+ {
+ int process_idx = facidx/8;
+ int process_bit = facidx&7;
+
+ return( (xc->process_mask[process_idx]&(1<<process_bit)) != 0 );
+ }
+ }
+return(0);
+}
+
+
+void fstReaderSetFacProcessMask(void *ctx, fstHandle facidx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ facidx--;
+ if(facidx<xc->maxhandle)
+ {
+ int idx = facidx/8;
+ int bitpos = facidx&7;
+
+ xc->process_mask[idx] |= (1<<bitpos);
+ }
+ }
+}
+
+
+void fstReaderClrFacProcessMask(void *ctx, fstHandle facidx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ facidx--;
+ if(facidx<xc->maxhandle)
+ {
+ int idx = facidx/8;
+ int bitpos = facidx&7;
+
+ xc->process_mask[idx] &= (~(1<<bitpos));
+ }
+ }
+}
+
+
+void fstReaderSetFacProcessMaskAll(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ memset(xc->process_mask, 0xff, (xc->maxhandle+7)/8);
+ }
+}
+
+
+void fstReaderClrFacProcessMaskAll(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ memset(xc->process_mask, 0x00, (xc->maxhandle+7)/8);
+ }
+}
+
+
+/*
+ * various utility read/write functions
+ */
+signed char fstReaderGetTimescale(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->timescale : 0);
+}
+
+
+uint64_t fstReaderGetStartTime(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->start_time : 0);
+}
+
+
+uint64_t fstReaderGetEndTime(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->end_time : 0);
+}
+
+
+uint64_t fstReaderGetMemoryUsedByWriter(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->mem_used_by_writer : 0);
+}
+
+
+uint64_t fstReaderGetScopeCount(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->scope_count : 0);
+}
+
+
+uint64_t fstReaderGetVarCount(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->var_count : 0);
+}
+
+
+fstHandle fstReaderGetMaxHandle(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->maxhandle : 0);
+}
+
+
+uint64_t fstReaderGetAliasCount(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->num_alias : 0);
+}
+
+
+uint64_t fstReaderGetValueChangeSectionCount(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->vc_section_count : 0);
+}
+
+
+int fstReaderGetDoubleEndianMatchState(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->double_endian_match : 0);
+}
+
+
+const char *fstReaderGetVersionString(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->version : NULL);
+}
+
+
+const char *fstReaderGetDateString(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->date : NULL);
+}
+
+
+int fstReaderGetFileType(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->filetype : FST_FT_VERILOG);
+}
+
+
+int64_t fstReaderGetTimezero(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->timezero : 0);
+}
+
+
+uint32_t fstReaderGetNumberDumpActivityChanges(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+return(xc ? xc->num_blackouts : 0);
+}
+
+
+uint64_t fstReaderGetDumpActivityChangeTime(void *ctx, uint32_t idx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc && (idx < xc->num_blackouts) && (xc->blackout_times))
+ {
+ return(xc->blackout_times[idx]);
+ }
+ else
+ {
+ return(0);
+ }
+}
+
+
+unsigned char fstReaderGetDumpActivityChangeValue(void *ctx, uint32_t idx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc && (idx < xc->num_blackouts) && (xc->blackout_activity))
+ {
+ return(xc->blackout_activity[idx]);
+ }
+ else
+ {
+ return(0);
+ }
+}
+
+
+void fstReaderSetLimitTimeRange(void *ctx, uint64_t start_time, uint64_t end_time)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ xc->limit_range_valid = 1;
+ xc->limit_range_start = start_time;
+ xc->limit_range_end = end_time;
+ }
+}
+
+
+void fstReaderSetUnlimitedTimeRange(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ xc->limit_range_valid = 0;
+ }
+}
+
+
+void fstReaderSetVcdExtensions(void *ctx, int enable)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ xc->use_vcd_extensions = (enable != 0);
+ }
+}
+
+
+void fstReaderIterBlocksSetNativeDoublesOnCallback(void *ctx, int enable)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+if(xc)
+ {
+ xc->native_doubles_for_cb = (enable != 0);
+ }
+}
+
+/*
+ * hierarchy processing
+ */
+static void fstVcdID(char *buf, unsigned int value)
+{
+char *pnt = buf;
+
+/* zero is illegal for a value...it is assumed they start at one */
+while (value)
+ {
+ value--;
+ *(pnt++) = (char)('!' + value % 94);
+ value = value / 94;
+ }
+
+*pnt = 0;
+}
+
+static int fstVcdIDForFwrite(char *buf, unsigned int value)
+{
+char *pnt = buf;
+
+/* zero is illegal for a value...it is assumed they start at one */
+while (value)
+ {
+ value--;
+ *(pnt++) = (char)('!' + value % 94);
+ value = value / 94;
+ }
+
+return(pnt - buf);
+}
+
+
+static int fstReaderRecreateHierFile(struct fstReaderContext *xc)
+{
+int pass_status = 1;
+
+if(!xc->fh)
+ {
+ off_t offs_cache = ftello(xc->f);
+ char *fnam = malloc(strlen(xc->filename) + 6 + 16 + 32 + 1);
+ unsigned char *mem = malloc(FST_GZIO_LEN);
+ off_t hl, uclen;
+ off_t clen = 0;
+ gzFile zhandle = NULL;
+ int zfd;
+ int htyp = FST_BL_SKIP;
+
+ /* can't handle both set at once should never happen in a real file */
+ if(!xc->contains_hier_section_lz4 && xc->contains_hier_section)
+ {
+ htyp = FST_BL_HIER;
+ }
+ else
+ if(xc->contains_hier_section_lz4 && !xc->contains_hier_section)
+ {
+ htyp = xc->contains_hier_section_lz4duo ? FST_BL_HIER_LZ4DUO : FST_BL_HIER_LZ4;
+ }
+
+ sprintf(fnam, "%s.hier_%d_%p", xc->filename, getpid(), (void *)xc);
+ fstReaderFseeko(xc, xc->f, xc->hier_pos, SEEK_SET);
+ uclen = fstReaderUint64(xc->f);
+#ifndef __MINGW32__
+ fflush(xc->f);
+#endif
+ if(htyp == FST_BL_HIER)
+ {
+ fstReaderFseeko(xc, xc->f, xc->hier_pos, SEEK_SET);
+ uclen = fstReaderUint64(xc->f);
+#ifndef __MINGW32__
+ fflush(xc->f);
+#endif
+ zfd = dup(fileno(xc->f));
+ zhandle = gzdopen(zfd, "rb");
+ if(!zhandle)
+ {
+ close(zfd);
+ free(mem);
+ free(fnam);
+ return(0);
+ }
+ }
+ else
+ if((htyp == FST_BL_HIER_LZ4) || (htyp == FST_BL_HIER_LZ4DUO))
+ {
+ fstReaderFseeko(xc, xc->f, xc->hier_pos - 8, SEEK_SET); /* get section len */
+ clen = fstReaderUint64(xc->f) - 16;
+ uclen = fstReaderUint64(xc->f);
+#ifndef __MINGW32__
+ fflush(xc->f);
+#endif
+ }
+
+#ifndef __MINGW32__
+ xc->fh = fopen(fnam, "w+b");
+ if(!xc->fh)
+#endif
+ {
+ xc->fh = tmpfile_open(&xc->fh_nam);
+ free(fnam); fnam = NULL;
+ if(!xc->fh)
+ {
+ tmpfile_close(&xc->fh, &xc->fh_nam);
+ free(mem);
+ return(0);
+ }
+ }
+
+#ifndef __MINGW32__
+ if(fnam) unlink(fnam);
+#endif
+
+ if(htyp == FST_BL_HIER)
+ {
+ for(hl = 0; hl < uclen; hl += FST_GZIO_LEN)
+ {
+ size_t len = ((uclen - hl) > FST_GZIO_LEN) ? FST_GZIO_LEN : (uclen - hl);
+ size_t gzreadlen = gzread(zhandle, mem, len); /* rc should equal len... */
+ size_t fwlen;
+
+ if(gzreadlen != len)
+ {
+ pass_status = 0;
+ break;
+ }
+
+ fwlen = fstFwrite(mem, len, 1, xc->fh);
+ if(fwlen != 1)
+ {
+ pass_status = 0;
+ break;
+ }
+ }
+ gzclose(zhandle);
+ }
+ else
+ if(htyp == FST_BL_HIER_LZ4DUO)
+ {
+ unsigned char *lz4_cmem = malloc(clen);
+ unsigned char *lz4_ucmem = malloc(uclen);
+ unsigned char *lz4_ucmem2;
+ uint64_t uclen2;
+ int skiplen2 = 0;
+
+ fstFread(lz4_cmem, clen, 1, xc->f);
+
+ uclen2 = fstGetVarint64(lz4_cmem, &skiplen2);
+ lz4_ucmem2 = malloc(uclen2);
+ pass_status = (uclen2 == (uint64_t)LZ4_decompress_safe_partial ((char *)lz4_cmem + skiplen2, (char *)lz4_ucmem2, clen - skiplen2, uclen2, uclen2));
+ if(pass_status)
+ {
+ pass_status = (uclen == LZ4_decompress_safe_partial ((char *)lz4_ucmem2, (char *)lz4_ucmem, uclen2, uclen, uclen));
+
+ if(fstFwrite(lz4_ucmem, uclen, 1, xc->fh) != 1)
+ {
+ pass_status = 0;
+ }
+ }
+
+ free(lz4_ucmem2);
+ free(lz4_ucmem);
+ free(lz4_cmem);
+ }
+ else
+ if(htyp == FST_BL_HIER_LZ4)
+ {
+ unsigned char *lz4_cmem = malloc(clen);
+ unsigned char *lz4_ucmem = malloc(uclen);
+
+ fstFread(lz4_cmem, clen, 1, xc->f);
+ pass_status = (uclen == LZ4_decompress_safe_partial ((char *)lz4_cmem, (char *)lz4_ucmem, clen, uclen, uclen));
+
+ if(fstFwrite(lz4_ucmem, uclen, 1, xc->fh) != 1)
+ {
+ pass_status = 0;
+ }
+
+ free(lz4_ucmem);
+ free(lz4_cmem);
+ }
+ else /* FST_BL_SKIP */
+ {
+ pass_status = 0;
+ }
+
+ free(mem);
+ free(fnam);
+
+ fstReaderFseeko(xc, xc->f, offs_cache, SEEK_SET);
+ }
+
+return(pass_status);
+}
+
+
+int fstReaderIterateHierRewind(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+int pass_status = 0;
+
+if(xc)
+ {
+ pass_status = 1;
+ if(!xc->fh)
+ {
+ pass_status = fstReaderRecreateHierFile(xc);
+ }
+
+ xc->do_rewind = 1;
+ }
+
+return(pass_status);
+}
+
+
+struct fstHier *fstReaderIterateHier(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+int isfeof;
+fstHandle alias;
+char *pnt;
+int ch;
+
+if(!xc) return(NULL);
+
+if(!xc->fh)
+ {
+ if(!fstReaderRecreateHierFile(xc))
+ {
+ return(NULL);
+ }
+ }
+
+if(xc->do_rewind)
+ {
+ xc->do_rewind = 0;
+ xc->current_handle = 0;
+ fstReaderFseeko(xc, xc->fh, 0, SEEK_SET);
+ clearerr(xc->fh);
+ }
+
+if(!(isfeof=feof(xc->fh)))
+ {
+ int tag = fgetc(xc->fh);
+ switch(tag)
+ {
+ case FST_ST_VCD_SCOPE:
+ xc->hier.htyp = FST_HT_SCOPE;
+ xc->hier.u.scope.typ = fgetc(xc->fh);
+ xc->hier.u.scope.name = pnt = xc->str_scope_nam;
+ while((ch = fgetc(xc->fh)))
+ {
+ *(pnt++) = ch;
+ }; /* scopename */
+ *pnt = 0;
+ xc->hier.u.scope.name_length = pnt - xc->hier.u.scope.name;
+
+ xc->hier.u.scope.component = pnt = xc->str_scope_comp;
+ while((ch = fgetc(xc->fh)))
+ {
+ *(pnt++) = ch;
+ }; /* scopecomp */
+ *pnt = 0;
+ xc->hier.u.scope.component_length = pnt - xc->hier.u.scope.component;
+ break;
+
+ case FST_ST_VCD_UPSCOPE:
+ xc->hier.htyp = FST_HT_UPSCOPE;
+ break;
+
+ case FST_ST_GEN_ATTRBEGIN:
+ xc->hier.htyp = FST_HT_ATTRBEGIN;
+ xc->hier.u.attr.typ = fgetc(xc->fh);
+ xc->hier.u.attr.subtype = fgetc(xc->fh);
+ xc->hier.u.attr.name = pnt = xc->str_scope_nam;
+ while((ch = fgetc(xc->fh)))
+ {
+ *(pnt++) = ch;
+ }; /* scopename */
+ *pnt = 0;
+ xc->hier.u.attr.name_length = pnt - xc->hier.u.scope.name;
+
+ xc->hier.u.attr.arg = fstReaderVarint64(xc->fh);
+
+ if(xc->hier.u.attr.typ == FST_AT_MISC)
+ {
+ if((xc->hier.u.attr.subtype == FST_MT_SOURCESTEM)||(xc->hier.u.attr.subtype == FST_MT_SOURCEISTEM))
+ {
+ int sidx_skiplen_dummy = 0;
+ xc->hier.u.attr.arg_from_name = fstGetVarint64((unsigned char *)xc->str_scope_nam, &sidx_skiplen_dummy);
+ }
+ }
+ break;
+
+ case FST_ST_GEN_ATTREND:
+ xc->hier.htyp = FST_HT_ATTREND;
+ break;
+
+ case FST_VT_VCD_EVENT:
+ case FST_VT_VCD_INTEGER:
+ case FST_VT_VCD_PARAMETER:
+ case FST_VT_VCD_REAL:
+ case FST_VT_VCD_REAL_PARAMETER:
+ case FST_VT_VCD_REG:
+ case FST_VT_VCD_SUPPLY0:
+ case FST_VT_VCD_SUPPLY1:
+ case FST_VT_VCD_TIME:
+ case FST_VT_VCD_TRI:
+ case FST_VT_VCD_TRIAND:
+ case FST_VT_VCD_TRIOR:
+ case FST_VT_VCD_TRIREG:
+ case FST_VT_VCD_TRI0:
+ case FST_VT_VCD_TRI1:
+ case FST_VT_VCD_WAND:
+ case FST_VT_VCD_WIRE:
+ case FST_VT_VCD_WOR:
+ case FST_VT_VCD_PORT:
+ case FST_VT_VCD_SPARRAY:
+ case FST_VT_VCD_REALTIME:
+ case FST_VT_GEN_STRING:
+ case FST_VT_SV_BIT:
+ case FST_VT_SV_LOGIC:
+ case FST_VT_SV_INT:
+ case FST_VT_SV_SHORTINT:
+ case FST_VT_SV_LONGINT:
+ case FST_VT_SV_BYTE:
+ case FST_VT_SV_ENUM:
+ case FST_VT_SV_SHORTREAL:
+ xc->hier.htyp = FST_HT_VAR;
+ xc->hier.u.var.svt_workspace = FST_SVT_NONE;
+ xc->hier.u.var.sdt_workspace = FST_SDT_NONE;
+ xc->hier.u.var.sxt_workspace = 0;
+ xc->hier.u.var.typ = tag;
+ xc->hier.u.var.direction = fgetc(xc->fh);
+ xc->hier.u.var.name = pnt = xc->str_scope_nam;
+ while((ch = fgetc(xc->fh)))
+ {
+ *(pnt++) = ch;
+ }; /* varname */
+ *pnt = 0;
+ xc->hier.u.var.name_length = pnt - xc->hier.u.var.name;
+ xc->hier.u.var.length = fstReaderVarint32(xc->fh);
+ if(tag == FST_VT_VCD_PORT)
+ {
+ xc->hier.u.var.length -= 2; /* removal of delimiting spaces */
+ xc->hier.u.var.length /= 3; /* port -> signal size adjust */
+ }
+
+ alias = fstReaderVarint32(xc->fh);
+
+ if(!alias)
+ {
+ xc->current_handle++;
+ xc->hier.u.var.handle = xc->current_handle;
+ xc->hier.u.var.is_alias = 0;
+ }
+ else
+ {
+ xc->hier.u.var.handle = alias;
+ xc->hier.u.var.is_alias = 1;
+ }
+
+ break;
+
+ default:
+ isfeof = 1;
+ break;
+ }
+ }
+
+return(!isfeof ? &xc->hier : NULL);
+}
+
+
+int fstReaderProcessHier(void *ctx, FILE *fv)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+char *str;
+char *pnt;
+int ch, scopetype;
+int vartype;
+uint32_t len, alias;
+/* uint32_t maxvalpos=0; */
+unsigned int num_signal_dyn = 65536;
+int attrtype, subtype;
+uint64_t attrarg;
+fstHandle maxhandle_scanbuild;
+
+if(!xc) return(0);
+
+xc->longest_signal_value_len = 32; /* arbitrarily set at 32...this is much longer than an expanded double */
+
+if(!xc->fh)
+ {
+ if(!fstReaderRecreateHierFile(xc))
+ {
+ return(0);
+ }
+ }
+
+str = malloc(FST_ID_NAM_ATTR_SIZ+1);
+
+if(fv)
+ {
+ char time_dimension[2] = {0, 0};
+ int time_scale = 1;
+
+ fprintf(fv, "$date\n\t%s\n$end\n", xc->date);
+ fprintf(fv, "$version\n\t%s\n$end\n", xc->version);
+ if(xc->timezero) fprintf(fv, "$timezero\n\t%"PRId64"\n$end\n", xc->timezero);
+
+ switch(xc->timescale)
+ {
+ case 2: time_scale = 100; time_dimension[0] = 0; break;
+ case 1: time_scale = 10;
+ case 0: time_dimension[0] = 0; break;
+
+ case -1: time_scale = 100; time_dimension[0] = 'm'; break;
+ case -2: time_scale = 10;
+ case -3: time_dimension[0] = 'm'; break;
+
+ case -4: time_scale = 100; time_dimension[0] = 'u'; break;
+ case -5: time_scale = 10;
+ case -6: time_dimension[0] = 'u'; break;
+
+ case -10: time_scale = 100; time_dimension[0] = 'p'; break;
+ case -11: time_scale = 10;
+ case -12: time_dimension[0] = 'p'; break;
+
+ case -13: time_scale = 100; time_dimension[0] = 'f'; break;
+ case -14: time_scale = 10;
+ case -15: time_dimension[0] = 'f'; break;
+
+ case -16: time_scale = 100; time_dimension[0] = 'a'; break;
+ case -17: time_scale = 10;
+ case -18: time_dimension[0] = 'a'; break;
+
+ case -19: time_scale = 100; time_dimension[0] = 'z'; break;
+ case -20: time_scale = 10;
+ case -21: time_dimension[0] = 'z'; break;
+
+ case -7: time_scale = 100; time_dimension[0] = 'n'; break;
+ case -8: time_scale = 10;
+ case -9:
+ default: time_dimension[0] = 'n'; break;
+ }
+
+ if(fv) fprintf(fv, "$timescale\n\t%d%ss\n$end\n", time_scale, time_dimension);
+ }
+
+xc->maxhandle = 0;
+xc->num_alias = 0;
+
+free(xc->signal_lens);
+xc->signal_lens = malloc(num_signal_dyn*sizeof(uint32_t));
+
+free(xc->signal_typs);
+xc->signal_typs = malloc(num_signal_dyn*sizeof(unsigned char));
+
+fstReaderFseeko(xc, xc->fh, 0, SEEK_SET);
+while(!feof(xc->fh))
+ {
+ int tag = fgetc(xc->fh);
+ switch(tag)
+ {
+ case FST_ST_VCD_SCOPE:
+ scopetype = fgetc(xc->fh);
+ if((scopetype < FST_ST_MIN) || (scopetype > FST_ST_MAX)) scopetype = FST_ST_VCD_MODULE;
+ pnt = str;
+ while((ch = fgetc(xc->fh)))
+ {
+ *(pnt++) = ch;
+ }; /* scopename */
+ *pnt = 0;
+ while(fgetc(xc->fh)) { }; /* scopecomp */
+
+ if(fv) fprintf(fv, "$scope %s %s $end\n", modtypes[scopetype], str);
+ break;
+
+ case FST_ST_VCD_UPSCOPE:
+ if(fv) fprintf(fv, "$upscope $end\n");
+ break;
+
+ case FST_ST_GEN_ATTRBEGIN:
+ attrtype = fgetc(xc->fh);
+ subtype = fgetc(xc->fh);
+ pnt = str;
+ while((ch = fgetc(xc->fh)))
+ {
+ *(pnt++) = ch;
+ }; /* attrname */
+ *pnt = 0;
+
+ if(!str[0]) { strcpy(str, "\"\""); }
+
+ attrarg = fstReaderVarint64(xc->fh);
+
+ if(fv && xc->use_vcd_extensions)
+ {
+ switch(attrtype)
+ {
+ case FST_AT_ARRAY: if((subtype < FST_AR_NONE) || (subtype > FST_AR_MAX)) subtype = FST_AR_NONE;
+ fprintf(fv, "$attrbegin %s %s %s %"PRId64" $end\n", attrtypes[attrtype], arraytypes[subtype], str, attrarg);
+ break;
+ case FST_AT_ENUM: if((subtype < FST_EV_SV_INTEGER) || (subtype > FST_EV_MAX)) subtype = FST_EV_SV_INTEGER;
+ fprintf(fv, "$attrbegin %s %s %s %"PRId64" $end\n", attrtypes[attrtype], enumvaluetypes[subtype], str, attrarg);
+ break;
+ case FST_AT_PACK: if((subtype < FST_PT_NONE) || (subtype > FST_PT_MAX)) subtype = FST_PT_NONE;
+ fprintf(fv, "$attrbegin %s %s %s %"PRId64" $end\n", attrtypes[attrtype], packtypes[subtype], str, attrarg);
+ break;
+ case FST_AT_MISC:
+ default: attrtype = FST_AT_MISC;
+ if(subtype == FST_MT_COMMENT)
+ {
+ fprintf(fv, "$comment\n\t%s\n$end\n", str);
+ }
+ else
+ {
+ if((subtype == FST_MT_SOURCESTEM)||(subtype == FST_MT_SOURCEISTEM))
+ {
+ int sidx_skiplen_dummy = 0;
+ uint64_t sidx = fstGetVarint64((unsigned char *)str, &sidx_skiplen_dummy);
+
+ fprintf(fv, "$attrbegin %s %02x %"PRId64" %"PRId64" $end\n", attrtypes[attrtype], subtype, sidx, attrarg);
+ }
+ else
+ {
+ fprintf(fv, "$attrbegin %s %02x %s %"PRId64" $end\n", attrtypes[attrtype], subtype, str, attrarg);
+ }
+ }
+ break;
+ }
+ }
+ break;
+
+ case FST_ST_GEN_ATTREND:
+ if(fv && xc->use_vcd_extensions) fprintf(fv, "$attrend $end\n");
+ break;
+
+ case FST_VT_VCD_EVENT:
+ case FST_VT_VCD_INTEGER:
+ case FST_VT_VCD_PARAMETER:
+ case FST_VT_VCD_REAL:
+ case FST_VT_VCD_REAL_PARAMETER:
+ case FST_VT_VCD_REG:
+ case FST_VT_VCD_SUPPLY0:
+ case FST_VT_VCD_SUPPLY1:
+ case FST_VT_VCD_TIME:
+ case FST_VT_VCD_TRI:
+ case FST_VT_VCD_TRIAND:
+ case FST_VT_VCD_TRIOR:
+ case FST_VT_VCD_TRIREG:
+ case FST_VT_VCD_TRI0:
+ case FST_VT_VCD_TRI1:
+ case FST_VT_VCD_WAND:
+ case FST_VT_VCD_WIRE:
+ case FST_VT_VCD_WOR:
+ case FST_VT_VCD_PORT:
+ case FST_VT_VCD_SPARRAY:
+ case FST_VT_VCD_REALTIME:
+ case FST_VT_GEN_STRING:
+ case FST_VT_SV_BIT:
+ case FST_VT_SV_LOGIC:
+ case FST_VT_SV_INT:
+ case FST_VT_SV_SHORTINT:
+ case FST_VT_SV_LONGINT:
+ case FST_VT_SV_BYTE:
+ case FST_VT_SV_ENUM:
+ case FST_VT_SV_SHORTREAL:
+ vartype = tag;
+ /* vardir = */ fgetc(xc->fh); /* unused in VCD reader, but need to advance read pointer */
+ pnt = str;
+ while((ch = fgetc(xc->fh)))
+ {
+ *(pnt++) = ch;
+ }; /* varname */
+ *pnt = 0;
+ len = fstReaderVarint32(xc->fh);
+ alias = fstReaderVarint32(xc->fh);
+
+ if(!alias)
+ {
+ if(xc->maxhandle == num_signal_dyn)
+ {
+ num_signal_dyn *= 2;
+ xc->signal_lens = realloc(xc->signal_lens, num_signal_dyn*sizeof(uint32_t));
+ xc->signal_typs = realloc(xc->signal_typs, num_signal_dyn*sizeof(unsigned char));
+ }
+ xc->signal_lens[xc->maxhandle] = len;
+ xc->signal_typs[xc->maxhandle] = vartype;
+
+ /* maxvalpos+=len; */
+ if(len > xc->longest_signal_value_len)
+ {
+ xc->longest_signal_value_len = len;
+ }
+
+ if((vartype == FST_VT_VCD_REAL) || (vartype == FST_VT_VCD_REAL_PARAMETER) || (vartype == FST_VT_VCD_REALTIME) || (vartype == FST_VT_SV_SHORTREAL))
+ {
+ len = (vartype != FST_VT_SV_SHORTREAL) ? 64 : 32;
+ xc->signal_typs[xc->maxhandle] = FST_VT_VCD_REAL;
+ }
+ if(fv)
+ {
+ char vcdid_buf[16];
+ uint32_t modlen = (vartype != FST_VT_VCD_PORT) ? len : ((len - 2) / 3);
+ fstVcdID(vcdid_buf, xc->maxhandle+1);
+ fprintf(fv, "$var %s %"PRIu32" %s %s $end\n", vartypes[vartype], modlen, vcdid_buf, str);
+ }
+ xc->maxhandle++;
+ }
+ else
+ {
+ if((vartype == FST_VT_VCD_REAL) || (vartype == FST_VT_VCD_REAL_PARAMETER) || (vartype == FST_VT_VCD_REALTIME) || (vartype == FST_VT_SV_SHORTREAL))
+ {
+ len = (vartype != FST_VT_SV_SHORTREAL) ? 64 : 32;
+ xc->signal_typs[xc->maxhandle] = FST_VT_VCD_REAL;
+ }
+ if(fv)
+ {
+ char vcdid_buf[16];
+ uint32_t modlen = (vartype != FST_VT_VCD_PORT) ? len : ((len - 2) / 3);
+ fstVcdID(vcdid_buf, alias);
+ fprintf(fv, "$var %s %"PRIu32" %s %s $end\n", vartypes[vartype], modlen, vcdid_buf, str);
+ }
+ xc->num_alias++;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+ }
+if(fv) fprintf(fv, "$enddefinitions $end\n");
+
+maxhandle_scanbuild = xc->maxhandle ? xc->maxhandle : 1; /*scan-build warning suppression, in reality we have at least one signal */
+
+xc->signal_lens = realloc(xc->signal_lens, maxhandle_scanbuild*sizeof(uint32_t));
+xc->signal_typs = realloc(xc->signal_typs, maxhandle_scanbuild*sizeof(unsigned char));
+
+free(xc->process_mask);
+xc->process_mask = calloc(1, (maxhandle_scanbuild+7)/8);
+
+free(xc->temp_signal_value_buf);
+xc->temp_signal_value_buf = malloc(xc->longest_signal_value_len + 1);
+
+xc->var_count = xc->maxhandle + xc->num_alias;
+
+free(str);
+return(1);
+}
+
+
+/*
+ * reader file open/close functions
+ */
+int fstReaderInit(struct fstReaderContext *xc)
+{
+off_t blkpos = 0;
+off_t endfile;
+uint64_t seclen;
+int sectype;
+uint64_t vc_section_count_actual = 0;
+int hdr_incomplete = 0;
+int hdr_seen = 0;
+int gzread_pass_status = 1;
+
+sectype = fgetc(xc->f);
+if(sectype == FST_BL_ZWRAPPER)
+ {
+ FILE *fcomp;
+ off_t offpnt, uclen;
+ char gz_membuf[FST_GZIO_LEN];
+ void *zhandle;
+ int zfd;
+ int flen = strlen(xc->filename);
+ char *hf;
+
+ seclen = fstReaderUint64(xc->f);
+ uclen = fstReaderUint64(xc->f);
+
+ if(!seclen) return(0); /* not finished compressing, this is a failed read */
+
+ hf = calloc(1, flen + 16 + 32 + 1);
+
+ sprintf(hf, "%s.upk_%d_%p", xc->filename, getpid(), (void *)xc);
+ fcomp = fopen(hf, "w+b");
+ if(!fcomp)
+ {
+ fcomp = tmpfile_open(&xc->f_nam);
+ free(hf); hf = NULL;
+ if(!fcomp) { tmpfile_close(&fcomp, &xc->f_nam); return(0); }
+ }
+
+#if defined(FST_MACOSX)
+ setvbuf(fcomp, (char *)NULL, _IONBF, 0); /* keeps gzip from acting weird in tandem with fopen */
+#endif
+
+#ifdef __MINGW32__
+ setvbuf(fcomp, (char *)NULL, _IONBF, 0); /* keeps gzip from acting weird in tandem with fopen */
+ xc->filename_unpacked = hf;
+#else
+ if(hf)
+ {
+ unlink(hf);
+ free(hf);
+ }
+#endif
+
+ fstReaderFseeko(xc, xc->f, 1+8+8, SEEK_SET);
+#ifndef __MINGW32__
+ fflush(xc->f);
+#endif
+
+ zfd = dup(fileno(xc->f));
+ zhandle = gzdopen(zfd, "rb");
+ if(zhandle)
+ {
+ for(offpnt = 0; offpnt < uclen; offpnt += FST_GZIO_LEN)
+ {
