chd_error chd_file::open(struct zfile *file, bool writeable, chd_file *parent)
{
// make sure we don't already have a file open
if (m_file != NULL)
return CHDERR_ALREADY_OPEN;
// open the file
m_file = file;
m_owns_file = false;
m_parent = parent;
return open_common(writeable);
}
static int open_avdec(void * priv, const char * location)
{
bgav_options_t * opt;
avdec_priv * avdec = priv;
avdec->dec = bgav_create();
opt = bgav_get_options(avdec->dec);
bgav_options_copy(opt, avdec->opt);
if(!bgav_open(avdec->dec, location))
return 0;
return open_common(avdec);
}
static int open_io_avdec(void * priv, gavf_io_t * io)
{
bgav_options_t * opt;
avdec_priv * avdec = priv;
avdec->dec = bgav_create();
opt = bgav_get_options(avdec->dec);
bgav_options_copy(opt, avdec->opt);
if(!bgav_open_callbacks(avdec->dec, read_callback,
gavf_io_can_seek(io) ? seek_callback : 0, io,
gavf_io_filename(io), gavf_io_mimetype(io),
gavf_io_total_bytes(io)))
return 0;
return open_common(avdec);
}
/* Full direct path refers to both the [in]existence of a file, its stat and
* content */
/* Full path refers to the full direct path and any dereferences of
* symlinks from it */
/* All outputs to the full path also output (non-exclusively) to the
* containing directory */
/* For read: Depends on the full path */
/* For write: Outputs the full path */
DEFINE_WRAPPER(int, open, (const char *path, int flags, ...))
{
va_list args;
va_start(args, flags);
mode_t mode;
bool res = open_common(path, flags, args, &mode);
va_end(args);
if(!res) return PERM_ERROR(-1, "open \"%s\"", path);
/* open_common handles the reporting */
return SILENT_CALL_REAL(int, open, path, flags, mode);
}
/* Ditto open */
DEFINE_WRAPPER(int, open64, (const char *path, int flags, ...))
{
va_list args;
va_start(args, flags);
mode_t mode;
bool res = open_common(path, flags, args, &mode);
va_end(args);
