| /* |
| * 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_receive() test plan: |
| * Test that if the message queue is empty and O_NONBLOCK is not set, |
| * mq_receive() will block until a message is enqueued on the message queue |
| * or until mq_receive() is interrupted by a signal. |
| * |
| * NOTE: This 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(). |
| */ |
| |
| #include <stdio.h> |
| #include <mqueue.h> |
| #include <fcntl.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include "posixtest.h" |
| |
| #define TEST "5-1" |
| #define FUNCTION "mq_receive" |
| #define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": " |
| |
| #define NAMESIZE 50 |
| #define BUFFER 40 |
| |
| int main() |
| { |
| char mqname[NAMESIZE], msgrv[BUFFER]; |
| const char *msgptr = "test message "; |
| mqd_t mqdes; |
| int prio = 1; |
| int pid; |
| struct mq_attr attr; |
| int unresolved = 0, failure = 0; |
| |
| 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"); |
| unresolved = 1; |
| } |
| |
| if ((pid = fork()) != 0) { |
| /* Parent process */ |
| int status; |
| if (mq_receive(mqdes, msgrv, BUFFER, NULL) > 0) { |
| wait(&status); |
| if (status) { |
| printf("mq_send error \n"); |
| unresolved = 1; |
| } |
| } |
| else { |
| wait(NULL); /* wait for child to exit */ |
| perror(ERROR_PREFIX "mq_receive"); |
| failure = 1; |
| } |
| if (mq_close(mqdes) != 0) { |
| perror(ERROR_PREFIX "mq_close"); |
| unresolved = 1; |
| } |
| if (mq_unlink(mqname) != 0) { |
| perror(ERROR_PREFIX "mq_unlink"); |
| unresolved = 1; |
| } |
| if (failure==1) { |
| printf("Test FAILED\n"); |
| return PTS_FAIL; |
| } |
| if (unresolved==1) { |
| printf("Test UNRESOLVED\n"); |
| return PTS_UNRESOLVED; |
| } |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } |
| else { |
| /* Child Process */ |
| sleep(2); /* sleep 2 seconds, |
| assume that child will block on waiting then */ |
| if (mq_send(mqdes, msgptr, strlen(msgptr), prio) == -1) { |
| perror(ERROR_PREFIX "mq_send"); |
| return PTS_UNRESOLVED; |
| } |
| return 0; |
| } |
| return PTS_UNRESOLVED; |
| } |