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/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkOSFile.h"
#include <errno.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#ifdef _WIN32
#include <direct.h>
#include <io.h>
#else
#include <unistd.h>
#endif
SkFILE* sk_fopen(const char path[], SkFILE_Flags flags) {
char perm[4];
char* p = perm;
if (flags & kRead_SkFILE_Flag) {
*p++ = 'r';
}
if (flags & kWrite_SkFILE_Flag) {
*p++ = 'w';
}
*p++ = 'b';
*p = 0;
//TODO: on Windows fopen is just ASCII or the current code page,
//convert to utf16 and use _wfopen
return (SkFILE*)::fopen(path, perm);
}
char* sk_fgets(char* str, int size, SkFILE* f) {
return ::fgets(str, size, (FILE *)f);
}
int sk_feof(SkFILE *f) {
// no :: namespace qualifier because it breaks android
return feof((FILE *)f);
}
size_t sk_fgetsize(SkFILE* f) {
SkASSERT(f);
long curr = ::ftell((FILE*)f); // remember where we are
if (curr < 0) {
return 0;
}
::fseek((FILE*)f, 0, SEEK_END); // go to the end
long size = ::ftell((FILE*)f); // record the size
if (size < 0) {
size = 0;
}
::fseek((FILE*)f, curr, SEEK_SET); // go back to our prev location
return size;
}
bool sk_frewind(SkFILE* f) {
SkASSERT(f);
::rewind((FILE*)f);
return true;
}
size_t sk_fread(void* buffer, size_t byteCount, SkFILE* f) {
SkASSERT(f);
if (buffer == NULL) {
size_t curr = ::ftell((FILE*)f);
if ((long)curr == -1) {
SkDEBUGF(("sk_fread: ftell(%p) returned -1 feof:%d ferror:%d\n", f, feof((FILE*)f), ferror((FILE*)f)));
return 0;
}
int err = ::fseek((FILE*)f, (long)byteCount, SEEK_CUR);
if (err != 0) {
SkDEBUGF(("sk_fread: fseek(%d) tell:%d failed with feof:%d ferror:%d returned:%d\n",
byteCount, curr, feof((FILE*)f), ferror((FILE*)f), err));
return 0;
}
return byteCount;
}
else
return ::fread(buffer, 1, byteCount, (FILE*)f);
}
size_t sk_fwrite(const void* buffer, size_t byteCount, SkFILE* f) {
SkASSERT(f);
return ::fwrite(buffer, 1, byteCount, (FILE*)f);
}
void sk_fflush(SkFILE* f) {
SkASSERT(f);
::fflush((FILE*)f);
}
bool sk_fseek(SkFILE* f, size_t byteCount) {
int err = ::fseek((FILE*)f, (long)byteCount, SEEK_SET);
return err == 0;
}
bool sk_fmove(SkFILE* f, long byteCount) {
int err = ::fseek((FILE*)f, byteCount, SEEK_CUR);
return err == 0;
}
size_t sk_ftell(SkFILE* f) {
long curr = ::ftell((FILE*)f);
if (curr < 0) {
return 0;
}
return curr;
}
void sk_fclose(SkFILE* f) {
SkASSERT(f);
::fclose((FILE*)f);
}
bool sk_exists(const char *path) {
#ifdef _WIN32
return (0 == _access(path, 0));
#else
return (0 == access(path, 0));
#endif
}
bool sk_isdir(const char *path) {
struct stat status;
if (0 != stat(path, &status)) {
return false;
}
return SkToBool(status.st_mode & S_IFDIR);
}
bool sk_mkdir(const char* path) {
if (sk_isdir(path)) {
return true;
}
if (sk_exists(path)) {
fprintf(stderr,
"sk_mkdir: path '%s' already exists but is not a directory\n",
path);
return false;
}
int retval;
#ifdef _WIN32
retval = _mkdir(path);
#else
retval = mkdir(path, 0777);
#endif
if (0 == retval) {
return true;
} else {
fprintf(stderr, "sk_mkdir: error %d creating dir '%s'\n", errno, path);
return false;
}
}
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