1 /* $NetBSD: t_condwait.c,v 1.2 2013/03/29 02:32:38 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 #include <sys/cdefs.h> 29 __RCSID("$NetBSD: t_condwait.c,v 1.2 2013/03/29 02:32:38 christos Exp $"); 30 31 #include <errno.h> 32 #include <pthread.h> 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <string.h> 36 #include <time.h> 37 #include <unistd.h> 38 39 #include <atf-c.h> 40 41 #define WAITTIME 2 /* Timeout wait secound */ 42 43 static const int debug = 1; 44 45 static void * 46 run(void *param) 47 { 48 struct timespec ts, to, te; 49 clockid_t clck; 50 pthread_condattr_t attr; 51 pthread_cond_t cond; 52 pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; 53 int ret = 0; 54 55 56 clck = *(clockid_t *)param; 57 pthread_condattr_init(&attr); 58 pthread_condattr_setclock(&attr, clck); /* MONOTONIC or MONOTONIC */ 59 pthread_cond_init(&cond, &attr); 60 61 ATF_REQUIRE_EQ((ret = pthread_mutex_lock(&m)), 0); 62 63 ATF_REQUIRE_EQ(clock_gettime(clck, &ts), 0); 64 to = ts; 65 66 if (debug) 67 printf("started: %lld.%09ld sec\n", (long long)to.tv_sec, 68 to.tv_nsec); 69 70 ts.tv_sec += WAITTIME; /* Timeout wait */ 71 72 switch (ret = pthread_cond_timedwait(&cond, &m, &ts)) { 73 case ETIMEDOUT: 74 /* Timeout */ 75 ATF_REQUIRE_EQ(clock_gettime(clck, &te), 0); 76 timespecsub(&te, &to, &to); 77 if (debug) { 78 printf("timeout: %lld.%09ld sec\n", 79 (long long)te.tv_sec, te.tv_nsec); 80 printf("elapsed: %lld.%09ld sec\n", 81 (long long)to.tv_sec, to.tv_nsec); 82 } 83 ATF_REQUIRE_EQ(to.tv_sec, WAITTIME); 84 break; 85 default: 86 ATF_REQUIRE_MSG(0, "pthread_cond_timedwait: %s", strerror(ret)); 87 } 88 89 ATF_REQUIRE_MSG(!(ret = pthread_mutex_unlock(&m)), 90 "pthread_mutex_unlock: %s", strerror(ret)); 91 pthread_exit(&ret); 92 } 93 94 static void 95 cond_wait(clockid_t clck, const char *msg) { 96 pthread_t child; 97 98 if (debug) 99 printf( "**** %s clock wait starting\n", msg); 100 ATF_REQUIRE_EQ(pthread_create(&child, NULL, run, &clck), 0); 101 ATF_REQUIRE_EQ(pthread_join(child, NULL), 0); /* wait for terminate */ 102 if (debug) 103 printf( "**** %s clock wait ended\n", msg); 104 } 105 106 ATF_TC(cond_wait_real); 107 ATF_TC_HEAD(cond_wait_real, tc) 108 { 109 atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait " 110 "with CLOCK_REALTIME"); 111 } 112 113 ATF_TC_BODY(cond_wait_real, tc) { 114 cond_wait(CLOCK_REALTIME, "CLOCK_REALTIME"); 115 } 116 117 ATF_TC(cond_wait_mono); 118 ATF_TC_HEAD(cond_wait_mono, tc) 119 { 120 atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait " 121 "with CLOCK_MONOTONIC"); 122 } 123 124 ATF_TC_BODY(cond_wait_mono, tc) { 125 cond_wait(CLOCK_MONOTONIC, "CLOCK_MONOTONIC"); 126 } 127 128 ATF_TP_ADD_TCS(tp) 129 { 130 ATF_TP_ADD_TC(tp, cond_wait_real); 131 ATF_TP_ADD_TC(tp, cond_wait_mono); 132 return 0; 133 } 134