зеркало из https://github.com/mozilla/gecko-dev.git
56 строки
1.1 KiB
C
56 строки
1.1 KiB
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_sleep.c 10.10 (Sleepycat) 4/27/98";
|
|
#endif /* not lint */
|
|
|
|
#ifndef NO_SYSTEM_INCLUDES
|
|
#include <sys/types.h>
|
|
#ifdef HAVE_SYS_TIME_H
|
|
#include <sys/time.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_SELECT_H
|
|
#include <sys/select.h>
|
|
#endif
|
|
|
|
#include <errno.h>
|
|
#ifndef HAVE_SYS_TIME_H
|
|
#include <time.h>
|
|
#endif
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#include "db_int.h"
|
|
|
|
/*
|
|
* __os_sleep --
|
|
* Yield the processor for a period of time.
|
|
*
|
|
* PUBLIC: int __os_sleep __P((u_long, u_long));
|
|
*/
|
|
int
|
|
__os_sleep(secs, usecs)
|
|
u_long secs, usecs; /* Seconds and microseconds. */
|
|
{
|
|
struct timeval t;
|
|
|
|
/* Don't require that the values be normalized. */
|
|
for (; usecs >= 1000000; ++secs, usecs -= 1000000)
|
|
;
|
|
|
|
/*
|
|
* It's important that we yield the processor here so that other
|
|
* processes or threads are permitted to run.
|
|
*/
|
|
t.tv_sec = secs;
|
|
t.tv_usec = usecs;
|
|
return (select(0, NULL, NULL, NULL, &t) == -1 ? errno : 0);
|
|
}
|