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/*-
* 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 10.12 (Sleepycat) 10/12/98";
#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"
#include "os_jump.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)
;
if (__db_jump.j_sleep != NULL)
return (__db_jump.j_sleep(secs, usecs));
/*
* 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);
}
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