+ size_t this_len = ((uclen - offpnt) > FST_GZIO_LEN) ? FST_GZIO_LEN : (uclen - offpnt);
+ size_t gzreadlen = gzread(zhandle, gz_membuf, this_len);
+ size_t fwlen;
+
+ if(gzreadlen != this_len)
+ {
+ gzread_pass_status = 0;
+ break;
+ }
+ fwlen = fstFwrite(gz_membuf, this_len, 1, fcomp);
+ if(fwlen != 1)
+ {
+ gzread_pass_status = 0;
+ break;
+ }
+ }
+ gzclose(zhandle);
+ }
+ else
+ {
+ close(zfd);
+ }
+ fflush(fcomp);
+ fclose(xc->f);
+ xc->f = fcomp;
+ }
+
+if(gzread_pass_status)
+ {
+ fstReaderFseeko(xc, xc->f, 0, SEEK_END);
+ endfile = ftello(xc->f);
+
+ while(blkpos < endfile)
+ {
+ fstReaderFseeko(xc, xc->f, blkpos, SEEK_SET);
+
+ sectype = fgetc(xc->f);
+ seclen = fstReaderUint64(xc->f);
+
+ if(sectype == EOF)
+ {
+ break;
+ }
+
+ if((hdr_incomplete) && (!seclen))
+ {
+ break;
+ }
+
+ if(!hdr_seen && (sectype != FST_BL_HDR))
+ {
+ break;
+ }
+
+ blkpos++;
+ if(sectype == FST_BL_HDR)
+ {
+ if(!hdr_seen)
+ {
+ int ch;
+ double dcheck;
+
+ xc->start_time = fstReaderUint64(xc->f);
+ xc->end_time = fstReaderUint64(xc->f);
+
+ hdr_incomplete = (xc->start_time == 0) && (xc->end_time == 0);
+
+ fstFread(&dcheck, 8, 1, xc->f);
+ xc->double_endian_match = (dcheck == FST_DOUBLE_ENDTEST);
+ if(!xc->double_endian_match)
+ {
+ union {
+ unsigned char rvs_buf[8];
+ double d;
+ } vu;
+
+ unsigned char *dcheck_alias = (unsigned char *)&dcheck;
+ int rvs_idx;
+
+ for(rvs_idx=0;rvs_idx<8;rvs_idx++)
+ {
+ vu.rvs_buf[rvs_idx] = dcheck_alias[7-rvs_idx];
+ }
+ if(vu.d != FST_DOUBLE_ENDTEST)
+ {
+ break; /* either corrupt file or wrong architecture (offset +33 also functions as matchword) */
+ }
+ }
+
+ hdr_seen = 1;
+
+ xc->mem_used_by_writer = fstReaderUint64(xc->f);
+ xc->scope_count = fstReaderUint64(xc->f);
+ xc->var_count = fstReaderUint64(xc->f);
+ xc->maxhandle = fstReaderUint64(xc->f);
+ xc->num_alias = xc->var_count - xc->maxhandle;
+ xc->vc_section_count = fstReaderUint64(xc->f);
+ ch = fgetc(xc->f);
+ xc->timescale = (signed char)ch;
+ fstFread(xc->version, FST_HDR_SIM_VERSION_SIZE, 1, xc->f);
+ xc->version[FST_HDR_SIM_VERSION_SIZE] = 0;
+ fstFread(xc->date, FST_HDR_DATE_SIZE, 1, xc->f);
+ xc->date[FST_HDR_DATE_SIZE] = 0;
+ ch = fgetc(xc->f);
+ xc->filetype = (unsigned char)ch;
+ xc->timezero = fstReaderUint64(xc->f);
+ }
+ }
+ else if((sectype == FST_BL_VCDATA) || (sectype == FST_BL_VCDATA_DYN_ALIAS) || (sectype == FST_BL_VCDATA_DYN_ALIAS2))
+ {
+ if(hdr_incomplete)
+ {
+ uint64_t bt = fstReaderUint64(xc->f);
+ xc->end_time = fstReaderUint64(xc->f);
+
+ if(!vc_section_count_actual) { xc->start_time = bt; }
+ }
+
+ vc_section_count_actual++;
+ }
+ else if(sectype == FST_BL_GEOM)
+ {
+ if(!hdr_incomplete)
+ {
+ uint64_t clen = seclen - 24;
+ uint64_t uclen = fstReaderUint64(xc->f);
+ unsigned char *ucdata = malloc(uclen);
+ unsigned char *pnt = ucdata;
+ unsigned int i;
+
+ xc->contains_geom_section = 1;
+ xc->maxhandle = fstReaderUint64(xc->f);
+ xc->longest_signal_value_len = 32; /* arbitrarily set at 32...this is much longer than an expanded double */
+
+ free(xc->process_mask);
+ xc->process_mask = calloc(1, (xc->maxhandle+7)/8);
+
+ if(clen != uclen)
+ {
+ unsigned char *cdata = malloc(clen);
+ unsigned long destlen = uclen;
+ unsigned long sourcelen = clen;
+ int rc;
+
+ fstFread(cdata, clen, 1, xc->f);
+ rc = uncompress(ucdata, &destlen, cdata, sourcelen);
+
+ if(rc != Z_OK)
+ {
+ printf("geom uncompress rc = %d\n", rc);
+ exit(255);
+ }
+
+ free(cdata);
+ }
+ else
+ {
+ fstFread(ucdata, uclen, 1, xc->f);
+ }
+
+ free(xc->signal_lens);
+ xc->signal_lens = malloc(sizeof(uint32_t) * xc->maxhandle);
+ free(xc->signal_typs);
+ xc->signal_typs = malloc(sizeof(unsigned char) * xc->maxhandle);
+
+ for(i=0;i<xc->maxhandle;i++)
+ {
+ int skiplen;
+ uint64_t val = fstGetVarint32(pnt, &skiplen);
+
+ pnt += skiplen;
+
+ if(val)
+ {
+ xc->signal_lens[i] = (val != 0xFFFFFFFF) ? val : 0;
+ xc->signal_typs[i] = FST_VT_VCD_WIRE;
+ if(xc->signal_lens[i] > xc->longest_signal_value_len)
+ {
+ xc->longest_signal_value_len = xc->signal_lens[i];
+ }
+ }
+ else
+ {
+ xc->signal_lens[i] = 8; /* backpatch in real */
+ xc->signal_typs[i] = FST_VT_VCD_REAL;
+ /* xc->longest_signal_value_len handled above by overly large init size */
+ }
+ }
+
+ free(xc->temp_signal_value_buf);
+ xc->temp_signal_value_buf = malloc(xc->longest_signal_value_len + 1);
+
+ free(ucdata);
+ }
+ }
+ else if(sectype == FST_BL_HIER)
+ {
+ xc->contains_hier_section = 1;
+ xc->hier_pos = ftello(xc->f);
+ }
+ else if(sectype == FST_BL_HIER_LZ4DUO)
+ {
+ xc->contains_hier_section_lz4 = 1;
+ xc->contains_hier_section_lz4duo = 1;
+ xc->hier_pos = ftello(xc->f);
+ }
+ else if(sectype == FST_BL_HIER_LZ4)
+ {
+ xc->contains_hier_section_lz4 = 1;
+ xc->hier_pos = ftello(xc->f);
+ }
+ else if(sectype == FST_BL_BLACKOUT)
+ {
+ uint32_t i;
+ uint64_t cur_bl = 0;
+ uint64_t delta;
+
+ xc->num_blackouts = fstReaderVarint32(xc->f);
+ free(xc->blackout_times);
+ xc->blackout_times = calloc(xc->num_blackouts, sizeof(uint64_t));
+ free(xc->blackout_activity);
+ xc->blackout_activity = calloc(xc->num_blackouts, sizeof(unsigned char));
+
+ for(i=0;i<xc->num_blackouts;i++)
+ {
+ xc->blackout_activity[i] = fgetc(xc->f) != 0;
+ delta = fstReaderVarint64(xc->f);
+ cur_bl += delta;
+ xc->blackout_times[i] = cur_bl;
+ }
+ }
+
+ blkpos += seclen;
+ if(!hdr_seen) break;
+ }
+
+ if(hdr_seen)
+ {
+ if(xc->vc_section_count != vc_section_count_actual)
+ {
+ xc->vc_section_count = vc_section_count_actual;
+ }
+
+ if(!xc->contains_geom_section)
+ {
+ fstReaderProcessHier(xc, NULL); /* recreate signal_lens/signal_typs info */
+ }
+ }
+ }
+
+return(hdr_seen);
+}
+
+
+void *fstReaderOpenForUtilitiesOnly(void)
+{
+struct fstReaderContext *xc = calloc(1, sizeof(struct fstReaderContext));
+
+return(xc);
+}
+
+
+void *fstReaderOpen(const char *nam)
+{
+struct fstReaderContext *xc = calloc(1, sizeof(struct fstReaderContext));
+
+if((!nam)||(!(xc->f=fopen(nam, "rb"))))
+ {
+ free(xc);
+ xc=NULL;
+ }
+ else
+ {
+ int flen = strlen(nam);
+ char *hf = calloc(1, flen + 6);
+ int rc;
+
+#if defined(__MINGW32__) || defined(FST_MACOSX)
+ setvbuf(xc->f, (char *)NULL, _IONBF, 0); /* keeps gzip from acting weird in tandem with fopen */
+#endif
+
+ memcpy(hf, nam, flen);
+ strcpy(hf + flen, ".hier");
+ xc->fh = fopen(hf, "rb");
+
+ free(hf);
+ xc->filename = strdup(nam);
+ rc = fstReaderInit(xc);
+
+ if((rc) && (xc->vc_section_count) && (xc->maxhandle) && ((xc->fh)||(xc->contains_hier_section||(xc->contains_hier_section_lz4))))
+ {
+ /* more init */
+ xc->do_rewind = 1;
+ }
+ else
+ {
+ fstReaderClose(xc);
+ xc = NULL;
+ }
+ }
+
+return(xc);
+}
+
+
+static void fstReaderDeallocateRvatData(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+if(xc)
+ {
+ free(xc->rvat_chain_mem); xc->rvat_chain_mem = NULL;
+ free(xc->rvat_frame_data); xc->rvat_frame_data = NULL;
+ free(xc->rvat_time_table); xc->rvat_time_table = NULL;
+ free(xc->rvat_chain_table); xc->rvat_chain_table = NULL;
+ free(xc->rvat_chain_table_lengths); xc->rvat_chain_table_lengths = NULL;
+
+ xc->rvat_data_valid = 0;
+ }
+}
+
+
+void fstReaderClose(void *ctx)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+if(xc)
+ {
+ fstReaderDeallocateScopeData(xc);
+ fstReaderDeallocateRvatData(xc);
+ free(xc->rvat_sig_offs); xc->rvat_sig_offs = NULL;
+
+ free(xc->process_mask); xc->process_mask = NULL;
+ free(xc->blackout_times); xc->blackout_times = NULL;
+ free(xc->blackout_activity); xc->blackout_activity = NULL;
+ free(xc->temp_signal_value_buf); xc->temp_signal_value_buf = NULL;
+ free(xc->signal_typs); xc->signal_typs = NULL;
+ free(xc->signal_lens); xc->signal_lens = NULL;
+ free(xc->filename); xc->filename = NULL;
+
+ if(xc->fh)
+ {
+ tmpfile_close(&xc->fh, &xc->fh_nam);
+ }
+
+ if(xc->f)
+ {
+ tmpfile_close(&xc->f, &xc->f_nam);
+ if(xc->filename_unpacked)
+ {
+ unlink(xc->filename_unpacked);
+ free(xc->filename_unpacked);
+ }
+ }
+
+ free(xc);
+ }
+}
+
+
+/*
+ * read processing
+ */
+
+/* normal read which re-interleaves the value change data */
+int fstReaderIterBlocks(void *ctx,
+ void (*value_change_callback)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value),
+ void *user_callback_data_pointer, FILE *fv)
+{
+return(fstReaderIterBlocks2(ctx, value_change_callback, NULL, user_callback_data_pointer, fv));
+}
+
+
+int fstReaderIterBlocks2(void *ctx,
+ void (*value_change_callback)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value),
+ void (*value_change_callback_varlen)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value, uint32_t len),
+ void *user_callback_data_pointer, FILE *fv)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+
+uint64_t previous_time = UINT64_MAX;
+uint64_t *time_table = NULL;
+uint64_t tsec_nitems;
+unsigned int secnum = 0;
+int blocks_skipped = 0;
+off_t blkpos = 0;
+uint64_t seclen, beg_tim;
+#ifdef FST_DEBUG
+uint64_t end_tim;
+#endif
+uint64_t frame_uclen, frame_clen, frame_maxhandle, vc_maxhandle;
+off_t vc_start;
+off_t indx_pntr, indx_pos;
+off_t *chain_table = NULL;
+uint32_t *chain_table_lengths = NULL;
+unsigned char *chain_cmem;
+unsigned char *pnt;
+long chain_clen;
+fstHandle idx, pidx=0, i;
+uint64_t pval;
+uint64_t vc_maxhandle_largest = 0;
+uint64_t tsec_uclen = 0, tsec_clen = 0;
+int sectype;
+uint64_t mem_required_for_traversal;
+unsigned char *mem_for_traversal = NULL;
+uint32_t traversal_mem_offs;
+uint32_t *scatterptr, *headptr, *length_remaining;
+uint32_t cur_blackout = 0;
+int packtype;
+unsigned char *mc_mem = NULL;
+uint32_t mc_mem_len; /* corresponds to largest value encountered in chain_table_lengths[i] */
+
+if(!xc) return(0);
+
+scatterptr = calloc(xc->maxhandle, sizeof(uint32_t));
+headptr = calloc(xc->maxhandle, sizeof(uint32_t));
+length_remaining = calloc(xc->maxhandle, sizeof(uint32_t));
+
+if(fv)
+ {
+ fprintf(fv, "$dumpvars\n");
+#ifndef FST_WRITEX_DISABLE
+ fflush(fv);
+ setvbuf(fv, (char *) NULL, _IONBF, 0); /* even buffered IO is slow so disable it and use our own routines that don't need seeking */
+ xc->writex_fd = fileno(fv);
+#endif
+ }
+
+for(;;)
+ {
+ uint32_t *tc_head = NULL;
+ traversal_mem_offs = 0;
+
+ fstReaderFseeko(xc, xc->f, blkpos, SEEK_SET);
+
+ sectype = fgetc(xc->f);
+ seclen = fstReaderUint64(xc->f);
+
+ if((sectype == EOF) || (sectype == FST_BL_SKIP))
+ {
+#ifdef FST_DEBUG
+ fprintf(stderr, "<< EOF >>\n");
+#endif
+ break;
+ }
+
+ blkpos++;
+ if((sectype != FST_BL_VCDATA) && (sectype != FST_BL_VCDATA_DYN_ALIAS) && (sectype != FST_BL_VCDATA_DYN_ALIAS2))
+ {
+ blkpos += seclen;
+ continue;
+ }
+
+ if(!seclen) break;
+
+ beg_tim = fstReaderUint64(xc->f);
+#ifdef FST_DEBUG
+ end_tim =
+#endif
+ fstReaderUint64(xc->f);
+
+ if(xc->limit_range_valid)
+ {
+ if(beg_tim < xc->limit_range_start)
+ {
+ blocks_skipped++;
+ blkpos += seclen;
+ continue;
+ }
+
+ if(beg_tim > xc->limit_range_end) /* likely the compare in for(i=0;i<tsec_nitems;i++) below would do this earlier */
+ {
+ break;
+ }
+ }
+
+
+ mem_required_for_traversal = fstReaderUint64(xc->f);
+ mem_for_traversal = malloc(mem_required_for_traversal + 66); /* add in potential fastlz overhead */
+#ifdef FST_DEBUG
+ fprintf(stderr, "sec: %u seclen: %d begtim: %d endtim: %d\n",
+ secnum, (int)seclen, (int)beg_tim, (int)end_tim);
+ fprintf(stderr, "\tmem_required_for_traversal: %d\n", (int)mem_required_for_traversal);
+#endif
+ /* process time block */
+ {
+ unsigned char *ucdata;
+ unsigned char *cdata;
+ unsigned long destlen /* = tsec_uclen */; /* scan-build */
+ unsigned long sourcelen /*= tsec_clen */; /* scan-build */
+ int rc;
+ unsigned char *tpnt;
+ uint64_t tpval;
+ unsigned int ti;
+
+ if(fstReaderFseeko(xc, xc->f, blkpos + seclen - 24, SEEK_SET) != 0) break;
+ tsec_uclen = fstReaderUint64(xc->f);
+ tsec_clen = fstReaderUint64(xc->f);
+ tsec_nitems = fstReaderUint64(xc->f);
+#ifdef FST_DEBUG
+ fprintf(stderr, "\ttime section unc: %d, com: %d (%d items)\n",
+ (int)tsec_uclen, (int)tsec_clen, (int)tsec_nitems);
+#endif
+ if(tsec_clen > seclen) break; /* corrupted tsec_clen: by definition it can't be larger than size of section */
+ ucdata = malloc(tsec_uclen);
+ if(!ucdata) break; /* malloc fail as tsec_uclen out of range from corrupted file */
+ destlen = tsec_uclen;
+ sourcelen = tsec_clen;
+
+ fstReaderFseeko(xc, xc->f, -24 - ((off_t)tsec_clen), SEEK_CUR);
+
+ if(tsec_uclen != tsec_clen)
+ {
+ cdata = malloc(tsec_clen);
+ fstFread(cdata, tsec_clen, 1, xc->f);
+
+ rc = uncompress(ucdata, &destlen, cdata, sourcelen);
+
+ if(rc != Z_OK)
+ {
+ printf("tsec uncompress rc = %d\n", rc);
+ exit(255);
+ }
+
+ free(cdata);
+ }
+ else
+ {
+ fstFread(ucdata, tsec_uclen, 1, xc->f);
+ }
+
+ free(time_table);
+ time_table = calloc(tsec_nitems, sizeof(uint64_t));
+ tpnt = ucdata;
+ tpval = 0;
+ for(ti=0;ti<tsec_nitems;ti++)
+ {
+ int skiplen;
+ uint64_t val = fstGetVarint64(tpnt, &skiplen);
+ tpval = time_table[ti] = tpval + val;
+ tpnt += skiplen;
+ }
+
+ tc_head = calloc(tsec_nitems /* scan-build */ ? tsec_nitems : 1, sizeof(uint32_t));
+ free(ucdata);
+ }
+
+ fstReaderFseeko(xc, xc->f, blkpos+32, SEEK_SET);
+
+ frame_uclen = fstReaderVarint64(xc->f);
+ frame_clen = fstReaderVarint64(xc->f);
+ frame_maxhandle = fstReaderVarint64(xc->f);
+
+ if(secnum == 0)
+ {
+ if((beg_tim != time_table[0]) || (blocks_skipped))
+ {
+ unsigned char *mu = malloc(frame_uclen);
+ uint32_t sig_offs = 0;
+
+ if(fv)
+ {
+ char wx_buf[32];
+ int wx_len;
+
+ if(beg_tim)
+ {
+ wx_len = sprintf(wx_buf, "#%"PRIu64"\n", beg_tim);
+ fstWritex(xc, wx_buf, wx_len);
+ }
+ if((xc->num_blackouts)&&(cur_blackout != xc->num_blackouts))
+ {
+ if(beg_tim == xc->blackout_times[cur_blackout])
+ {
+ wx_len = sprintf(wx_buf, "$dump%s $end\n", (xc->blackout_activity[cur_blackout++]) ? "on" : "off");
+ fstWritex(xc, wx_buf, wx_len);
+ }
+ }
+ }
+
+ if(frame_uclen == frame_clen)
+ {
+ fstFread(mu, frame_uclen, 1, xc->f);
+ }
+ else
+ {
+ unsigned char *mc = malloc(frame_clen);
+ int rc;
+
+ unsigned long destlen = frame_uclen;
+ unsigned long sourcelen = frame_clen;
+
+ fstFread(mc, sourcelen, 1, xc->f);
+ rc = uncompress(mu, &destlen, mc, sourcelen);
+ if(rc != Z_OK)
+ {
+ printf("rc: %d\n", rc);
+ exit(255);
+ }
+ free(mc);
+ }
+
+
+ for(idx=0;idx<frame_maxhandle;idx++)
+ {
+ int process_idx = idx/8;
+ int process_bit = idx&7;
+
+ if(xc->process_mask[process_idx]&(1<<process_bit))
+ {
+ if(xc->signal_lens[idx] <= 1)
+ {
+ if(xc->signal_lens[idx] == 1)
+ {
+ unsigned char val = mu[sig_offs];
+ if(value_change_callback)
+ {
+ xc->temp_signal_value_buf[0] = val;
+ xc->temp_signal_value_buf[1] = 0;
+ value_change_callback(user_callback_data_pointer, beg_tim, idx+1, xc->temp_signal_value_buf);
+ }
+ else
+ {
+ if(fv)
+ {
+ char vcd_id[16];
+
+ int vcdid_len = fstVcdIDForFwrite(vcd_id+1, idx+1);
+ vcd_id[0] = val; /* collapse 3 writes into one I/O call */
+ vcd_id[vcdid_len + 1] = '\n';
+ fstWritex(xc, vcd_id, vcdid_len + 2);
+ }
+ }
+ }
+ else
+ {
+ /* variable-length ("0" length) records have no initial state */
+ }
+ }
+ else
+ {
+ if(xc->signal_typs[idx] != FST_VT_VCD_REAL)
+ {
+ if(value_change_callback)
+ {
+ memcpy(xc->temp_signal_value_buf, mu+sig_offs, xc->signal_lens[idx]);
+ xc->temp_signal_value_buf[xc->signal_lens[idx]] = 0;
+ value_change_callback(user_callback_data_pointer, beg_tim, idx+1, xc->temp_signal_value_buf);
+ }
+ else
+ {
+ if(fv)
+ {
+ char vcd_id[16];
+ int vcdid_len = fstVcdIDForFwrite(vcd_id+1, idx+1);
+
+ vcd_id[0] = (xc->signal_typs[idx] != FST_VT_VCD_PORT) ? 'b' : 'p';
+ fstWritex(xc, vcd_id, 1);
+ fstWritex(xc,mu+sig_offs, xc->signal_lens[idx]);
+
+ vcd_id[0] = ' '; /* collapse 3 writes into one I/O call */
+ vcd_id[vcdid_len + 1] = '\n';
+ fstWritex(xc, vcd_id, vcdid_len + 2);
+ }
+ }
+ }
+ else
+ {
+ double d;
+ unsigned char *clone_d;
+ unsigned char *srcdata = mu+sig_offs;
+
+ if(value_change_callback)
+ {
+ if(xc->native_doubles_for_cb)
+ {
+ if(xc->double_endian_match)
+ {
+ clone_d = srcdata;
+ }
+ else
+ {
+ int j;
+
+ clone_d = (unsigned char *)&d;
+ for(j=0;j<8;j++)
+ {
+ clone_d[j] = srcdata[7-j];
+ }
+ }
+ value_change_callback(user_callback_data_pointer, beg_tim, idx+1, clone_d);
+ }
+ else
+ {
+ clone_d = (unsigned char *)&d;
+ if(xc->double_endian_match)
+ {
+ memcpy(clone_d, srcdata, 8);
+ }
+ else
+ {
+ int j;
+
+ for(j=0;j<8;j++)
+ {
+ clone_d[j] = srcdata[7-j];
+ }
+ }
+ sprintf((char *)xc->temp_signal_value_buf, "%.16g", d);
+ value_change_callback(user_callback_data_pointer, beg_tim, idx+1, xc->temp_signal_value_buf);
+ }
+ }
+ else
+ {
+ if(fv)
+ {
+ char vcdid_buf[16];
+ char wx_buf[64];
+ int wx_len;
+
+ clone_d = (unsigned char *)&d;
+ if(xc->double_endian_match)
+ {
+ memcpy(clone_d, srcdata, 8);
+ }
+ else
+ {
+ int j;
+
+ for(j=0;j<8;j++)
+ {
+ clone_d[j] = srcdata[7-j];
+ }
+ }
+
+ fstVcdID(vcdid_buf, idx+1);
+ wx_len = sprintf(wx_buf, "r%.16g %s\n", d, vcdid_buf);
+ fstWritex(xc, wx_buf, wx_len);
+ }
+ }
+ }
+ }
+ }
+
+ sig_offs += xc->signal_lens[idx];
+ }
+
+ free(mu);
+ fstReaderFseeko(xc, xc->f, -((off_t)frame_clen), SEEK_CUR);
+ }
+ }
+
+ fstReaderFseeko(xc, xc->f, (off_t)frame_clen, SEEK_CUR); /* skip past compressed data */
+
+ vc_maxhandle = fstReaderVarint64(xc->f);
+ vc_start = ftello(xc->f); /* points to '!' character */
+ packtype = fgetc(xc->f);
+
+#ifdef FST_DEBUG
+ fprintf(stderr, "\tframe_uclen: %d, frame_clen: %d, frame_maxhandle: %d\n",
+ (int)frame_uclen, (int)frame_clen, (int)frame_maxhandle);
+ fprintf(stderr, "\tvc_maxhandle: %d, packtype: %c\n", (int)vc_maxhandle, packtype);
+#endif
+
+ indx_pntr = blkpos + seclen - 24 -tsec_clen -8;
+ fstReaderFseeko(xc, xc->f, indx_pntr, SEEK_SET);
+ chain_clen = fstReaderUint64(xc->f);
+ indx_pos = indx_pntr - chain_clen;
+#ifdef FST_DEBUG
+ fprintf(stderr, "\tindx_pos: %d (%d bytes)\n", (int)indx_pos, (int)chain_clen);
+#endif
+ chain_cmem = malloc(chain_clen);
+ if(!chain_cmem) goto block_err;
+ fstReaderFseeko(xc, xc->f, indx_pos, SEEK_SET);
+ fstFread(chain_cmem, chain_clen, 1, xc->f);
+
+ if(vc_maxhandle > vc_maxhandle_largest)
+ {
+ free(chain_table);
+ free(chain_table_lengths);
+
+ vc_maxhandle_largest = vc_maxhandle;
+ chain_table = calloc((vc_maxhandle+1), sizeof(off_t));
+ chain_table_lengths = calloc((vc_maxhandle+1), sizeof(uint32_t));
+ }
+
+ if(!chain_table || !chain_table_lengths) goto block_err;
+
+ pnt = chain_cmem;
+ idx = 0;
+ pval = 0;
+
+ if(sectype == FST_BL_VCDATA_DYN_ALIAS2)
+ {
+ uint32_t prev_alias = 0;
+
+ do {
+ int skiplen;
+
+ if(*pnt & 0x01)
+ {
+ int64_t shval = fstGetSVarint64(pnt, &skiplen) >> 1;
+ if(shval > 0)
+ {
+ pval = chain_table[idx] = pval + shval;
+ if(idx) { chain_table_lengths[pidx] = pval - chain_table[pidx]; }
+ pidx = idx++;
+ }
+ else if(shval < 0)
+ {
+ chain_table[idx] = 0; /* need to explicitly zero as calloc above might not run */
+ chain_table_lengths[idx] = prev_alias = shval; /* because during this loop iter would give stale data! */
+ idx++;
+ }
+ else
+ {
+ chain_table[idx] = 0; /* need to explicitly zero as calloc above might not run */
+ chain_table_lengths[idx] = prev_alias; /* because during this loop iter would give stale data! */
+ idx++;
+ }
+ }
+ else
+ {
+ uint64_t val = fstGetVarint32(pnt, &skiplen);
+
+ fstHandle loopcnt = val >> 1;
+ for(i=0;i<loopcnt;i++)
+ {
+ chain_table[idx++] = 0;
+ }
+ }
+
+ pnt += skiplen;
+ } while (pnt != (chain_cmem + chain_clen));
+ }
+ else
+ {
+ do {
+ int skiplen;
+ uint64_t val = fstGetVarint32(pnt, &skiplen);
+
+ if(!val)
+ {
+ pnt += skiplen;
+ val = fstGetVarint32(pnt, &skiplen);
+ chain_table[idx] = 0; /* need to explicitly zero as calloc above might not run */
+ chain_table_lengths[idx] = -val; /* because during this loop iter would give stale data! */
+ idx++;
+ }
+ else
+ if(val&1)
+ {
+ pval = chain_table[idx] = pval + (val >> 1);
+ if(idx) { chain_table_lengths[pidx] = pval - chain_table[pidx]; }
+ pidx = idx++;
+ }
+ else
+ {
+ fstHandle loopcnt = val >> 1;
+ for(i=0;i<loopcnt;i++)
+ {
+ chain_table[idx++] = 0;
+ }
+ }
+
+ pnt += skiplen;
+ } while (pnt != (chain_cmem + chain_clen));
+ }
+
+ chain_table[idx] = indx_pos - vc_start;
+ chain_table_lengths[pidx] = chain_table[idx] - chain_table[pidx];
+
+ for(i=0;i<idx;i++)
+ {
+ int32_t v32 = chain_table_lengths[i];
+ if((v32 < 0) && (!chain_table[i]))
+ {
+ v32 = -v32;
+ v32--;
+ if(((uint32_t)v32) < i) /* sanity check */
+ {
+ chain_table[i] = chain_table[v32];
+ chain_table_lengths[i] = chain_table_lengths[v32];
+ }
+ }
+ }
+
+#ifdef FST_DEBUG
+ fprintf(stderr, "\tdecompressed chain idx len: %"PRIu32"\n", idx);
+#endif
+
+ mc_mem_len = 16384;
+ mc_mem = malloc(mc_mem_len); /* buffer for compressed reads */
+
+ /* check compressed VC data */
+ if(idx > xc->maxhandle) idx = xc->maxhandle;
+ for(i=0;i<idx;i++)
+ {
+ if(chain_table[i])
+ {
+ int process_idx = i/8;
+ int process_bit = i&7;
+
+ if(xc->process_mask[process_idx]&(1<<process_bit))
+ {
+ int rc = Z_OK;
+ uint32_t val;
+ uint32_t skiplen;
+ uint32_t tdelta;
+
+ fstReaderFseeko(xc, xc->f, vc_start + chain_table[i], SEEK_SET);
+ val = fstReaderVarint32WithSkip(xc->f, &skiplen);
+ if(val)
+ {
+ unsigned char *mu = mem_for_traversal + traversal_mem_offs; /* uncomp: dst */
+ unsigned char *mc; /* comp: src */
+ unsigned long destlen = val;
+ unsigned long sourcelen = chain_table_lengths[i];
+
+ if(mc_mem_len < chain_table_lengths[i])
+ {
+ free(mc_mem);
+ mc_mem = malloc(mc_mem_len = chain_table_lengths[i]);
+ }
+ mc = mc_mem;
+
