1 /* $NetBSD: t_condwait.c,v 1.5 2017/01/16 16:29:19 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 1.5 2017/01/16 16:29:19 christos Exp $"); 30 31 #include <sys/time.h> 32 #include <errno.h> 33 #include <pthread.h> 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <string.h> 37 #include <time.h> 38 #include <unistd.h> 39 40 #include <atf-c.h> 41 42 #include "isqemu.h" 43 44 #include "h_common.h" 45 46 #define WAITTIME 2 /* Timeout wait secound */ 47 48 static const int debug = 1; 49 50 static void * 51 run(void *param) 52 { 53 struct timespec ts, to, te; 54 clockid_t clck; 55 pthread_condattr_t attr; 56 pthread_cond_t cond; 57 pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; 58 int ret = 0; 59 60 61 clck = *(clockid_t *)param; 62 PTHREAD_REQUIRE(pthread_condattr_init(&attr)); 63 PTHREAD_REQUIRE(pthread_condattr_setclock(&attr, clck)); 64 pthread_cond_init(&cond, &attr); 65 66 ATF_REQUIRE_EQ((ret = pthread_mutex_lock(&m)), 0); 67 68 ATF_REQUIRE_EQ(clock_gettime(clck, &ts), 0); 69 to = ts; 70 71 if (debug) 72 printf("started: %lld.%09ld sec\n", (long long)to.tv_sec, 73 to.tv_nsec); 74 75 ts.tv_sec += WAITTIME; /* Timeout wait */ 76 77 switch (ret = pthread_cond_timedwait(&cond, &m, &ts)) { 78 case ETIMEDOUT: 79 /* Timeout */ 80 ATF_REQUIRE_EQ(clock_gettime(clck, &te), 0); 81 timespecsub(&te, &to, &to); 82 if (debug) { 83 printf("timeout: %lld.%09ld sec\n", 84 (long long)te.tv_sec, te.tv_nsec); 85 printf("elapsed: %lld.%09ld sec\n", 86 (long long)to.tv_sec, to.tv_nsec); 87 } 88 if (isQEMU()) { 89 double to_seconds = to.tv_sec + 1e-9 * to.tv_nsec; 90 ATF_REQUIRE(to_seconds >= WAITTIME * 0.9); 91 /* Loose upper limit because of qemu timing bugs */ 92 ATF_REQUIRE(to_seconds < WAITTIME * 2.5); 93 } else { 94 ATF_REQUIRE_EQ(to.tv_sec, WAITTIME); 95 } 96 break; 97 default: 98 ATF_REQUIRE_MSG(0, "pthread_cond_timedwait: %s", strerror(ret)); 99 } 100 101 ATF_REQUIRE_MSG(!(ret = pthread_mutex_unlock(&m)), 102 "pthread_mutex_unlock: %s", strerror(ret)); 103 pthread_exit(&ret); 104 } 105 106 static void 107 cond_wait(clockid_t clck, const char *msg) { 108 pthread_t child; 109 110 if (debug) 111 printf( "**** %s clock wait starting\n", msg); 112 ATF_REQUIRE_EQ(pthread_create(&child, NULL, run, &clck), 0); 113 ATF_REQUIRE_EQ(pthread_join(child, NULL), 0); /* wait for terminate */ 114 if (debug) 115 printf( "**** %s clock wait ended\n", msg); 116 } 117 118 ATF_TC(cond_wait_real); 119 ATF_TC_HEAD(cond_wait_real, tc) 120 { 121 atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait " 122 "with CLOCK_REALTIME"); 123 } 124 125 ATF_TC_BODY(cond_wait_real, tc) { 126 cond_wait(CLOCK_REALTIME, "CLOCK_REALTIME"); 127 } 128 129 ATF_TC(cond_wait_mono); 130 ATF_TC_HEAD(cond_wait_mono, tc) 131 { 132 atf_tc_set_md_var(tc, "descr", "Checks pthread_cond_timedwait " 133 "with CLOCK_MONOTONIC"); 134 } 135 136 ATF_TC_BODY(cond_wait_mono, tc) { 137 cond_wait(CLOCK_MONOTONIC, "CLOCK_MONOTONIC"); 138 } 139 140 ATF_TP_ADD_TCS(tp) 141 { 142 ATF_TP_ADD_TC(tp, cond_wait_real); 143 ATF_TP_ADD_TC(tp, cond_wait_mono); 144 return 0; 145 } 146