| /* |
| * Copyright (c) 2003, Intel Corporation. All rights reserved. |
| * Created by: crystal.xiong REMOVE-THIS AT intel DOT com |
| * This file is licensed under the GPL license. For the full content |
| * of this license, see the COPYING file at the top level of this |
| * source tree. |
| */ |
| |
| /* |
| * mq_notify() test plan: |
| * If a process has registered for notification of message arrival |
| * at a message queue, while some thread is blocked in mq_receive |
| * waiting to receive a message, the arriving message should satisfy |
| * the appropriate mq_receive(). In this case, no notification will |
| * be sent. |
| * NOTE: The test makes some assumptions and has some potential race |
| * conditions, but seems the best way to test for now. |
| * |
| * 3/28/2003 Fix a bug mentioned by Michal Wronski, pass mq_attr struct |
| * to the mq_open(). |
| * |
| * 4/11/2003 change sa_flags from SA_RESTART to 0 to avoid compile |
| * error. |
| * |
| * 2/17/2004 call mq_close and mq_unlink before exit to release mq |
| * resources |
| */ |
| |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <fcntl.h> |
| #include <mqueue.h> |
| #include <stdio.h> |
| #include <signal.h> |
| #include <unistd.h> |
| #include "posixtest.h" |
| |
| #define TEST "5-1" |
| #define FUNCTION "mq_notify" |
| #define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": " |
| |
| #define NAMESIZE 50 |
| #define MSG_SIZE 40 |
| #define BUFFER 40 |
| |
| int enter_handler = 0; |
| |
| void msg_handler() |
| { |
| enter_handler = 1; |
| } |
| |
| void mqclean(mqd_t queue, const char *qname) |
| { |
| mq_close(queue); |
| mq_unlink(qname); |
| } |
| |
| int main() |
| { |
| char mqname[NAMESIZE]; |
| mqd_t mqdes; |
| const char s_msg_ptr[MSG_SIZE] = "test message \n"; |
| char r_msg_ptr[MSG_SIZE]; |
| struct sigevent notification; |
| struct sigaction sa; |
| unsigned int prio = 1; |
| int pid; |
| struct mq_attr attr; |
| |
| sprintf(mqname, "/" FUNCTION "_" TEST "_%d", getpid()); |
| attr.mq_msgsize = BUFFER; |
| attr.mq_maxmsg = BUFFER; |
| |
| mqdes = mq_open(mqname, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR, &attr); |
| if (mqdes == (mqd_t)-1) { |
| perror(ERROR_PREFIX "mq_open"); |
| mqclean(mqdes, mqname); |
| return PTS_UNRESOLVED; |
| } |
| |
| pid = fork(); |
| if (pid == -1) { |
| perror(ERROR_PREFIX "fork"); |
| mqclean(mqdes, mqname); |
| return PTS_UNRESOLVED; |
| } |
| if (pid == 0) { |
| /* child process */ |
| mq_receive(mqdes, r_msg_ptr, MSG_SIZE, NULL); |
| return 0; |
| } |
| else { |
| /* parent process */ |
| sleep(2); /* after 2 seconds, |
| assume that child with block on mq_receive. */ |
| notification.sigev_notify = SIGEV_SIGNAL; |
| notification.sigev_signo = SIGUSR1; |
| sa.sa_handler = msg_handler; |
| sa.sa_flags = 0; |
| sigaction(SIGUSR1, &sa, NULL); |
| if (mq_notify(mqdes, ¬ification) != 0) { |
| perror(ERROR_PREFIX "mq_notify"); |
| return PTS_UNRESOLVED; |
| } |
| if (mq_send(mqdes, s_msg_ptr, MSG_SIZE, prio) == -1) { |
| perror(ERROR_PREFIX "mq_send"); |
| return PTS_UNRESOLVED; |
| } |
| sleep(1); |
| if (mq_unlink(mqname) != 0) { |
| perror(ERROR_PREFIX "mq_unlink"); |
| return PTS_UNRESOLVED; |
| } |
| if (enter_handler) { |
| printf("Test FAILED \n"); |
| return PTS_FAIL; |
| } |
| printf("Test PASSED \n"); |
| mqclean(mqdes, mqname); |
| return PTS_PASS; |
| } |
| } |