+ fstFread(mc, chain_table_lengths[i], 1, xc->f);
+
+ switch(packtype)
+ {
+ case '4': rc = (destlen == (unsigned long)LZ4_decompress_safe_partial((char *)mc, (char *)mu, sourcelen, destlen, destlen)) ? Z_OK : Z_DATA_ERROR;
+ break;
+ case 'F': fastlz_decompress(mc, sourcelen, mu, destlen); /* rc appears unreliable */
+ break;
+ default: rc = uncompress(mu, &destlen, mc, sourcelen);
+ break;
+ }
+
+ /* data to process is for(j=0;j<destlen;j++) in mu[j] */
+ headptr[i] = traversal_mem_offs;
+ length_remaining[i] = val;
+ traversal_mem_offs += val;
+ }
+ else
+ {
+ int destlen = chain_table_lengths[i] - skiplen;
+ unsigned char *mu = mem_for_traversal + traversal_mem_offs;
+ fstFread(mu, destlen, 1, xc->f);
+ /* data to process is for(j=0;j<destlen;j++) in mu[j] */
+ headptr[i] = traversal_mem_offs;
+ length_remaining[i] = destlen;
+ traversal_mem_offs += destlen;
+ }
+
+ if(rc != Z_OK)
+ {
+ printf("\tfac: %d clen: %d (rc=%d)\n", (int)i, (int)val, rc);
+ exit(255);
+ }
+
+ if(xc->signal_lens[i] == 1)
+ {
+ uint32_t vli = fstGetVarint32NoSkip(mem_for_traversal + headptr[i]);
+ uint32_t shcnt = 2 << (vli & 1);
+ tdelta = vli >> shcnt;
+ }
+ else
+ {
+ uint32_t vli = fstGetVarint32NoSkip(mem_for_traversal + headptr[i]);
+ tdelta = vli >> 1;
+ }
+
+ scatterptr[i] = tc_head[tdelta];
+ tc_head[tdelta] = i+1;
+ }
+ }
+ }
+
+ free(mc_mem); /* there is no usage below for this, no real need to clear out mc_mem or mc_mem_len */
+
+ for(i=0;i<tsec_nitems;i++)
+ {
+ uint32_t tdelta;
+ int skiplen, skiplen2;
+ uint32_t vli;
+
+ if(fv)
+ {
+ char wx_buf[32];
+ int wx_len;
+
+ if(time_table[i] != previous_time)
+ {
+ if(xc->limit_range_valid)
+ {
+ if(time_table[i] > xc->limit_range_end)
+ {
+ break;
+ }
+ }
+
+ wx_len = sprintf(wx_buf, "#%"PRIu64"\n", time_table[i]);
+ fstWritex(xc, wx_buf, wx_len);
+
+ if((xc->num_blackouts)&&(cur_blackout != xc->num_blackouts))
+ {
+ if(time_table[i] == xc->blackout_times[cur_blackout])
+ {
+ wx_len = sprintf(wx_buf, "$dump%s $end\n", (xc->blackout_activity[cur_blackout++]) ? "on" : "off");
+ fstWritex(xc, wx_buf, wx_len);
+ }
+ }
+ previous_time = time_table[i];
+ }
+ }
+
+ while(tc_head[i])
+ {
+ idx = tc_head[i] - 1;
+ vli = fstGetVarint32(mem_for_traversal + headptr[idx], &skiplen);
+
+ if(xc->signal_lens[idx] <= 1)
+ {
+ if(xc->signal_lens[idx] == 1)
+ {
+ unsigned char val;
+ if(!(vli & 1))
+ {
+ /* tdelta = vli >> 2; */ /* scan-build */
+ val = ((vli >> 1) & 1) | '0';
+ }
+ else
+ {
+ /* tdelta = vli >> 4; */ /* scan-build */
+ val = FST_RCV_STR[((vli >> 1) & 7)];
+ }
+
+ if(value_change_callback)
+ {
+ xc->temp_signal_value_buf[0] = val;
+ xc->temp_signal_value_buf[1] = 0;
+ value_change_callback(user_callback_data_pointer, time_table[i], idx+1, xc->temp_signal_value_buf);
+ }
+ else
+ {
+ if(fv)
+ {
+ char vcd_id[16];
+ int vcdid_len = fstVcdIDForFwrite(vcd_id+1, idx+1);
+
+ vcd_id[0] = val;
+ vcd_id[vcdid_len+1] = '\n';
+ fstWritex(xc, vcd_id, vcdid_len+2);
+ }
+ }
+ headptr[idx] += skiplen;
+ length_remaining[idx] -= skiplen;
+
+ tc_head[i] = scatterptr[idx];
+ scatterptr[idx] = 0;
+
+ if(length_remaining[idx])
+ {
+ int shamt;
+ vli = fstGetVarint32NoSkip(mem_for_traversal + headptr[idx]);
+ shamt = 2 << (vli & 1);
+ tdelta = vli >> shamt;
+
+ scatterptr[idx] = tc_head[i+tdelta];
+ tc_head[i+tdelta] = idx+1;
+ }
+ }
+ else
+ {
+ unsigned char *vdata;
+ uint32_t len;
+
+ vli = fstGetVarint32(mem_for_traversal + headptr[idx], &skiplen);
+ len = fstGetVarint32(mem_for_traversal + headptr[idx] + skiplen, &skiplen2);
+ /* tdelta = vli >> 1; */ /* scan-build */
+ skiplen += skiplen2;
+ vdata = mem_for_traversal + headptr[idx] + skiplen;
+
+ if(!(vli & 1))
+ {
+ if(value_change_callback_varlen)
+ {
+ value_change_callback_varlen(user_callback_data_pointer, time_table[i], idx+1, vdata, len);
+ }
+ else
+ {
+ if(fv)
+ {
+ char vcd_id[16];
+ int vcdid_len;
+
+ vcd_id[0] = 's';
+ fstWritex(xc, vcd_id, 1);
+
+ vcdid_len = fstVcdIDForFwrite(vcd_id+1, idx+1);
+ {
+ unsigned char *vesc = malloc(len*4 + 1);
+ int vlen = fstUtilityBinToEsc(vesc, vdata, len);
+ fstWritex(xc, vesc, vlen);
+ free(vesc);
+ }
+
+ vcd_id[0] = ' ';
+ vcd_id[vcdid_len + 1] = '\n';
+ fstWritex(xc, vcd_id, vcdid_len+2);
+ }
+ }
+ }
+
+ skiplen += len;
+ headptr[idx] += skiplen;
+ length_remaining[idx] -= skiplen;
+
+ tc_head[i] = scatterptr[idx];
+ scatterptr[idx] = 0;
+
+ if(length_remaining[idx])
+ {
+ vli = fstGetVarint32NoSkip(mem_for_traversal + headptr[idx]);
+ tdelta = vli >> 1;
+
+ scatterptr[idx] = tc_head[i+tdelta];
+ tc_head[i+tdelta] = idx+1;
+ }
+ }
+ }
+ else
+ {
+ uint32_t len = xc->signal_lens[idx];
+ unsigned char *vdata;
+
+ vli = fstGetVarint32(mem_for_traversal + headptr[idx], &skiplen);
+ /* tdelta = vli >> 1; */ /* scan-build */
+ vdata = mem_for_traversal + headptr[idx] + skiplen;
+
+ if(xc->signal_typs[idx] != FST_VT_VCD_REAL)
+ {
+ if(!(vli & 1))
+ {
+ int byte = 0;
+ int bit;
+ unsigned int j;
+
+ for(j=0;j<len;j++)
+ {
+ unsigned char ch;
+ byte = j/8;
+ bit = 7 - (j & 7);
+ ch = ((vdata[byte] >> bit) & 1) | '0';
+ xc->temp_signal_value_buf[j] = ch;
+ }
+ xc->temp_signal_value_buf[j] = 0;
+
+ if(value_change_callback)
+ {
+ value_change_callback(user_callback_data_pointer, time_table[i], idx+1, xc->temp_signal_value_buf);
+ }
+ else
+ {
+ if(fv) {
+ unsigned char ch_bp = (xc->signal_typs[idx] != FST_VT_VCD_PORT) ? 'b' : 'p';
+
+ fstWritex(xc, &ch_bp, 1);
+ fstWritex(xc, xc->temp_signal_value_buf, len);
+ }
+ }
+
+ len = byte+1;
+ }
+ else
+ {
+ if(value_change_callback)
+ {
+ memcpy(xc->temp_signal_value_buf, vdata, len);
+ xc->temp_signal_value_buf[len] = 0;
+ value_change_callback(user_callback_data_pointer, time_table[i], idx+1, xc->temp_signal_value_buf);
+ }
+ else
+ {
+ if(fv)
+ {
+ unsigned char ch_bp = (xc->signal_typs[idx] != FST_VT_VCD_PORT) ? 'b' : 'p';
+
+ fstWritex(xc, &ch_bp, 1);
+ fstWritex(xc, vdata, len);
+ }
+ }
+ }
+ }
+ else
+ {
+ double d;
+ unsigned char *clone_d /*= (unsigned char *)&d */; /* scan-build */
+ unsigned char buf[8];
+ unsigned char *srcdata;
+
+ if(!(vli & 1)) /* very rare case, but possible */
+ {
+ int bit;
+ int j;
+
+ for(j=0;j<8;j++)
+ {
+ unsigned char ch;
+ bit = 7 - (j & 7);
+ ch = ((vdata[0] >> bit) & 1) | '0';
+ buf[j] = ch;
+ }
+
+ len = 1;
+ srcdata = buf;
+ }
+ else
+ {
+ srcdata = vdata;
+ }
+
+ if(value_change_callback)
+ {
+ if(xc->native_doubles_for_cb)
+ {
+ if(xc->double_endian_match)
+ {
+ clone_d = srcdata;
+ }
+ else
+ {
+ int j;
+
+ clone_d = (unsigned char *)&d;
+ for(j=0;j<8;j++)
+ {
+ clone_d[j] = srcdata[7-j];
+ }
+ }
+ value_change_callback(user_callback_data_pointer, time_table[i], idx+1, clone_d);
+ }
+ else
+ {
+ clone_d = (unsigned char *)&d;
+ if(xc->double_endian_match)
+ {
+ memcpy(clone_d, srcdata, 8);
+ }
+ else
+ {
+ int j;
+
+ for(j=0;j<8;j++)
+ {
+ clone_d[j] = srcdata[7-j];
+ }
+ }
+ sprintf((char *)xc->temp_signal_value_buf, "%.16g", d);
+ value_change_callback(user_callback_data_pointer, time_table[i], idx+1, xc->temp_signal_value_buf);
+ }
+ }
+ else
+ {
+ if(fv)
+ {
+ char wx_buf[32];
+ int wx_len;
+
+ clone_d = (unsigned char *)&d;
+ if(xc->double_endian_match)
+ {
+ memcpy(clone_d, srcdata, 8);
+ }
+ else
+ {
+ int j;
+
+ for(j=0;j<8;j++)
+ {
+ clone_d[j] = srcdata[7-j];
+ }
+ }
+
+ wx_len = sprintf(wx_buf, "r%.16g", d);
+ fstWritex(xc, wx_buf, wx_len);
+ }
+ }
+ }
+
+ if(fv)
+ {
+ char vcd_id[16];
+ int vcdid_len = fstVcdIDForFwrite(vcd_id+1, idx+1);
+ vcd_id[0] = ' ';
+ vcd_id[vcdid_len+1] = '\n';
+ fstWritex(xc, vcd_id, vcdid_len+2);
+ }
+
+ skiplen += len;
+ headptr[idx] += skiplen;
+ length_remaining[idx] -= skiplen;
+
+ tc_head[i] = scatterptr[idx];
+ scatterptr[idx] = 0;
+
+ if(length_remaining[idx])
+ {
+ vli = fstGetVarint32NoSkip(mem_for_traversal + headptr[idx]);
+ tdelta = vli >> 1;
+
+ scatterptr[idx] = tc_head[i+tdelta];
+ tc_head[i+tdelta] = idx+1;
+ }
+ }
+ }
+ }
+
+block_err:
+ free(tc_head);
+ free(chain_cmem);
+ free(mem_for_traversal); mem_for_traversal = NULL;
+
+ secnum++;
+ if(secnum == xc->vc_section_count) break; /* in case file is growing, keep with original block count */
+ blkpos += seclen;
+ }
+
+if(mem_for_traversal) free(mem_for_traversal); /* scan-build */
+free(length_remaining);
+free(headptr);
+free(scatterptr);
+
+if(chain_table) free(chain_table);
+if(chain_table_lengths) free(chain_table_lengths);
+
+free(time_table);
+
+#ifndef FST_WRITEX_DISABLE
+if(fv)
+ {
+ fstWritex(xc, NULL, 0);
+ }
+#endif
+
+return(1);
+}
+
+
+/* rvat functions */
+
+static char *fstExtractRvatDataFromFrame(struct fstReaderContext *xc, fstHandle facidx, char *buf)
+{
+if(facidx >= xc->rvat_frame_maxhandle)
+ {
+ return(NULL);
+ }
+
+if(xc->signal_lens[facidx] == 1)
+ {
+ buf[0] = (char)xc->rvat_frame_data[xc->rvat_sig_offs[facidx]];
+ buf[1] = 0;
+ }
+ else
+ {
+ if(xc->signal_typs[facidx] != FST_VT_VCD_REAL)
+ {
+ memcpy(buf, xc->rvat_frame_data + xc->rvat_sig_offs[facidx], xc->signal_lens[facidx]);
+ buf[xc->signal_lens[facidx]] = 0;
+ }
+ else
+ {
+ double d;
+ unsigned char *clone_d = (unsigned char *)&d;
+ unsigned char *srcdata = xc->rvat_frame_data + xc->rvat_sig_offs[facidx];
+
+ if(xc->double_endian_match)
+ {
+ memcpy(clone_d, srcdata, 8);
+ }
+ else
+ {
+ int j;
+
+ for(j=0;j<8;j++)
+ {
+ clone_d[j] = srcdata[7-j];
+ }
+ }
+
+ sprintf((char *)buf, "%.16g", d);
+ }
+ }
+
+return(buf);
+}
+
+
+char *fstReaderGetValueFromHandleAtTime(void *ctx, uint64_t tim, fstHandle facidx, char *buf)
+{
+struct fstReaderContext *xc = (struct fstReaderContext *)ctx;
+off_t blkpos = 0, prev_blkpos;
+uint64_t beg_tim, end_tim, beg_tim2, end_tim2;
+int sectype;
+unsigned int secnum = 0;
+uint64_t seclen;
+uint64_t tsec_uclen = 0, tsec_clen = 0;
+uint64_t tsec_nitems;
+uint64_t frame_uclen, frame_clen;
+#ifdef FST_DEBUG
+uint64_t mem_required_for_traversal;
+#endif
+off_t indx_pntr, indx_pos;
+long chain_clen;
+unsigned char *chain_cmem;
+unsigned char *pnt;
+fstHandle idx, pidx=0, i;
+uint64_t pval;
+
+if((!xc) || (!facidx) || (facidx > xc->maxhandle) || (!buf) || (!xc->signal_lens[facidx-1]))
+ {
+ return(NULL);
+ }
+
+if(!xc->rvat_sig_offs)
+ {
+ uint32_t cur_offs = 0;
+
+ xc->rvat_sig_offs = calloc(xc->maxhandle, sizeof(uint32_t));
+ for(i=0;i<xc->maxhandle;i++)
+ {
+ xc->rvat_sig_offs[i] = cur_offs;
+ cur_offs += xc->signal_lens[i];
+ }
+ }
+
+if(xc->rvat_data_valid)
+ {
+ if((xc->rvat_beg_tim <= tim) && (tim <= xc->rvat_end_tim))
+ {
+ goto process_value;
+ }
+
+ fstReaderDeallocateRvatData(xc);
+ }
+
+xc->rvat_chain_pos_valid = 0;
+
+for(;;)
+ {
+ fstReaderFseeko(xc, xc->f, (prev_blkpos = blkpos), SEEK_SET);
+
+ sectype = fgetc(xc->f);
+ seclen = fstReaderUint64(xc->f);
+
+ if((sectype == EOF) || (sectype == FST_BL_SKIP) || (!seclen))
+ {
+ return(NULL); /* if this loop exits on break, it's successful */
+ }
+
+ blkpos++;
+ if((sectype != FST_BL_VCDATA) && (sectype != FST_BL_VCDATA_DYN_ALIAS) && (sectype != FST_BL_VCDATA_DYN_ALIAS2))
+ {
+ blkpos += seclen;
+ continue;
+ }
+
+ beg_tim = fstReaderUint64(xc->f);
+ end_tim = fstReaderUint64(xc->f);
+
+ if((beg_tim <= tim) && (tim <= end_tim))
+ {
+ if((tim == end_tim) && (tim != xc->end_time))
+ {
+ off_t cached_pos = ftello(xc->f);
+ fstReaderFseeko(xc, xc->f, blkpos, SEEK_SET);
+
+ sectype = fgetc(xc->f);
+ seclen = fstReaderUint64(xc->f);
+
+ beg_tim2 = fstReaderUint64(xc->f);
+ end_tim2 = fstReaderUint64(xc->f);
+
+ if(((sectype != FST_BL_VCDATA)&&(sectype != FST_BL_VCDATA_DYN_ALIAS)&&(sectype != FST_BL_VCDATA_DYN_ALIAS2)) || (!seclen) || (beg_tim2 != tim))
+ {
+ blkpos = prev_blkpos;
+ break;
+ }
+ beg_tim = beg_tim2;
+ end_tim = end_tim2;
+ fstReaderFseeko(xc, xc->f, cached_pos, SEEK_SET);
+ }
+ break;
+ }
+
+ blkpos += seclen;
+ secnum++;
+ }
+
+xc->rvat_beg_tim = beg_tim;
+xc->rvat_end_tim = end_tim;
+
+#ifdef FST_DEBUG
+mem_required_for_traversal =
+#endif
+ fstReaderUint64(xc->f);
+
+#ifdef FST_DEBUG
+fprintf(stderr, "rvat sec: %u seclen: %d begtim: %d endtim: %d\n",
+ secnum, (int)seclen, (int)beg_tim, (int)end_tim);
+fprintf(stderr, "\tmem_required_for_traversal: %d\n", (int)mem_required_for_traversal);
+#endif
+
+/* process time block */
+{
+unsigned char *ucdata;
+unsigned char *cdata;
+unsigned long destlen /* = tsec_uclen */; /* scan-build */
+unsigned long sourcelen /* = tsec_clen */; /* scan-build */
+int rc;
+unsigned char *tpnt;
+uint64_t tpval;
+unsigned int ti;
+
+fstReaderFseeko(xc, xc->f, blkpos + seclen - 24, SEEK_SET);
+tsec_uclen = fstReaderUint64(xc->f);
+tsec_clen = fstReaderUint64(xc->f);
+tsec_nitems = fstReaderUint64(xc->f);
+#ifdef FST_DEBUG
+fprintf(stderr, "\ttime section unc: %d, com: %d (%d items)\n",
+ (int)tsec_uclen, (int)tsec_clen, (int)tsec_nitems);
+#endif
+ucdata = malloc(tsec_uclen);
+destlen = tsec_uclen;
+sourcelen = tsec_clen;
+
+fstReaderFseeko(xc, xc->f, -24 - ((off_t)tsec_clen), SEEK_CUR);
+if(tsec_uclen != tsec_clen)
+ {
+ cdata = malloc(tsec_clen);
+ fstFread(cdata, tsec_clen, 1, xc->f);
+
+ rc = uncompress(ucdata, &destlen, cdata, sourcelen);
+
+ if(rc != Z_OK)
+ {
+ printf("tsec uncompress rc = %d\n", rc);
+ exit(255);
+ }
+
+ free(cdata);
+ }
+ else
+ {
+ fstFread(ucdata, tsec_uclen, 1, xc->f);
+ }
+
+xc->rvat_time_table = calloc(tsec_nitems, sizeof(uint64_t));
+tpnt = ucdata;
+tpval = 0;
+for(ti=0;ti<tsec_nitems;ti++)
+ {
+ int skiplen;
+ uint64_t val = fstGetVarint64(tpnt, &skiplen);
+ tpval = xc->rvat_time_table[ti] = tpval + val;
+ tpnt += skiplen;
+ }
+
+free(ucdata);
+}
+
+fstReaderFseeko(xc, xc->f, blkpos+32, SEEK_SET);
+
+frame_uclen = fstReaderVarint64(xc->f);
+frame_clen = fstReaderVarint64(xc->f);
+xc->rvat_frame_maxhandle = fstReaderVarint64(xc->f);
+xc->rvat_frame_data = malloc(frame_uclen);
+
+if(frame_uclen == frame_clen)
+ {
+ fstFread(xc->rvat_frame_data, frame_uclen, 1, xc->f);
+ }
+ else
+ {
+ unsigned char *mc = malloc(frame_clen);
+ int rc;
+
+ unsigned long destlen = frame_uclen;
+ unsigned long sourcelen = frame_clen;
+
+ fstFread(mc, sourcelen, 1, xc->f);
+ rc = uncompress(xc->rvat_frame_data, &destlen, mc, sourcelen);
+ if(rc != Z_OK)
+ {
+ printf("decompress rc: %d\n", rc);
+ exit(255);
+ }
+ free(mc);
+ }
+
+xc->rvat_vc_maxhandle = fstReaderVarint64(xc->f);
+xc->rvat_vc_start = ftello(xc->f); /* points to '!' character */
+
+#ifdef FST_DEBUG
+fprintf(stderr, "\tframe_uclen: %d, frame_clen: %d, frame_maxhandle: %d\n",
+ (int)frame_uclen, (int)frame_clen, (int)xc->rvat_frame_maxhandle);
+fprintf(stderr, "\tvc_maxhandle: %d\n", (int)xc->rvat_vc_maxhandle);
+#endif
+
+indx_pntr = blkpos + seclen - 24 -tsec_clen -8;
+fstReaderFseeko(xc, xc->f, indx_pntr, SEEK_SET);
+chain_clen = fstReaderUint64(xc->f);
+indx_pos = indx_pntr - chain_clen;
+#ifdef FST_DEBUG
+fprintf(stderr, "\tindx_pos: %d (%d bytes)\n", (int)indx_pos, (int)chain_clen);
+#endif
+chain_cmem = malloc(chain_clen);
+fstReaderFseeko(xc, xc->f, indx_pos, SEEK_SET);
+fstFread(chain_cmem, chain_clen, 1, xc->f);
+
+xc->rvat_chain_table = calloc((xc->rvat_vc_maxhandle+1), sizeof(off_t));
+xc->rvat_chain_table_lengths = calloc((xc->rvat_vc_maxhandle+1), sizeof(uint32_t));
+
+pnt = chain_cmem;
+idx = 0;
+pval = 0;
+do
+ {
+ int skiplen;
+ uint64_t val = fstGetVarint32(pnt, &skiplen);
+
+ if(!val)
+ {
+ pnt += skiplen;
+ val = fstGetVarint32(pnt, &skiplen);
+ xc->rvat_chain_table[idx] = 0;
+ xc->rvat_chain_table_lengths[idx] = -val;
+ idx++;
+ }
+ else
+ if(val&1)
+ {
+ pval = xc->rvat_chain_table[idx] = pval + (val >> 1);
+ if(idx) { xc->rvat_chain_table_lengths[pidx] = pval - xc->rvat_chain_table[pidx]; }
+ pidx = idx++;
+ }
+ else
+ {
+ fstHandle loopcnt = val >> 1;
+ for(i=0;i<loopcnt;i++)
+ {
+ xc->rvat_chain_table[idx++] = 0;
+ }
+ }
+
+ pnt += skiplen;
+ } while (pnt != (chain_cmem + chain_clen));
+
+free(chain_cmem);
+xc->rvat_chain_table[idx] = indx_pos - xc->rvat_vc_start;
+xc->rvat_chain_table_lengths[pidx] = xc->rvat_chain_table[idx] - xc->rvat_chain_table[pidx];
+
+for(i=0;i<idx;i++)
+ {
+ int32_t v32 = xc->rvat_chain_table_lengths[i];
+ if((v32 < 0) && (!xc->rvat_chain_table[i]))
+ {
+ v32 = -v32;
+ v32--;
+ if(((uint32_t)v32) < i) /* sanity check */
+ {
+ xc->rvat_chain_table[i] = xc->rvat_chain_table[v32];
+ xc->rvat_chain_table_lengths[i] = xc->rvat_chain_table_lengths[v32];
+ }
+ }
+ }
+
+#ifdef FST_DEBUG
+fprintf(stderr, "\tdecompressed chain idx len: %"PRIu32"\n", idx);
+#endif
+
+xc->rvat_data_valid = 1;
+
+/* all data at this point is loaded or resident in fst cache, process and return appropriate value */
+process_value:
+if(facidx > xc->rvat_vc_maxhandle)
+ {
+ return(NULL);
+ }
+
+facidx--; /* scale down for array which starts at zero */
+
+
+if(((tim == xc->rvat_beg_tim)&&(!xc->rvat_chain_table[facidx])) || (!xc->rvat_chain_table[facidx]))
+ {
+ return(fstExtractRvatDataFromFrame(xc, facidx, buf));
+ }
+
+if(facidx != xc->rvat_chain_facidx)
+ {
+ if(xc->rvat_chain_mem)
+ {
+ free(xc->rvat_chain_mem);
+ xc->rvat_chain_mem = NULL;
+
+ xc->rvat_chain_pos_valid = 0;
+ }
+ }
+
+if(!xc->rvat_chain_mem)
+ {
+ uint32_t skiplen;
+ fstReaderFseeko(xc, xc->f, xc->rvat_vc_start + xc->rvat_chain_table[facidx], SEEK_SET);
+ xc->rvat_chain_len = fstReaderVarint32WithSkip(xc->f, &skiplen);
+ if(xc->rvat_chain_len)
+ {
+ unsigned char *mu = malloc(xc->rvat_chain_len);
+ unsigned char *mc = malloc(xc->rvat_chain_table_lengths[facidx]);
+ unsigned long destlen = xc->rvat_chain_len;
+ unsigned long sourcelen = xc->rvat_chain_table_lengths[facidx];
+ int rc;
+
+ fstFread(mc, xc->rvat_chain_table_lengths[facidx], 1, xc->f);
+ rc = uncompress(mu, &destlen, mc, sourcelen);
+ free(mc);
+
+ if(rc != Z_OK)
+ {
+ printf("\tclen: %d (rc=%d)\n", (int)xc->rvat_chain_len, rc);
+ exit(255);
+ }
+
+ /* data to process is for(j=0;j<destlen;j++) in mu[j] */
+ xc->rvat_chain_mem = mu;
+ }
+ else
+ {
+ int destlen = xc->rvat_chain_table_lengths[facidx] - skiplen;
+ unsigned char *mu = malloc(xc->rvat_chain_len = destlen);
+ fstFread(mu, destlen, 1, xc->f);
+ /* data to process is for(j=0;j<destlen;j++) in mu[j] */
+ xc->rvat_chain_mem = mu;
+ }
+
+ xc->rvat_chain_facidx = facidx;
+ }
+
+/* process value chain here */
+
+{
+uint32_t tidx = 0, ptidx = 0;
+uint32_t tdelta;
+int skiplen;
+unsigned int iprev = xc->rvat_chain_len;
+uint32_t pvli = 0;
+int pskip = 0;
+
+if((xc->rvat_chain_pos_valid)&&(tim >= xc->rvat_chain_pos_time))
+ {
+ i = xc->rvat_chain_pos_idx;
+ tidx = xc->rvat_chain_pos_tidx;
+ }
+ else
+ {
+ i = 0;
+ tidx = 0;
+ xc->rvat_chain_pos_time = xc->rvat_beg_tim;
+ }
+
+if(xc->signal_lens[facidx] == 1)
+ {
+ while(i<xc->rvat_chain_len)
+ {
+ uint32_t vli = fstGetVarint32(xc->rvat_chain_mem + i, &skiplen);
+ uint32_t shcnt = 2 << (vli & 1);
+ tdelta = vli >> shcnt;
+
+ if(xc->rvat_time_table[tidx + tdelta] <= tim)
+ {
+ iprev = i;
+ pvli = vli;
+ ptidx = tidx;
+ /* pskip = skiplen; */ /* scan-build */
+
+ tidx += tdelta;
+ i+=skiplen;
+ }
+ else
+ {
+ break;
+ }
+ }
+ if(iprev != xc->rvat_chain_len)
+ {
+ xc->rvat_chain_pos_tidx = ptidx;
+ xc->rvat_chain_pos_idx = iprev;
+ xc->rvat_chain_pos_time = tim;
+ xc->rvat_chain_pos_valid = 1;
+
+ if(!(pvli & 1))
+ {
+ buf[0] = ((pvli >> 1) & 1) | '0';
+ }
+ else
+ {
+ buf[0] = FST_RCV_STR[((pvli >> 1) & 7)];
+ }
+ buf[1] = 0;
+ return(buf);
+ }
+ else
+ {
+ return(fstExtractRvatDataFromFrame(xc, facidx, buf));
+ }
+ }
+ else
+ {
+ while(i<xc->rvat_chain_len)
+ {
+ uint32_t vli = fstGetVarint32(xc->rvat_chain_mem + i, &skiplen);
+ tdelta = vli >> 1;
+
+ if(xc->rvat_time_table[tidx + tdelta] <= tim)
+ {
+ iprev = i;
+ pvli = vli;
+ ptidx = tidx;
+ pskip = skiplen;
+
+ tidx += tdelta;
+ i+=skiplen;
+
+ if(!(pvli & 1))
+ {
+ i+=((xc->signal_lens[facidx]+7)/8);
+ }
+ else
+ {
+ i+=xc->signal_lens[facidx];
+ }
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ if(iprev != xc->rvat_chain_len)
+ {
+ unsigned char *vdata = xc->rvat_chain_mem + iprev + pskip;
+
+ xc->rvat_chain_pos_tidx = ptidx;
+ xc->rvat_chain_pos_idx = iprev;
+ xc->rvat_chain_pos_time = tim;
+ xc->rvat_chain_pos_valid = 1;
+
+ if(xc->signal_typs[facidx] != FST_VT_VCD_REAL)
+ {
+ if(!(pvli & 1))
+ {
+ int byte = 0;
+ int bit;
+ unsigned int j;
+
+ for(j=0;j<xc->signal_lens[facidx];j++)
+ {
+ unsigned char ch;
+ byte = j/8;
+ bit = 7 - (j & 7);
+ ch = ((vdata[byte] >> bit) & 1) | '0';
+ buf[j] = ch;
+ }
+ buf[j] = 0;
+
+ return(buf);
+ }
+ else
+ {
+ memcpy(buf, vdata, xc->signal_lens[facidx]);
+ buf[xc->signal_lens[facidx]] = 0;
+ return(buf);
+ }
+ }
+ else
+ {
+ double d;
+ unsigned char *clone_d = (unsigned char *)&d;
+ unsigned char bufd[8];
+ unsigned char *srcdata;
+
+ if(!(pvli & 1)) /* very rare case, but possible */
+ {
+ int bit;
+ int j;
+
+ for(j=0;j<8;j++)
+ {
+ unsigned char ch;
+ bit = 7 - (j & 7);
+ ch = ((vdata[0] >> bit) & 1) | '0';
+ bufd[j] = ch;
+ }
+
+ srcdata = bufd;
+ }
+ else
+ {
+ srcdata = vdata;
+ }
+
+ if(xc->double_endian_match)
+ {
+ memcpy(clone_d, srcdata, 8);
+ }
+ else
+ {
+ int j;
+
+ for(j=0;j<8;j++)
+ {
+ clone_d[j] = srcdata[7-j];
+ }
+ }
+
+ sprintf(buf, "r%.16g", d);
+ return(buf);
+ }
+ }
+ else
+ {
+ return(fstExtractRvatDataFromFrame(xc, facidx, buf));
+ }
+ }
+}
+
+/* return(NULL); */
+}
+
+
+
+/**********************************************************************/
+#ifndef _WAVE_HAVE_JUDY
+
+/***********************/
+/*** ***/
+/*** jenkins hash ***/
+/*** ***/
+/***********************/
+
+/*
+--------------------------------------------------------------------
+mix -- mix 3 32-bit values reversibly.
