# # Copyright (C) 2006-2007 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # ifneq ($(__rules_inc),1) __rules_inc=1 ifeq ($(DUMP),) -include $(TOPDIR)/.config endif include $(TOPDIR)/include/debug.mk include $(TOPDIR)/include/verbose.mk TMP_DIR:=$(TOPDIR)/tmp export SHELL=/usr/bin/env bash -c '. $(TOPDIR)/include/shell.sh; eval "$$2"' -- define qstrip $(strip $(subst ",,$(1))) endef #")) ARCH:=$(call qstrip,$(shell echo $(CONFIG_ARCH) | sed -e 's/i[3-9]86/i386/')) BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD)) TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION)) BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX)) GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION)) SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR}) OPTIMIZE_FOR_CPU=$(ARCH) DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl) BIN_DIR:=$(TOPDIR)/bin INCLUDE_DIR:=$(TOPDIR)/include SCRIPT_DIR:=$(TOPDIR)/scripts BUILD_DIR_BASE:=$(TOPDIR)/build_dir BUILD_DIR:=$(BUILD_DIR_BASE)/$(ARCH)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX)) BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)_gcc$(GCCV) STAGING_DIR:=$(TOPDIR)/staging_dir/$(ARCH) STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)_gcc$(GCCV) PACKAGE_DIR:=$(BIN_DIR)/packages/$(TARGET) STAMP_DIR:=$(BUILD_DIR)/stamp STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp TARGET_DIR:=$(BUILD_DIR)/root-$(BOARD) IPKG_STATE_DIR:=$(TARGET_DIR)/usr/lib/ipkg ifeq ($(CONFIG_NATIVE_TOOLCHAIN),) -include $(TOOLCHAIN_DIR)/info.mk REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-linux-uclibc-) endif TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(STAGING_DIR_HOST)/bin:$(STAGING_DIR)/host/bin:$(PATH) TARGET_CFLAGS:=$(TARGET_OPTIMIZATION) -fhonour-copts TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include TARGET_LDFLAGS:=-L$(TOOLCHAIN_DIR)/lib -L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib ifeq ($(CONFIG_SOFT_FLOAT),y) SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft TARGET_CFLAGS+=-msoft-float else SOFT_FLOAT_CONFIG_OPTION:= endif export PATH:=$(TARGET_PATH) export STAGING_DIR export GCC_HONOUR_COPTS:=0 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config export PKG_CONFIG LINUX_HEADERS_DIR:=$(BUILD_DIR_TOOLCHAIN)/linux HOSTCC:=gcc HOST_CFLAGS:=-O2 -I$(STAGING_DIR_HOST)/include HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib TARGET_CC:=$(TARGET_CROSS)gcc STRIP:=$(STAGING_DIR_HOST)/bin/sstrip PATCH:=$(SCRIPT_DIR)/patch-kernel.sh SED:=$(STAGING_DIR_HOST)/bin/sed -i -e CP:=cp -fpR INSTALL_BIN:=install -m0755 INSTALL_DIR:=install -d -m0755 INSTALL_DATA:=install -m0644 INSTALL_CONF:=install -m0600 ifneq ($(CONFIG_CCACHE),) # FIXME: move this variable to a better location export CCACHE_DIR=$(STAGING_DIR)/ccache TARGET_CC:= ccache $(TARGET_CC) endif TARGET_CONFIGURE_OPTS:= \ AR=$(TARGET_CROSS)ar \ AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \ LD=$(TARGET_CROSS)ld \ NM=$(TARGET_CROSS)nm \ CC="$(TARGET_CC)" \ GCC="$(TARGET_CC)" \ CXX=$(TARGET_CROSS)g++ \ RANLIB=$(TARGET_CROSS)ranlib \ STRIP=$(TARGET_CROSS)strip \ OBJCOPY=$(TARGET_CROSS)objcopy \ OBJDUMP=$(TARGET_CROSS)objdump \ SIZE=$(TARGET_CROSS)size # strip an entire directory RSTRIP:= \ NM="$(TARGET_CROSS)nm" \ STRIP="$(STRIP)" \ STRIP_KMOD="$(TARGET_CROSS)strip --strip-unneeded --remove-section=.comment" \ $(SCRIPT_DIR)/rstrip.sh ifeq ($(CONFIG_ENABLE_LOCALE),true) DISABLE_NLS:= else DISABLE_NLS:=--disable-nls endif ifneq ($(CONFIG_LARGEFILE),y) DISABLE_LARGEFILE= --disable-largefile endif ifeq ($(CONFIG_TAR_VERBOSITY),y) TAR_OPTIONS:=-xvf - else TAR_OPTIONS:=-xf - endif define shvar V_$(subst .,_,$(subst -,_,$(subst /,_,$(1)))) endef define shexport $(call shvar,$(1))=$$(call $(1)) export $(call shvar,$(1)) endef empty:= space:= $(empty) $(empty) merge=$(subst $(space),,$(1)) confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n))) # file extension ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1))) all: FORCE: ; .PHONY: FORCE endif #__rules_inc n34'>34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 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%module pyabc

