tests/lib/libc/sys/t_timer_create.c

   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 }