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Annotation of src/lib/libc/gen/usleep.c, Revision 1.16

1.16    ! kleink      1: /*     $NetBSD: usleep.c,v 1.15 1997/08/19 04:34:15 mikel 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:  * 3. All advertising materials mentioning features or use of this software
                     19:  *    must display the following acknowledgement:
1.12      jtc        20:  *        This product includes software developed by the NetBSD
                     21:  *        Foundation, Inc. and its contributors.
                     22:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     23:  *    contributors may be used to endorse or promote products derived
                     24:  *    from this software without specific prior written permission.
1.1       cgd        25:  *
1.12      jtc        26:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     27:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     28:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     29:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     30:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     31:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     32:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     33:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     34:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     35:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     36:  * POSSIBILITY OF SUCH DAMAGE.
1.1       cgd        37:  */
                     38:
1.13      kleink     39: #include <sys/cdefs.h>
1.1       cgd        40: #if defined(LIBC_SCCS) && !defined(lint)
1.16    ! kleink     41: __RCSID("$NetBSD: usleep.c,v 1.15 1997/08/19 04:34:15 mikel Exp $");
1.1       cgd        42: #endif /* LIBC_SCCS and not lint */
                     43:
1.14      jtc        44: #include "namespace.h"
1.16    ! kleink     45: #include <errno.h>
1.12      jtc        46: #include <time.h>
1.1       cgd        47: #include <unistd.h>
1.14      jtc        48:
                     49: #ifdef __weak_alias
                     50: __weak_alias(usleep,_usleep);
                     51: #endif
1.1       cgd        52:
1.16    ! kleink     53: int
1.1       cgd        54: usleep(useconds)
1.16    ! kleink     55:        useconds_t useconds;
1.1       cgd        56: {
1.12      jtc        57:        struct timespec ts;
                     58:
1.16    ! kleink     59:        if (useconds >= 1000000) {
        !            60:                errno = EINVAL;
        !            61:                return (-1);
        !            62:        }
        !            63:
        !            64:        ts.tv_sec  = 0;
        !            65:        ts.tv_nsec = useconds * 1000;
1.12      jtc        66:
                     67:        nanosleep(&ts, NULL);
1.16    ! kleink     68:
        !            69:        return (0);
1.1       cgd        70: }

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