// -------------------------------------------------------------------
// SWIG typemap allowing us to grab a Python callable object
// -------------------------------------------------------------------

#ifdef SWIG<Python>

%typemap(in) PyObject *PyFunc 
{
  
  if ( !PyCallable_Check($source) ) 
  {
      PyErr_SetString(PyExc_TypeError, "Need a callable object!");
      return NULL;
  }
  
  $target = $source;
}

#endif /* #ifdef SWIG<Python> */

%{
    
#include <base/main/main.h>
#include <misc/util/utilCex.h>

#include <stdlib.h>
#include <signal.h>

#include <sys/prctl.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <fcntl.h>
    
int n_ands()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    if ( pNtk && Abc_NtkIsStrash(pNtk) )
    {        
        return Abc_NtkNodeNum(pNtk);
    }

    return -1;
}
    
int n_nodes()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    if ( pNtk )
    {        
        return Abc_NtkNodeNum(pNtk);
    }

    return -1;
}

int n_pis()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    if ( pNtk )
    {        
        return Abc_NtkPiNum(pNtk);
    }

    return -1;
}


int n_pos()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    if ( pNtk )
    {        
        return Abc_NtkPoNum(pNtk);
    }

    return -1;
}

int n_latches()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    if ( pNtk )
    {        
        return Abc_NtkLatchNum(pNtk);
    }

    return -1;
}

int n_levels()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    if ( pNtk )
    {        
        return Abc_NtkLevel(pNtk);
    }

    return -1;
}

double n_area()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    if ( pNtk && Abc_NtkHasMapping(pNtk) )
    {        
        return Abc_NtkGetMappedArea(pNtk);
    }

    return -1;
}

int has_comb_model()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    return pNtk && pNtk->pModel;
}

int has_seq_model()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    return pNtk && pNtk->pSeqModel;
}

int n_bmc_frames()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    return Abc_FrameReadBmcFrames(pAbc);
}

int prob_status()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    return Abc_FrameReadProbStatus(pAbc);
}

int is_valid_cex()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    return pNtk && Abc_FrameReadCex(pAbc) && Abc_NtkIsValidCex( pNtk, Abc_FrameReadCex(pAbc) );
}

int is_true_cex()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    return pNtk && Abc_FrameReadCex(pAbc) && Abc_NtkIsTrueCex( pNtk, Abc_FrameReadCex(pAbc) );
}

int n_cex_pis()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();

    return Abc_FrameReadCex(pAbc) ? Abc_FrameReadCexPiNum( pAbc ) : -1;
}

int n_cex_regs()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();

    return Abc_FrameReadCex(pAbc) ? Abc_FrameReadCexRegNum( pAbc ) : -1;
}

int cex_po()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();

    return Abc_FrameReadCex(pAbc) ? Abc_FrameReadCexPo( pAbc ) : -1;
}

int cex_frame()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();

    return Abc_FrameReadCex(pAbc) ? Abc_FrameReadCexFrame( pAbc ) : -1;
}

int n_phases()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);

    return pNtk ? Abc_NtkPhaseFrameNum(pNtk) : 1;
}

int is_const_po( int iPoNum )
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    return Abc_FrameCheckPoConst( pAbc, iPoNum );
}

