//opens/create file
bool __SYSCALL OpenFile(FILE* file, const char* filename, bool bCreate)
{
COMPILE_TIME_CHECK(sizeof(FILE)==sizeof(HANDLE));
HANDLE hFile = CreateFile(filename, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ,
NULL, bCreate ? OPEN_ALWAYS : OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
return false;
memcpy(file, &hFile, 4);
return true;
}
//__SYSCALL return length written
int __SYSCALL AppendFile(FILE* file, char* buf, int len)
{
COMPILE_TIME_CHECK(sizeof(FILE)==sizeof(HANDLE));
HANDLE hFile;
memcpy(&hFile, file, sizeof(FILE));
if (!SetEndOfFile(hFile))
return 0;
return WriteFile(file, buf, len);
}
//__SYSCALL returns length written
int __SYSCALL WriteFile(FILE* file, char* buf, int len)
{
DWORD retlen;
COMPILE_TIME_CHECK(sizeof(FILE)==sizeof(HANDLE));
HANDLE hFile;
memcpy(&hFile, file, sizeof(FILE));
if (len < 0) return 0;
BOOL res = ::WriteFile( hFile, buf, len, &retlen, NULL);
if (res) return retlen;
return 0;
}
int
cfs_opendir (struct cfs_dir *dirp, const char *name)
{
DirList *dirs;
COMPILE_TIME_CHECK(sizeof(DirList*) <= sizeof(struct cfs_dir));
if (sdcard_efs.myCard.sectorCount == 0) return -1;
dirs = find_free_dir_list();
if (!dirs) return -1;
if (ls_openDir(dirs, &sdcard_efs.myFs, (eint8*)name) != 0) {
dirs->fs = NULL;
return -1;
}
*(DirList**)dirp = dirs;
return 0;
}
