1 /* $OpenBSD: t_getpid.c,v 1.1.1.1 2019/11/19 19:57:03 bluhm Exp $ */ 2 /* $NetBSD: t_getpid.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */ 3 4 /*- 5 * Copyright (c) 2011 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jukka Ruohonen. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "macros.h" 34 35 #include <sys/cdefs.h> 36 __RCSID("$NetBSD: t_getpid.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $"); 37 38 #include <sys/wait.h> 39 40 #include <stdlib.h> 41 #include <pthread.h> 42 #include <unistd.h> 43 44 #include "atf-c.h" 45 46 static int maxiter = 10; 47 static void *threadfunc(void *); 48 49 static void * 50 threadfunc(void *arg) 51 { 52 *(pid_t *)arg = getpid(); 53 54 return NULL; 55 } 56 57 ATF_TC(getpid_process); 58 ATF_TC_HEAD(getpid_process, tc) 59 { 60 atf_tc_set_md_var(tc, "descr", "Test getpid(2) with processes"); 61 } 62 63 ATF_TC_BODY(getpid_process, tc) 64 { 65 pid_t ppid, fpid, cpid, tpid, wpid; 66 int i, sta; 67 68 for (i = 0; i < maxiter; i++) { 69 70 tpid = getpid(); 71 fpid = fork(); 72 73 ATF_REQUIRE(fpid >= 0); 74 75 if (fpid == 0) { 76 77 cpid = getpid(); 78 ppid = getppid(); 79 80 if (tpid != ppid) 81 _exit(EXIT_FAILURE); 82 83 if (cpid == ppid) 84 _exit(EXIT_FAILURE); 85 86 if (tpid == fpid) 87 _exit(EXIT_FAILURE); 88 89 _exit(EXIT_SUCCESS); 90 } 91 92 wpid = wait(&sta); 93 94 if (wpid != fpid) 95 atf_tc_fail("PID mismatch"); 96 97 ATF_REQUIRE(WIFEXITED(sta) != 0); 98 99 if (WEXITSTATUS(sta) != EXIT_SUCCESS) 100 atf_tc_fail("PID mismatch"); 101 } 102 } 103 104 ATF_TC(getpid_thread); 105 ATF_TC_HEAD(getpid_thread, tc) 106 { 107 atf_tc_set_md_var(tc, "descr", "Test getpid(2) with threads"); 108 } 109 110 ATF_TC_BODY(getpid_thread, tc) 111 { 112 pid_t pid, tpid; 113 pthread_t tid; 114 int i, rv; 115 116 for (i = 0; i < maxiter; i++) { 117 118 pid = getpid(); 119 120 rv = pthread_create(&tid, NULL, threadfunc, &tpid); 121 ATF_REQUIRE(rv == 0); 122 123 rv = pthread_join(tid, NULL); 124 ATF_REQUIRE(rv == 0); 125 126 if (pid != tpid) 127 atf_tc_fail("Unequal PIDs"); 128 } 129 } 130 131 ATF_TP_ADD_TCS(tp) 132 { 133 134 ATF_TP_ADD_TC(tp, getpid_process); 135 ATF_TP_ADD_TC(tp, getpid_thread); 136 137 return atf_no_error(); 138 } 139