Abc_Cex_t* _cex_get()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Abc_Cex_t* pCex = Abc_FrameReadCex(pAbc);
    
    if ( ! pCex )
    {
        return NULL;
    }

    return Abc_CexDup( pCex, -1 ); 
}

int _cex_get_vec_len()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Vec_Ptr_t* vCexVec = Abc_FrameReadCexVec(pAbc);
    
    if( ! vCexVec )
    {
        return 0;
    }
    
    return Vec_PtrSize(vCexVec);
}

Abc_Cex_t* _cex_get_vec(int i)
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Vec_Ptr_t* vCexVec = Abc_FrameReadCexVec(pAbc);

    if( ! vCexVec )
    {
        return NULL;
    }

    Abc_Cex_t* pCex = (Abc_Cex_t*)Vec_PtrEntry( vCexVec, i );

    if ( ! pCex )
    {
        return NULL;
    }

    return Abc_CexDup( pCex, -1 ); 
}

int _status_get_vec_len()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Vec_Int_t* vStatusVec = Abc_FrameReadStatusVec(pAbc);
    
    if( ! vStatusVec )
    {
        return 0;
    }
    
    return Vec_IntSize(vStatusVec);
}

int _status_get_vec(int i)
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Vec_Int_t* vStatusVec = Abc_FrameReadStatusVec(pAbc);

    if( ! vStatusVec )
    {
        return -1;
    }

    return Vec_IntEntry( vStatusVec, i );
}

void _cex_put(Abc_Cex_t* pCex)
{
    if ( pCex )
    {
        pCex = Abc_CexDup(pCex, -1);
    }
    
    Abc_FrameSetCex( pCex );
}

void _cex_free(Abc_Cex_t* pCex)
{
    Abc_CexFree(pCex);
}

int _cex_n_regs(Abc_Cex_t* pCex)
{
    return pCex->nRegs;
}

int _cex_n_pis(Abc_Cex_t* pCex)
{
    return pCex->nPis;
}

int _cex_get_po(Abc_Cex_t* pCex)
{
    return pCex->iPo;
}

int _cex_get_frame(Abc_Cex_t* pCex)
{
    return pCex->iFrame;
}

static PyObject* VecInt_To_PyList(Vec_Int_t* v)
{
    PyObject* pylist = PyList_New( Vec_IntSize(v) );
    
    int elem, i;
    
    Vec_IntForEachEntry( v, elem, i)
    {
        PyList_SetItem( pylist, i, PyInt_FromLong(elem) );
    }
    
    return pylist;
}

PyObject* eq_classes()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Vec_Ptr_t *vPoEquivs = Abc_FrameReadPoEquivs(pAbc);
    
    PyObject* eq_classes;
    Vec_Int_t* pEntry;
    int i;
    
    if( ! vPoEquivs )
    {
        Py_RETURN_NONE;
    }
    
    eq_classes = PyList_New( Vec_PtrSize(vPoEquivs) );
    
    Vec_PtrForEachEntry( Vec_Int_t*, vPoEquivs, pEntry, i )
    {
        PyList_SetItem( eq_classes, i, VecInt_To_PyList(pEntry) );
    }

    return eq_classes;    
}

void _pyabc_array_clear()
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Vec_Int_t *vObjIds = Abc_FrameReadObjIds(pAbc);
    Vec_IntClear( vObjIds );
}

void _pyabc_array_push(int i)
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Vec_Int_t *vObjIds = Abc_FrameReadObjIds(pAbc);
    Vec_IntPush( vObjIds, i );
}

int pyabc_array_read_entry(int i)
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    Vec_Int_t *vObjIds = Abc_FrameReadObjIds(pAbc);
    if( !vObjIds )
        return -1;
    return Vec_IntEntry( vObjIds, i );
}

static PyObject* pyabc_internal_python_command_callback = 0;

void pyabc_internal_set_command_callback( PyObject* callback )
{
    Py_XINCREF(callback);
    Py_XDECREF(pyabc_internal_python_command_callback);

    pyabc_internal_python_command_callback = callback;
}

static int pyabc_internal_abc_command_callback(Abc_Frame_t * pAbc, int argc, char ** argv)
{
    int i;
    
