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@ -16,7 +16,12 @@
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typedef struct
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{
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IsoFileSource *src;
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} _FSrcStream;
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/* key for file identification inside filesystem */
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dev_t dev_id;
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ino_t ino_id;
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off_t size; /**< size of this file */
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} FSrcStreamData;
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static
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int fsrc_open(IsoStream *stream)
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@ -25,7 +30,7 @@ int fsrc_open(IsoStream *stream)
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if (stream == NULL) {
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return ISO_NULL_POINTER;
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}
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src = (IsoFileSource*)stream->data;
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src = ((FSrcStreamData*)stream->data)->src;
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return src->open(src);
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}
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@ -36,25 +41,17 @@ int fsrc_close(IsoStream *stream)
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if (stream == NULL) {
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return ISO_NULL_POINTER;
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}
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src = (IsoFileSource*)stream->data;
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src = ((FSrcStreamData*)stream->data)->src;
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return src->close(src);
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}
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static
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off_t fsrc_get_size(IsoStream *stream)
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{
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struct stat info;
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IsoFileSource *src;
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if (stream == NULL) {
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return ISO_NULL_POINTER;
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}
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src = (IsoFileSource*)stream->data;
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if (src->lstat(src, &info) < 0) {
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return (off_t) -1;
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}
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FSrcStreamData *data;
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data = (FSrcStreamData*)stream->data;
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return info.st_size;
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return data->size;
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}
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static
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@ -64,7 +61,7 @@ int fsrc_read(IsoStream *stream, void *buf, size_t count)
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if (stream == NULL) {
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return ISO_NULL_POINTER;
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}
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src = (IsoFileSource*)stream->data;
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src = ((FSrcStreamData*)stream->data)->src;
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return src->read(src, buf, count);
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}
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@ -73,17 +70,18 @@ int fsrc_is_repeatable(IsoStream *stream)
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{
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int ret;
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struct stat info;
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IsoFileSource *src;
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FSrcStreamData *data;
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if (stream == NULL) {
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return ISO_NULL_POINTER;
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}
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src = (IsoFileSource*)stream->data;
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data = (FSrcStreamData*)stream->data;
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ret = src->stat(src, &info);
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/* mode is not cached, this function is only useful for filters */
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ret = data->src->stat(data->src, &info);
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if (ret < 0) {
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return ret;
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}
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if (info.st_mode & (S_IFREG | S_IFBLK)) {
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if (S_ISREG(info.st_mode) || S_ISBLK(info.st_mode)) {
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return 1;
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} else {
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return 0;
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@ -94,38 +92,33 @@ static
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int fsrc_get_id(IsoStream *stream, unsigned int *fs_id, dev_t *dev_id,
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ino_t *ino_id)
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{
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int result;
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struct stat info;
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IsoFileSource *src;
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FSrcStreamData *data;
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IsoFilesystem *fs;
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if (stream == NULL || fs_id == NULL || dev_id == NULL || ino_id == NULL) {
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return ISO_NULL_POINTER;
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}
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src = (IsoFileSource*)stream->data;
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data = (FSrcStreamData*)stream->data;
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fs = src->get_filesystem(src);
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fs = data->src->get_filesystem(data->src);
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*fs_id = fs->get_id(fs);
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if (fs_id == 0) {
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return 0;
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}
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result = src->stat(src, &info);
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if (result < 0) {
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return result;
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}
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*dev_id = info.st_dev;
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*ino_id = info.st_ino;
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*dev_id = data->dev_id;
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*ino_id = data->ino_id;
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return ISO_SUCCESS;
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}
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static
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void fsrc_free(IsoStream *stream)
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{
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IsoFileSource *src;
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src = (IsoFileSource*)stream->data;
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iso_file_source_unref(src);
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FSrcStreamData *data;
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data = (FSrcStreamData*)stream->data;
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iso_file_source_unref(data->src);
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free(data);
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}
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int iso_file_source_stream_new(IsoFileSource *src, IsoStream **stream)
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@ -133,6 +126,8 @@ int iso_file_source_stream_new(IsoFileSource *src, IsoStream **stream)
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int r;
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struct stat info;
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IsoStream *str;
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FSrcStreamData *data;
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if (src == NULL || stream == NULL) {
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return ISO_NULL_POINTER;
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}
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@ -149,9 +144,20 @@ int iso_file_source_stream_new(IsoFileSource *src, IsoStream **stream)
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if (str == NULL) {
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return ISO_MEM_ERROR;
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}
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data = malloc(sizeof(FSrcStreamData));
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if (str == NULL) {
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free(str);
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return ISO_MEM_ERROR;
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}
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/* take the ref to IsoFileSource */
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data->src = src;
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data->dev_id = info.st_dev;
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data->ino_id = info.st_ino;
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data->size = info.st_size;
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str->refcount = 1;
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str->data = src;
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str->data = data;
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str->open = fsrc_open;
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str->close = fsrc_close;
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str->get_size = fsrc_get_size;
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