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Added iso_image_update_sizes() API.

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This requires increasing IsoStreamIface version, as we need to add a new 
method on it. API/ABI remains compatible with older version.
This commit is contained in:
Vreixo Formoso
2008-09-07 16:32:18 +02:00
parent e79ee64a2f
commit 68419703d7
5 changed files with 135 additions and 24 deletions
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35
libisofs/stream.c
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@ -124,8 +124,28 @@ void fsrc_free(IsoStream *stream)
free(data);
}
static
int fsrc_update_size(IsoStream *stream)
{
int ret;
struct stat info;
IsoFileSource *src;
if (stream == NULL) {
return ISO_NULL_POINTER;
}
src = ((FSrcStreamData*)stream->data)->src;
ret = iso_file_source_stat(src, &info);
if (ret < 0) {
return ret;
}
((FSrcStreamData*)stream->data)->size = info.st_size;
return ISO_SUCCESS;
}
IsoStreamIface fsrc_stream_class = {
0,
1, /* update_size is defined for this stream */
"fsrc",
fsrc_open,
fsrc_close,
@ -133,7 +153,8 @@ IsoStreamIface fsrc_stream_class = {
fsrc_read,
fsrc_is_repeatable,
fsrc_get_id,
fsrc_free
fsrc_free,
fsrc_update_size
};
int iso_file_source_stream_new(IsoFileSource *src, IsoStream **stream)
@ -317,6 +338,9 @@ void cut_out_free(IsoStream *stream)
free(data);
}
/*
* TODO update cut out streams to deal with update_size(). Seems hard.
*/
IsoStreamIface cut_out_stream_class = {
0,
"cout",
@ -587,6 +611,13 @@ int iso_stream_is_repeatable(IsoStream *stream)
return stream->class->is_repeatable(stream);
}
inline
int iso_stream_update_size(IsoStream *stream)
{
IsoStreamIface* class = stream->class;
return (class->version >= 1) ? class->update_size(stream) : 0;
}
inline
void iso_stream_get_id(IsoStream *stream, unsigned int *fs_id, dev_t *dev_id,
ino_t *ino_id)