    PyObject* args;
    PyObject* arglist;
    PyObject* res;
    
    PyGILState_STATE gstate;
    
    long lres;
    
    if ( !pyabc_internal_python_command_callback )
            return 0;
            
    gstate = PyGILState_Ensure();
            
    args = PyList_New(argc);
    
    for( i=0 ; i<argc ; i++ )
            PyList_SetItem(args, i, PyString_FromString(argv[i]) );

    arglist = Py_BuildValue("(O)", args);
    Py_INCREF(arglist);

    res = PyEval_CallObject( pyabc_internal_python_command_callback, arglist );
    Py_DECREF(arglist);

    if ( !res )
    {
        PyGILState_Release(gstate);
        return -1;
    }
    
    lres = PyInt_AsLong(res);
    Py_DECREF(res);

    PyGILState_Release(gstate);
    
    return lres;
}

int run_command(char* cmd)
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();
    int rc;
    
    Py_BEGIN_ALLOW_THREADS
    
    rc = Cmd_CommandExecute(pAbc, cmd);
    
    Py_END_ALLOW_THREADS
    
    return rc;
}

void pyabc_internal_register_command( char * sGroup, char * sName, int fChanges )
{
    Abc_Frame_t* pAbc = Abc_FrameGetGlobalFrame();

    Cmd_CommandAdd( pAbc, sGroup, sName, (Cmd_CommandFuncType)pyabc_internal_abc_command_callback, fChanges);
}

static int sigchld_pipe_fd = -1;
    
static void sigchld_handler(int signum)
{
    while( write(sigchld_pipe_fd, "", 1) == -1 && errno==EINTR )
        ;
}

static void install_sigchld_handler(int sigchld_fd)
{
    sigchld_pipe_fd = sigchld_fd;
    signal(SIGCHLD, sigchld_handler);
}

static int sigint_pipe_fd = -1;

static void sigint_handler(int signum)
{
    unsigned char tmp = (unsigned char)signum;
    while( write(sigint_pipe_fd, &tmp, 1) == -1 && errno==EINTR )
        ;
}

static void install_sigint_handler(int sigint_fd)
{
    sigint_pipe_fd = sigint_fd;
    
    signal(SIGINT, sigint_handler);

    // try to catch other signals that ask the process to terminate    
    signal(SIGABRT, sigint_handler);
    signal(SIGQUIT, sigint_handler);
    signal(SIGTERM, sigint_handler);

    // try to ensure cleanup on exceptional conditions
    signal(SIGBUS, sigint_handler);
    signal(SIGILL, sigint_handler);
    signal(SIGSEGV, sigint_handler);
    
    // try to ensure cleanup before being killed due to resource limit
    signal(SIGXCPU, sigint_handler);
    signal(SIGXFSZ, sigint_handler);
}

sigset_t old_procmask;
static int nblocks = 0;

void block_sigint()
{
    sigset_t procmask;

    assert(nblocks==0);
    nblocks ++ ;
    
    sigemptyset(&procmask);
    sigaddset(&procmask, SIGINT);
    
    sigprocmask(SIG_BLOCK, &procmask, &old_procmask);
}

void unblock_sigint()
{
    assert( nblocks==1);
    nblocks--;
    
    sigprocmask(SIG_SETMASK, &old_procmask, NULL);
}

static PyObject* pyabc_internal_system_callback = 0;
static PyObject* pyabc_internal_tmpfile_callback = 0;
static PyObject* pyabc_internal_tmpfile_remove_callback = 0;

int Util_SignalSystem(const char* cmd)
{
    PyObject* arglist;
    PyObject* res;
    
    PyGILState_STATE gstate;

    long lres;
    
    if ( !pyabc_internal_system_callback )
            return -1;
            
    gstate = PyGILState_Ensure();
            
    arglist = Py_BuildValue("(O)", PyString_FromString(cmd));
    Py_INCREF(arglist);

    res = PyEval_CallObject( pyabc_internal_system_callback, arglist );
    Py_DECREF(arglist);

    if ( !res )
    {
        PyGILState_Release(gstate);
        return -1;
    }
    
    lres = PyInt_AsLong(res);
    Py_DECREF(res);

