tests/lib/libc/gen/t_raise.c

   1 /*      $NetBSD: t_raise.c,v 1.5 2011/05/10 12:43:42 jruoho Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jukka Ruohonen.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #include <sys/cdefs.h>
  32 __RCSID("$NetBSD: t_raise.c,v 1.5 2011/05/10 12:43:42 jruoho Exp $");
  33
  34 #include <atf-c.h>
  35
  36 #include <signal.h>
  37 #include <string.h>
  38 #include <time.h>
  39 #include <unistd.h>
  40
  41 static bool     fail;
  42 static int      count;
  43 static void     handler_err(int);
  44 static void     handler_ret(int);
  45 static void     handler_stress(int);
  46 static int      sig[] = { SIGALRM, SIGIO, SIGUSR1, SIGUSR2, SIGPWR };
  47
  48 static void
  49 handler_stress(int signo)
  50 {
  51         count++;
  52 }
  53
  54 static void
  55 handler_err(int signo)
  56 {
  57         size_t i;
  58
  59         for (i = 0; i < __arraycount(sig); i++) {
  60
  61                 if (sig[i] == signo) {
  62                         fail = false;
  63                         break;
  64                 }
  65         }
  66 }
  67
  68 static void
  69 handler_ret(int signo)
  70 {
  71
  72         (void)sleep(1);
  73
  74         fail = false;
  75 }
  76
  77 ATF_TC(raise_err);
  78 ATF_TC_HEAD(raise_err, tc)
  79 {
  80         atf_tc_set_md_var(tc, "descr", "Test raise(3) for invalid parameters");
  81 }
  82
  83 ATF_TC_BODY(raise_err, tc)
  84 {
  85         int i = 0;
  86
  87         while (i < 10) {
  88
  89                 ATF_REQUIRE(raise(10240 + i) == -1);
  90
  91                 i++;
  92         }
  93 }
  94
  95 ATF_TC(raise_ret);
  96 ATF_TC_HEAD(raise_ret, tc)
  97 {
  98         atf_tc_set_md_var(tc, "descr", "Test return order of raise(3)");
  99 }
 100
 101 ATF_TC_BODY(raise_ret, tc)
 102 {
 103         struct sigaction sa;
 104
 105         fail = true;
 106
 107         sa.sa_flags = 0;
 108         sa.sa_handler = handler_ret;
 109
 110         /*
 111          * Verify that raise(3) does not return
 112          * before the signal handler returns.
 113          */
 114         ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
 115         ATF_REQUIRE(sigaction(SIGUSR1, &sa, 0) == 0);
 116         ATF_REQUIRE(raise(SIGUSR1) == 0);
 117
 118         if (fail != false)
 119                 atf_tc_fail("raise(3) returned before signal handler");
 120 }
 121
 122 ATF_TC(raise_sig);
 123 ATF_TC_HEAD(raise_sig, tc)
 124 {
 125         atf_tc_set_md_var(tc, "descr", "A basic test of raise(3)");
 126 }
 127
 128 ATF_TC_BODY(raise_sig, tc)
 129 {
 130         struct timespec tv, tr;
 131         struct sigaction sa;
 132         size_t i;
 133
 134         for (i = 0; i < __arraycount(sig); i++) {
 135
 136                 (void)memset(&sa, 0, sizeof(struct sigaction));
 137
 138                 fail = true;
 139
 140                 tv.tv_sec = 0;
 141                 tv.tv_nsec = 2;
 142
 143                 sa.sa_flags = 0;
 144                 sa.sa_handler = handler_err;
 145
 146                 ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
 147                 ATF_REQUIRE(sigaction(sig[i], &sa, 0) == 0);
 148
 149                 ATF_REQUIRE(raise(sig[i]) == 0);
 150                 ATF_REQUIRE(nanosleep(&tv, &tr) == 0);
 151
 152                 if (fail != false)
 153                         atf_tc_fail("raise(3) did not raise a signal");
 154         }
 155 }
 156
 157 ATF_TC(raise_stress);
 158 ATF_TC_HEAD(raise_stress, tc)
 159 {
 160         atf_tc_set_md_var(tc, "descr", "A basic stress test with raise(3)");
 161 }
 162
 163 ATF_TC_BODY(raise_stress, tc)
 164 {
 165         static const int maxiter = 1000 * 10;
 166         struct sigaction sa;
 167         int i;
 168
 169         sa.sa_flags = 0;
 170         sa.sa_handler = handler_stress;
 171
 172         ATF_REQUIRE(sigemptyset(&sa.sa_mask) == 0);
 173         ATF_REQUIRE(sigaction(SIGUSR1, &sa, 0) == 0);
 174
 175         for (count = i = 0; i < maxiter; i++)
 176                 (void)raise(SIGUSR1);
 177
 178         if (count != maxiter)
 179                 atf_tc_fail("not all signals were catched");
 180 }
 181
 182 ATF_TP_ADD_TCS(tp)
 183 {
 184         ATF_TP_ADD_TC(tp, raise_err);
 185         ATF_TP_ADD_TC(tp, raise_ret);
 186         ATF_TP_ADD_TC(tp, raise_sig);
 187         ATF_TP_ADD_TC(tp, raise_stress);
 188
 189         return atf_no_error();
 190 }