+For every delta with one or two bits set, and the deltas of all three
+ high bits or all three low bits, whether the original value of a,b,c
+ is almost all zero or is uniformly distributed,
+* If mix() is run forward or backward, at least 32 bits in a,b,c
+ have at least 1/4 probability of changing.
+* If mix() is run forward, every bit of c will change between 1/3 and
+ 2/3 of the time. (Well, 22/100 and 78/100 for some 2-bit deltas.)
+mix() was built out of 36 single-cycle latency instructions in a
+ structure that could supported 2x parallelism, like so:
+ a -= b;
+ a -= c; x = (c>>13);
+ b -= c; a ^= x;
+ b -= a; x = (a<<8);
+ c -= a; b ^= x;
+ c -= b; x = (b>>13);
+ ...
+ Unfortunately, superscalar Pentiums and Sparcs can't take advantage
+ of that parallelism. They've also turned some of those single-cycle
+ latency instructions into multi-cycle latency instructions. Still,
+ this is the fastest good hash I could find. There were about 2^^68
+ to choose from. I only looked at a billion or so.
+--------------------------------------------------------------------
+*/
+#define mix(a,b,c) \
+{ \
+ a -= b; a -= c; a ^= (c>>13); \
+ b -= c; b -= a; b ^= (a<<8); \
+ c -= a; c -= b; c ^= (b>>13); \
+ a -= b; a -= c; a ^= (c>>12); \
+ b -= c; b -= a; b ^= (a<<16); \
+ c -= a; c -= b; c ^= (b>>5); \
+ a -= b; a -= c; a ^= (c>>3); \
+ b -= c; b -= a; b ^= (a<<10); \
+ c -= a; c -= b; c ^= (b>>15); \
+}
+
+/*
+--------------------------------------------------------------------
+j_hash() -- hash a variable-length key into a 32-bit value
+ k : the key (the unaligned variable-length array of bytes)
+ len : the length of the key, counting by bytes
+ initval : can be any 4-byte value
+Returns a 32-bit value. Every bit of the key affects every bit of
+the return value. Every 1-bit and 2-bit delta achieves avalanche.
+About 6*len+35 instructions.
+
+The best hash table sizes are powers of 2. There is no need to do
+mod a prime (mod is sooo slow!). If you need less than 32 bits,
+use a bitmask. For example, if you need only 10 bits, do
+ h = (h & hashmask(10));
+In which case, the hash table should have hashsize(10) elements.
+
+If you are hashing n strings (uint8_t **)k, do it like this:
+ for (i=0, h=0; i<n; ++i) h = hash( k[i], len[i], h);
+
+By Bob Jenkins, 1996. bob_jenkins@burtleburtle.net. You may use this
+code any way you wish, private, educational, or commercial. It's free.
+
+See http://burtleburtle.net/bob/hash/evahash.html
+Use for hash table lookup, or anything where one collision in 2^^32 is
+acceptable. Do NOT use for cryptographic purposes.
+--------------------------------------------------------------------
+*/
+
+static uint32_t j_hash(const uint8_t *k, uint32_t length, uint32_t initval)
+{
+ uint32_t a,b,c,len;
+
+ /* Set up the internal state */
+ len = length;
+ a = b = 0x9e3779b9; /* the golden ratio; an arbitrary value */
+ c = initval; /* the previous hash value */
+
+ /*---------------------------------------- handle most of the key */
+ while (len >= 12)
+ {
+ a += (k[0] +((uint32_t)k[1]<<8) +((uint32_t)k[2]<<16) +((uint32_t)k[3]<<24));
+ b += (k[4] +((uint32_t)k[5]<<8) +((uint32_t)k[6]<<16) +((uint32_t)k[7]<<24));
+ c += (k[8] +((uint32_t)k[9]<<8) +((uint32_t)k[10]<<16)+((uint32_t)k[11]<<24));
+ mix(a,b,c);
+ k += 12; len -= 12;
+ }
+
+ /*------------------------------------- handle the last 11 bytes */
+ c += length;
+ switch(len) /* all the case statements fall through */
+ {
+ case 11: c+=((uint32_t)k[10]<<24);
+ case 10: c+=((uint32_t)k[9]<<16);
+ case 9 : c+=((uint32_t)k[8]<<8);
+ /* the first byte of c is reserved for the length */
+ case 8 : b+=((uint32_t)k[7]<<24);
+ case 7 : b+=((uint32_t)k[6]<<16);
+ case 6 : b+=((uint32_t)k[5]<<8);
+ case 5 : b+=k[4];
+ case 4 : a+=((uint32_t)k[3]<<24);
+ case 3 : a+=((uint32_t)k[2]<<16);
+ case 2 : a+=((uint32_t)k[1]<<8);
+ case 1 : a+=k[0];
+ /* case 0: nothing left to add */
+ }
+ mix(a,b,c);
+ /*-------------------------------------------- report the result */
+ return(c);
+}
+
+/********************************************************************/
+
+/***************************/
+/*** ***/
+/*** judy HS emulation ***/
+/*** ***/
+/***************************/
+
+struct collchain_t
+{
+struct collchain_t *next;
+void *payload;
+uint32_t fullhash, length;
+unsigned char mem[1];
+};
+
+
+void **JenkinsIns(void *base_i, const unsigned char *mem, uint32_t length, uint32_t hashmask)
+{
+struct collchain_t ***base = (struct collchain_t ***)base_i;
+uint32_t hf, h;
+struct collchain_t **ar;
+struct collchain_t *chain, *pchain;
+
+if(!*base)
+ {
+ *base = calloc(1, (hashmask + 1) * sizeof(void *));
+ }
+ar = *base;
+
+h = (hf = j_hash(mem, length, length)) & hashmask;
+pchain = chain = ar[h];
+while(chain)
+ {
+ if((chain->fullhash == hf) && (chain->length == length) && !memcmp(chain->mem, mem, length))
+ {
+ if(pchain != chain) /* move hit to front */
+ {
+ pchain->next = chain->next;
+ chain->next = ar[h];
+ ar[h] = chain;
+ }
+ return(&(chain->payload));
+ }
+
+ pchain = chain;
+ chain = chain->next;
+ }
+
+chain = calloc(1, sizeof(struct collchain_t) + length - 1);
+memcpy(chain->mem, mem, length);
+chain->fullhash = hf;
+chain->length = length;
+chain->next = ar[h];
+ar[h] = chain;
+return(&(chain->payload));
+}
+
+
+void JenkinsFree(void *base_i, uint32_t hashmask)
+{
+struct collchain_t ***base = (struct collchain_t ***)base_i;
+uint32_t h;
+struct collchain_t **ar;
+struct collchain_t *chain, *chain_next;
+
+if(base && *base)
+ {
+ ar = *base;
+ for(h=0;h<=hashmask;h++)
+ {
+ chain = ar[h];
+ while(chain)
+ {
+ chain_next = chain->next;
+ free(chain);
+ chain = chain_next;
+ }
+ }
+
+ free(*base);
+ *base = NULL;
+ }
+}
+
+#endif
+
+/**********************************************************************/
+
+/************************/
+/*** ***/
+/*** utility function ***/
+/*** ***/
+/************************/
+
+int fstUtilityBinToEsc(unsigned char *d, unsigned char *s, int len)
+{
+unsigned char *src = s;
+unsigned char *dst = d;
+unsigned char val;
+int i;
+
+for(i=0;i<len;i++)
+ {
+ switch(src[i])
+ {
+ case '\a': *(dst++) = '\\'; *(dst++) = 'a'; break;
+ case '\b': *(dst++) = '\\'; *(dst++) = 'b'; break;
+ case '\f': *(dst++) = '\\'; *(dst++) = 'f'; break;
+ case '\n': *(dst++) = '\\'; *(dst++) = 'n'; break;
+ case '\r': *(dst++) = '\\'; *(dst++) = 'r'; break;
+ case '\t': *(dst++) = '\\'; *(dst++) = 't'; break;
+ case '\v': *(dst++) = '\\'; *(dst++) = 'v'; break;
+ case '\'': *(dst++) = '\\'; *(dst++) = '\''; break;
+ case '\"': *(dst++) = '\\'; *(dst++) = '\"'; break;
+ case '\\': *(dst++) = '\\'; *(dst++) = '\\'; break;
+ case '\?': *(dst++) = '\\'; *(dst++) = '\?'; break;
+ default: if((src[i] > ' ') && (src[i] <= '~')) /* no white spaces in output */
+ {
+ *(dst++) = src[i];
+ }
+ else
+ {
+ val = src[i];
+ *(dst++) = '\\';
+ *(dst++) = (val/64) + '0'; val = val & 63;
+ *(dst++) = (val/8) + '0'; val = val & 7;
+ *(dst++) = (val) + '0';
+ }
+ break;
+ }
+ }
+
+return(dst - d);
+}
+
+
+/*
+ * this overwrites the original string if the destination pointer is NULL
+ */
+int fstUtilityEscToBin(unsigned char *d, unsigned char *s, int len)
+{
+unsigned char *src = s;
+unsigned char *dst = (!d) ? s : (s = d);
+unsigned char val[3];
+int i;
+
+for(i=0;i<len;i++)
+ {
+ if(src[i] != '\\')
+ {
+ *(dst++) = src[i];
+ }
+ else
+ {
+ switch(src[++i])
+ {
+ case 'a': *(dst++) = '\a'; break;
+ case 'b': *(dst++) = '\b'; break;
+ case 'f': *(dst++) = '\f'; break;
+ case 'n': *(dst++) = '\n'; break;
+ case 'r': *(dst++) = '\r'; break;
+ case 't': *(dst++) = '\t'; break;
+ case 'v': *(dst++) = '\v'; break;
+ case '\'': *(dst++) = '\''; break;
+ case '\"': *(dst++) = '\"'; break;
+ case '\\': *(dst++) = '\\'; break;
+ case '\?': *(dst++) = '\?'; break;
+
+ case 'x': val[0] = toupper(src[++i]);
+ val[1] = toupper(src[++i]);
+ val[0] = ((val[0]>='A')&&(val[0]<='F')) ? (val[0] - 'A' + 10) : (val[0] - '0');
+ val[1] = ((val[1]>='A')&&(val[1]<='F')) ? (val[1] - 'A' + 10) : (val[1] - '0');
+ *(dst++) = val[0] * 16 + val[1];
+ break;
+
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7': val[0] = src[ i] - '0';
+ val[1] = src[++i] - '0';
+ val[2] = src[++i] - '0';
+ *(dst++) = val[0] * 64 + val[1] * 8 + val[2];
+ break;
+
+ default: *(dst++) = src[i]; break;
+ }
+ }
+ }
+
+return(dst - s);
+}
diff --git a/src/grt/fst/fstapi.h b/src/grt/fst/fstapi.h
new file mode 100644
index 000000000..83daac4b0
--- /dev/null
+++ b/src/grt/fst/fstapi.h
@@ -0,0 +1,426 @@
+/*
+ * Copyright (c) 2009-2014 Tony Bybell.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef FST_API_H
+#define FST_API_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <zlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <time.h>
+
+#define FST_RDLOAD "FSTLOAD | "
+
+typedef uint32_t fstHandle;
+
+enum fstWriterPackType {
+ FST_WR_PT_ZLIB = 0,
+ FST_WR_PT_FASTLZ = 1,
+ FST_WR_PT_LZ4 = 2
+};
+
+enum fstFileType {
+ FST_FT_MIN = 0,
+
+ FST_FT_VERILOG = 0,
+ FST_FT_VHDL = 1,
+ FST_FT_VERILOG_VHDL = 2,
+
+ FST_FT_MAX = 2
+};
+
+enum fstBlockType {
+ FST_BL_HDR = 0,
+ FST_BL_VCDATA = 1,
+ FST_BL_BLACKOUT = 2,
+ FST_BL_GEOM = 3,
+ FST_BL_HIER = 4,
+ FST_BL_VCDATA_DYN_ALIAS = 5,
+ FST_BL_HIER_LZ4 = 6,
+ FST_BL_HIER_LZ4DUO = 7,
+ FST_BL_VCDATA_DYN_ALIAS2 = 8,
+
+ FST_BL_ZWRAPPER = 254, /* indicates that whole trace is gz wrapped */
+ FST_BL_SKIP = 255 /* used while block is being written */
+};
+
+enum fstScopeType {
+ FST_ST_MIN = 0,
+
+ FST_ST_VCD_MODULE = 0,
+ FST_ST_VCD_TASK = 1,
+ FST_ST_VCD_FUNCTION = 2,
+ FST_ST_VCD_BEGIN = 3,
+ FST_ST_VCD_FORK = 4,
+ FST_ST_VCD_GENERATE = 5,
+ FST_ST_VCD_STRUCT = 6,
+ FST_ST_VCD_UNION = 7,
+ FST_ST_VCD_CLASS = 8,
+ FST_ST_VCD_INTERFACE = 9,
+ FST_ST_VCD_PACKAGE = 10,
+ FST_ST_VCD_PROGRAM = 11,
+
+ FST_ST_VHDL_ARCHITECTURE = 12,
+ FST_ST_VHDL_PROCEDURE = 13,
+ FST_ST_VHDL_FUNCTION = 14,
+ FST_ST_VHDL_RECORD = 15,
+ FST_ST_VHDL_PROCESS = 16,
+ FST_ST_VHDL_BLOCK = 17,
+ FST_ST_VHDL_FOR_GENERATE = 18,
+ FST_ST_VHDL_IF_GENERATE = 19,
+ FST_ST_VHDL_GENERATE = 20,
+ FST_ST_VHDL_PACKAGE = 21,
+
+ FST_ST_MAX = 21,
+
+ FST_ST_GEN_ATTRBEGIN = 252,
+ FST_ST_GEN_ATTREND = 253,
+
+ FST_ST_VCD_SCOPE = 254,
+ FST_ST_VCD_UPSCOPE = 255
+};
+
+enum fstVarType {
+ FST_VT_MIN = 0, /* start of vartypes */
+
+ FST_VT_VCD_EVENT = 0,
+ FST_VT_VCD_INTEGER = 1,
+ FST_VT_VCD_PARAMETER = 2,
+ FST_VT_VCD_REAL = 3,
+ FST_VT_VCD_REAL_PARAMETER = 4,
+ FST_VT_VCD_REG = 5,
+ FST_VT_VCD_SUPPLY0 = 6,
+ FST_VT_VCD_SUPPLY1 = 7,
+ FST_VT_VCD_TIME = 8,
+ FST_VT_VCD_TRI = 9,
+ FST_VT_VCD_TRIAND = 10,
+ FST_VT_VCD_TRIOR = 11,
+ FST_VT_VCD_TRIREG = 12,
+ FST_VT_VCD_TRI0 = 13,
+ FST_VT_VCD_TRI1 = 14,
+ FST_VT_VCD_WAND = 15,
+ FST_VT_VCD_WIRE = 16,
+ FST_VT_VCD_WOR = 17,
+ FST_VT_VCD_PORT = 18,
+ FST_VT_VCD_SPARRAY = 19, /* used to define the rownum (index) port for a sparse array */
+ FST_VT_VCD_REALTIME = 20,
+
+ FST_VT_GEN_STRING = 21, /* generic string type (max len is defined dynamically via fstWriterEmitVariableLengthValueChange) */
+
+ FST_VT_SV_BIT = 22,
+ FST_VT_SV_LOGIC = 23,
+ FST_VT_SV_INT = 24, /* declare as size = 32 */
+ FST_VT_SV_SHORTINT = 25, /* declare as size = 16 */
+ FST_VT_SV_LONGINT = 26, /* declare as size = 64 */
+ FST_VT_SV_BYTE = 27, /* declare as size = 8 */
+ FST_VT_SV_ENUM = 28, /* declare as appropriate type range */
+ FST_VT_SV_SHORTREAL = 29, /* declare and emit same as FST_VT_VCD_REAL (needs to be emitted as double, not a float) */
+
+ FST_VT_MAX = 29 /* end of vartypes */
+};
+
+enum fstVarDir {
+ FST_VD_MIN = 0,
+
+ FST_VD_IMPLICIT = 0,
+ FST_VD_INPUT = 1,
+ FST_VD_OUTPUT = 2,
+ FST_VD_INOUT = 3,
+ FST_VD_BUFFER = 4,
+ FST_VD_LINKAGE = 5,
+
+ FST_VD_MAX = 5
+};
+
+enum fstHierType {
+ FST_HT_MIN = 0,
+
+ FST_HT_SCOPE = 0,
+ FST_HT_UPSCOPE = 1,
+ FST_HT_VAR = 2,
+ FST_HT_ATTRBEGIN = 3,
+ FST_HT_ATTREND = 4,
+
+ FST_HT_MAX = 4
+};
+
+enum fstAttrType {
+ FST_AT_MIN = 0,
+
+ FST_AT_MISC = 0, /* self-contained: does not need matching FST_HT_ATTREND */
+ FST_AT_ARRAY = 1,
+ FST_AT_ENUM = 2,
+ FST_AT_PACK = 3,
+
+ FST_AT_MAX = 3
+};
+
+enum fstMiscType {
+ FST_MT_MIN = 0,
+
+ FST_MT_COMMENT = 0, /* use fstWriterSetComment() to emit */
+ FST_MT_ENVVAR = 1, /* use fstWriterSetEnvVar() to emit */
+ FST_MT_SUPVAR = 2, /* use fstWriterCreateVar2() to emit */
+ FST_MT_PATHNAME = 3, /* reserved for fstWriterSetSourceStem() string -> number management */
+ FST_MT_SOURCESTEM = 4, /* use fstWriterSetSourceStem() to emit */
+ FST_MT_SOURCEISTEM = 5, /* use fstWriterSetSourceInstantiationStem() to emit */
+ FST_MT_UNKNOWN = 6,
+
+ FST_MT_MAX = 6
+};
+
+enum fstArrayType {
+ FST_AR_MIN = 0,
+
+ FST_AR_NONE = 0,
+ FST_AR_UNPACKED = 1,
+ FST_AR_PACKED = 2,
+ FST_AR_SPARSE = 3,
+
+ FST_AR_MAX = 3
+};
+
+enum fstEnumValueType {
+ FST_EV_SV_INTEGER = 0,
+ FST_EV_SV_BIT = 1,
+ FST_EV_SV_LOGIC = 2,
+ FST_EV_SV_INT = 3,
+ FST_EV_SV_SHORTINT = 4,
+ FST_EV_SV_LONGINT = 5,
+ FST_EV_SV_BYTE = 6,
+ FST_EV_SV_UNSIGNED_INTEGER = 7,
+ FST_EV_SV_UNSIGNED_BIT = 8,
+ FST_EV_SV_UNSIGNED_LOGIC = 9,
+ FST_EV_SV_UNSIGNED_INT = 10,
+ FST_EV_SV_UNSIGNED_SHORTINT = 11,
+ FST_EV_SV_UNSIGNED_LONGINT = 12,
+ FST_EV_SV_UNSIGNED_BYTE = 13,
+
+ FST_EV_MAX = 13
+};
+
+enum fstPackType {
+ FST_PT_NONE = 0,
+ FST_PT_UNPACKED = 1,
+ FST_PT_PACKED = 2,
+ FST_PT_TAGGED_PACKED = 3,
+
+ FST_PT_MAX = 3
+};
+
+enum fstSupplementalVarType {
+ FST_SVT_MIN = 0,
+
+ FST_SVT_NONE = 0,
+
+ FST_SVT_VHDL_SIGNAL = 1,
+ FST_SVT_VHDL_VARIABLE = 2,
+ FST_SVT_VHDL_CONSTANT = 3,
+ FST_SVT_VHDL_FILE = 4,
+ FST_SVT_VHDL_MEMORY = 5,
+
+ FST_SVT_MAX = 5,
+};
+
+enum fstSupplementalDataType {
+ FST_SDT_MIN = 0,
+
+ FST_SDT_NONE = 0,
+
+ FST_SDT_VHDL_BOOLEAN = 1,
+ FST_SDT_VHDL_BIT = 2,
+ FST_SDT_VHDL_BIT_VECTOR = 3,
+ FST_SDT_VHDL_STD_ULOGIC = 4,
+ FST_SDT_VHDL_STD_ULOGIC_VECTOR = 5,
+ FST_SDT_VHDL_STD_LOGIC = 6,
+ FST_SDT_VHDL_STD_LOGIC_VECTOR = 7,
+ FST_SDT_VHDL_UNSIGNED = 8,
+ FST_SDT_VHDL_SIGNED = 9,
+ FST_SDT_VHDL_INTEGER = 10,
+ FST_SDT_VHDL_REAL = 11,
+ FST_SDT_VHDL_NATURAL = 12,
+ FST_SDT_VHDL_POSITIVE = 13,
+ FST_SDT_VHDL_TIME = 14,
+ FST_SDT_VHDL_CHARACTER = 15,
+ FST_SDT_VHDL_STRING = 16,
+
+ FST_SDT_MAX = 16,
+
+ FST_SDT_SVT_SHIFT_COUNT = 10, /* FST_SVT_* is ORed in by fstWriterCreateVar2() to the left after shifting FST_SDT_SVT_SHIFT_COUNT */
+ FST_SDT_ABS_MAX = ((1<<(FST_SDT_SVT_SHIFT_COUNT))-1)
+};
+
+
+struct fstHier
+{
+unsigned char htyp;
+
+union {
+ /* if htyp == FST_HT_SCOPE */
+ struct fstHierScope {
+ unsigned char typ; /* FST_ST_MIN ... FST_ST_MAX */
+ const char *name;
+ const char *component;
+ uint32_t name_length; /* strlen(u.scope.name) */
+ uint32_t component_length; /* strlen(u.scope.component) */
+ } scope;
+
+ /* if htyp == FST_HT_VAR */
+ struct fstHierVar {
+ unsigned char typ; /* FST_VT_MIN ... FST_VT_MAX */
+ unsigned char direction; /* FST_VD_MIN ... FST_VD_MAX */
+ unsigned char svt_workspace; /* zeroed out by FST reader, for client code use */
+ unsigned char sdt_workspace; /* zeroed out by FST reader, for client code use */
+ unsigned int sxt_workspace; /* zeroed out by FST reader, for client code use */
+ const char *name;
+ uint32_t length;
+ fstHandle handle;
+ uint32_t name_length; /* strlen(u.var.name) */
+ unsigned is_alias : 1;
+ } var;
+
+ /* if htyp == FST_HT_ATTRBEGIN */
+ struct fstHierAttr {
+ unsigned char typ; /* FST_AT_MIN ... FST_AT_MAX */
+ unsigned char subtype; /* from fstMiscType, fstArrayType, fstEnumValueType, fstPackType */
+ const char *name;
+ uint64_t arg; /* number of array elements, struct members, or some other payload (possibly ignored) */
+ uint64_t arg_from_name; /* for when name is overloaded as a variable-length integer (FST_AT_MISC + FST_MT_SOURCESTEM) */
+ uint32_t name_length; /* strlen(u.attr.name) */
+ } attr;
+ } u;
+};
+
+
+/*
+ * writer functions
+ */
+void fstWriterClose(void *ctx);
+void * fstWriterCreate(const char *nam, int use_compressed_hier);
+ /* used for Verilog/SV */
+fstHandle fstWriterCreateVar(void *ctx, enum fstVarType vt, enum fstVarDir vd,
+ uint32_t len, const char *nam, fstHandle aliasHandle);
+ /* future expansion for VHDL and other languages. The variable type, data type, etc map onto
+ the current Verilog/SV one. The "type" string is optional for a more verbose or custom description */
+fstHandle fstWriterCreateVar2(void *ctx, enum fstVarType vt, enum fstVarDir vd,
+ uint32_t len, const char *nam, fstHandle aliasHandle,
+ const char *type, enum fstSupplementalVarType svt, enum fstSupplementalDataType sdt);
+void fstWriterEmitValueChange(void *ctx, fstHandle handle, const void *val);
+void fstWriterEmitVariableLengthValueChange(void *ctx, fstHandle handle, const void *val, uint32_t len);
+void fstWriterEmitDumpActive(void *ctx, int enable);
+void fstWriterEmitTimeChange(void *ctx, uint64_t tim);
+void fstWriterFlushContext(void *ctx);
+int fstWriterGetDumpSizeLimitReached(void *ctx);
+int fstWriterGetFseekFailed(void *ctx);
+void fstWriterSetAttrBegin(void *ctx, enum fstAttrType attrtype, int subtype,
+ const char *attrname, uint64_t arg);
+void fstWriterSetAttrEnd(void *ctx);
+void fstWriterSetComment(void *ctx, const char *comm);
+void fstWriterSetDate(void *ctx, const char *dat);
+void fstWriterSetDumpSizeLimit(void *ctx, uint64_t numbytes);
+void fstWriterSetEnvVar(void *ctx, const char *envvar);
+void fstWriterSetFileType(void *ctx, enum fstFileType filetype);
+void fstWriterSetPackType(void *ctx, enum fstWriterPackType typ);
+void fstWriterSetParallelMode(void *ctx, int enable);
+void fstWriterSetRepackOnClose(void *ctx, int enable); /* type = 0 (none), 1 (libz) */
+void fstWriterSetScope(void *ctx, enum fstScopeType scopetype,
+ const char *scopename, const char *scopecomp);
+void fstWriterSetSourceInstantiationStem(void *ctx, const char *path, unsigned int line, unsigned int use_realpath);
+void fstWriterSetSourceStem(void *ctx, const char *path, unsigned int line, unsigned int use_realpath);
+void fstWriterSetTimescale(void *ctx, int ts);
+void fstWriterSetTimescaleFromString(void *ctx, const char *s);
+void fstWriterSetTimezero(void *ctx, int64_t tim);
+void fstWriterSetUpscope(void *ctx);
+void fstWriterSetVersion(void *ctx, const char *vers);
+
+
+/*
+ * reader functions
+ */
+void fstReaderClose(void *ctx);
+void fstReaderClrFacProcessMask(void *ctx, fstHandle facidx);
+void fstReaderClrFacProcessMaskAll(void *ctx);
+uint64_t fstReaderGetAliasCount(void *ctx);
+const char * fstReaderGetCurrentFlatScope(void *ctx);
+void * fstReaderGetCurrentScopeUserInfo(void *ctx);
+int fstReaderGetCurrentScopeLen(void *ctx);
+const char * fstReaderGetDateString(void *ctx);
+int fstReaderGetDoubleEndianMatchState(void *ctx);
+uint64_t fstReaderGetDumpActivityChangeTime(void *ctx, uint32_t idx);
+unsigned char fstReaderGetDumpActivityChangeValue(void *ctx, uint32_t idx);
+uint64_t fstReaderGetEndTime(void *ctx);
+int fstReaderGetFacProcessMask(void *ctx, fstHandle facidx);
+int fstReaderGetFileType(void *ctx);
+int fstReaderGetFseekFailed(void *ctx);
+fstHandle fstReaderGetMaxHandle(void *ctx);
+uint64_t fstReaderGetMemoryUsedByWriter(void *ctx);
+uint32_t fstReaderGetNumberDumpActivityChanges(void *ctx);
+uint64_t fstReaderGetScopeCount(void *ctx);
+uint64_t fstReaderGetStartTime(void *ctx);
+signed char fstReaderGetTimescale(void *ctx);
+int64_t fstReaderGetTimezero(void *ctx);
+uint64_t fstReaderGetValueChangeSectionCount(void *ctx);
+char * fstReaderGetValueFromHandleAtTime(void *ctx, uint64_t tim, fstHandle facidx, char *buf);
+uint64_t fstReaderGetVarCount(void *ctx);
+const char * fstReaderGetVersionString(void *ctx);
+struct fstHier *fstReaderIterateHier(void *ctx);
+int fstReaderIterateHierRewind(void *ctx);
+int fstReaderIterBlocks(void *ctx,
+ void (*value_change_callback)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value),
+ void *user_callback_data_pointer, FILE *vcdhandle);
+int fstReaderIterBlocks2(void *ctx,
+ void (*value_change_callback)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value),
+ void (*value_change_callback_varlen)(void *user_callback_data_pointer, uint64_t time, fstHandle facidx, const unsigned char *value, uint32_t len),
+ void *user_callback_data_pointer, FILE *vcdhandle);
+void fstReaderIterBlocksSetNativeDoublesOnCallback(void *ctx, int enable);
+void * fstReaderOpen(const char *nam);
+void * fstReaderOpenForUtilitiesOnly(void);
+const char * fstReaderPopScope(void *ctx);
+int fstReaderProcessHier(void *ctx, FILE *vcdhandle);
+const char * fstReaderPushScope(void *ctx, const char *nam, void *user_info);
+void fstReaderResetScope(void *ctx);
+void fstReaderSetFacProcessMask(void *ctx, fstHandle facidx);
+void fstReaderSetFacProcessMaskAll(void *ctx);
+void fstReaderSetLimitTimeRange(void *ctx, uint64_t start_time, uint64_t end_time);
+void fstReaderSetUnlimitedTimeRange(void *ctx);
+void fstReaderSetVcdExtensions(void *ctx, int enable);
+
+
+/*
+ * utility functions
+ */
+int fstUtilityBinToEsc(unsigned char *d, unsigned char *s, int len);
+int fstUtilityEscToBin(unsigned char *d, unsigned char *s, int len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/src/grt/fst/lz4.c b/src/grt/fst/lz4.c
new file mode 100644
index 000000000..39f176faf
--- /dev/null
+++ b/src/grt/fst/lz4.c
@@ -0,0 +1,1267 @@
+/*
+ LZ4 - Fast LZ compression algorithm
+ Copyright (C) 2011-2014, Yann Collet.
+ BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following disclaimer
+ in the documentation and/or other materials provided with the
+ distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact the author at :
+ - LZ4 source repository : http://code.google.com/p/lz4/
+ - LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c
+*/
+
+/**************************************
+ Tuning parameters
+**************************************/
+/*
+ * HEAPMODE :
+ * Select how default compression functions will allocate memory for their hash table,
+ * in memory stack (0:default, fastest), or in memory heap (1:requires memory allocation (malloc)).
+ */
+#define HEAPMODE 0
+
+
+/**************************************
+ CPU Feature Detection
+**************************************/
+/* 32 or 64 bits ? */
+#if (defined(__x86_64__) || defined(_M_X64) || defined(_WIN64) \
+ || defined(__64BIT__) || defined(__mips64) \
+ || defined(__powerpc64__) || defined(__powerpc64le__) \
+ || defined(__ppc64__) || defined(__ppc64le__) \
+ || defined(__PPC64__) || defined(__PPC64LE__) \
+ || defined(__ia64) || defined(__itanium__) || defined(_M_IA64) \
+ || defined(__s390x__) ) /* Detects 64 bits mode */
+# define LZ4_ARCH64 1
+#else
+# define LZ4_ARCH64 0
+#endif
+#define LZ4_32BITS (sizeof(void*)==4)
+#define LZ4_64BITS (sizeof(void*)==8)
+
+/*
+ * Little Endian or Big Endian ?
+ * Overwrite the #define below if you know your architecture endianess
+ */
+#include <stdlib.h> /* Apparently required to detect endianess */
+#if defined (__GLIBC__)
+# include <endian.h>
+# if (__BYTE_ORDER == __BIG_ENDIAN)
+# define LZ4_BIG_ENDIAN 1
+# endif
+#elif (defined(__BIG_ENDIAN__) || defined(__BIG_ENDIAN) || defined(_BIG_ENDIAN)) && !(defined(__LITTLE_ENDIAN__) || defined(__LITTLE_ENDIAN) || defined(_LITTLE_ENDIAN))
+# define LZ4_BIG_ENDIAN 1
+#elif defined(__sparc) || defined(__sparc__) \
+ || defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) \
+ || defined(__hpux) || defined(__hppa) \
+ || defined(_MIPSEB) || defined(__s390__)
+# define LZ4_BIG_ENDIAN 1
+#else
+/* Little Endian assumed. PDP Endian and other very rare endian format are unsupported. */
+#endif
+
+/*
+ * Unaligned memory access is automatically enabled for "common" CPU, such as x86.
+ * For others CPU, such as ARM, the compiler may be more cautious, inserting unnecessary extra code to ensure aligned access property
+ * If you know your target CPU supports unaligned memory access, you want to force this option manually to improve performance
+ */
+#if defined(__ARM_FEATURE_UNALIGNED)
+# define LZ4_FORCE_UNALIGNED_ACCESS 1
+#endif
+
+/* Define this parameter if your target system or compiler does not support hardware bit count */
+#if defined(_MSC_VER) && defined(_WIN32_WCE) /* Visual Studio for Windows CE does not support Hardware bit count */
+# define LZ4_FORCE_SW_BITCOUNT
+#endif
+
+/*
+ * BIG_ENDIAN_NATIVE_BUT_INCOMPATIBLE :
+ * This option may provide a small boost to performance for some big endian cpu, although probably modest.
+ * You may set this option to 1 if data will remain within closed environment.
+ * This option is useless on Little_Endian CPU (such as x86)
+ */
+
+/* #define BIG_ENDIAN_NATIVE_BUT_INCOMPATIBLE 1 */
+
+
+/**************************************
+ Compiler Options
+**************************************/
+#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */
+/* "restrict" is a known keyword */
+#else
+# define restrict /* Disable restrict */
+#endif
+
+#ifdef _MSC_VER /* Visual Studio */
+# define FORCE_INLINE static __forceinline
+# include <intrin.h> /* For Visual 2005 */
+# if LZ4_ARCH64 /* 64-bits */
+# pragma intrinsic(_BitScanForward64) /* For Visual 2005 */
+# pragma intrinsic(_BitScanReverse64) /* For Visual 2005 */
+# else /* 32-bits */
+# pragma intrinsic(_BitScanForward) /* For Visual 2005 */
+# pragma intrinsic(_BitScanReverse) /* For Visual 2005 */
+# endif
+# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
+#else
+# ifdef __GNUC__
+# define FORCE_INLINE static inline __attribute__((always_inline))
+# else
+# define FORCE_INLINE static inline
+# endif
+#endif
+
+#ifdef _MSC_VER /* Visual Studio */
+# define lz4_bswap16(x) _byteswap_ushort(x)
+#else
+# define lz4_bswap16(x) ((unsigned short int) ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8)))
+#endif
+
+#define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
+
+#if (GCC_VERSION >= 302) || (__INTEL_COMPILER >= 800) || defined(__clang__)
+# define expect(expr,value) (__builtin_expect ((expr),(value)) )
+#else
+# define expect(expr,value) (expr)
+#endif
+
+#define likely(expr) expect((expr) != 0, 1)
+#define unlikely(expr) expect((expr) != 0, 0)
+
+
+/**************************************
+ Memory routines
+**************************************/
+#include <stdlib.h> /* malloc, calloc, free */
+#define ALLOCATOR(n,s) calloc(n,s)
+#define FREEMEM free
+#include <string.h> /* memset, memcpy */
+#define MEM_INIT memset
+
+
+/**************************************
+ Includes
+**************************************/
+#include "lz4.h"
+
+
+/**************************************
+ Basic Types
+**************************************/
+#if defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */
+# include <stdint.h>
+ typedef uint8_t BYTE;
+ typedef uint16_t U16;
+ typedef uint32_t U32;
+ typedef int32_t S32;
+ typedef uint64_t U64;
+#else
+ typedef unsigned char BYTE;
+ typedef unsigned short U16;
+ typedef unsigned int U32;
+ typedef signed int S32;
+ typedef unsigned long long U64;
+#endif
+
+#if defined(__GNUC__) && !defined(LZ4_FORCE_UNALIGNED_ACCESS)
+# define _PACKED __attribute__ ((packed))
+#else
+# define _PACKED
+#endif
+
+#if !defined(LZ4_FORCE_UNALIGNED_ACCESS) && !defined(__GNUC__)
+# if defined(__IBMC__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+# pragma pack(1)
+# else
+# pragma pack(push, 1)
+# endif
+#endif
+
+typedef struct { U16 v; } _PACKED U16_S;
+typedef struct { U32 v; } _PACKED U32_S;
+typedef struct { U64 v; } _PACKED U64_S;
+typedef struct {size_t v;} _PACKED size_t_S;
+
+#if !defined(LZ4_FORCE_UNALIGNED_ACCESS) && !defined(__GNUC__)
+# if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+# pragma pack(0)
+# else
+# pragma pack(pop)
+# endif
+#endif
+
+#define A16(x) (((U16_S *)(x))->v)
+#define A32(x) (((U32_S *)(x))->v)
+#define A64(x) (((U64_S *)(x))->v)
+#define AARCH(x) (((size_t_S *)(x))->v)
+
+
+/**************************************
+ Constants
+**************************************/
+#define LZ4_HASHLOG (LZ4_MEMORY_USAGE-2)
+#define HASHTABLESIZE (1 << LZ4_MEMORY_USAGE)
+#define HASH_SIZE_U32 (1 << LZ4_HASHLOG)
+
+#define MINMATCH 4
+
+#define COPYLENGTH 8
+#define LASTLITERALS 5
+#define MFLIMIT (COPYLENGTH+MINMATCH)
+static const int LZ4_minLength = (MFLIMIT+1);
+
+#define KB *(1U<<10)
+#define MB *(1U<<20)
+#define GB *(1U<<30)
+
+#define LZ4_64KLIMIT ((64 KB) + (MFLIMIT-1))
+#define SKIPSTRENGTH 6 /* Increasing this value will make the compression run slower on incompressible data */
+
+#define MAXD_LOG 16
+#define MAX_DISTANCE ((1 << MAXD_LOG) - 1)
+
+#define ML_BITS 4
+#define ML_MASK ((1U<<ML_BITS)-1)
+#define RUN_BITS (8-ML_BITS)
+#define RUN_MASK ((1U<<RUN_BITS)-1)
+
+
+/**************************************
+ Structures and local types
+**************************************/
+typedef struct {
+ U32 hashTable[HASH_SIZE_U32];
+ U32 currentOffset;
+ U32 initCheck;
+ const BYTE* dictionary;
+ const BYTE* bufferStart;
+ U32 dictSize;
+} LZ4_stream_t_internal;
+
+typedef enum { notLimited = 0, limitedOutput = 1 } limitedOutput_directive;
+typedef enum { byPtr, byU32, byU16 } tableType_t;
+
+typedef enum { noDict = 0, withPrefix64k, usingExtDict } dict_directive;
+typedef enum { noDictIssue = 0, dictSmall } dictIssue_directive;
+
+typedef enum { endOnOutputSize = 0, endOnInputSize = 1 } endCondition_directive;
+typedef enum { full = 0, partial = 1 } earlyEnd_directive;
+
+
+/**************************************
+ Architecture-specific macros
+**************************************/
+#define STEPSIZE sizeof(size_t)
+#define LZ4_COPYSTEP(d,s) { AARCH(d) = AARCH(s); d+=STEPSIZE; s+=STEPSIZE; }
+#define LZ4_COPY8(d,s) { LZ4_COPYSTEP(d,s); if (STEPSIZE<8) LZ4_COPYSTEP(d,s); }
+
+#if (defined(LZ4_BIG_ENDIAN) && !defined(BIG_ENDIAN_NATIVE_BUT_INCOMPATIBLE))
+# define LZ4_READ_LITTLEENDIAN_16(d,s,p) { U16 v = A16(p); v = lz4_bswap16(v); d = (s) - v; }
+# define LZ4_WRITE_LITTLEENDIAN_16(p,i) { U16 v = (U16)(i); v = lz4_bswap16(v); A16(p) = v; p+=2; }
+#else /* Little Endian */
+# define LZ4_READ_LITTLEENDIAN_16(d,s,p) { d = (s) - A16(p); }
+# define LZ4_WRITE_LITTLEENDIAN_16(p,v) { A16(p) = v; p+=2; }
+#endif
+
+
+/**************************************
+ Macros
+**************************************/
+#define LZ4_STATIC_ASSERT(c) { enum { LZ4_static_assert = 1/(!!(c)) }; } /* use only *after* variable declarations */
+#if LZ4_ARCH64 || !defined(__GNUC__)
+# define LZ4_WILDCOPY(d,s,e) { do { LZ4_COPY8(d,s) } while (d<e); } /* at the end, d>=e; */
+#else
+# define LZ4_WILDCOPY(d,s,e) { if (likely(e-d <= 8)) LZ4_COPY8(d,s) else do { LZ4_COPY8(d,s) } while (d<e); }
+#endif
+
+
+/****************************
+ Private local functions
+****************************/
+#if LZ4_ARCH64
+
+static int LZ4_NbCommonBytes (register U64 val)
+{
+# if defined(LZ4_BIG_ENDIAN)
+# if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT)
+ unsigned long r = 0;
+ _BitScanReverse64( &r, val );
+ return (int)(r>>3);
+# elif defined(__GNUC__) && (GCC_VERSION >= 304) && !defined(LZ4_FORCE_SW_BITCOUNT)
+ return (__builtin_clzll(val) >> 3);
+# else
+ int r;
+ if (!(val>>32)) { r=4; } else { r=0; val>>=32; }
+ if (!(val>>16)) { r+=2; val>>=8; } else { val>>=24; }
+ r += (!val);
+ return r;
+# endif
+# else
+# if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT)
+ unsigned long r = 0;
+ _BitScanForward64( &r, val );
+ return (int)(r>>3);
+# elif defined(__GNUC__) && (GCC_VERSION >= 304) && !defined(LZ4_FORCE_SW_BITCOUNT)
+ return (__builtin_ctzll(val) >> 3);
+# else
+ static const int DeBruijnBytePos[64] = { 0, 0, 0, 0, 0, 1, 1, 2, 0, 3, 1, 3, 1, 4, 2, 7, 0, 2, 3, 6, 1, 5, 3, 5, 1, 3, 4, 4, 2, 5, 6, 7, 7, 0, 1, 2, 3, 3, 4, 6, 2, 6, 5, 5, 3, 4, 5, 6, 7, 1, 2, 4, 6, 4, 4, 5, 7, 2, 6, 5, 7, 6, 7, 7 };
+ return DeBruijnBytePos[((U64)((val & -(long long)val) * 0x0218A392CDABBD3FULL)) >> 58];
+# endif
+# endif
+}
+
+#else
+
+static int LZ4_NbCommonBytes (register U32 val)
+{
+# if defined(LZ4_BIG_ENDIAN)
+# if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT)
+ unsigned long r = 0;
+ _BitScanReverse( &r, val );
+ return (int)(r>>3);
+# elif defined(__GNUC__) && (GCC_VERSION >= 304) && !defined(LZ4_FORCE_SW_BITCOUNT)
+ return (__builtin_clz(val) >> 3);
+# else
+ int r;
+ if (!(val>>16)) { r=2; val>>=8; } else { r=0; val>>=24; }
+ r += (!val);
+ return r;
+# endif
+# else
+# if defined(_MSC_VER) && !defined(LZ4_FORCE_SW_BITCOUNT)
+ unsigned long r;
+ _BitScanForward( &r, val );
+ return (int)(r>>3);
+# elif defined(__GNUC__) && (GCC_VERSION >= 304) && !defined(LZ4_FORCE_SW_BITCOUNT)
+ return (__builtin_ctz(val) >> 3);
+# else
+ static const int DeBruijnBytePos[32] = { 0, 0, 3, 0, 3, 1, 3, 0, 3, 2, 2, 1, 3, 2, 0, 1, 3, 3, 1, 2, 2, 2, 2, 0, 3, 1, 2, 0, 1, 0, 1, 1 };
+ return DeBruijnBytePos[((U32)((val & -(S32)val) * 0x077CB531U)) >> 27];
+# endif
+# endif
+}
+
+#endif
+
+
+/********************************
+ Compression functions
+********************************/
+int LZ4_versionNumber (void) { return LZ4_VERSION_NUMBER; }
+int LZ4_compressBound(int isize) { return LZ4_COMPRESSBOUND(isize); }
+
+static int LZ4_hashSequence(U32 sequence, tableType_t tableType)
+{
+ if (tableType == byU16)
+ return (((sequence) * 2654435761U) >> ((MINMATCH*8)-(LZ4_HASHLOG+1)));
+ else
+ return (((sequence) * 2654435761U) >> ((MINMATCH*8)-LZ4_HASHLOG));
+}
+
+static int LZ4_hashPosition(const BYTE* p, tableType_t tableType) { return LZ4_hashSequence(A32(p), tableType); }
+
+static void LZ4_putPositionOnHash(const BYTE* p, U32 h, void* tableBase, tableType_t tableType, const BYTE* srcBase)
+{
+ switch (tableType)
+ {
+ case byPtr: { const BYTE** hashTable = (const BYTE**) tableBase; hashTable[h] = p; break; }
+ case byU32: { U32* hashTable = (U32*) tableBase; hashTable[h] = (U32)(p-srcBase); break; }
+ case byU16: { U16* hashTable = (U16*) tableBase; hashTable[h] = (U16)(p-srcBase); break; }
+ }
+}
+
+static void LZ4_putPosition(const BYTE* p, void* tableBase, tableType_t tableType, const BYTE* srcBase)
+{
+ U32 h = LZ4_hashPosition(p, tableType);
+ LZ4_putPositionOnHash(p, h, tableBase, tableType, srcBase);
+}
+
+static const BYTE* LZ4_getPositionOnHash(U32 h, void* tableBase, tableType_t tableType, const BYTE* srcBase)
+{
+ if (tableType == byPtr) { const BYTE** hashTable = (const BYTE**) tableBase; return hashTable[h]; }
+ if (tableType == byU32) { U32* hashTable = (U32*) tableBase; return hashTable[h] + srcBase; }
+ { U16* hashTable = (U16*) tableBase; return hashTable[h] + srcBase; } /* default, to ensure a return */
+}
+
+static const BYTE* LZ4_getPosition(const BYTE* p, void* tableBase, tableType_t tableType, const BYTE* srcBase)
+{
+ U32 h = LZ4_hashPosition(p, tableType);
+ return LZ4_getPositionOnHash(h, tableBase, tableType, srcBase);
+}
+
+static unsigned LZ4_count(const BYTE* pIn, const BYTE* pRef, const BYTE* pInLimit)
+{
+ const BYTE* const pStart = pIn;
+
+ while (likely(pIn<pInLimit-(STEPSIZE-1)))
+ {
+ size_t diff = AARCH(pRef) ^ AARCH(pIn);
+ if (!diff) { pIn+=STEPSIZE; pRef+=STEPSIZE; continue; }
+ pIn += LZ4_NbCommonBytes(diff);
+ return (unsigned)(pIn - pStart);
+ }
+ if (LZ4_64BITS) if ((pIn<(pInLimit-3)) && (A32(pRef) == A32(pIn))) { pIn+=4; pRef+=4; }
+ if ((pIn<(pInLimit-1)) && (A16(pRef) == A16(pIn))) { pIn+=2; pRef+=2; }
+ if ((pIn<pInLimit) && (*pRef == *pIn)) pIn++;
+
+ return (unsigned)(pIn - pStart);
+}
+
+
+static int LZ4_compress_generic(
+ void* ctx,
+ const char* source,
+ char* dest,
+ int inputSize,
+ int maxOutputSize,
+
+ limitedOutput_directive outputLimited,
+ tableType_t tableType,
+ dict_directive dict,
+ dictIssue_directive dictIssue)
+{
+ LZ4_stream_t_internal* const dictPtr = (LZ4_stream_t_internal*)ctx;
+
+ const BYTE* ip = (const BYTE*) source;
+ const BYTE* base;
+ const BYTE* lowLimit;
+ const BYTE* const lowRefLimit = ip - dictPtr->dictSize;
+ const BYTE* const dictionary = dictPtr->dictionary;
+ const BYTE* const dictEnd = dictionary + dictPtr->dictSize;
+ const size_t dictDelta = dictEnd - (const BYTE*)source;
+ const BYTE* anchor = (const BYTE*) source;
+ const BYTE* const iend = ip + inputSize;
+ const BYTE* const mflimit = iend - MFLIMIT;
+ const BYTE* const matchlimit = iend - LASTLITERALS;
+
+ BYTE* op = (BYTE*) dest;
+ BYTE* const olimit = op + maxOutputSize;
+
+ const int skipStrength = SKIPSTRENGTH;
+ U32 forwardH;
+ size_t refDelta=0;
+
+ /* Init conditions */
+ if ((U32)inputSize > (U32)LZ4_MAX_INPUT_SIZE) return 0; /* Unsupported input size, too large (or negative) */
+ switch(dict)
+ {
+ case noDict:
+ default:
+ base = (const BYTE*)source;
+ lowLimit = (const BYTE*)source;
+ break;
+ case withPrefix64k:
+ base = (const BYTE*)source - dictPtr->currentOffset;
+ lowLimit = (const BYTE*)source - dictPtr->dictSize;
+ break;
+ case usingExtDict:
+ base = (const BYTE*)source - dictPtr->currentOffset;
+ lowLimit = (const BYTE*)source;
+ break;
+ }
+ if ((tableType == byU16) && (inputSize>=(int)LZ4_64KLIMIT)) return 0; /* Size too large (not within 64K limit) */
+ if (inputSize<LZ4_minLength) goto _last_literals; /* Input too small, no compression (all literals) */
+
+ /* First Byte */
+ LZ4_putPosition(ip, ctx, tableType, base);
+ ip++; forwardH = LZ4_hashPosition(ip, tableType);
+
+ /* Main Loop */
+ for ( ; ; )
+ {
+ const BYTE* ref;
+ BYTE* token;
+ {
+ const BYTE* forwardIp = ip;
+ unsigned step=1;
+ unsigned searchMatchNb = (1U << skipStrength);
+
+ /* Find a match */
+ do {
+ U32 h = forwardH;
+ ip = forwardIp;
+ forwardIp += step;
+ step = searchMatchNb++ >> skipStrength;
+
+ if (unlikely(forwardIp > mflimit)) goto _last_literals;
+
+ ref = LZ4_getPositionOnHash(h, ctx, tableType, base);
+ if (dict==usingExtDict)
+ {
+ if (ref<(const BYTE*)source)
+ {
+ refDelta = dictDelta;
+ lowLimit = dictionary;
+ }
+ else
+ {
+ refDelta = 0;
+ lowLimit = (const BYTE*)source;
+ }
+ }
+ forwardH = LZ4_hashPosition(forwardIp, tableType);
+ LZ4_putPositionOnHash(ip, h, ctx, tableType, base);
+
+ } while ( ((dictIssue==dictSmall) ? (ref < lowRefLimit) : 0)
+ || ((tableType==byU16) ? 0 : (ref + MAX_DISTANCE < ip))
+ || (A32(ref+refDelta) != A32(ip)) );
+ }
+
+ /* Catch up */
+ while ((ip>anchor) && (ref+refDelta > lowLimit) && (unlikely(ip[-1]==ref[refDelta-1]))) { ip--; ref--; }
+
+ {
+ /* Encode Literal length */
+ unsigned litLength = (unsigned)(ip - anchor);
+ token = op++;
+ if ((outputLimited) && (unlikely(op + litLength + (2 + 1 + LASTLITERALS) + (litLength/255) > olimit)))
+ return 0; /* Check output limit */
+ if (litLength>=RUN_MASK)
+ {
+ int len = (int)litLength-RUN_MASK;
+ *token=(RUN_MASK<<ML_BITS);
+ for(; len >= 255 ; len-=255) *op++ = 255;
+ *op++ = (BYTE)len;
+ }
+ else *token = (BYTE)(litLength<<ML_BITS);
+
+ /* Copy Literals */
+ { BYTE* end = op+litLength; LZ4_WILDCOPY(op,anchor,end); op=end; }
+ }
+
+_next_match:
+ /* Encode Offset */
+ LZ4_WRITE_LITTLEENDIAN_16(op, (U16)(ip-ref));
+
+ /* Encode MatchLength */
+ {
+ unsigned matchLength;
+
+ if ((dict==usingExtDict) && (lowLimit==dictionary))
+ {
+ const BYTE* limit;
+ ref += refDelta;
+ limit = ip + (dictEnd-ref);
+ if (limit > matchlimit) limit = matchlimit;
+ matchLength = LZ4_count(ip+MINMATCH, ref+MINMATCH, limit);
+ ip += MINMATCH + matchLength;
+ if (ip==limit)
+ {
+ unsigned more = LZ4_count(ip, (const BYTE*)source, matchlimit);
+ matchLength += more;
+ ip += more;
+ }
+ }
+ else
+ {
+ matchLength = LZ4_count(ip+MINMATCH, ref+MINMATCH, matchlimit);
+ ip += MINMATCH + matchLength;
+ }
+
+ if (matchLength>=ML_MASK)
+ {
+ if ((outputLimited) && (unlikely(op + (1 + LASTLITERALS) + (matchLength>>8) > olimit)))
+ return 0; /* Check output limit */
+ *token += ML_MASK;
+ matchLength -= ML_MASK;
+ for (; matchLength >= 510 ; matchLength-=510) { *op++ = 255; *op++ = 255; }
+ if (matchLength >= 255) { matchLength-=255; *op++ = 255; }
+ *op++ = (BYTE)matchLength;
+ }
+ else *token += (BYTE)(matchLength);
+ }
+
+ anchor = ip;
+
+ /* Test end of chunk */
+ if (ip > mflimit) break;
+
+ /* Fill table */
+ LZ4_putPosition(ip-2, ctx, tableType, base);
+
+ /* Test next position */
+ ref = LZ4_getPosition(ip, ctx, tableType, base);
+ if (dict==usingExtDict)
+ {
+ if (ref<(const BYTE*)source)
+ {
+ refDelta = dictDelta;
+ lowLimit = dictionary;
+ }
+ else
+ {
+ refDelta = 0;
+ lowLimit = (const BYTE*)source;
+ }
+ }
+ LZ4_putPosition(ip, ctx, tableType, base);
+ if ( ((dictIssue==dictSmall) ? (ref>=lowRefLimit) : 1)
+ && (ref+MAX_DISTANCE>=ip)
+ && (A32(ref+refDelta)==A32(ip)) )
