/*
 * 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:
 * mq_receive() will fail with EINTR if mq_receive() is interrupted by a signal.
 *
 */

#include <stdio.h>
#include <errno.h>
#include <limits.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 "13-1"
#define FUNCTION "mq_receive"
#define ERROR_PREFIX "unexpected error: " FUNCTION " " TEST ": "

#define NAMESIZE 50
#define BUFFER 40

void stopreceive(int signo)
{
	return;
}
int main()
{
        char mqname[NAMESIZE], msgrv[BUFFER];
        mqd_t mqdes;
	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 */
		struct sigaction act;
		act.sa_handler = stopreceive;
		act.sa_flags = 0;
		sigemptyset(&act.sa_mask);
		sigaction(SIGABRT, &act, 0);

        	if (mq_receive(mqdes, msgrv, BUFFER, NULL) == -1) {
			wait(NULL);
			if (EINTR != errno) {
				printf("errno != EINVAL \n");
				failure = 1;
			}
		}
		else {
			wait(NULL);
			printf("mq_receive() 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(2); /* give time to parent to set up handler */
		/* send signal to parent */
		kill(getppid(), SIGABRT);
	}
	return PTS_UNRESOLVED;
}