/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #include <sys/time.h> extern int nanosleep(const struct timespec *, struct timespec *); /* We use nanosleep and let it set errno, and compute the residual for us. */ unsigned int sleep(unsigned int seconds) { struct timespec req, rem; if (seconds == 0) { return 0; } req.tv_sec = seconds; req.tv_nsec = 0; /* It's not clear from the spec whether the remainder will be 0 ** if we weren't interrupted */ if (nanosleep(&req, &rem) == -1) { return (unsigned int)rem.tv_sec; } return 0; }