1 /* 2 * Copyright (c) 2003, Intel Corporation. All rights reserved. 3 * Created by: julie.n.fleischer REMOVE-THIS AT intel DOT com 4 * This file is licensed under the GPL license. For the full content 5 * of this license, see the COPYING file at the top level of this 6 * source tree. 7 */ 8 9 /* 10 * Test that if the first letter of name is "/", any other processes 11 * calling the message queue with that name will refer to the same 12 * message queue object. 13 * 14 * Test by creating a message queue and placing a message within it. Then, 15 * in another process open the first message queue and ensure the message 16 * can be received. 17 * 18 * 3/13/03 - Added fix from Gregoire Pichon for specifying an attr 19 * with a mq_maxmsg >= BUFFER. 20 */ 21 22 #include <sys/stat.h> 23 #include <sys/types.h> 24 #include <sys/wait.h> 25 #include <fcntl.h> 26 #include <mqueue.h> 27 #include <signal.h> 28 #include <stdio.h> 29 #include <string.h> 30 #include <unistd.h> 31 #include "posixtest.h" 32 33 #define NAMESIZE 50 34 #define MSGSTR "0123456789" 35 #define BUFFER 40 36 37 #define CHILDPASS 1 38 #define CHILDFAIL 0 39 40 void handler(int signo) 41 { 42 (void) signo; 43 return; 44 } 45 46 int main(void) 47 { 48 char qname[NAMESIZE]; 49 const char *msgptr = MSGSTR; 50 int pid, ret; 51 52 sprintf(qname, "/mq_open_2-1_%d", getpid()); 53 54 pid = fork(); 55 if (pid == 0) { 56 mqd_t childqueue; 57 char msgrcd[BUFFER]; 58 sigset_t mask; 59 struct mq_attr attr; 60 struct sigaction act; 61 int sig; 62 unsigned pri; 63 64 /* child here */ 65 66 /* Set up handler for SIGUSR1 */ 67 act.sa_handler = handler; 68 act.sa_flags = 0; 69 sigaction(SIGUSR1, &act, NULL); 70 71 /* wait for parent to finish mq_open */ 72 sigemptyset(&mask); 73 sigaddset(&mask, SIGUSR1); 74 sigprocmask(SIG_BLOCK, &mask, NULL); 75 sigwait(&mask, &sig); 76 77 /* now that parent has finished, open qname */ 78 attr.mq_msgsize = BUFFER; 79 attr.mq_maxmsg = BUFFER; 80 childqueue = mq_open(qname, O_RDWR, S_IRUSR | S_IWUSR, &attr); 81 if (childqueue == (mqd_t) - 1) { 82 perror("mq_open() did not return success in child"); 83 return CHILDFAIL; 84 } 85 86 ret = mq_receive(childqueue, msgrcd, BUFFER, &pri); 87 if (ret == -1) { 88 perror("mq_receive() returned failure in child"); 89 return CHILDFAIL; 90 } 91 92 if (strcmp(msgptr, msgrcd) != 0) { 93 printf("FAIL: sent %s received %s\n", msgptr, msgrcd); 94 return CHILDFAIL; 95 } 96 #ifdef DEBUG 97 printf("Received message %s\n", msgrcd); 98 #endif 99 return CHILDPASS; 100 } else { 101 /* parent here */ 102 mqd_t queue; 103 int i; 104 struct mq_attr attr; 105 106 attr.mq_msgsize = BUFFER; 107 attr.mq_maxmsg = BUFFER; 108 queue = mq_open(qname, O_CREAT | O_RDWR, 109 S_IRUSR | S_IWUSR, &attr); 110 if (queue == (mqd_t) - 1) { 111 perror("mq_open() did not return success"); 112 printf("Test UNRESOLVED\n"); 113 /* stop child and exit */ 114 kill(pid, SIGABRT); 115 return PTS_UNRESOLVED; 116 } 117 118 if (mq_send(queue, msgptr, strlen(msgptr) + 1, 1) != 0) { 119 perror("mq_send() did not return success"); 120 printf("Test UNRESOLVED\n"); 121 /* close queue, stop child and exit */ 122 mq_close(queue); 123 mq_unlink(qname); 124 kill(pid, SIGABRT); 125 return PTS_UNRESOLVED; 126 } 127 128 sleep(1); 129 kill(pid, SIGUSR1); 130 131 if (wait(&i) == -1) { 132 perror("Error waiting for child to exit"); 133 /* close queue and exit */ 134 printf("Test UNRESOLVED\n"); 135 mq_close(queue); 136 mq_unlink(qname); 137 return PTS_UNRESOLVED; 138 } 139 140 mq_close(queue); 141 mq_unlink(qname); 142 143 if (!WIFEXITED(i) || !WEXITSTATUS(i)) { 144 printf("Test FAILED\n"); 145 return PTS_FAIL; 146 } 147 148 printf("Test PASSED\n"); 149 return PTS_PASS; 150 } 151 152 return PTS_UNRESOLVED; 153 } 154