+ { token=op++; *token=0; goto _next_match; }
+
+ /* Prepare next loop */
+ forwardH = LZ4_hashPosition(++ip, tableType);
+ }
+
+_last_literals:
+ /* Encode Last Literals */
+ {
+ int lastRun = (int)(iend - anchor);
+ if ((outputLimited) && (((char*)op - dest) + lastRun + 1 + ((lastRun+255-RUN_MASK)/255) > (U32)maxOutputSize))
+ return 0; /* Check output limit */
+ if (lastRun>=(int)RUN_MASK) { *op++=(RUN_MASK<<ML_BITS); lastRun-=RUN_MASK; for(; lastRun >= 255 ; lastRun-=255) *op++ = 255; *op++ = (BYTE) lastRun; }
+ else *op++ = (BYTE)(lastRun<<ML_BITS);
+ memcpy(op, anchor, iend - anchor);
+ op += iend-anchor;
+ }
+
+ /* End */
+ return (int) (((char*)op)-dest);
+}
+
+
+int LZ4_compress(const char* source, char* dest, int inputSize)
+{
+#if (HEAPMODE)
+ void* ctx = ALLOCATOR(LZ4_STREAMSIZE_U32, 4); /* Aligned on 4-bytes boundaries */
+#else
+ U32 ctx[LZ4_STREAMSIZE_U32] = {0}; /* Ensure data is aligned on 4-bytes boundaries */
+#endif
+ int result;
+
+ if (inputSize < (int)LZ4_64KLIMIT)
+ result = LZ4_compress_generic((void*)ctx, source, dest, inputSize, 0, notLimited, byU16, noDict, noDictIssue);
+ else
+ result = LZ4_compress_generic((void*)ctx, source, dest, inputSize, 0, notLimited, LZ4_64BITS ? byU32 : byPtr, noDict, noDictIssue);
+
+#if (HEAPMODE)
+ FREEMEM(ctx);
+#endif
+ return result;
+}
+
+int LZ4_compress_limitedOutput(const char* source, char* dest, int inputSize, int maxOutputSize)
+{
+#if (HEAPMODE)
+ void* ctx = ALLOCATOR(LZ4_STREAMSIZE_U32, 4); /* Aligned on 4-bytes boundaries */
+#else
+ U32 ctx[LZ4_STREAMSIZE_U32] = {0}; /* Ensure data is aligned on 4-bytes boundaries */
+#endif
+ int result;
+
+ if (inputSize < (int)LZ4_64KLIMIT)
+ result = LZ4_compress_generic((void*)ctx, source, dest, inputSize, maxOutputSize, limitedOutput, byU16, noDict, noDictIssue);
+ else
+ result = LZ4_compress_generic((void*)ctx, source, dest, inputSize, maxOutputSize, limitedOutput, LZ4_64BITS ? byU32 : byPtr, noDict, noDictIssue);
+
+#if (HEAPMODE)
+ FREEMEM(ctx);
+#endif
+ return result;
+}
+
+
+/*****************************************
+ Experimental : Streaming functions
+*****************************************/
+
+/*
+ * LZ4_initStream
+ * Use this function once, to init a newly allocated LZ4_stream_t structure
+ * Return : 1 if OK, 0 if error
+ */
+void LZ4_resetStream (LZ4_stream_t* LZ4_stream)
+{
+ MEM_INIT(LZ4_stream, 0, sizeof(LZ4_stream_t));
+}
+
+LZ4_stream_t* LZ4_createStream(void)
+{
+ LZ4_stream_t* lz4s = (LZ4_stream_t*)ALLOCATOR(4, LZ4_STREAMSIZE_U32);
+ LZ4_resetStream(lz4s);
+ return lz4s;
+}
+
+int LZ4_freeStream (LZ4_stream_t* LZ4_stream)
+{
+ FREEMEM(LZ4_stream);
+ return (0);
+}
+
+
+int LZ4_loadDict (LZ4_stream_t* LZ4_dict, const char* dictionary, int dictSize)
+{
+ LZ4_stream_t_internal* dict = (LZ4_stream_t_internal*) LZ4_dict;
+ const BYTE* p = (const BYTE*)dictionary;
+ const BYTE* const dictEnd = p + dictSize;
+ const BYTE* base;
+
+ LZ4_STATIC_ASSERT(LZ4_STREAMSIZE >= sizeof(LZ4_stream_t_internal)); /* A compilation error here means LZ4_STREAMSIZE is not large enough */
+ if (dict->initCheck) LZ4_resetStream(LZ4_dict); /* Uninitialized structure detected */
+
+ if (dictSize < MINMATCH)
+ {
+ dict->dictionary = NULL;
+ dict->dictSize = 0;
+ return 1;
+ }
+
+ if (p <= dictEnd - 64 KB) p = dictEnd - 64 KB;
+ base = p - dict->currentOffset;
+ dict->dictionary = p;
+ dict->dictSize = (U32)(dictEnd - p);
+ dict->currentOffset += dict->dictSize;
+
+ while (p <= dictEnd-MINMATCH)
+ {
+ LZ4_putPosition(p, dict, byU32, base);
+ p+=3;
+ }
+
+ return 1;
+}
+
+
+static void LZ4_renormDictT(LZ4_stream_t_internal* LZ4_dict, const BYTE* src)
+{
+ if ((LZ4_dict->currentOffset > 0x80000000) ||
+ ((size_t)LZ4_dict->currentOffset > (size_t)src)) /* address space overflow */
+ {
+ /* rescale hash table */
+ U32 delta = LZ4_dict->currentOffset - 64 KB;
+ const BYTE* dictEnd = LZ4_dict->dictionary + LZ4_dict->dictSize;
+ int i;
+ for (i=0; i<HASH_SIZE_U32; i++)
+ {
+ if (LZ4_dict->hashTable[i] < delta) LZ4_dict->hashTable[i]=0;
+ else LZ4_dict->hashTable[i] -= delta;
+ }
+ LZ4_dict->currentOffset = 64 KB;
+ if (LZ4_dict->dictSize > 64 KB) LZ4_dict->dictSize = 64 KB;
+ LZ4_dict->dictionary = dictEnd - LZ4_dict->dictSize;
+ }
+}
+
+
+FORCE_INLINE int LZ4_compress_continue_generic (void* LZ4_stream, const char* source, char* dest, int inputSize,
+ int maxOutputSize, limitedOutput_directive limit)
+{
+ LZ4_stream_t_internal* streamPtr = (LZ4_stream_t_internal*)LZ4_stream;
+ const BYTE* const dictEnd = streamPtr->dictionary + streamPtr->dictSize;
+
+ const BYTE* smallest = (const BYTE*) source;
+ if (streamPtr->initCheck) return 0; /* Uninitialized structure detected */
+ if ((streamPtr->dictSize>0) && (smallest>dictEnd)) smallest = dictEnd;
+ LZ4_renormDictT(streamPtr, smallest);
+
+ /* Check overlapping input/dictionary space */
+ {
+ const BYTE* sourceEnd = (const BYTE*) source + inputSize;
+ if ((sourceEnd > streamPtr->dictionary) && (sourceEnd < dictEnd))
+ {
+ streamPtr->dictSize = (U32)(dictEnd - sourceEnd);
+ if (streamPtr->dictSize > 64 KB) streamPtr->dictSize = 64 KB;
+ if (streamPtr->dictSize < 4) streamPtr->dictSize = 0;
+ streamPtr->dictionary = dictEnd - streamPtr->dictSize;
+ }
+ }
+
+ /* prefix mode : source data follows dictionary */
+ if (dictEnd == (const BYTE*)source)
+ {
+ int result;
+ if ((streamPtr->dictSize < 64 KB) && (streamPtr->dictSize < streamPtr->currentOffset))
+ result = LZ4_compress_generic(LZ4_stream, source, dest, inputSize, maxOutputSize, limit, byU32, withPrefix64k, dictSmall);
+ else
+ result = LZ4_compress_generic(LZ4_stream, source, dest, inputSize, maxOutputSize, limit, byU32, withPrefix64k, noDictIssue);
+ streamPtr->dictSize += (U32)inputSize;
+ streamPtr->currentOffset += (U32)inputSize;
+ return result;
+ }
+
+ /* external dictionary mode */
+ {
+ int result;
+ if ((streamPtr->dictSize < 64 KB) && (streamPtr->dictSize < streamPtr->currentOffset))
+ result = LZ4_compress_generic(LZ4_stream, source, dest, inputSize, maxOutputSize, limit, byU32, usingExtDict, dictSmall);
+ else
+ result = LZ4_compress_generic(LZ4_stream, source, dest, inputSize, maxOutputSize, limit, byU32, usingExtDict, noDictIssue);
+ streamPtr->dictionary = (const BYTE*)source;
+ streamPtr->dictSize = (U32)inputSize;
+ streamPtr->currentOffset += (U32)inputSize;
+ return result;
+ }
+}
+
+int LZ4_compress_continue (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize)
+{
+ return LZ4_compress_continue_generic(LZ4_stream, source, dest, inputSize, 0, notLimited);
+}
+
+int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize, int maxOutputSize)
+{
+ return LZ4_compress_continue_generic(LZ4_stream, source, dest, inputSize, maxOutputSize, limitedOutput);
+}
+
+
+/* Hidden debug function, to force separate dictionary mode */
+int LZ4_compress_forceExtDict (LZ4_stream_t* LZ4_dict, const char* source, char* dest, int inputSize)
+{
+ LZ4_stream_t_internal* streamPtr = (LZ4_stream_t_internal*)LZ4_dict;
+ int result;
+ const BYTE* const dictEnd = streamPtr->dictionary + streamPtr->dictSize;
+
+ const BYTE* smallest = dictEnd;
+ if (smallest > (const BYTE*) source) smallest = (const BYTE*) source;
+ LZ4_renormDictT((LZ4_stream_t_internal*)LZ4_dict, smallest);
+
+ result = LZ4_compress_generic(LZ4_dict, source, dest, inputSize, 0, notLimited, byU32, usingExtDict, noDictIssue);
+
+ streamPtr->dictionary = (const BYTE*)source;
+ streamPtr->dictSize = (U32)inputSize;
+ streamPtr->currentOffset += (U32)inputSize;
+
+ return result;
+}
+
+
+int LZ4_saveDict (LZ4_stream_t* LZ4_dict, char* safeBuffer, int dictSize)
+{
+ LZ4_stream_t_internal* dict = (LZ4_stream_t_internal*) LZ4_dict;
+ const BYTE* previousDictEnd = dict->dictionary + dict->dictSize;
+
+ if ((U32)dictSize > 64 KB) dictSize = 64 KB; /* useless to define a dictionary > 64 KB */
+ if ((U32)dictSize > dict->dictSize) dictSize = dict->dictSize;
+
+ memmove(safeBuffer, previousDictEnd - dictSize, dictSize);
+
+ dict->dictionary = (const BYTE*)safeBuffer;
+ dict->dictSize = (U32)dictSize;
+
+ return dictSize;
+}
+
+
+
+/****************************
+ Decompression functions
+****************************/
+/*
+ * This generic decompression function cover all use cases.
+ * It shall be instantiated several times, using different sets of directives
+ * Note that it is essential this generic function is really inlined,
+ * in order to remove useless branches during compilation optimization.
+ */
+FORCE_INLINE int LZ4_decompress_generic(
+ const char* source,
+ char* dest,
+ int inputSize,
+ int outputSize, /* If endOnInput==endOnInputSize, this value is the max size of Output Buffer. */
+
+ int endOnInput, /* endOnOutputSize, endOnInputSize */
+ int partialDecoding, /* full, partial */
+ int targetOutputSize, /* only used if partialDecoding==partial */
+ int dict, /* noDict, withPrefix64k, usingExtDict */
+ const char* dictStart, /* only if dict==usingExtDict */
+ int dictSize /* note : = 0 if noDict */
+ )
+{
+ /* Local Variables */
+ const BYTE* restrict ip = (const BYTE*) source;
+ const BYTE* ref;
+ const BYTE* const iend = ip + inputSize;
+
+ BYTE* op = (BYTE*) dest;
+ BYTE* const oend = op + outputSize;
+ BYTE* cpy;
+ BYTE* oexit = op + targetOutputSize;
+ const BYTE* const lowLimit = (const BYTE*)dest - dictSize;
+
+ const BYTE* const dictEnd = (const BYTE*)dictStart + dictSize;
+ const size_t dec32table[] = {4, 1, 2, 1, 4, 4, 4, 4};
+ const size_t dec64table[] = {0, 0, 0, (size_t)-1, 0, 1, 2, 3};
+
+ const int safeDecode = (endOnInput==endOnInputSize);
+ const int checkOffset = ((safeDecode) && (dictSize < (int)(64 KB)));
+
+
+ /* Special cases */
+ if ((partialDecoding) && (oexit> oend-MFLIMIT)) oexit = oend-MFLIMIT; /* targetOutputSize too high => decode everything */
+ if ((endOnInput) && (unlikely(outputSize==0))) return ((inputSize==1) && (*ip==0)) ? 0 : -1; /* Empty output buffer */
+ if ((!endOnInput) && (unlikely(outputSize==0))) return (*ip==0?1:-1);
+
+
+ /* Main Loop */
+ while (1)
+ {
+ unsigned token;
+ size_t length;
+
+ /* get runlength */
+ token = *ip++;
+ if ((length=(token>>ML_BITS)) == RUN_MASK)
+ {
+ unsigned s;
+ do
+ {
+ s = *ip++;
+ length += s;
+ }
+ while (likely((endOnInput)?ip<iend-RUN_MASK:1) && (s==255));
+ if ((safeDecode) && LZ4_32BITS && unlikely((size_t)(op+length)<(size_t)(op))) goto _output_error; /* overflow detection */
+ if ((safeDecode) && LZ4_32BITS && unlikely((size_t)(ip+length)<(size_t)(ip))) goto _output_error; /* overflow detection */
+ }
+
+ /* copy literals */
+ cpy = op+length;
+ if (((endOnInput) && ((cpy>(partialDecoding?oexit:oend-MFLIMIT)) || (ip+length>iend-(2+1+LASTLITERALS))) )
+ || ((!endOnInput) && (cpy>oend-COPYLENGTH)))
+ {
+ if (partialDecoding)
+ {
+ if (cpy > oend) goto _output_error; /* Error : write attempt beyond end of output buffer */
+ if ((endOnInput) && (ip+length > iend)) goto _output_error; /* Error : read attempt beyond end of input buffer */
+ }
+ else
+ {
+ if ((!endOnInput) && (cpy != oend)) goto _output_error; /* Error : block decoding must stop exactly there */
+ if ((endOnInput) && ((ip+length != iend) || (cpy > oend))) goto _output_error; /* Error : input must be consumed */
+ }
+ memcpy(op, ip, length);
+ ip += length;
+ op += length;
+ break; /* Necessarily EOF, due to parsing restrictions */
+ }
+ LZ4_WILDCOPY(op, ip, cpy); ip -= (op-cpy); op = cpy;
+
+ /* get offset */
+ LZ4_READ_LITTLEENDIAN_16(ref,cpy,ip); ip+=2;
+ if ((checkOffset) && (unlikely(ref < lowLimit))) goto _output_error; /* Error : offset outside destination buffer */
+
+ /* get matchlength */
+ if ((length=(token&ML_MASK)) == ML_MASK)
+ {
+ unsigned s;
+ do
+ {
+ if ((endOnInput) && (ip > iend-LASTLITERALS)) goto _output_error;
+ s = *ip++;
+ length += s;
+ } while (s==255);
+ if ((safeDecode) && LZ4_32BITS && unlikely((size_t)(op+length)<(size_t)op)) goto _output_error; /* overflow detection */
+ }
+ length += MINMATCH;
+
+ /* check external dictionary */
+ if ((dict==usingExtDict) && (ref < (BYTE* const)dest))
+ {
+ if (unlikely(op+length > oend-LASTLITERALS)) goto _output_error;
+
+ if (length <= (size_t)(dest-(char*)ref))
+ {
+ ref = dictEnd - (dest-(char*)ref);
+ memcpy(op, ref, length);
+ op += length;
+ }
+ else
+ {
+ size_t copySize = (size_t)(dest-(char*)ref);
+ memcpy(op, dictEnd - copySize, copySize);
+ op += copySize;
+ copySize = length - copySize;
+ if (copySize > (size_t)((char*)op-dest)) /* overlap */
+ {
+ BYTE* const endOfMatch = op + copySize;
+ const BYTE* copyFrom = (BYTE*)dest;
+ while (op < endOfMatch) *op++ = *copyFrom++;
+ }
+ else
+ {
+ memcpy(op, dest, copySize);
+ op += copySize;
+ }
+ }
+ continue;
+ }
+
+ /* copy repeated sequence */
+ cpy = op + length;
+ if (unlikely((op-ref)<(int)STEPSIZE))
+ {
+ const size_t dec64 = dec64table[op-ref];
+ op[0] = ref[0];
+ op[1] = ref[1];
+ op[2] = ref[2];
+ op[3] = ref[3];
+ ref += dec32table[op-ref];
+ A32(op+4) = A32(ref);
+ op += 8; ref -= dec64;
+ } else { LZ4_COPY8(op,ref); }
+
+ if (unlikely(cpy>oend-12))
+ {
+ if (cpy > oend-LASTLITERALS) goto _output_error; /* Error : last 5 bytes must be literals */
+ if (op<oend-COPYLENGTH) LZ4_WILDCOPY(op, ref, (oend-COPYLENGTH));
+ while(op<cpy) *op++=*ref++;
+ }
+ else LZ4_WILDCOPY(op, ref, cpy);
+ op=cpy; /* correction */
+ }
+
+ /* end of decoding */
+ if (endOnInput)
+ return (int) (((char*)op)-dest); /* Nb of output bytes decoded */
+ else
+ return (int) (((char*)ip)-source); /* Nb of input bytes read */
+
+ /* Overflow error detected */
+_output_error:
+ return (int) (-(((char*)ip)-source))-1;
+}
+
+
+int LZ4_decompress_safe(const char* source, char* dest, int compressedSize, int maxDecompressedSize)
+{
+ return LZ4_decompress_generic(source, dest, compressedSize, maxDecompressedSize, endOnInputSize, full, 0, noDict, NULL, 0);
+}
+
+int LZ4_decompress_safe_partial(const char* source, char* dest, int compressedSize, int targetOutputSize, int maxDecompressedSize)
+{
+ return LZ4_decompress_generic(source, dest, compressedSize, maxDecompressedSize, endOnInputSize, partial, targetOutputSize, noDict, NULL, 0);
+}
+
+int LZ4_decompress_fast(const char* source, char* dest, int originalSize)
+{
+ return LZ4_decompress_generic(source, dest, 0, originalSize, endOnOutputSize, full, 0, withPrefix64k, NULL, 64 KB);
+}
+
+/* streaming decompression functions */
+
+typedef struct
+{
+ const char* dictionary;
+ int dictSize;
+} LZ4_streamDecode_t_internal;
+
+/*
+ * If you prefer dynamic allocation methods,
+ * LZ4_createStreamDecode()
+ * provides a pointer (void*) towards an initialized LZ4_streamDecode_t structure.
+ */
+LZ4_streamDecode_t* LZ4_createStreamDecode(void)
+{
+ LZ4_streamDecode_t* lz4s = (LZ4_streamDecode_t*) ALLOCATOR(sizeof(U32), LZ4_STREAMDECODESIZE_U32);
+ MEM_INIT(lz4s, 0, LZ4_STREAMDECODESIZE);
+ return lz4s;
+}
+
+int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream)
+{
+ FREEMEM(LZ4_stream);
+ return 0;
+}
+
+/*
+ * LZ4_setStreamDecode
+ * Use this function to instruct where to find the dictionary
+ * This function is not necessary if previous data is still available where it was decoded.
+ * Loading a size of 0 is allowed (same effect as no dictionary).
+ * Return : 1 if OK, 0 if error
+ */
+int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize)
+{
+ LZ4_streamDecode_t_internal* lz4sd = (LZ4_streamDecode_t_internal*) LZ4_streamDecode;
+ lz4sd->dictionary = dictionary;
+ lz4sd->dictSize = dictSize;
+ return 1;
+}
+
+/*
+*_continue() :
+ These decoding functions allow decompression of multiple blocks in "streaming" mode.
+ Previously decoded blocks must still be available at the memory position where they were decoded.
+ If it's not possible, save the relevant part of decoded data into a safe buffer,
+ and indicate where it stands using LZ4_setDictDecode()
+*/
+int LZ4_decompress_safe_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int compressedSize, int maxOutputSize)
+{
+ LZ4_streamDecode_t_internal* lz4sd = (LZ4_streamDecode_t_internal*) LZ4_streamDecode;
+ int result;
+
+ result = LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, endOnInputSize, full, 0, usingExtDict, lz4sd->dictionary, lz4sd->dictSize);
+ if (result <= 0) return result;
+ if (lz4sd->dictionary + lz4sd->dictSize == dest)
+ {
+ lz4sd->dictSize += result;
+ }
+ else
+ {
+ lz4sd->dictionary = dest;
+ lz4sd->dictSize = result;
+ }
+
+ return result;
+}
+
+int LZ4_decompress_fast_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int originalSize)
+{
+ LZ4_streamDecode_t_internal* lz4sd = (LZ4_streamDecode_t_internal*) LZ4_streamDecode;
+ int result;
+
+ result = LZ4_decompress_generic(source, dest, 0, originalSize, endOnOutputSize, full, 0, usingExtDict, lz4sd->dictionary, lz4sd->dictSize);
+ if (result <= 0) return result;
+ if (lz4sd->dictionary + lz4sd->dictSize == dest)
+ {
+ lz4sd->dictSize += result;
+ }
+ else
+ {
+ lz4sd->dictionary = dest;
+ lz4sd->dictSize = result;
+ }
+
+ return result;
+}
+
+
+/*
+Advanced decoding functions :
+*_usingDict() :
+ These decoding functions work the same as "_continue" ones,
+ the dictionary must be explicitly provided within parameters
+*/
+
+FORCE_INLINE int LZ4_decompress_usingDict_generic(const char* source, char* dest, int compressedSize, int maxOutputSize, int safe, const char* dictStart, int dictSize)
+{
+ if (dictSize==0)
+ return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, safe, full, 0, noDict, NULL, 64 KB);
+ if ((dictStart+dictSize == dest) && (dictSize >= (int)(64 KB - 1)))
+ return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, safe, full, 0, withPrefix64k, NULL, 64 KB);
+ return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, safe, full, 0, usingExtDict, dictStart, dictSize);
+}
+
+int LZ4_decompress_safe_usingDict(const char* source, char* dest, int compressedSize, int maxOutputSize, const char* dictStart, int dictSize)
+{
+ //return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, endOnInputSize, full, 0, usingExtDict, dictStart, dictSize);
+ return LZ4_decompress_usingDict_generic(source, dest, compressedSize, maxOutputSize, 1, dictStart, dictSize);
+}
+
+int LZ4_decompress_fast_usingDict(const char* source, char* dest, int originalSize, const char* dictStart, int dictSize)
+{
+ //return LZ4_decompress_generic(source, dest, 0, originalSize, endOnOutputSize, full, 0, usingExtDict, dictStart, dictSize);
+ return LZ4_decompress_usingDict_generic(source, dest, 0, originalSize, 0, dictStart, dictSize);
+}
+
+/* debug function */
+int LZ4_decompress_safe_forceExtDict(const char* source, char* dest, int compressedSize, int maxOutputSize, const char* dictStart, int dictSize)
+{
+ return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, endOnInputSize, full, 0, usingExtDict, dictStart, dictSize);
+}
+
+
+/***************************************************
+ Obsolete Functions
+***************************************************/
+/*
+These function names are deprecated and should no longer be used.
+They are only provided here for compatibility with older user programs.
