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fileio: fileio_size() can now fail

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Part of making the fileio API more robust.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
This commit is contained in:
Øyvind Harboe
2010-09-29 09:11:01 +02:00
parent 3a693ef526
commit 3931b99d14
9 changed files with 92 additions and 20 deletions
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14
src/helper/fileio.c
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@@ -245,8 +245,18 @@ int fileio_write_u32(struct fileio *fileio_p, uint32_t data)
return retval;
}
int fileio_size(struct fileio *fileio_p)
/**
* FIX!!!!
*
* For now this can not fail, but that's because a seek was executed
* on startup.
*
* Avoiding the seek on startup opens up for using streams.
*
*/
int fileio_size(struct fileio *fileio_p, int *size)
{
struct fileio_internal *fileio = fileio_p->fp;
return fileio->size;
*size = fileio->size;
return ERROR_OK;
}

2
src/helper/fileio.h
View File

@@ -66,7 +66,7 @@ int fileio_write(struct fileio *fileio,
int fileio_read_u32(struct fileio *fileio, uint32_t *data);
int fileio_write_u32(struct fileio *fileio, uint32_t data);
int fileio_size(struct fileio *fileio);
int fileio_size(struct fileio *fileio, int *size);
#define ERROR_FILEIO_LOCATION_UNKNOWN (-1200)
#define ERROR_FILEIO_NOT_FOUND (-1201)