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Code drop from //branches/cupcake/...@124589

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The Android Open Source Project
2008-12-17 18:03:48 -08:00
parent a27d2baa0c
commit 4e468ed2eb
287 changed files with 11498 additions and 344 deletions
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22
libc/unistd/pwrite.c
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@@ -27,23 +27,11 @@
*/
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
/*
* Non-atomic emulation of the pwrite system call.
*/
ssize_t pwrite(int fd, void *buf, size_t count, off_t offset)
extern int __pwrite64(int fd, void *buf, size_t nbytes, off_t lo, off_t hi);
ssize_t pwrite(int fd, void *buf, size_t nbytes, off_t offset)
{
int save_errno;
ssize_t nwrite;
off_t save_offset = lseek(fd, offset, SEEK_SET);
if (save_offset < 0) {
return -1;
}
nwrite = write(fd, buf, count);
save_errno = errno;
/* Even if the write failed, try to restore the seek pointer */
lseek(fd, save_offset, SEEK_SET);
errno = save_errno;
return nwrite;
return __pwrite64(fd, buf, nbytes, offset, 0);
}