    PyGILState_Release(gstate);
    
    return lres;
}

int Util_SignalTmpFile(const char* prefix, const char* suffix, char** out_name)
{
    char* str;
    Py_ssize_t size;
    
    PyObject* arglist;
    PyObject* res;
    
    PyGILState_STATE gstate;
    
    *out_name = NULL;

    if ( !pyabc_internal_tmpfile_callback )
            return 0;
            
    gstate = PyGILState_Ensure();
            
    arglist = Py_BuildValue("(ss)", prefix, suffix);
    Py_INCREF(arglist);

    res = PyEval_CallObject( pyabc_internal_tmpfile_callback, arglist );
    Py_DECREF(arglist);

    if ( !res )
    {
        PyGILState_Release(gstate);
        return -1;
    }
    
    PyString_AsStringAndSize(res, &str, &size);
    
    *out_name = ABC_ALLOC(char, size+1);
    strcpy(*out_name, str);
    
    Py_DECREF(res);

    PyGILState_Release(gstate);
    
    return open(*out_name, O_WRONLY);
}

void Util_SignalTmpFileRemove(const char* fname, int fLeave)
{
    PyObject* arglist;
    PyObject* res;
    
    PyGILState_STATE gstate;

    if ( !pyabc_internal_tmpfile_remove_callback )
            return;
            
    gstate = PyGILState_Ensure();
            
    arglist = Py_BuildValue("(si)", fname, fLeave);
    Py_INCREF(arglist);

    res = PyEval_CallObject( pyabc_internal_tmpfile_remove_callback, arglist );
    Py_DECREF(arglist);
    Py_XDECREF(res);

    PyGILState_Release(gstate);
}

void pyabc_internal_set_util_callbacks( PyObject* system_callback, PyObject* tmpfile_callback, PyObject* tmpfile_remove_callback )
{
    Py_XINCREF(system_callback);
    Py_XDECREF(pyabc_internal_system_callback);

    pyabc_internal_system_callback = system_callback;

    Py_XINCREF(tmpfile_callback);
    Py_XDECREF(pyabc_internal_tmpfile_callback);

    pyabc_internal_tmpfile_callback = tmpfile_callback;

    Py_XINCREF(tmpfile_remove_callback);
    Py_XDECREF(pyabc_internal_tmpfile_remove_callback);

    pyabc_internal_tmpfile_remove_callback = tmpfile_remove_callback;
}

PyObject* _wait_no_hang()
{
    int status;
    int pid;
    
    pid = wait3(&status, WNOHANG, NULL);
    
    return Py_BuildValue("(iii)", pid, status, errno);
}

int _posix_kill(int pid, int signum)
{
    return kill(pid, signum);
}

void _set_death_signal()
{
    // send SIGINT if parent process is dead
    prctl(PR_SET_PDEATHSIG, SIGINT);
    
    // if parent process is already dead (and adopted by init)
    if ( getppid() == 1)
    {
        raise(SIGINT);
    }
}

%}

%init 
%{
    Abc_Start();
%}

int n_ands();
int n_nodes();
int n_pis();
int n_pos();
int n_latches();
int n_levels();
double n_area();

int run_command(char* cmd);

int has_comb_model();
int has_seq_model();

int  n_bmc_frames();
int  prob_status();

int is_valid_cex();
int is_true_cex();
int  n_cex_pis();
int  n_cex_regs();
int  cex_po();
int  cex_frame();

int  n_phases();
int  is_const_po( int iPoNum );

Abc_Cex_t* _cex_get();
int _cex_get_vec_len();
Abc_Cex_t* _cex_get_vec(int i);
int _status_get_vec_len();
int _status_get_vec(int i);
void _cex_put(Abc_Cex_t* pCex);
void _cex_free(Abc_Cex_t* pCex);
int _cex_n_regs(Abc_Cex_t* pCex);
int _cex_n_pis(Abc_Cex_t* pCex);
int _cex_get_po(Abc_Cex_t* pCex);
int _cex_get_frame(Abc_Cex_t* pCex);

