1 /*- 2 * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <errno.h> 33 #include <pthread.h> 34 35 #include "threads.h" 36 37 int 38 cnd_broadcast(cnd_t *cond) 39 { 40 41 if (pthread_cond_broadcast(cond) != 0) 42 return (thrd_error); 43 return (thrd_success); 44 } 45 46 void 47 cnd_destroy(cnd_t *cond) 48 { 49 50 (void)pthread_cond_destroy(cond); 51 } 52 53 int 54 cnd_init(cnd_t *cond) 55 { 56 57 switch (pthread_cond_init(cond, NULL)) { 58 case 0: 59 return (thrd_success); 60 case ENOMEM: 61 return (thrd_nomem); 62 default: 63 return (thrd_error); 64 } 65 } 66 67 int 68 cnd_signal(cnd_t *cond) 69 { 70 71 if (pthread_cond_signal(cond) != 0) 72 return (thrd_error); 73 return (thrd_success); 74 } 75 76 int 77 cnd_timedwait(cnd_t *restrict cond, mtx_t *restrict mtx, 78 const struct timespec *restrict ts) 79 { 80 81 switch (pthread_cond_timedwait(cond, mtx, ts)) { 82 case 0: 83 return (thrd_success); 84 case ETIMEDOUT: 85 return (thrd_timedout); 86 default: 87 return (thrd_error); 88 } 89 } 90 91 int 92 cnd_wait(cnd_t *cond, mtx_t *mtx) 93 { 94 95 if (pthread_cond_wait(cond, mtx) != 0) 96 return (thrd_error); 97 return (thrd_success); 98 } 99