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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997
* Sleepycat Software. All rights reserved.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)db_os_sleep.c 10.6 (Sleepycat) 6/28/97";
#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_ext.h"
/*
* __db_sleep --
* Yield the processor for a period of time.
*
* PUBLIC: int __db_sleep __P((u_long, u_long));
*/
int
__db_sleep(secs, usecs)
u_long secs, usecs; /* Seconds and microseconds. */
{
#ifndef _WIN32
struct timeval t;
#endif
/* 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.
*/
#ifdef _WIN32
Sleep(secs * 1000 + usecs / 1000);
return (0);
#else
t.tv_sec = secs;
t.tv_usec = usecs;
return (select(0, NULL, NULL, NULL, &t) == -1 ? errno : 0);
#endif
}
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