+- LZ4_uncompress is totally equivalent to LZ4_decompress_fast
+- LZ4_uncompress_unknownOutputSize is totally equivalent to LZ4_decompress_safe
+*/
+int LZ4_uncompress (const char* source, char* dest, int outputSize) { return LZ4_decompress_fast(source, dest, outputSize); }
+int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize) { return LZ4_decompress_safe(source, dest, isize, maxOutputSize); }
+
+
+/* Obsolete Streaming functions */
+
+int LZ4_sizeofStreamState() { return LZ4_STREAMSIZE; }
+
+static void LZ4_init(LZ4_stream_t_internal* lz4ds, const BYTE* base)
+{
+ MEM_INIT(lz4ds, 0, LZ4_STREAMSIZE);
+ lz4ds->bufferStart = base;
+}
+
+int LZ4_resetStreamState(void* state, const char* inputBuffer)
+{
+ if ((((size_t)state) & 3) != 0) return 1; /* Error : pointer is not aligned on 4-bytes boundary */
+ LZ4_init((LZ4_stream_t_internal*)state, (const BYTE*)inputBuffer);
+ return 0;
+}
+
+void* LZ4_create (const char* inputBuffer)
+{
+ void* lz4ds = ALLOCATOR(4, LZ4_STREAMSIZE_U32);
+ LZ4_init ((LZ4_stream_t_internal*)lz4ds, (const BYTE*)inputBuffer);
+ return lz4ds;
+}
+
+char* LZ4_slideInputBuffer (void* LZ4_Data)
+{
+ LZ4_stream_t_internal* lz4ds = (LZ4_stream_t_internal*)LZ4_Data;
+
+ LZ4_saveDict((LZ4_stream_t*)LZ4_Data, (char*)lz4ds->bufferStart, 64 KB);
+
+ return (char*)(lz4ds->bufferStart + 64 KB);
+}
+
+/* Obsolete compresson functions using User-allocated state */
+
+int LZ4_sizeofState() { return LZ4_STREAMSIZE; }
+
+int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize)
+{
+ if (((size_t)(state)&3) != 0) return 0; /* Error : state is not aligned on 4-bytes boundary */
+ MEM_INIT(state, 0, LZ4_STREAMSIZE);
+
+ if (inputSize < (int)LZ4_64KLIMIT)
+ return LZ4_compress_generic(state, source, dest, inputSize, 0, notLimited, byU16, noDict, noDictIssue);
+ else
+ return LZ4_compress_generic(state, source, dest, inputSize, 0, notLimited, LZ4_64BITS ? byU32 : byPtr, noDict, noDictIssue);
+}
+
+int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize)
+{
+ if (((size_t)(state)&3) != 0) return 0; /* Error : state is not aligned on 4-bytes boundary */
+ MEM_INIT(state, 0, LZ4_STREAMSIZE);
+
+ if (inputSize < (int)LZ4_64KLIMIT)
+ return LZ4_compress_generic(state, source, dest, inputSize, maxOutputSize, limitedOutput, byU16, noDict, noDictIssue);
+ else
+ return LZ4_compress_generic(state, source, dest, inputSize, maxOutputSize, limitedOutput, LZ4_64BITS ? byU32 : byPtr, noDict, noDictIssue);
+}
+
+/* Obsolete streaming decompression functions */
+
+int LZ4_decompress_safe_withPrefix64k(const char* source, char* dest, int compressedSize, int maxOutputSize)
+{
+ return LZ4_decompress_generic(source, dest, compressedSize, maxOutputSize, endOnInputSize, full, 0, withPrefix64k, NULL, 64 KB);
+}
+
+int LZ4_decompress_fast_withPrefix64k(const char* source, char* dest, int originalSize)
+{
+ return LZ4_decompress_generic(source, dest, 0, originalSize, endOnOutputSize, full, 0, withPrefix64k, NULL, 64 KB);
+}
diff --git a/src/grt/fst/lz4.h b/src/grt/fst/lz4.h
new file mode 100644
index 000000000..44ada149e
--- /dev/null
+++ b/src/grt/fst/lz4.h
@@ -0,0 +1,323 @@
+/*
+ LZ4 - Fast LZ compression algorithm
+ Header File
+ Copyright (C) 2011-2014, Yann Collet.
+ BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following disclaimer
+ in the documentation and/or other materials provided with the
+ distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ You can contact the author at :
+ - LZ4 source repository : http://code.google.com/p/lz4/
+ - LZ4 public forum : https://groups.google.com/forum/#!forum/lz4c
+*/
+#pragma once
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+/*
+ * lz4.h provides raw compression format functions, for optimal performance and integration into programs.
+ * If you need to generate data using an inter-operable format (respecting the framing specification),
+ * please use lz4frame.h instead.
+*/
+
+/**************************************
+ Version
+**************************************/
+#define LZ4_VERSION_MAJOR 1 /* for major interface/format changes */
+#define LZ4_VERSION_MINOR 3 /* for minor interface/format changes */
+#define LZ4_VERSION_RELEASE 1 /* for tweaks, bug-fixes, or development */
+#define LZ4_VERSION_NUMBER (LZ4_VERSION_MAJOR *100*100 + LZ4_VERSION_MINOR *100 + LZ4_VERSION_RELEASE)
+int LZ4_versionNumber (void);
+
+/**************************************
+ Tuning parameter
+**************************************/
+/*
+ * LZ4_MEMORY_USAGE :
+ * Memory usage formula : N->2^N Bytes (examples : 10 -> 1KB; 12 -> 4KB ; 16 -> 64KB; 20 -> 1MB; etc.)
+ * Increasing memory usage improves compression ratio
+ * Reduced memory usage can improve speed, due to cache effect
+ * Default value is 14, for 16KB, which nicely fits into Intel x86 L1 cache
+ */
+#define LZ4_MEMORY_USAGE 14
+
+
+/**************************************
+ Simple Functions
+**************************************/
+
+int LZ4_compress (const char* source, char* dest, int sourceSize);
+int LZ4_decompress_safe (const char* source, char* dest, int compressedSize, int maxDecompressedSize);
+
+/*
+LZ4_compress() :
+ Compresses 'sourceSize' bytes from 'source' into 'dest'.
+ Destination buffer must be already allocated,
+ and must be sized to handle worst cases situations (input data not compressible)
+ Worst case size evaluation is provided by function LZ4_compressBound()
+ inputSize : Max supported value is LZ4_MAX_INPUT_SIZE
+ return : the number of bytes written in buffer dest
+ or 0 if the compression fails
+
+LZ4_decompress_safe() :
+ compressedSize : is obviously the source size
+ maxDecompressedSize : is the size of the destination buffer, which must be already allocated.
+ return : the number of bytes decompressed into the destination buffer (necessarily <= maxDecompressedSize)
+ If the destination buffer is not large enough, decoding will stop and output an error code (<0).
+ If the source stream is detected malformed, the function will stop decoding and return a negative result.
+ This function is protected against buffer overflow exploits,
+ and never writes outside of output buffer, nor reads outside of input buffer.
+ It is also protected against malicious data packets.
+*/
+
+
+/**************************************
+ Advanced Functions
+**************************************/
+#define LZ4_MAX_INPUT_SIZE 0x7E000000 /* 2 113 929 216 bytes */
+#define LZ4_COMPRESSBOUND(isize) ((unsigned int)(isize) > (unsigned int)LZ4_MAX_INPUT_SIZE ? 0 : (isize) + ((isize)/255) + 16)
+
+/*
+LZ4_compressBound() :
+ Provides the maximum size that LZ4 compression may output in a "worst case" scenario (input data not compressible)
+ This function is primarily useful for memory allocation purposes (output buffer size).
+ Macro LZ4_COMPRESSBOUND() is also provided for compilation-time evaluation (stack memory allocation for example).
+
+ isize : is the input size. Max supported value is LZ4_MAX_INPUT_SIZE
+ return : maximum output size in a "worst case" scenario
+ or 0, if input size is too large ( > LZ4_MAX_INPUT_SIZE)
+*/
+int LZ4_compressBound(int isize);
+
+
+/*
+LZ4_compress_limitedOutput() :
+ Compress 'sourceSize' bytes from 'source' into an output buffer 'dest' of maximum size 'maxOutputSize'.
+ If it cannot achieve it, compression will stop, and result of the function will be zero.
+ This saves time and memory on detecting non-compressible (or barely compressible) data.
+ This function never writes outside of provided output buffer.
+
+ sourceSize : Max supported value is LZ4_MAX_INPUT_VALUE
+ maxOutputSize : is the size of the destination buffer (which must be already allocated)
+ return : the number of bytes written in buffer 'dest'
+ or 0 if compression fails
+*/
+int LZ4_compress_limitedOutput (const char* source, char* dest, int sourceSize, int maxOutputSize);
+
+
+/*
+LZ4_compress_withState() :
+ Same compression functions, but using an externally allocated memory space to store compression state.
+ Use LZ4_sizeofState() to know how much memory must be allocated,
+ and then, provide it as 'void* state' to compression functions.
+*/
+int LZ4_sizeofState(void);
+int LZ4_compress_withState (void* state, const char* source, char* dest, int inputSize);
+int LZ4_compress_limitedOutput_withState (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
+
+
+/*
+LZ4_decompress_fast() :
+ originalSize : is the original and therefore uncompressed size
+ return : the number of bytes read from the source buffer (in other words, the compressed size)
+ If the source stream is detected malformed, the function will stop decoding and return a negative result.
+ Destination buffer must be already allocated. Its size must be a minimum of 'originalSize' bytes.
+ note : This function fully respect memory boundaries for properly formed compressed data.
+ It is a bit faster than LZ4_decompress_safe().
+ However, it does not provide any protection against intentionally modified data stream (malicious input).
+ Use this function in trusted environment only (data to decode comes from a trusted source).
+*/
+int LZ4_decompress_fast (const char* source, char* dest, int originalSize);
+
+
+/*
+LZ4_decompress_safe_partial() :
+ This function decompress a compressed block of size 'compressedSize' at position 'source'
+ into destination buffer 'dest' of size 'maxDecompressedSize'.
+ The function tries to stop decompressing operation as soon as 'targetOutputSize' has been reached,
+ reducing decompression time.
+ return : the number of bytes decoded in the destination buffer (necessarily <= maxDecompressedSize)
+ Note : this number can be < 'targetOutputSize' should the compressed block to decode be smaller.
+ Always control how many bytes were decoded.
+ If the source stream is detected malformed, the function will stop decoding and return a negative result.
+ This function never writes outside of output buffer, and never reads outside of input buffer. It is therefore protected against malicious data packets
+*/
+int LZ4_decompress_safe_partial (const char* source, char* dest, int compressedSize, int targetOutputSize, int maxDecompressedSize);
+
+
+/***********************************************
+ Experimental Streaming Compression Functions
+***********************************************/
+
+#define LZ4_STREAMSIZE_U32 ((1 << (LZ4_MEMORY_USAGE-2)) + 8)
+#define LZ4_STREAMSIZE (LZ4_STREAMSIZE_U32 * sizeof(unsigned int))
+/*
+ * LZ4_stream_t
+ * information structure to track an LZ4 stream.
+ * important : init this structure content before first use !
+ */
+typedef struct { unsigned int table[LZ4_STREAMSIZE_U32]; } LZ4_stream_t;
+
+/*
+ * LZ4_resetStream
+ * Use this function to init an allocated LZ4_stream_t structure
+ */
+void LZ4_resetStream (LZ4_stream_t* LZ4_streamPtr);
+
+/*
+ * If you prefer dynamic allocation methods,
+ * LZ4_createStream will allocate and initialize an LZ4_stream_t structure
+ * LZ4_freeStream releases its memory.
+ */
+LZ4_stream_t* LZ4_createStream(void);
+int LZ4_freeStream (LZ4_stream_t* LZ4_stream);
+
+/*
+ * LZ4_loadDict
+ * Use this function to load a static dictionary into LZ4_stream.
+ * Any previous data will be forgotten, only 'dictionary' will remain in memory.
+ * Loading a size of 0 is allowed.
+ * Return : 1 if OK, 0 if error
+ */
+int LZ4_loadDict (LZ4_stream_t* LZ4_stream, const char* dictionary, int dictSize);
+
+/*
+ * LZ4_compress_continue
+ * Compress data block 'source', using blocks compressed before as dictionary to improve compression ratio
+ * Previous data blocks are assumed to still be present at their previous location.
+ */
+int LZ4_compress_continue (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize);
+
+/*
+ * LZ4_compress_limitedOutput_continue
+ * Same as before, but also specify a maximum target compressed size (maxOutputSize)
+ * If objective cannot be met, compression exits, and returns a zero.
+ */
+int LZ4_compress_limitedOutput_continue (LZ4_stream_t* LZ4_stream, const char* source, char* dest, int inputSize, int maxOutputSize);
+
+/*
+ * LZ4_saveDict
+ * If previously compressed data block is not guaranteed to remain available at its memory location
+ * save it into a safer place (char* safeBuffer)
+ * Note : you don't need to call LZ4_loadDict() afterwards,
+ * dictionary is immediately usable, you can therefore call again LZ4_compress_continue()
+ * Return : dictionary size in bytes, or 0 if error
+ * Note : any dictSize > 64 KB will be interpreted as 64KB.
+ */
+int LZ4_saveDict (LZ4_stream_t* LZ4_stream, char* safeBuffer, int dictSize);
+
+
+/************************************************
+ Experimental Streaming Decompression Functions
+************************************************/
+
+#define LZ4_STREAMDECODESIZE_U32 4
+#define LZ4_STREAMDECODESIZE (LZ4_STREAMDECODESIZE_U32 * sizeof(unsigned int))
+/*
+ * LZ4_streamDecode_t
+ * information structure to track an LZ4 stream.
+ * important : init this structure content using LZ4_setStreamDecode or memset() before first use !
+ */
+typedef struct { unsigned int table[LZ4_STREAMDECODESIZE_U32]; } LZ4_streamDecode_t;
+
+/*
+ * LZ4_setStreamDecode
+ * Use this function to instruct where to find the dictionary.
+ * This function can be used to specify a static dictionary,
+ * or to instruct where to find some previously decoded data saved into a different memory space.
+ * Setting a size of 0 is allowed (same effect as no dictionary).
+ * Return : 1 if OK, 0 if error
+ */
+int LZ4_setStreamDecode (LZ4_streamDecode_t* LZ4_streamDecode, const char* dictionary, int dictSize);
+
+/*
+ * If you prefer dynamic allocation methods,
+ * LZ4_createStreamDecode will allocate and initialize an LZ4_streamDecode_t structure
+ * LZ4_freeStreamDecode releases its memory.
+ */
+LZ4_streamDecode_t* LZ4_createStreamDecode(void);
+int LZ4_freeStreamDecode (LZ4_streamDecode_t* LZ4_stream);
+
+/*
+*_continue() :
+ These decoding functions allow decompression of multiple blocks in "streaming" mode.
+ Previously decoded blocks must still be available at the memory position where they were decoded.
+ If it's not possible, save the relevant part of decoded data into a safe buffer,
+ and indicate where its new address using LZ4_setStreamDecode()
+*/
+int LZ4_decompress_safe_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int compressedSize, int maxDecompressedSize);
+int LZ4_decompress_fast_continue (LZ4_streamDecode_t* LZ4_streamDecode, const char* source, char* dest, int originalSize);
+
+
+/*
+Advanced decoding functions :
+*_usingDict() :
+ These decoding functions work the same as
+ a combination of LZ4_setDictDecode() followed by LZ4_decompress_x_continue()
+ They don't use nor update an LZ4_streamDecode_t structure.
+*/
+int LZ4_decompress_safe_usingDict (const char* source, char* dest, int compressedSize, int maxDecompressedSize, const char* dictStart, int dictSize);
+int LZ4_decompress_fast_usingDict (const char* source, char* dest, int originalSize, const char* dictStart, int dictSize);
+
+
+
+/**************************************
+ Obsolete Functions
+**************************************/
+/*
+Obsolete decompression functions
+These function names are deprecated and should no longer be used.
+They are only provided here for compatibility with older user programs.
+- LZ4_uncompress is the same as LZ4_decompress_fast
+- LZ4_uncompress_unknownOutputSize is the same as LZ4_decompress_safe
+These function prototypes are now disabled; uncomment them if you really need them.
+It is highly recommended to stop using these functions and migrated to newer ones */
+/* int LZ4_uncompress (const char* source, char* dest, int outputSize); */
+/* int LZ4_uncompress_unknownOutputSize (const char* source, char* dest, int isize, int maxOutputSize); */
+
+/*
+ * If you prefer dynamic allocation methods,
+ * LZ4_createStreamDecode()
+ * provides a pointer (void*) towards an initialized LZ4_streamDecode_t structure.
+ * LZ4_free just frees it.
+ */
+/* void* LZ4_createStreamDecode(void); */
+/*int LZ4_free (void* LZ4_stream); yes, it's the same one as for compression */
+
+/* Obsolete streaming functions; use new streaming interface whenever possible */
+void* LZ4_create (const char* inputBuffer);
+int LZ4_sizeofStreamState(void);
+int LZ4_resetStreamState(void* state, const char* inputBuffer);
+char* LZ4_slideInputBuffer (void* state);
+
+/* Obsolete streaming decoding functions */
+int LZ4_decompress_safe_withPrefix64k (const char* source, char* dest, int compressedSize, int maxOutputSize);
+int LZ4_decompress_fast_withPrefix64k (const char* source, char* dest, int originalSize);
+
+
+#if defined (__cplusplus)
+}
+#endif
diff --git a/src/grt/grt-fst.adb b/src/grt/grt-fst.adb
new file mode 100644
index 000000000..bd7b9a940
--- /dev/null
+++ b/src/grt/grt-fst.adb
@@ -0,0 +1,474 @@
+-- GHDL Run Time (GRT) - FST generator.
+-- Copyright (C) 2014 Tristan Gingold
+--
+-- GHDL is free software; you can redistribute it and/or modify it under
+-- the terms of the GNU General Public License as published by the Free
+-- Software Foundation; either version 2, or (at your option) any later
+-- version.
+--
+-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
+-- WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+-- for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with GCC; see the file COPYING. If not, write to the Free
+-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+-- 02111-1307, USA.
+--
+-- As a special exception, if other files instantiate generics from this
+-- unit, or you link this unit with other files to produce an executable,
+-- this unit does not by itself cause the resulting executable to be
+-- covered by the GNU General Public License. This exception does not
+-- however invalidate any other reasons why the executable file might be
+-- covered by the GNU Public License.
+with Interfaces; use Interfaces;
+with Interfaces.C;
+with System; use System;
+with Grt.Types; use Grt.Types;
+with Grt.Fst_Api; use Grt.Fst_Api;
+with Grt.Vcd; use Grt.Vcd;
+with Grt.Avhpi; use Grt.Avhpi;
+with System.Storage_Elements; -- Work around GNAT bug.
+pragma Unreferenced (System.Storage_Elements);
+with Grt.Errors; use Grt.Errors;
+with Grt.Signals; use Grt.Signals;
+with Grt.Table;
+with Grt.Astdio; use Grt.Astdio;
+with Grt.Hooks; use Grt.Hooks;
+with Grt.Rtis; use Grt.Rtis;
+with Grt.Rtis_Types; use Grt.Rtis_Types;
+with Grt.Vstrings;
+pragma Elaborate_All (Grt.Table);
+
+package body Grt.Fst is
+ Context : fstContext := Null_fstContext;
+
+ -- Index type of the table of vcd variables to dump.
+ type Fst_Index_Type is new Integer;
+
+ -- Return TRUE if OPT is an option for FST.
+ function Fst_Option (Opt : String) return Boolean
+ is
+ F : constant Natural := Opt'First;
+ Fst_Filename : String_Access;
+ begin
+ if Opt'Length < 6 or else Opt (F .. F + 5) /= "--fst=" then
+ return False;
+ end if;
+ if Context /= Null_fstContext then
+ Error ("--fst: file already set");
+ return True;
+ end if;
+
+ -- Add an extra NUL character.
+ Fst_Filename := new String (1 .. Opt'Length - 6 + 1);
+ Fst_Filename (1 .. Opt'Length - 6) := Opt (F + 6 .. Opt'Last);
+ Fst_Filename (Fst_Filename'Last) := NUL;
+
+ Context := fstWriterCreate
+ (To_Ghdl_C_String (Fst_Filename.all'Address), 1);
+ if Context = Null_fstContext then
+ Error_C ("fst: cannot open ");
+ Error_E (Fst_Filename (Fst_Filename'First .. Fst_Filename'Last - 1));
+ end if;
+ return True;
+ end Fst_Option;
+
+ procedure Fst_Help is
+ begin
+ Put_Line (" --fst=FILENAME dump signal values into an FST file");
+ end Fst_Help;
+
+ -- Called before elaboration.
+ procedure Fst_Init
+ is
+ Version : constant String := "GHDL FST v0" & NUL;
+ begin
+ if Context = Null_fstContext then
+ return;
+ end if;
+
+ fstWriterSetFileType (Context, FST_FT_VHDL);
+ fstWriterSetPackType (Context, FST_WR_PT_LZ4);
+ fstWriterSetTimescale (Context, -15); -- fs
+ fstWriterSetVersion (Context, To_Ghdl_C_String (Version'Address));
+ fstWriterSetRepackOnClose (Context, 1);
+ fstWriterSetParallelMode (Context, 0);
+ end Fst_Init;
+
+ type Fst_Sig_Info is record
+ Wire : Verilog_Wire_Info;
+ Hand : fstHandle;
+ end record;
+
+ package Fst_Table is new Grt.Table
+ (Table_Component_Type => Fst_Sig_Info,
+ Table_Index_Type => Fst_Index_Type,
+ Table_Low_Bound => 0,
+ Table_Initial => 32);
+
+ procedure Avhpi_Error (Err : AvhpiErrorT)
+ is
+ pragma Unreferenced (Err);
+ begin
+ Put_Line ("Fst.Avhpi_Error!");
+ end Avhpi_Error;
+
+ procedure Fst_Add_Signal (Sig : VhpiHandleT)
+ is
+ Vcd_El : Verilog_Wire_Info;
+ Vt : fstVarType;
+ Sdt : fstSupplementalDataType;
+ Dir : fstVarDir;
+ Len : Interfaces.C.unsigned;
+ Name : String (1 .. 128);
+ Name_Len : Natural;
+ Hand : fstHandle;
+ begin
+ Get_Verilog_Wire (Sig, Vcd_El);
+
+ if Vcd_El.Kind = Vcd_Bad then
+ -- Not handled.
+ return;
+ end if;
+
+
+ case Vcd_El.Kind is
+ when Vcd_Bad =>
+ raise Program_Error;
+ when Vcd_Bool =>
+ Vt := FST_VT_VCD_REG;
+ Len := 1;
+ Sdt := FST_SDT_VHDL_BOOLEAN;
+ when Vcd_Integer32 =>
+ Vt := FST_VT_VCD_INTEGER;
+ Len := 1;
+ Sdt := FST_SDT_VHDL_INTEGER;
+ when Vcd_Float64 =>
+ Vt := FST_VT_VCD_REAL;
+ Len := 1;
+ Sdt := FST_SDT_VHDL_REAL;
+ when Vcd_Bit =>
+ Vt := FST_VT_VCD_REG;
+ Len := 1;
+ Sdt := FST_SDT_VHDL_BIT;
+ when Vcd_Stdlogic =>
+ Vt := FST_VT_VCD_REG;
+ Len := 1;
+ Sdt := FST_SDT_VHDL_STD_LOGIC;
+ when Vcd_Bitvector =>
+ Vt := FST_VT_VCD_REG;
+ Len := Interfaces.C.unsigned (Vcd_El.Irange.I32.Len);
+ Sdt := FST_SDT_VHDL_BIT_VECTOR;
+ when Vcd_Stdlogic_Vector =>
+ Vt := FST_VT_VCD_REG;
+ Len := Interfaces.C.unsigned (Vcd_El.Irange.I32.Len);
+ Sdt := FST_SDT_VHDL_STD_LOGIC_VECTOR;
+ end case;
+
+ if Vhpi_Get_Kind (Sig) = VhpiPortDeclK then
+ case Vhpi_Get_Mode (Sig) is
+ when VhpiInMode =>
+ Dir := FST_VD_INPUT;
+ when VhpiInoutMode =>
+ Dir := FST_VD_INOUT;
+ when VhpiBufferMode =>
+ Dir := FST_VD_BUFFER;
+ when VhpiLinkageMode =>
+ Dir := FST_VD_LINKAGE;
+ when VhpiOutMode =>
+ Dir := FST_VD_OUTPUT;
+ when VhpiErrorMode =>
+ Dir := FST_VD_IMPLICIT;
+ end case;
+ else
+ Dir := FST_VD_IMPLICIT;
+ end if;
+
+ Vhpi_Get_Str (VhpiNameP, Sig, Name, Name_Len);
+ if Name_Len >= Name'Length
+ or else Vcd_El.Irange /= null
+ then
+ declare
+ Name2 : String (1 .. Name_Len + 3 + 2 * 11 + 1);
+
+ procedure Append (N : Ghdl_I32)
+ is
+ Num : String (1 .. 11);
+ Num_First : Natural;
+ Num_Len : Natural;
+ begin
+ Grt.Vstrings.To_String (Num, Num_First, N);
+ Num_Len := Num'Last - Num_First + 1;
+ Name2 (Name_Len + 1 .. Name_Len + Num_Len) :=
+ Num (Num_First .. Num'Last);
+ Name_Len := Name_Len + Num_Len;
+ end Append;
+ begin
+ Vhpi_Get_Str (VhpiNameP, Sig, Name2, Name_Len);
+ if Vcd_El.Irange /= null then
+ Name2 (Name_Len + 1) := '[';
+ Name_Len := Name_Len + 1;
+ Append (Vcd_El.Irange.I32.Left);
+ Name2 (Name_Len + 1) := ':';
+ Name_Len := Name_Len + 1;
+ Append (Vcd_El.Irange.I32.Right);
+ Name2 (Name_Len + 1) := ']';
+ Name_Len := Name_Len + 1;
+ end if;
+ Name2 (Name_Len + 1) := NUL;
+ Name_Len := Name_Len + 1;
+
+ Hand := fstWriterCreateVar2
+ (Context, Vt, Dir, Len, To_Ghdl_C_String (Name2'Address),
+ Null_fstHandle, null, FST_SVT_VHDL_SIGNAL, Sdt);
+ end;
+ else
+ Name (Name_Len) := NUL;
+ Hand := fstWriterCreateVar2
+ (Context, Vt, Dir, Len, To_Ghdl_C_String (Name'Address),
+ Null_fstHandle, null, FST_SVT_VHDL_SIGNAL, Sdt);
+ end if;
+
+ Fst_Table.Append (Fst_Sig_Info'(Wire => Vcd_El, Hand => Hand));
+ end Fst_Add_Signal;
+
+ procedure Fst_Put_Hierarchy (Inst : VhpiHandleT);
+
+ procedure Fst_Put_Scope (Scope : fstScopeType; Decl : VhpiHandleT)
+ is
+ Name : String (1 .. 128);
+ Name_Len : Integer;
+ begin
+ Vhpi_Get_Str (VhpiNameP, Decl, Name, Name_Len);
+ if Name_Len < Name'Last then
+ Name (Name_Len + 1) := NUL;
+ else
+ -- Truncate
+ Name (Name'Last) := NUL;
+ end if;
+
+ fstWriterSetScope
+ (Context, Scope, To_Ghdl_C_String (Name'Address), null);
+ Fst_Put_Hierarchy (Decl);
+ fstWriterSetUpscope (Context);
+ end Fst_Put_Scope;
+
+ procedure Fst_Put_Hierarchy (Inst : VhpiHandleT)
+ is
+ Decl_It : VhpiHandleT;
+ Decl : VhpiHandleT;
+ Error : AvhpiErrorT;
+ begin
+ Vhpi_Iterator (VhpiDecls, Inst, Decl_It, Error);
+ if Error /= AvhpiErrorOk then
+ Avhpi_Error (Error);
+ return;
+ end if;
+
+ -- Extract signals.
+ loop
+ Vhpi_Scan (Decl_It, Decl, Error);
+ exit when Error = AvhpiErrorIteratorEnd;
+ if Error /= AvhpiErrorOk then
+ Avhpi_Error (Error);
+ return;
+ end if;
+
+ case Vhpi_Get_Kind (Decl) is
+ when VhpiPortDeclK
+ | VhpiSigDeclK =>
+ Fst_Add_Signal (Decl);
+ when others =>
+ null;
+ end case;
+ end loop;
+
+ -- Extract sub-scopes.