PyObject* eq_classes();

void _pyabc_array_clear();
void _pyabc_array_push(int i);
int pyabc_array_read_entry(int i);

void pyabc_internal_set_command_callback( PyObject* callback );
void pyabc_internal_register_command( char * sGroup, char * sName, int fChanges );

void install_sigchld_handler(int sigint_fd);
void install_sigint_handler(int sigint_fd);

void block_sigint();
void unblock_sigint();

void pyabc_internal_set_util_callbacks( PyObject* system_callback, PyObject* tmpfile_callback, PyObject* tmpfile_remove_callback );

PyObject* _wait_no_hang();

void _set_death_signal();

int _posix_kill(int pid, int signum);
void _set_death_signal();

%pythoncode 
%{

class _Cex(object):

    def __new__(cls, pCex):
        if not pCex:
            return None        
        return object.__new__(cls)

    def __init__(self, pCex):
        self.pCex = pCex
        
    def __del__(self):
        _cex_free(self.pCex)

    def n_regs(self):
        return _cex_n_regs(self.pCex)
        
    def n_pis(self):
        return _cex_n_pis(self.pCex)
    
    def get_po(self):
        return _cex_get_po(self.pCex)

    def get_frame(self):
        return _cex_get_frame(self.pCex)
       
def cex_get_vector():
    
    return [ _Cex(_cex_get_vec(i)) for i in xrange(_cex_get_vec_len()) ]
       
def status_get_vector():
    
    return [ _status_get_vec(i) for i in xrange(_status_get_vec_len()) ]
       
def cex_get():

    return _Cex( _cex_get() )
    
def cex_put(cex):

    assert cex is not None
    assert cex.pCex is not None
    
    return _cex_put(cex.pCex)
    
    
def create_abc_array(List):
    _pyabc_array_clear()
    for ObjId in List:
        _pyabc_array_push(ObjId)       
        
        
import threading
import select
import signal
import tempfile
import os
import errno
import sys, traceback
import subprocess

_active_lock = threading.Lock()
_die_flag = False

_active_pids = set()
_active_temp_files = set()

_terminated_pids_cond = threading.Condition(_active_lock)
_terminated_pids = {}

def add_temp_file(fname):
    with _active_lock:
        _active_temp_files.add(fname)
            
def remove_temp_file(fname):
    with _active_lock:
        _active_temp_files.remove(fname)
            
_old_os_wait3 = os.wait3
_select_select = select.select

def _retry_select(fd):
    while True:
        try:
            rrdy,_,_ = _select_select([fd],[],[])
            if fd in rrdy:
                return
        except select.error as e:
            if e[0] == errno.EINTR:
                continue
            raise

def _retry_read(fd):

    while True:
        try:
            return fd.read(1)
        except OSError as e:
            if e.errno == errno.EINTR:
                continue
            raise

def _retry_os_read(fd):

    while True:
        try:
            return os.read(fd, 1)
        except OSError as e:
            if e.errno == errno.EINTR:
                continue
            raise

def _retry_wait():

    while True:
        
        pid, status, e = _wait_no_hang()
        
        if pid>0:
            return pid, status
            
        elif pid==0:
            return 0,0
            
        elif pid == -1 and e == errno.ECHILD:
            return 0,0
            
        elif pid==-1 and e != errno.EINTR:
            raise OSError(e, 'unknown error in wait3()')

def _sigint_wait_thread_func(fd):

    global _die_flag
    
    while True:
        
        _retry_select(fd)
        _retry_read(fd) 

        with _active_lock:
        
            if _die_flag:
                os._exit(-1)
            
            _die_flag = True
        
            for pid in _active_pids:
                rc = _posix_kill(pid, signal.SIGINT)
    
            for fname in _active_temp_files:
                os.remove(fname)

            os._exit(-1)

def _child_wait_thread_func(fd):

    while True:
    
        _retry_select(fd)
        rc = _retry_read(fd)
                
        with _active_lock:
        
            while True:
            
                pid, status = _retry_wait()

                if pid==0:
                    break
                    
                if pid in _active_pids:
                    _active_pids.remove(pid)
                    
