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cbfstool: provide buffer_offset() 

Instead of people open coding the offset field access within a
struct buffer provide buffer_offset() so that the implementation
can change if needed without high touch in the code base.

Change-Id: I751c7145687a8529ab549d87e412b7f2d1fb90ed
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13468
Tested-by: build bot (Jenkins)
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
This commit is contained in:
Aaron Durbin 2016-01-26 09:01:14 -06:00
parent 0a97d7eeba
commit 2dd5f4cce6
1 changed files with 6 additions and 1 deletions
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7
util/cbfstool/common.h
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@ -62,6 +62,11 @@ static inline size_t buffer_size(const struct buffer *b)
return b->size; return b->size;
} }
static inline size_t buffer_offset(const struct buffer *b)
{
return b->offset;
}
/* /*
* Shrink a buffer toward the beginning of its previous space. * Shrink a buffer toward the beginning of its previous space.
* Afterward, buffer_delete() remains the means of cleaning it up. */ * Afterward, buffer_delete() remains the means of cleaning it up. */
@ -125,7 +130,7 @@ static inline void *buffer_get_original_backing(const struct buffer *b)
{ {
if (!b) if (!b)
return NULL; return NULL;
return b->data - b->offset; return buffer_get(b) - buffer_offset(b);
} }
/* Creates an empty memory buffer with given size. /* Creates an empty memory buffer with given size.