1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 29 #include <sys/cdefs.h> 30 #include <errno.h> 31 #include <pthread.h> 32 33 #include "threads.h" 34 35 int 36 cnd_broadcast(cnd_t *cond) 37 { 38 39 if (pthread_cond_broadcast(cond) != 0) 40 return (thrd_error); 41 return (thrd_success); 42 } 43 44 void 45 cnd_destroy(cnd_t *cond) 46 { 47 48 (void)pthread_cond_destroy(cond); 49 } 50 51 int 52 cnd_init(cnd_t *cond) 53 { 54 55 switch (pthread_cond_init(cond, NULL)) { 56 case 0: 57 return (thrd_success); 58 case ENOMEM: 59 return (thrd_nomem); 60 default: 61 return (thrd_error); 62 } 63 } 64 65 int 66 cnd_signal(cnd_t *cond) 67 { 68 69 if (pthread_cond_signal(cond) != 0) 70 return (thrd_error); 71 return (thrd_success); 72 } 73 74 int 75 cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mtx, 76 const struct timespec *restrict ts) 77 { 78 79 switch (pthread_cond_timedwait(cond, mtx, ts)) { 80 case 0: 81 return (thrd_success); 82 case ETIMEDOUT: 83 return (thrd_timedout); 84 default: 85 return (thrd_error); 86 } 87 } 88 89 int 90 cnd_wait(cnd_t *cond, mtx_t *mtx) 91 { 92 93 if (pthread_cond_wait(cond, mtx) != 0) 94 return (thrd_error); 95 return (thrd_success); 96 } 97