usleep.c revision 165903
1193323Sed/* 2193323Sed * Copyright (c) 1989, 1993 3193323Sed * The Regents of the University of California. All rights reserved. 4193323Sed * 5193323Sed * Redistribution and use in source and binary forms, with or without 6193323Sed * modification, are permitted provided that the following conditions 7193323Sed * are met: 8193323Sed * 1. Redistributions of source code must retain the above copyright 9193323Sed * notice, this list of conditions and the following disclaimer. 10193323Sed * 2. Redistributions in binary form must reproduce the above copyright 11193323Sed * notice, this list of conditions and the following disclaimer in the 12193323Sed * documentation and/or other materials provided with the distribution. 13193323Sed * 4. Neither the name of the University nor the names of its contributors 14193323Sed * may be used to endorse or promote products derived from this software 15212904Sdim * without specific prior written permission. 16249423Sdim * 17249423Sdim * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18249423Sdim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19249423Sdim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20249423Sdim * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21193323Sed * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22193323Sed * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23224145Sdim * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24243830Sdim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25224145Sdim * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26224145Sdim * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27224145Sdim * SUCH DAMAGE. 28218893Sdim */ 29193323Sed 30218893Sdim#if defined(LIBC_SCCS) && !defined(lint) 31218893Sdimstatic char sccsid[] = "@(#)usleep.c 8.1 (Berkeley) 6/4/93"; 32218893Sdim#endif /* LIBC_SCCS and not lint */ 33212904Sdim#include <sys/cdefs.h> 34212904Sdim__FBSDID("$FreeBSD: head/lib/libc/gen/usleep.c 165903 2007-01-09 00:28:16Z imp $"); 35224145Sdim 36218893Sdim#include "namespace.h" 37224145Sdim#include <time.h> 38224145Sdim#include <unistd.h> 39224145Sdim#include "un-namespace.h" 40224145Sdim 41224145Sdimint 42224145Sdim__usleep(useconds) 43193323Sed useconds_t useconds; 44224145Sdim{ 45224145Sdim struct timespec time_to_sleep; 46224145Sdim 47224145Sdim time_to_sleep.tv_nsec = (useconds % 1000000) * 1000; 48224145Sdim time_to_sleep.tv_sec = useconds / 1000000; 49224145Sdim return (_nanosleep(&time_to_sleep, NULL)); 50224145Sdim} 51224145Sdim 52224145Sdim__weak_reference(__usleep, usleep); 53202878Srdivacky__weak_reference(__usleep, _usleep); 54218893Sdim