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Change IsoStream get_id definition, to always provide a valid id.

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Streams are a better place to handle source content identification, when
the IsoFilesystem is unable to provide a valid identification.
This commit is contained in:
Vreixo Formoso
2008-01-10 17:56:39 +01:00
parent 47bdbd76b5
commit 2ad6f5f667
3 changed files with 53 additions and 54 deletions
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20
src/stream.h
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@ -13,6 +13,13 @@
*/
#include "fsource.h"
/**
* serial number to be used when you can't get a valid id for a Stream by other
* means. If you use this, both fs_id and dev_id should be set to 0.
* This must be incremented each time you get a reference to it.
*/
extern ino_t serial_id;
/*
* Some functions here will be moved to libisofs.h when we expose
* Streams.
@ -70,14 +77,9 @@ typedef struct IsoStream_Iface
int (*is_repeatable)(IsoStream *stream);
/**
* Get an unique identifier for the IsoStream. If your implementation
* is unable to return a valid identifier, this function should return
* 0.
*
* @return
* 1 on success, 0 if idenfier is not valid, < 0 error
* Get an unique identifier for the IsoStream.
*/
int (*get_id)(IsoStream *stream, unsigned int *fs_id, dev_t *dev_id,
void (*get_id)(IsoStream *stream, unsigned int *fs_id, dev_t *dev_id,
ino_t *ino_id);
/**
@ -135,10 +137,10 @@ int iso_stream_is_repeatable(IsoStream *stream)
}
extern inline
int iso_stream_get_id(IsoStream *stream, unsigned int *fs_id, dev_t *dev_id,
void iso_stream_get_id(IsoStream *stream, unsigned int *fs_id, dev_t *dev_id,
ino_t *ino_id)
{
return stream->class->get_id(stream, fs_id, dev_id, ino_id);
stream->class->get_id(stream, fs_id, dev_id, ino_id);
}
extern inline