                _terminated_pids[pid] = status
                os.write(_wait_fd_write, "1")
                _terminated_pids_cond.notifyAll()

_sigint_pipe_read_fd = -1
_sigint_pipe_write_fd = -1

_sigchld_pipe_read_fd = -1
_sigchld_pipe_write_fd = -1

wait_fd = -1
_wait_fd_write = -1

def _start_threads():

    global wait_fd, _wait_fd_write
    wait_fd, _wait_fd_write = os.pipe()

    global _sigint_pipe_read_fd, _sigint_pipe_write_fd
    
    _sigint_pipe_read_fd, _sigint_pipe_write_fd = os.pipe()
    sigint_read = os.fdopen(_sigint_pipe_read_fd, "r", 0 )
    
    sigint_wait_thread = threading.Thread(target=_sigint_wait_thread_func, name="SIGINT wait thread", args=(sigint_read,))
    sigint_wait_thread.setDaemon(True)
    sigint_wait_thread.start()
    
    install_sigint_handler(_sigint_pipe_write_fd)
    
    global _sigchld_pipe_read_fd, _sigchld_pipe_write_fd
  
    _sigchld_pipe_read_fd, _sigchld_pipe_write_fd = os.pipe()
    sigchld_read = os.fdopen(_sigchld_pipe_read_fd, "r", 0 )
    
    child_wait_thread = threading.Thread(target=_child_wait_thread_func, name="child process wait thread", args=(sigchld_read,))
    child_wait_thread.setDaemon(True)
    child_wait_thread.start()
    
    install_sigchld_handler(_sigchld_pipe_write_fd)

_close_on_fork = []

def close_on_fork(fd):
    _close_on_fork.append(fd)

def after_fork():

    _set_death_signal()

    global _close_on_fork

    for fd in _close_on_fork:
        os.close(fd)
        
    _close_on_fork = []

    os.close(wait_fd)
    os.close(_wait_fd_write)

    os.close(_sigint_pipe_read_fd)
    os.close(_sigint_pipe_write_fd)
    
    os.close(_sigchld_pipe_read_fd)
    os.close(_sigchld_pipe_write_fd)
   
    global _active_lock
    _active_lock = threading.Lock()

    global _terminated_pids_cond
    _terminated_pids_cond = threading.Condition(_active_lock)
    
    global _terminated_pids
    _terminated_pids = {}
    
    global _active_pids
    _active_pids = set()
    
    global _active_temp_files
    _active_temp_files = set()
    
    _start_threads()

class _sigint_block_section(object):
    def __init__(self):
        self.blocked = False
        
    def __enter__(self):
        block_sigint()
        self.blocked = True
        
    def __exit__(self, type, value, traceback):
        self.release()
        
    def release(self):
        if self.blocked:
            self.blocked = False
            unblock_sigint()

_old_os_fork = os.fork

def _fork():

    ppid = os.getpid()

    with _sigint_block_section() as cs:
    
        with _active_lock:
        
            if _die_flag:
                os._exit(-1)
    
            pid = _old_os_fork()
    
            if pid == 0:
                after_fork()
            
            if pid > 0:
                _active_pids.add(pid)  
    
            return pid
    
def _waitpid(pid, options=0):
    
    while True:
    
        with _active_lock:
        
            if pid in _terminated_pids:
                _retry_os_read(wait_fd)
                status = _terminated_pids[pid]
                del _terminated_pids[pid]
                return pid, status
            
            if options==os.WNOHANG:
                return 0, 0
                
            _terminated_pids_cond.wait()

def _wait(options=0):

    while True:
        
        with _active_lock:
        
            for pid, status in _terminated_pids.iteritems():
                _retry_os_read(wait_fd)
                del _terminated_pids[pid]
                return pid, status
            
            if options==os.WNOHANG:
                return 0, 0
                
            _terminated_pids_cond.wait()

