d/freebsd-skq
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Use pread(2) and pwrite(2) instead of lseek(2) + read(2) / write(2).

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Obtained from:	NetBSD via OpenBSD
This commit is contained in:
Xin LI 2009-03-28 06:05:53 +00:00
parent 02d7f710b8
commit d3b2afad1b
2 changed files with 3 additions and 6 deletions
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3
lib/libc/db/hash/hash.c
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@ -495,8 +495,7 @@ flush_meta(HTAB *hashp)
whdrp = &whdr;
swap_header_copy(&hashp->hdr, whdrp);
#endif
if ((lseek(fp, (off_t)0, SEEK_SET) == -1) ||
((wsize = _write(fp, whdrp, sizeof(HASHHDR))) == -1))
if ((wsize = pwrite(fp, whdrp, sizeof(HASHHDR), (off_t)0)) == -1)
return (-1);
else
if (wsize != sizeof(HASHHDR)) {

6
lib/libc/db/hash/hash_page.c
View File

@ -520,8 +520,7 @@ __get_page(HTAB *hashp, char *p, u_int32_t bucket, int is_bucket, int is_disk,
page = BUCKET_TO_PAGE(bucket);
else
page = OADDR_TO_PAGE(bucket);
if ((lseek(fd, (off_t)page << hashp->BSHIFT, SEEK_SET) == -1) ||
((rsize = _read(fd, p, size)) == -1))
if ((rsize = pread(fd, p, size, (off_t)page << hashp->BSHIFT)) == -1)
return (-1);
bp = (u_int16_t *)p;
if (!rsize)
@ -587,8 +586,7 @@ __put_page(HTAB *hashp, char *p, u_int32_t bucket, int is_bucket, int is_bitmap)
page = BUCKET_TO_PAGE(bucket);
else
page = OADDR_TO_PAGE(bucket);
if ((lseek(fd, (off_t)page << hashp->BSHIFT, SEEK_SET) == -1) ||
((wsize = _write(fd, p, size)) == -1))
if ((wsize = pwrite(fd, p, size, (off_t)page << hashp->BSHIFT)) == -1)
/* Errno is set */
return (-1);
if (wsize != size) {