os_sleep.c   [plain text]

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 1997,2007 Oracle.  All rights reserved.
 *
 * $Id: os_sleep.c,v 12.8 2007/05/17 15:15:49 bostic Exp $
 */

#include "db_config.h"

#include "db_int.h"

/*
 * __os_sleep --
 *	Yield the processor for a period of time.
 */
void
__os_sleep(dbenv, secs, usecs)
	DB_ENV *dbenv;
	u_long secs, usecs;		/* Seconds and microseconds. */
{
	COMPQUIET(dbenv, NULL);

	/*
	 * It's important we yield the processor here so other processes or
	 * threads can run.
	 *
	 * Sheer raving paranoia -- don't sleep for 0 time, in case some
	 * implementation doesn't yield the processor in that case.
	 */
	Sleep(secs * MS_PER_SEC + (usecs / US_PER_MS) + 1);
}