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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file src/gfile/gfile.c
* @brief GFILE code.
*
*/
#define GFILE_IMPLEMENTATION
#include "gfx.h"
#if GFX_USE_GFILE
// The chain of FileSystems
#define GFILE_CHAINHEAD 0
// The table of GFILE's
static GFILE gfileArr[GFILE_MAX_GFILES];
GFILE *gfileStdIn;
GFILE *gfileStdOut;
GFILE *gfileStdErr;
/**
* The order of the file-systems below determines the order
* that they are searched to find a file.
* The last defined is the first searched.
*/
/********************************************************
* The RAM file-system VMT
********************************************************/
#if GFILE_NEED_RAMFS
#include "../src/gfile/inc_ramfs.c"
#endif
/********************************************************
* The FAT file-system VMT
********************************************************/
#ifndef GFILE_NEED_FATFS
#include "../src/gfile/inc_fatfs.c"
#endif
/********************************************************
* The native file-system
********************************************************/
#if GFILE_NEED_NATIVEFS
#include "../src/gfile/inc_nativefs.c"
#endif
/********************************************************
* The ROM file-system VMT
********************************************************/
#if GFILE_NEED_ROMFS
#include "../src/gfile/inc_romfs.c"
#endif
/********************************************************
* IO routines
********************************************************/
/**
* The chain of file systems.
*/
static const GFILEVMT const * FsChain = GFILE_CHAINHEAD;
/**
* The init routine
*/
void _gfileInit(void) {
#if GFILE_NEED_NATIVEFS
NativeStdIn.flags = GFILEFLG_OPEN|GFILEFLG_READ;
NativeStdIn.vmt = &FsNativeVMT;
NativeStdIn.obj = (void *)stdin;
NativeStdIn.pos = 0;
gfileStdIn = &NativeStdIn;
NativeStdOut.flags = GFILEFLG_OPEN|GFILEFLG_WRITE|GFILEFLG_APPEND;
NativeStdOut.vmt = &FsNativeVMT;
NativeStdOut.obj = (void *)stdout;
NativeStdOut.pos = 0;
gfileStdOut = &NativeStdOut;
NativeStdErr.flags = GFILEFLG_OPEN|GFILEFLG_WRITE|GFILEFLG_APPEND;
NativeStdErr.vmt = &FsNativeVMT;
NativeStdErr.obj = (void *)stderr;
NativeStdErr.pos = 0;
gfileStdErr = &NativeStdErr;
#endif
}
bool_t gfileExists(const char *fname) {
const GFILEVMT *p;
if (fname[0] && fname[1] == '|') {
for(p = FsChain; p; p = p->next) {
if (p->prefix == fname[0])
return p->exists && p->exists(fname+2);
}
} else {
for(p = FsChain; p; p = p->next) {
if (p->exists && p->exists(fname))
return TRUE;
}
}
return FALSE;
}
bool_t gfileDelete(const char *fname) {
const GFILEVMT *p;
if (fname[0] && fname[1] == '|') {
for(p = FsChain; p; p = p->next) {
if (p->prefix == fname[0])
return p->del && p->del(fname+2);
}
} else {
for(p = FsChain; p; p = p->next) {
if (p->del && p->del(fname))
return TRUE;
}
}
return FALSE;
}
long int gfileGetFilesize(const char *fname) {
const GFILEVMT *p;
if (fname[0] && fname[1] == '|') {
for(p = FsChain; p; p = p->next) {
if (p->prefix == fname[0])
return p->filesize ? p->filesize(fname+2) : -1;
}
} else {
long int res;
for(p = FsChain; p; p = p->next) {
if (p->filesize && (res = p->filesize(fname)) != -1)
return res;
}
}
return -1;
}
bool_t gfileRename(const char *oldname, const char *newname) {
const GFILEVMT *p;
if ((oldname[0] && oldname[1] == '|') || (newname[0] && newname[1])) {
char ch;
if (oldname[0] && oldname[1] == '|') {
ch = oldname[0];
oldname += 2;
if (newname[0] && newname[1] == '|') {
if (newname[0] != ch)
return FALSE;
newname += 2;
}
} else {
ch = newname[0];
newname += 2;
}
for(p = FsChain; p; p = p->next) {
if (p->prefix == ch)
return p->ren && p->ren(oldname, newname);
}
} else {
for(p = FsChain; p; p = p->next) {
if (p->ren && p->ren(oldname,newname))
return TRUE;
}
}
return FALSE;
}
GFILE *gfileOpen(const char *fname, const char *mode) {
}
void gfileClose(GFILE *f) {
}
size_t gfileRead(GFILE *f, char *buf, size_t len) {
}
size_t gfileWrite(GFILE *f, const char *buf, size_t len) {
}
long int gfileGetPos(GFILE *f) {
}
bool_t gfileSetPos(GFILE *f, long int pos) {
}
long int gfileGetSize(GFILE *f) {
}
/********************************************************
* printg routines
********************************************************/
#if GFILE_NEED_PRINTG
#endif
/********************************************************
* scang routines
********************************************************/
#if GFILE_NEED_SCANG
#endif
/********************************************************
* stdio emulation routines
********************************************************/
#ifndef GFILE_NEED_STDIO
#define GFILE_NEED_STDIO FALSE
#endif
#endif /* GFX_USE_GFILE */
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