1 /* $NetBSD: t_timer_create.c,v 1.4 2012/03/18 07:00:52 jruoho Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 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 29 #include <atf-c.h> 30 #include <errno.h> 31 #include <stdio.h> 32 #include <signal.h> 33 #include <string.h> 34 #include <time.h> 35 #include <unistd.h> 36 37 static timer_t t; 38 static bool fail = true; 39 40 static void 41 timer_signal_handler(int signo, siginfo_t *si, void *osi) 42 { 43 timer_t *tp; 44 45 tp = si->si_value.sival_ptr; 46 47 if (*tp == t && signo == SIGALRM) 48 fail = false; 49 50 (void)fprintf(stderr, "%s: %s\n", __func__, strsignal(signo)); 51 } 52 53 static void 54 timer_signal_create(clockid_t cid, bool expire) 55 { 56 struct itimerspec tim; 57 struct sigaction act; 58 struct sigevent evt; 59 sigset_t set; 60 61 t = 0; 62 fail = true; 63 64 (void)memset(&evt, 0, sizeof(struct sigevent)); 65 (void)memset(&act, 0, sizeof(struct sigaction)); 66 (void)memset(&tim, 0, sizeof(struct itimerspec)); 67 68 /* 69 * Set handler. 70 */ 71 act.sa_flags = SA_SIGINFO; 72 act.sa_sigaction = timer_signal_handler; 73 74 ATF_REQUIRE(sigemptyset(&set) == 0); 75 ATF_REQUIRE(sigemptyset(&act.sa_mask) == 0); 76 77 /* 78 * Block SIGALRM while configuring the timer. 79 */ 80 ATF_REQUIRE(sigaction(SIGALRM, &act, NULL) == 0); 81 ATF_REQUIRE(sigaddset(&set, SIGALRM) == 0); 82 ATF_REQUIRE(sigprocmask(SIG_SETMASK, &set, NULL) == 0); 83 84 /* 85 * Create the timer (SIGEV_SIGNAL). 86 */ 87 evt.sigev_signo = SIGALRM; 88 evt.sigev_value.sival_ptr = &t; 89 evt.sigev_notify = SIGEV_SIGNAL; 90 91 ATF_REQUIRE(timer_create(cid, &evt, &t) == 0); 92 93 /* 94 * Start the timer. After this, unblock the signal. 95 */ 96 tim.it_value.tv_sec = expire ? 5 : 1; 97 tim.it_value.tv_nsec = 0; 98 99 ATF_REQUIRE(timer_settime(t, 0, &tim, NULL) == 0); 100 101 (void)sigprocmask(SIG_UNBLOCK, &set, NULL); 102 (void)sleep(2); 103 104 if (expire) { 105 if (!fail) 106 atf_tc_fail("timer fired too soon"); 107 } else { 108 if (fail) 109 atf_tc_fail("timer failed to fire"); 110 } 111 112 ATF_REQUIRE(timer_delete(t) == 0); 113 } 114 115 ATF_TC(timer_create_err); 116 ATF_TC_HEAD(timer_create_err, tc) 117 { 118 atf_tc_set_md_var(tc, "descr", 119 "Check errors from timer_create(2) (PR lib/42434"); 120 } 121 122 ATF_TC_BODY(timer_create_err, tc) 123 { 124 struct sigevent ev; 125 126 (void)memset(&ev, 0, sizeof(struct sigevent)); 127 128 errno = 0; 129 ev.sigev_signo = -1; 130 ev.sigev_notify = SIGEV_SIGNAL; 131 132 ATF_REQUIRE_ERRNO(EINVAL, timer_create(CLOCK_REALTIME, &ev, &t) == -1); 133 134 errno = 0; 135 ev.sigev_signo = SIGUSR1; 136 ev.sigev_notify = SIGEV_THREAD + 100; 137 138 ATF_REQUIRE_ERRNO(EINVAL, timer_create(CLOCK_REALTIME, &ev, &t) == -1); 139 } 140 141 ATF_TC(timer_create_real); 142 ATF_TC_HEAD(timer_create_real, tc) 143 { 144 145 atf_tc_set_md_var(tc, "descr", 146 "Checks timer_create(2) with CLOCK_REALTIME and sigevent(3), " 147 "SIGEV_SIGNAL"); 148 } 149 150 ATF_TC_BODY(timer_create_real, tc) 151 { 152 timer_signal_create(CLOCK_REALTIME, false); 153 } 154 155 ATF_TC(timer_create_mono); 156 ATF_TC_HEAD(timer_create_mono, tc) 157 { 158 159 atf_tc_set_md_var(tc, "descr", 160 "Checks timer_create(2) with CLOCK_MONOTONIC and sigevent(3), " 161 "SIGEV_SIGNAL"); 162 } 163 164 ATF_TC_BODY(timer_create_mono, tc) 165 { 166 timer_signal_create(CLOCK_MONOTONIC, false); 167 } 168 169 ATF_TC(timer_create_real_expire); 170 ATF_TC_HEAD(timer_create_real_expire, tc) 171 { 172 173 atf_tc_set_md_var(tc, "descr", 174 "Checks timer_create(2) with CLOCK_REALTIME and sigevent(3), " 175 "SIGEV_SIGNAL, with expiration"); 176 } 177 178 ATF_TC_BODY(timer_create_real_expire, tc) 179 { 180 timer_signal_create(CLOCK_REALTIME, true); 181 } 182 183 ATF_TC(timer_create_mono_expire); 184 ATF_TC_HEAD(timer_create_mono_expire, tc) 185 { 186 187 atf_tc_set_md_var(tc, "descr", 188 "Checks timer_create(2) with CLOCK_MONOTONIC and sigevent(3), " 189 "SIGEV_SIGNAL, with expiration"); 190 } 191 192 ATF_TC_BODY(timer_create_mono_expire, tc) 193 { 194 timer_signal_create(CLOCK_MONOTONIC, true); 195 } 196 197 ATF_TP_ADD_TCS(tp) 198 { 199 200 ATF_TP_ADD_TC(tp, timer_create_err); 201 ATF_TP_ADD_TC(tp, timer_create_real); 202 ATF_TP_ADD_TC(tp, timer_create_mono); 203 ATF_TP_ADD_TC(tp, timer_create_real_expire); 204 ATF_TP_ADD_TC(tp, timer_create_mono_expire); 205 206 return atf_no_error(); 207 } 208