blob: d3c886913b4aef84da965f82cf0a9dda812c0cfc [file] [log] [blame]
/*
* 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;
}