1 /* $NetBSD: t_getpid.c,v 1.1 2011/07/07 06:57:53 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_getpid.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $"); 33 34 #include <sys/wait.h> 35 36 #include <stdlib.h> 37 #include <pthread.h> 38 #include <unistd.h> 39 40 #include <atf-c.h> 41 42 static int maxiter = 10; 43 static void *threadfunc(void *); 44 45 static void * 46 threadfunc(void *arg) 47 { 48 *(pid_t *)arg = getpid(); 49 50 return NULL; 51 } 52 53 ATF_TC(getpid_process); 54 ATF_TC_HEAD(getpid_process, tc) 55 { 56 atf_tc_set_md_var(tc, "descr", "Test getpid(2) with processes"); 57 } 58 59 ATF_TC_BODY(getpid_process, tc) 60 { 61 pid_t ppid, fpid, cpid, tpid, wpid; 62 int i, sta; 63 64 for (i = 0; i < maxiter; i++) { 65 66 tpid = getpid(); 67 fpid = fork(); 68 69 ATF_REQUIRE(fpid >= 0); 70 71 if (fpid == 0) { 72 73 cpid = getpid(); 74 ppid = getppid(); 75 76 if (tpid != ppid) 77 _exit(EXIT_FAILURE); 78 79 if (cpid == ppid) 80 _exit(EXIT_FAILURE); 81 82 if (tpid == fpid) 83 _exit(EXIT_FAILURE); 84 85 _exit(EXIT_SUCCESS); 86 } 87 88 wpid = wait(&sta); 89 90 if (wpid != fpid) 91 atf_tc_fail("PID mismatch"); 92 93 ATF_REQUIRE(WIFEXITED(sta) != 0); 94 95 if (WEXITSTATUS(sta) != EXIT_SUCCESS) 96 atf_tc_fail("PID mismatch"); 97 } 98 } 99 100 ATF_TC(getpid_thread); 101 ATF_TC_HEAD(getpid_thread, tc) 102 { 103 atf_tc_set_md_var(tc, "descr", "Test getpid(2) with threads"); 104 } 105 106 ATF_TC_BODY(getpid_thread, tc) 107 { 108 pid_t pid, tpid; 109 pthread_t tid; 110 int i, rv; 111 112 for (i = 0; i < maxiter; i++) { 113 114 pid = getpid(); 115 116 rv = pthread_create(&tid, NULL, threadfunc, &tpid); 117 ATF_REQUIRE(rv == 0); 118 119 rv = pthread_join(tid, NULL); 120 ATF_REQUIRE(rv == 0); 121 122 if (pid != tpid) 123 atf_tc_fail("Unequal PIDs"); 124 } 125 } 126 127 ATF_TP_ADD_TCS(tp) 128 { 129 130 ATF_TP_ADD_TC(tp, getpid_process); 131 ATF_TP_ADD_TC(tp, getpid_thread); 132 133 return atf_no_error(); 134 } 135