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 <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include <errno.h> 35 #include <pthread.h> 36 37 #include "threads.h" 38 39 int 40 cnd_broadcast(cnd_t *cond) 41 { 42 43 if (pthread_cond_broadcast(cond) != 0) 44 return (thrd_error); 45 return (thrd_success); 46 } 47 48 void 49 cnd_destroy(cnd_t *cond) 50 { 51 52 (void)pthread_cond_destroy(cond); 53 } 54 55 int 56 cnd_init(cnd_t *cond) 57 { 58 59 switch (pthread_cond_init(cond, NULL)) { 60 case 0: 61 return (thrd_success); 62 case ENOMEM: 63 return (thrd_nomem); 64 default: 65 return (thrd_error); 66 } 67 } 68 69 int 70 cnd_signal(cnd_t *cond) 71 { 72 73 if (pthread_cond_signal(cond) != 0) 74 return (thrd_error); 75 return (thrd_success); 76 } 77 78 int 79 cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mtx, 80 const struct timespec *restrict ts) 81 { 82 83 switch (pthread_cond_timedwait(cond, mtx, ts)) { 84 case 0: 85 return (thrd_success); 86 case ETIMEDOUT: 87 return (thrd_timedout); 88 default: 89 return (thrd_error); 90 } 91 } 92 93 int 94 cnd_wait(cnd_t *cond, mtx_t *mtx) 95 { 96 97 if (pthread_cond_wait(cond, mtx) != 0) 98 return (thrd_error); 99 return (thrd_success); 100 } 101