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/*
* 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_timedreceive() test plan:
* Test that if the message queue is empty and O_NONBLOCK is not set,
* mq_timedreceive() will block until mq_timedreceive() 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.
*/
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <fcntl.h>
#include <mqueue.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "posixtest.h"
#define TEST "5-3"
#define FUNCTION "mq_timedreceive"
#define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": "
#define NAMESIZE 50
#define BUFFER 40
void stopreceive(int signo LTP_ATTRIBUTE_UNUSED)
{
return;
}
int main(void)
{
char mqname[NAMESIZE], msgrv[BUFFER];
mqd_t mqdes;
int pid;
struct mq_attr attr;
struct timespec ts;
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;
}
pid = fork();
if (pid != 0) {
/* Parent process */
struct sigaction act;
act.sa_handler = stopreceive;
act.sa_flags = 0;
sigemptyset(&act.sa_mask);
sigaction(SIGABRT, &act, 0);
ts.tv_sec = INT32_MAX;
ts.tv_nsec = 0;
if (mq_timedreceive(mqdes, msgrv, BUFFER, NULL, &ts) == -1) {
wait(NULL);
if (EINTR != errno) {
printf("errno != EINTR\n");
failure = 1;
}
} else {
wait(NULL);
printf("mq_timedreceive() succeed unexpectly\n");
failure = 1;
}
if (mq_close(mqdes) != 0) {
perror("mq_close() did not return success");
unresolved = 1;
}
if (mq_unlink(mqname) != 0) {
perror("mq_unlink() did not return success");
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(1); /* give time to parent to set up handler */
/* send signal to parent */
kill(getppid(), SIGABRT);
}
}
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