/*-
 * Copyright (c) 2014-2018 MongoDB, Inc.
 * Copyright (c) 2008-2014 WiredTiger, Inc.
 *	All rights reserved.
 *
 * See the file LICENSE for redistribution information.
 */

#include "wt_internal.h"

/*
 * __wt_sleep --
 *	Pause the thread of control.
 */
void
__wt_sleep(uint64_t seconds, uint64_t micro_seconds)
    WT_GCC_FUNC_ATTRIBUTE((visibility("default")))
{
	struct timeval t;

	/*
	 * Sleeping isn't documented as a memory barrier, and it's a reasonable
	 * expectation to have. There's no reason not to explicitly include a
	 * barrier since we're giving up the CPU, and ensures callers are never
	 * surprised.
	 */
	WT_FULL_BARRIER();

	t.tv_sec = (time_t)(seconds + micro_seconds / WT_MILLION);
	t.tv_usec = (suseconds_t)(micro_seconds % WT_MILLION);

	(void)select(0, NULL, NULL, NULL, &t);
}