_old_os_kill = os.kill

def _kill(pid, sig):

    with _active_lock:
    
        if pid in _terminated_pids:
            return None
            
        return _old_os_kill(pid,sig)
    
os.kill = _kill
os.fork = _fork
os.wait = _wait
os.waitpid = _waitpid

def _split_command_line(cmd):
    
    args = []
    
    i=0
    
    while i<len(cmd):
        
        while i<len(cmd) and cmd[i] in [' ','\t','\f']:
            i += 1
            
        if i >= len(cmd):
            break
            
        arg = []
        
        in_quotes = None

        while i<len(cmd):
            
            if not in_quotes and cmd[i] in ['\'','\"','\'']:
                in_quotes = cmd[i]
                
            elif in_quotes and cmd[i]==in_quotes:
                in_quotes = None
                
            elif cmd[i] == '\\' and i<(len(cmd)+1):
                
                i += 1
                
                if cmd[i]=='\\':
                    arg.append('\\')
                elif cmd[i]=='\'':
                    arg.append('\'')
                elif cmd[i]=='\"':
                    arg.append('\'')
                elif cmd[i]=='\"':
                    arg.append('\"')
                elif cmd[i]=='a':
                    arg.append('\a')
                elif cmd[i]=='b':
                    arg.append('\b')
                elif cmd[i]=='n':
                    arg.append('\n')
                elif cmd[i]=='f':
                    arg.append('\f')
                elif cmd[i]=='r':
                    arg.append('\r')
                elif cmd[i]=='t':
                    arg.append('\t')
                elif cmd[i]=='v':
                    arg.append('\v')
                else:
                    arg.append(cmd[i])
                    
            elif not in_quotes and cmd[i] in [' ','\t','\f']:
                break
                
            else:
                arg.append(cmd[i])
                
            i += 1
        
        args.append( "".join(arg) )
    
    return args


def system(cmd):

    args = _split_command_line(cmd)
    
    if args[-2] == '>':
    
        with open(args[-1],'w') as fout:
            p = subprocess.Popen(args[:-2], stdout=fout)
            rc = p.wait()
            return rc
         
    else:
        p = subprocess.Popen(args)
        return p.wait()

def tmpfile(prefix, suffix):

    with _active_lock:
        with tempfile.NamedTemporaryFile(delete=False, prefix=prefix, suffix=suffix) as file:
            _active_temp_files.add(file.name)
            return file.name
       
def tmpfile_remove(fname, leave):

    with _active_lock:
        os.remove(fname)
        _active_temp_files.remove(fname) 

pyabc_internal_set_util_callbacks( system, tmpfile,tmpfile_remove )


_start_threads()


_registered_commands = {}

def _cmd_callback(args):
    try:
        assert len(args) > 0
        
        cmd = args[0]
        assert cmd in _registered_commands
    
        res = _registered_commands[cmd](args)
        
        assert type(res) == int, "User-defined Python command must return an integer."
        
        return res
    
    except Exception, e:
        import traceback
        traceback.print_exc()

    except SystemExit, se:
        pass
            
    return 0
    
pyabc_internal_set_command_callback( _cmd_callback )
    
def add_abc_command(fcmd, group, cmd, change):
    _registered_commands[ cmd ] = fcmd
    pyabc_internal_register_command( group, cmd, change)

import optparse

xxx = {} 

def cmd_python(cmd_args):
    
    usage = "usage: %prog [options] <Python files>"
    
    parser = optparse.OptionParser(usage, prog="python")
    
    parser.add_option("-c", "--cmd", dest="cmd", help="Execute Python command directly")
    parser.add_option("-v", "--version", action="store_true", dest="version", help="Display Python Version")

    options, args = parser.parse_args(cmd_args)
    
    if options.version:
        print sys.version
        return 0
    
    if options.cmd:
        exec options.cmd in xxx
        return 0
    
    scripts_dir = os.getenv('ABC_PYTHON_SCRIPTS', ".")
    scripts_dirs = scripts_dir.split(':')
    
    for fname in args[1:]:
        if os.path.isabs(fname):
            execfile(fname, xxx)
        else:
            for d in scripts_dirs:
                fname = os.path.join(scripts_dir, fname)
                if os.path.exists(fname):
                    execfile(fname, xxx)
                    break
    
    return 0
    
add_abc_command(cmd_python, "Python", "python", 0) 


%}
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-07 09:28:12 +0000