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Major API change:

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1. Introduced a cfs_offset_t type that designates file offsets. unsigned int
was insufficient on several platforms with non-volatile storage that exceed
the capacity of unsigned int.

2. Switched cfs_seek signature to POSIX style with a "whence" parameter.
This commit is contained in:
nvt-se 2009-02-27 14:25:37 +00:00
parent 5e038640e2
commit 3191a2568c
6 changed files with 78 additions and 44 deletions
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17
core/cfs/cfs-posix.c
View file

@ -30,7 +30,7 @@
*
* Author: Adam Dunkels <adam@sics.se>
*
* $Id: cfs-posix.c,v 1.12 2008/11/24 10:56:55 nvt-se Exp $
* $Id: cfs-posix.c,v 1.13 2009/02/27 14:25:38 nvt-se Exp $
*/
#include <stdio.h>
@ -84,10 +84,19 @@ cfs_write(int f, const void *b, unsigned int l)
return write(f, b, l);
}
/*---------------------------------------------------------------------------*/
unsigned int
cfs_seek(int f, unsigned int o)
cfs_offset_t
cfs_seek(int f, unsigned int o, int w)
{
return lseek(f, o, SEEK_SET);
if(w == CFS_SEEK_SET) {
w = SEEK_SET;
} else if(w == CFS_SEEK_CUR) {
w = SEEK_CUR;
} else if(w == CFS_SEEK_END) {
w = SEEK_END;
} else {
return (cfs_offset_t)-1;
}
return lseek(f, o, w);
}
/*---------------------------------------------------------------------------*/
int