mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-26 06:11:37 +00:00
38 lines
746 B
C
38 lines
746 B
C
/*-
|
|
* See the file LICENSE for redistribution information.
|
|
*
|
|
* Copyright (c) 1997, 1998
|
|
* Sleepycat Software. All rights reserved.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#ifndef lint
|
|
static const char sccsid[] = "@(#)os_seek.c 10.9 (Sleepycat) 4/26/98";
|
|
#endif /* not lint */
|
|
|
|
#include "db_int.h"
|
|
|
|
/*
|
|
* __os_seek --
|
|
* Seek to a page/byte offset in the file.
|
|
*
|
|
* PUBLIC: int __os_seek __P((int, size_t, db_pgno_t, u_int32_t, int, int));
|
|
*/
|
|
int
|
|
__os_seek(fd, pgsize, pageno, relative, isrewind, whence)
|
|
int fd;
|
|
size_t pgsize;
|
|
db_pgno_t pageno;
|
|
u_int32_t relative;
|
|
int isrewind, whence;
|
|
{
|
|
off_t offset;
|
|
|
|
offset = (off_t)pgsize * pageno + relative;
|
|
if (isrewind)
|
|
offset = -offset;
|
|
|
|
return (_lseeki64(fd, offset, whence) == -1 ? errno : 0);
|
|
}
|