+ Vhpi_Iterator (VhpiInternalRegions, Inst, Decl_It, Error);
+ if Error /= AvhpiErrorOk then
+ Avhpi_Error (Error);
+ return;
+ end if;
+
+ loop
+ Vhpi_Scan (Decl_It, Decl, Error);
+ exit when Error = AvhpiErrorIteratorEnd;
+ if Error /= AvhpiErrorOk then
+ Avhpi_Error (Error);
+ return;
+ end if;
+
+ case Vhpi_Get_Kind (Decl) is
+ when VhpiIfGenerateK =>
+ Fst_Put_Scope (FST_ST_VHDL_IF_GENERATE, Decl);
+ when VhpiForGenerateK =>
+ Fst_Put_Scope (FST_ST_VHDL_FOR_GENERATE, Decl);
+ when VhpiBlockStmtK =>
+ Fst_Put_Scope (FST_ST_VHDL_BLOCK, Decl);
+ when VhpiCompInstStmtK =>
+ Fst_Put_Scope (FST_ST_VHDL_ARCHITECTURE, Decl);
+ when others =>
+ null;
+ end case;
+ end loop;
+ end Fst_Put_Hierarchy;
+
+ procedure Fst_Put_Integer32 (Hand : fstHandle; V : Ghdl_U32)
+ is
+ Str : String (1 .. 32);
+ Val : Ghdl_U32;
+ begin
+ Val := V;
+ for I in Str'Range loop
+ Str (I) := Character'Val (Character'Pos ('0') + (Val and 1));
+ Val := Val / 2;
+ end loop;
+ fstWriterEmitValueChange (Context, Hand, Str'Address);
+ end Fst_Put_Integer32;
+
+ procedure Fst_Put_Var (I : Fst_Index_Type)
+ is
+ From_Bit : constant array (Ghdl_B1) of Character := "01";
+ type Map_Type is array (Ghdl_E8 range 0 .. 8) of Character;
+ From_Std : constant Map_Type := "UX01ZWLH-";
+ Sig : Signal_Arr_Ptr;
+ V : Fst_Sig_Info renames Fst_Table.Table (I);
+ Len : Ghdl_Index_Type;
+ Hand : constant fstHandle := V.Hand;
+ begin
+ Sig := To_Signal_Arr_Ptr (V.Wire.Addr);
+ if V.Wire.Irange = null then
+ Len := 1;
+ else
+ Len := V.Wire.Irange.I32.Len;
+ end if;
+ case V.Wire.Val is
+ when Vcd_Effective =>
+ case V.Wire.Kind is
+ when Vcd_Bit
+ | Vcd_Bool
+ | Vcd_Bitvector =>
+ declare
+ Str : Std_String_Uncons (0 .. Len - 1);
+ begin
+ for I in Str'Range loop
+ Str (I) := From_Bit (Sig (I).Value.B1);
+ end loop;
+ fstWriterEmitValueChange (Context, Hand, Str'Address);
+ end;
+ when Vcd_Stdlogic
+ | Vcd_Stdlogic_Vector =>
+ declare
+ Str : Std_String_Uncons (0 .. Len - 1);
+ begin
+ for I in Str'Range loop
+ Str (I) := From_Std (Sig (I).Value.E8);
+ end loop;
+ fstWriterEmitValueChange (Context, Hand, Str'Address);
+ end;
+ when Vcd_Integer32 =>
+ Fst_Put_Integer32 (Hand, Sig (0).Value.E32);
+ when Vcd_Float64 =>
+ null;
+ when Vcd_Bad =>
+ null;
+ end case;
+ when Vcd_Driving =>
+ case V.Wire.Kind is
+ when Vcd_Bit
+ | Vcd_Bool
+ | Vcd_Bitvector =>
+ declare
+ Str : Std_String_Uncons (0 .. Len - 1);
+ begin
+ for I in Str'Range loop
+ Str (I) := From_Bit (Sig (I).Driving_Value.B1);
+ end loop;
+ fstWriterEmitValueChange (Context, Hand, Str'Address);
+ end;
+ when Vcd_Stdlogic
+ | Vcd_Stdlogic_Vector =>
+ declare
+ Str : Std_String_Uncons (0 .. Len - 1);
+ begin
+ for I in Str'Range loop
+ Str (I) := From_Std (Sig (I).Driving_Value.E8);
+ end loop;
+ fstWriterEmitValueChange (Context, Hand, Str'Address);
+ end;
+ when Vcd_Integer32 =>
+ Fst_Put_Integer32 (Hand, Sig (0).Driving_Value.E32);
+ when Vcd_Float64 =>
+ null;
+ when Vcd_Bad =>
+ null;
+ end case;
+ end case;
+ end Fst_Put_Var;
+
+ procedure Fst_Cycle;
+
+ -- Called after elaboration.
+ procedure Fst_Start
+ is
+ Root : VhpiHandleT;
+ begin
+ -- Do nothing if there is no VCD file to generate.
+ if Context = Null_fstContext then
+ return;
+ end if;
+
+ -- Be sure the RTI of std_ulogic is set.
+ Search_Types_RTI;
+
+ -- Put hierarchy.
+ Get_Root_Inst (Root);
+ Fst_Put_Hierarchy (Root);
+
+ Register_Cycle_Hook (Fst_Cycle'Access);
+ end Fst_Start;
+
+ -- Called before each non delta cycle.
+ procedure Fst_Cycle is
+ begin
+ -- Disp values.
+ fstWriterEmitTimeChange (Context, Unsigned_64 (Cycle_Time));
+
+ if Cycle_Time = 0 then
+ -- Disp all values.
+ for I in Fst_Table.First .. Fst_Table.Last loop
+ Fst_Put_Var (I);
+ end loop;
+ else
+ -- Disp only values changed.
+ for I in Fst_Table.First .. Fst_Table.Last loop
+ if Verilog_Wire_Changed (Fst_Table.Table (I).Wire, Cycle_Time) then
+ Fst_Put_Var (I);
+ end if;
+ end loop;
+ end if;
+ end Fst_Cycle;
+
+ -- Called at the end of the simulation.
+ procedure Fst_End is
+ begin
+ if Context /= Null_fstContext then
+ fstWriterClose (Context);
+ Context := Null_fstContext;
+ end if;
+ end Fst_End;
+
+ Fst_Hooks : aliased constant Hooks_Type :=
+ (Option => Fst_Option'Access,
+ Help => Fst_Help'Access,
+ Init => Fst_Init'Access,
+ Start => Fst_Start'Access,
+ Finish => Fst_End'Access);
+
+ procedure Register is
+ begin
+ Register_Hooks (Fst_Hooks'Access);
+ end Register;
+end Grt.Fst;
diff --git a/src/grt/grt-fst.ads b/src/grt/grt-fst.ads
new file mode 100644
index 000000000..81b6abd97
--- /dev/null
+++ b/src/grt/grt-fst.ads
@@ -0,0 +1,28 @@
+-- GHDL Run Time (GRT) - FST generator.
+-- Copyright (C) 2014 Tristan Gingold
+--
+-- GHDL is free software; you can redistribute it and/or modify it under
+-- the terms of the GNU General Public License as published by the Free
+-- Software Foundation; either version 2, or (at your option) any later
+-- version.
+--
+-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
+-- WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+-- for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with GCC; see the file COPYING. If not, write to the Free
+-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+-- 02111-1307, USA.
+--
+-- As a special exception, if other files instantiate generics from this
+-- unit, or you link this unit with other files to produce an executable,
+-- this unit does not by itself cause the resulting executable to be
+-- covered by the GNU General Public License. This exception does not
+-- however invalidate any other reasons why the executable file might be
+-- covered by the GNU Public License.
+
+package Grt.Fst is
+ procedure Register;
+end Grt.Fst;
diff --git a/src/grt/grt-fst_api.ads b/src/grt/grt-fst_api.ads
new file mode 100644
index 000000000..ba0ec0c5d
--- /dev/null
+++ b/src/grt/grt-fst_api.ads
@@ -0,0 +1,353 @@
+with Interfaces; use Interfaces;
+with Interfaces.C; use Interfaces.C;
+with System;
+with Grt.Types; use Grt.Types;
+
+package Grt.Fst_Api is
+
+ subtype fstHandle is unsigned;
+ Null_fstHandle : constant fstHandle := 0;
+
+ type fstWriterPackType is
+ (FST_WR_PT_ZLIB,
+ FST_WR_PT_FASTLZ,
+ FST_WR_PT_LZ4);
+ pragma Convention (C, fstWriterPackType);
+
+ subtype fstFileType is unsigned;
+ FST_FT_MIN : constant fstFileType := 0;
+ FST_FT_VERILOG : constant fstFileType := 0;
+ FST_FT_VHDL : constant fstFileType := 1;
+ FST_FT_VERILOG_VHDL : constant fstFileType := 2;
+ FST_FT_MAX : constant fstFileType := 2;
+
+ subtype fstBlockType is unsigned;
+ FST_BL_HDR : constant fstBlockType := 0;
+ FST_BL_VCDATA : constant fstBlockType := 1;
+ FST_BL_BLACKOUT : constant fstBlockType := 2;
+ FST_BL_GEOM : constant fstBlockType := 3;
+ FST_BL_HIER : constant fstBlockType := 4;
+ FST_BL_VCDATA_DYN_ALIAS : constant fstBlockType := 5;
+ FST_BL_HIER_LZ4 : constant fstBlockType := 6;
+ FST_BL_HIER_LZ4DUO : constant fstBlockType := 7;
+ FST_BL_VCDATA_DYN_ALIAS2 : constant fstBlockType := 8;
+ FST_BL_ZWRAPPER : constant fstBlockType := 254;
+ FST_BL_SKIP : constant fstBlockType := 255;
+
+ subtype fstScopeType is unsigned;
+ FST_ST_MIN : constant fstScopeType := 0;
+ FST_ST_VCD_MODULE : constant fstScopeType := 0;
+ FST_ST_VCD_TASK : constant fstScopeType := 1;
+ FST_ST_VCD_FUNCTION : constant fstScopeType := 2;
+ FST_ST_VCD_BEGIN : constant fstScopeType := 3;
+ FST_ST_VCD_FORK : constant fstScopeType := 4;
+ FST_ST_VCD_GENERATE : constant fstScopeType := 5;
+ FST_ST_VCD_STRUCT : constant fstScopeType := 6;
+ FST_ST_VCD_UNION : constant fstScopeType := 7;
+ FST_ST_VCD_CLASS : constant fstScopeType := 8;
+ FST_ST_VCD_INTERFACE : constant fstScopeType := 9;
+ FST_ST_VCD_PACKAGE : constant fstScopeType := 10;
+ FST_ST_VCD_PROGRAM : constant fstScopeType := 11;
+ FST_ST_VHDL_ARCHITECTURE : constant fstScopeType := 12;
+ FST_ST_VHDL_PROCEDURE : constant fstScopeType := 13;
+ FST_ST_VHDL_FUNCTION : constant fstScopeType := 14;
+ FST_ST_VHDL_RECORD : constant fstScopeType := 15;
+ FST_ST_VHDL_PROCESS : constant fstScopeType := 16;
+ FST_ST_VHDL_BLOCK : constant fstScopeType := 17;
+ FST_ST_VHDL_FOR_GENERATE : constant fstScopeType := 18;
+ FST_ST_VHDL_IF_GENERATE : constant fstScopeType := 19;
+ FST_ST_VHDL_GENERATE : constant fstScopeType := 20;
+ FST_ST_VHDL_PACKAGE : constant fstScopeType := 21;
+ FST_ST_MAX : constant fstScopeType := 21;
+ FST_ST_GEN_ATTRBEGIN : constant fstScopeType := 252;
+ FST_ST_GEN_ATTREND : constant fstScopeType := 253;
+ FST_ST_VCD_SCOPE : constant fstScopeType := 254;
+ FST_ST_VCD_UPSCOPE : constant fstScopeType := 255;
+
+ subtype fstVarType is unsigned;
+ FST_VT_MIN : constant fstVarType := 0;
+ FST_VT_VCD_EVENT : constant fstVarType := 0;
+ FST_VT_VCD_INTEGER : constant fstVarType := 1;
+ FST_VT_VCD_PARAMETER : constant fstVarType := 2;
+ FST_VT_VCD_REAL : constant fstVarType := 3;
+ FST_VT_VCD_REAL_PARAMETER : constant fstVarType := 4;
+ FST_VT_VCD_REG : constant fstVarType := 5;
+ FST_VT_VCD_SUPPLY0 : constant fstVarType := 6;
+ FST_VT_VCD_SUPPLY1 : constant fstVarType := 7;
+ FST_VT_VCD_TIME : constant fstVarType := 8;
+ FST_VT_VCD_TRI : constant fstVarType := 9;
+ FST_VT_VCD_TRIAND : constant fstVarType := 10;
+ FST_VT_VCD_TRIOR : constant fstVarType := 11;
+ FST_VT_VCD_TRIREG : constant fstVarType := 12;
+ FST_VT_VCD_TRI0 : constant fstVarType := 13;
+ FST_VT_VCD_TRI1 : constant fstVarType := 14;
+ FST_VT_VCD_WAND : constant fstVarType := 15;
+ FST_VT_VCD_WIRE : constant fstVarType := 16;
+ FST_VT_VCD_WOR : constant fstVarType := 17;
+ FST_VT_VCD_PORT : constant fstVarType := 18;
+ FST_VT_VCD_SPARRAY : constant fstVarType := 19;
+ FST_VT_VCD_REALTIME : constant fstVarType := 20;
+ FST_VT_GEN_STRING : constant fstVarType := 21;
+ FST_VT_SV_BIT : constant fstVarType := 22;
+ FST_VT_SV_LOGIC : constant fstVarType := 23;
+ FST_VT_SV_INT : constant fstVarType := 24;
+ FST_VT_SV_SHORTINT : constant fstVarType := 25;
+ FST_VT_SV_LONGINT : constant fstVarType := 26;
+ FST_VT_SV_BYTE : constant fstVarType := 27;
+ FST_VT_SV_ENUM : constant fstVarType := 28;
+ FST_VT_SV_SHORTREAL : constant fstVarType := 29;
+ FST_VT_MAX : constant fstVarType := 29;
+
+ subtype fstVarDir is unsigned;
+ FST_VD_MIN : constant fstVarDir := 0;
+ FST_VD_IMPLICIT : constant fstVarDir := 0;
+ FST_VD_INPUT : constant fstVarDir := 1;
+ FST_VD_OUTPUT : constant fstVarDir := 2;
+ FST_VD_INOUT : constant fstVarDir := 3;
+ FST_VD_BUFFER : constant fstVarDir := 4;
+ FST_VD_LINKAGE : constant fstVarDir := 5;
+ FST_VD_MAX : constant fstVarDir := 5;
+
+ subtype fstHierType is unsigned;
+ FST_HT_MIN : constant fstHierType := 0;
+ FST_HT_SCOPE : constant fstHierType := 0;
+ FST_HT_UPSCOPE : constant fstHierType := 1;
+ FST_HT_VAR : constant fstHierType := 2;
+ FST_HT_ATTRBEGIN : constant fstHierType := 3;
+ FST_HT_ATTREND : constant fstHierType := 4;
+ FST_HT_MAX : constant fstHierType := 4;
+
+ subtype fstAttrType is unsigned;
+ FST_AT_MIN : constant fstAttrType := 0;
+ FST_AT_MISC : constant fstAttrType := 0;
+ FST_AT_ARRAY : constant fstAttrType := 1;
+ FST_AT_ENUM : constant fstAttrType := 2;
+ FST_AT_PACK : constant fstAttrType := 3;
+ FST_AT_MAX : constant fstAttrType := 3;
+
+ subtype fstMiscType is unsigned;
+ FST_MT_MIN : constant fstMiscType := 0;
+ FST_MT_COMMENT : constant fstMiscType := 0;
+ FST_MT_ENVVAR : constant fstMiscType := 1;
+ FST_MT_SUPVAR : constant fstMiscType := 2;
+ FST_MT_PATHNAME : constant fstMiscType := 3;
+ FST_MT_SOURCESTEM : constant fstMiscType := 4;
+ FST_MT_SOURCEISTEM : constant fstMiscType := 5;
+ FST_MT_UNKNOWN : constant fstMiscType := 6;
+ FST_MT_MAX : constant fstMiscType := 6;
+
+ subtype fstArrayType is unsigned;
+ FST_AR_MIN : constant fstArrayType := 0;
+ FST_AR_NONE : constant fstArrayType := 0;
+ FST_AR_UNPACKED : constant fstArrayType := 1;
+ FST_AR_PACKED : constant fstArrayType := 2;
+ FST_AR_SPARSE : constant fstArrayType := 3;
+ FST_AR_MAX : constant fstArrayType := 3;
+
+ subtype fstEnumValueType is unsigned;
+ FST_EV_SV_INTEGER : constant fstEnumValueType := 0;
+ FST_EV_SV_BIT : constant fstEnumValueType := 1;
+ FST_EV_SV_LOGIC : constant fstEnumValueType := 2;
+ FST_EV_SV_INT : constant fstEnumValueType := 3;
+ FST_EV_SV_SHORTINT : constant fstEnumValueType := 4;
+ FST_EV_SV_LONGINT : constant fstEnumValueType := 5;
+ FST_EV_SV_BYTE : constant fstEnumValueType := 6;
+ FST_EV_SV_UNSIGNED_INTEGER : constant fstEnumValueType := 7;
+ FST_EV_SV_UNSIGNED_BIT : constant fstEnumValueType := 8;
+ FST_EV_SV_UNSIGNED_LOGIC : constant fstEnumValueType := 9;
+ FST_EV_SV_UNSIGNED_INT : constant fstEnumValueType := 10;
+ FST_EV_SV_UNSIGNED_SHORTINT : constant fstEnumValueType := 11;
+ FST_EV_SV_UNSIGNED_LONGINT : constant fstEnumValueType := 12;
+ FST_EV_SV_UNSIGNED_BYTE : constant fstEnumValueType := 13;
+ FST_EV_MAX : constant fstEnumValueType := 13;
+
+ subtype fstPackType is unsigned;
+ FST_PT_NONE : constant fstPackType := 0;
+ FST_PT_UNPACKED : constant fstPackType := 1;
+ FST_PT_PACKED : constant fstPackType := 2;
+ FST_PT_TAGGED_PACKED : constant fstPackType := 3;
+ FST_PT_MAX : constant fstPackType := 3;
+
+ subtype fstSupplementalVarType is unsigned;
+ FST_SVT_MIN : constant fstSupplementalVarType := 0;
+ FST_SVT_NONE : constant fstSupplementalVarType := 0;
+ FST_SVT_VHDL_SIGNAL : constant fstSupplementalVarType := 1;
+ FST_SVT_VHDL_VARIABLE : constant fstSupplementalVarType := 2;
+ FST_SVT_VHDL_CONSTANT : constant fstSupplementalVarType := 3;
+ FST_SVT_VHDL_FILE : constant fstSupplementalVarType := 4;
+ FST_SVT_VHDL_MEMORY : constant fstSupplementalVarType := 5;
+ FST_SVT_MAX : constant fstSupplementalVarType := 5;
+
+ subtype fstSupplementalDataType is unsigned;
+ FST_SDT_MIN : constant fstSupplementalDataType := 0;
+ FST_SDT_NONE : constant fstSupplementalDataType := 0;
+ FST_SDT_VHDL_BOOLEAN : constant fstSupplementalDataType := 1;
+ FST_SDT_VHDL_BIT : constant fstSupplementalDataType := 2;
+ FST_SDT_VHDL_BIT_VECTOR : constant fstSupplementalDataType := 3;
+ FST_SDT_VHDL_STD_ULOGIC : constant fstSupplementalDataType := 4;
+ FST_SDT_VHDL_STD_ULOGIC_VECTOR : constant fstSupplementalDataType := 5;
+ FST_SDT_VHDL_STD_LOGIC : constant fstSupplementalDataType := 6;
+ FST_SDT_VHDL_STD_LOGIC_VECTOR : constant fstSupplementalDataType := 7;
+ FST_SDT_VHDL_UNSIGNED : constant fstSupplementalDataType := 8;
+ FST_SDT_VHDL_SIGNED : constant fstSupplementalDataType := 9;
+ FST_SDT_VHDL_INTEGER : constant fstSupplementalDataType := 10;
+ FST_SDT_VHDL_REAL : constant fstSupplementalDataType := 11;
+ FST_SDT_VHDL_NATURAL : constant fstSupplementalDataType := 12;
+ FST_SDT_VHDL_POSITIVE : constant fstSupplementalDataType := 13;
+ FST_SDT_VHDL_TIME : constant fstSupplementalDataType := 14;
+ FST_SDT_VHDL_CHARACTER : constant fstSupplementalDataType := 15;
+ FST_SDT_VHDL_STRING : constant fstSupplementalDataType := 16;
+ FST_SDT_MAX : constant fstSupplementalDataType := 16;
+ FST_SDT_SVT_SHIFT_COUNT : constant fstSupplementalDataType := 10;
+ FST_SDT_ABS_MAX : constant fstSupplementalDataType := 1023;
+
+ type fstContext is new System.Address;
+ Null_fstContext : constant fstContext := fstContext (System.Null_Address);
+
+ procedure fstWriterClose (ctx : fstContext);
+ pragma Import (C, fstWriterClose, "fstWriterClose");
+
+ function fstWriterCreate (nam : Ghdl_C_String; use_compressed_hier : int)
+ return fstContext;
+ pragma Import (C, fstWriterCreate, "fstWriterCreate");
+
+ function fstWriterCreateVar
+ (ctx : fstContext;
+ vt : fstVarType;
+ vd : fstVarDir;
+ len : unsigned;
+ nam : Ghdl_C_String;
+ aliasHandle : fstHandle) return fstHandle;
+ pragma Import (C, fstWriterCreateVar, "fstWriterCreateVar");
+
+ function fstWriterCreateVar2
+ (ctx : fstContext;
+ vt : fstVarType;
+ vd : fstVarDir;
+ len : unsigned;
+ nam : Ghdl_C_String;
+ aliasHandle : fstHandle;
+ c_type : Ghdl_C_String;
+ svt : fstSupplementalVarType;
+ sdt : fstSupplementalDataType) return fstHandle;
+ pragma Import (C, fstWriterCreateVar2, "fstWriterCreateVar2");
+
+ procedure fstWriterEmitValueChange
+ (ctx : fstContext;
+ handle : fstHandle;
+ val : System.Address);
+ pragma Import (C, fstWriterEmitValueChange, "fstWriterEmitValueChange");
+
+ procedure fstWriterEmitVariableLengthValueChange
+ (ctx : fstContext;
+ handle : fstHandle;
+ val : System.Address;
+ len : unsigned);
+ pragma Import (C, fstWriterEmitVariableLengthValueChange,
+ "fstWriterEmitVariableLengthValueChange");
+
+ procedure fstWriterEmitDumpActive (ctx : fstContext; enable : int);
+ pragma Import (C, fstWriterEmitDumpActive, "fstWriterEmitDumpActive");
+
+ procedure fstWriterEmitTimeChange
+ (ctx : fstContext; tim : Unsigned_64);
+ pragma Import (C, fstWriterEmitTimeChange, "fstWriterEmitTimeChange");
+
+ procedure fstWriterFlushContext (ctx : fstContext);
+ pragma Import (C, fstWriterFlushContext, "fstWriterFlushContext");
+
+ function fstWriterGetDumpSizeLimitReached (ctx : fstContext) return int;
+ pragma Import (C, fstWriterGetDumpSizeLimitReached,
+ "fstWriterGetDumpSizeLimitReached");
+
+ function fstWriterGetFseekFailed (ctx : fstContext) return int;
+ pragma Import (C, fstWriterGetFseekFailed, "fstWriterGetFseekFailed");
+
+ procedure fstWriterSetAttrBegin
+ (ctx : fstContext;
+ attrtype : fstAttrType;
+ c_subtype : int;
+ attrname : Ghdl_C_String;
+ arg : Unsigned_64);
+ pragma Import (C, fstWriterSetAttrBegin, "fstWriterSetAttrBegin");
+
+ procedure fstWriterSetAttrEnd (ctx : fstContext);
+ pragma Import (C, fstWriterSetAttrEnd, "fstWriterSetAttrEnd");
+
+ procedure fstWriterSetComment (ctx : fstContext; comm : Ghdl_C_String);
+ pragma Import (C, fstWriterSetComment, "fstWriterSetComment");
+
+ procedure fstWriterSetDate (ctx : fstContext; dat : Ghdl_C_String);
+ pragma Import (C, fstWriterSetDate, "fstWriterSetDate");
+
+ procedure fstWriterSetDumpSizeLimit
+ (ctx : Ghdl_C_String; numbytes : Unsigned_64);
+ pragma Import (C, fstWriterSetDumpSizeLimit, "fstWriterSetDumpSizeLimit");
+
+ procedure fstWriterSetEnvVar (ctx : fstContext; envvar : Ghdl_C_String);
+ pragma Import (C, fstWriterSetEnvVar, "fstWriterSetEnvVar");
+
+ procedure fstWriterSetFileType (ctx : fstContext; filetype : fstFileType);
+ pragma Import (C, fstWriterSetFileType, "fstWriterSetFileType");
+
+ procedure fstWriterSetPackType (ctx : fstContext; typ : fstWriterPackType);
+ pragma Import (C, fstWriterSetPackType, "fstWriterSetPackType");
+
+ procedure fstWriterSetParallelMode (ctx : fstContext; enable : int);
+ pragma Import (C, fstWriterSetParallelMode, "fstWriterSetParallelMode");
+
+ procedure fstWriterSetRepackOnClose (ctx : fstContext; enable : int);
+ pragma Import (C, fstWriterSetRepackOnClose, "fstWriterSetRepackOnClose");
+
+ procedure fstWriterSetScope
+ (ctx : fstContext;
+ scopetype : fstScopeType;
+ scopename : Ghdl_C_String;
+ scopecomp : Ghdl_C_String);
+ pragma Import (C, fstWriterSetScope, "fstWriterSetScope");
+
+ procedure fstWriterSetSourceInstantiationStem
+ (ctx : fstContext;
+ path : Ghdl_C_String;
+ line : unsigned;
+ use_realpath : unsigned);
+ pragma Import (C, fstWriterSetSourceInstantiationStem,
+ "fstWriterSetSourceInstantiationStem");
+
+ procedure fstWriterSetSourceStem
+ (ctx : fstContext;
+ path : Ghdl_C_String;
+ line : unsigned;
+ use_realpath : unsigned);
+ pragma Import (C, fstWriterSetSourceStem, "fstWriterSetSourceStem");
+
+ procedure fstWriterSetTimescale (ctx : fstContext; ts : Integer);
+ pragma Import (C, fstWriterSetTimescale, "fstWriterSetTimescale");
+
+ procedure fstWriterSetTimescaleFromString
+ (ctx : fstContext; s : Ghdl_C_String);
+ pragma Import (C, fstWriterSetTimescaleFromString,
+ "fstWriterSetTimescaleFromString");
+
+ procedure fstWriterSetTimezero (ctx : fstContext; tim : Unsigned_64);
+ pragma Import (C, fstWriterSetTimezero, "fstWriterSetTimezero");
+
+ procedure fstWriterSetUpscope (ctx : fstContext);
+ pragma Import (C, fstWriterSetUpscope, "fstWriterSetUpscope");
+
+ procedure fstWriterSetVersion (ctx : fstContext; vers : Ghdl_C_String);
+ pragma Import (C, fstWriterSetVersion, "fstWriterSetVersion");
+
+ function fstUtilityBinToEsc
+ (d : access unsigned_char;
+ s : access unsigned_char;
+ len : int) return int;
+ pragma Import (C, fstUtilityBinToEsc, "fstUtilityBinToEsc");
+
+ function fstUtilityEscToBin
+ (d : access unsigned_char;
+ s : access unsigned_char;
+ len : int) return int;
+ pragma Import (C, fstUtilityEscToBin, "fstUtilityEscToBin");
+
+end Grt.Fst_Api;
diff --git a/src/grt/grt-modules.adb b/src/grt/grt-modules.adb
index e5304f04d..3fc6c4ec2 100644
--- a/src/grt/grt-modules.adb
+++ b/src/grt/grt-modules.adb
@@ -27,6 +27,7 @@ pragma Unreferenced (System.Storage_Elements);
with Grt.Vcd;
with Grt.Vcdz;
with Grt.Vpi;
+with Grt.Fst;
with Grt.Waves;
with Grt.Vital_Annotate;
with Grt.Disp_Tree;
@@ -40,6 +41,7 @@ package body Grt.Modules is
Grt.Vcd.Register;
Grt.Vcdz.Register;
Grt.Waves.Register;
+ Grt.Fst.Register;
Grt.Vpi.Register;
Grt.Vital_Annotate.Register;
Grt.Disp_Rti.Register;
diff --git a/src/grt/grt-vcd.adb b/src/grt/grt-vcd.adb
index d4a9ea066..13c1f20d5 100644
--- a/src/grt/grt-vcd.adb
+++ b/src/grt/grt-vcd.adb
@@ -714,8 +714,7 @@ package body Grt.Vcd is
Vcd_Newline;
end Vcd_Put_Var;
- function Verilog_Wire_Changed (Info : Verilog_Wire_Info;
- Last : Std_Time)
+ function Verilog_Wire_Changed (Info : Verilog_Wire_Info; Last : Std_Time)
return Boolean
is
Len : Ghdl_Index_Type;
diff --git a/src/grt/grt-vcd.ads b/src/grt/grt-vcd.ads
index ed015af80..73096c5dd 100644
--- a/src/grt/grt-vcd.ads
+++ b/src/grt/grt-vcd.ads
@@ -47,7 +47,9 @@ package Grt.Vcd is
type Vcd_Value_Kind is (Vcd_Effective, Vcd_Driving);
type Verilog_Wire_Info is record
+ -- Signal address
Addr : Address;
+
Irange : Ghdl_Range_Ptr;
Kind : Vcd_Var_Kind;
Val : Vcd_Value_Kind;
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 05:08:27 +0000