[BACK]Return to usleep.c CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / lib / libc / gen

Annotation of src/lib/libc/gen/usleep.c, Revision 1.20

1.20    ! abs         1: /*     $NetBSD: usleep.c,v 1.19 2008/04/28 20:22:59 martin Exp $       */
1.4       cgd         2:
1.12      jtc         3: /*-
                      4:  * Copyright (c) 1997 The NetBSD Foundation, Inc.
                      5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to The NetBSD Foundation
                      8:  * by J.T. Conklin.
1.1       cgd         9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  *
1.12      jtc        19:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     20:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     21:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     22:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     23:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     24:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     25:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     26:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     27:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     28:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     29:  * POSSIBILITY OF SUCH DAMAGE.
1.1       cgd        30:  */
                     31:
1.13      kleink     32: #include <sys/cdefs.h>
1.1       cgd        33: #if defined(LIBC_SCCS) && !defined(lint)
1.20    ! abs        34: __RCSID("$NetBSD: usleep.c,v 1.19 2008/04/28 20:22:59 martin Exp $");
1.1       cgd        35: #endif /* LIBC_SCCS and not lint */
                     36:
1.14      jtc        37: #include "namespace.h"
1.16      kleink     38: #include <errno.h>
1.12      jtc        39: #include <time.h>
1.1       cgd        40: #include <unistd.h>
1.14      jtc        41:
                     42: #ifdef __weak_alias
1.17      mycroft    43: __weak_alias(usleep,_usleep)
1.14      jtc        44: #endif
1.1       cgd        45:
1.16      kleink     46: int
1.20    ! abs        47: usleep(useconds_t useconds)
1.1       cgd        48: {
1.12      jtc        49:        struct timespec ts;
                     50:
1.18      elad       51:        if (useconds == 0)
                     52:                return (0);
                     53:
1.16      kleink     54:        if (useconds >= 1000000) {
                     55:                errno = EINVAL;
                     56:                return (-1);
                     57:        }
                     58:
                     59:        ts.tv_sec  = 0;
                     60:        ts.tv_nsec = useconds * 1000;
1.12      jtc        61:
                     62:        nanosleep(&ts, NULL);
1.16      kleink     63:
                     64:        return (0);
1.1       cgd        65: }

CVSweb <webmaster@jp.NetBSD.org>