1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <errno.h> 32 #include <pthread.h> 33 34 #include "threads.h" 35 36 int 37 cnd_broadcast(cnd_t *cond) 38 { 39 40 if (pthread_cond_broadcast(cond) != 0) 41 return (thrd_error); 42 return (thrd_success); 43 } 44 45 void 46 cnd_destroy(cnd_t *cond) 47 { 48 49 (void)pthread_cond_destroy(cond); 50 } 51 52 int 53 cnd_init(cnd_t *cond) 54 { 55 56 switch (pthread_cond_init(cond, NULL)) { 57 case 0: 58 return (thrd_success); 59 case ENOMEM: 60 return (thrd_nomem); 61 default: 62 return (thrd_error); 63 } 64 } 65 66 int 67 cnd_signal(cnd_t *cond) 68 { 69 70 if (pthread_cond_signal(cond) != 0) 71 return (thrd_error); 72 return (thrd_success); 73 } 74 75 int 76 cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mtx, 77 const struct timespec *restrict ts) 78 { 79 80 switch (pthread_cond_timedwait(cond, mtx, ts)) { 81 case 0: 82 return (thrd_success); 83 case ETIMEDOUT: 84 return (thrd_timedout); 85 default: 86 return (thrd_error); 87 } 88 } 89 90 int 91 cnd_wait(cnd_t *cond, mtx_t *mtx) 92 { 93 94 if (pthread_cond_wait(cond, mtx) != 0) 95 return (thrd_error); 96 return (thrd_success); 97 } 98