/*   
 * Copyright (c) 2003, Intel Corporation. All rights reserved.
 * Created by:  salwan.searty 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.

 This program verifies that sigpause() returns -1 and sets errno to EINTR
 when it returns.

 Steps:
 1. From the main() function, create a new thread. Give the new thread a
    a second to set up for receiving a signal, and to suspend itself using
    sigpause().
 2. From the main() thread, send signal to new thread to make sigpause return.
 3. Verify that sigpause returns -1 and sets errno to EINTR.
 */

#define _XOPEN_SOURCE 600

#include <pthread.h>
#include <stdio.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include "posixtest.h"

#define SIGTOTEST SIGABRT
#define INTHREAD 0
#define INMAIN 1

int result = 2;
int sem = INMAIN;

void handler() {
	printf("signal was called\n");
	return;
}

void *a_thread_func()
{
	int return_value = 0;
	struct sigaction act;
	act.sa_flags = 0;
	act.sa_handler = handler;
	sigemptyset(&act.sa_mask);
	sigaction(SIGTOTEST, &act, 0);
	return_value = sigpause(SIGTOTEST);
	if (return_value == -1) {
		if (errno == EINTR) {
			printf ("Test PASSED: sigpause returned -1 and set errno to EINTR\n");
			result = 0;
		} else {
			printf ("Test FAILED: sigpause did not set errno to EINTR\n");
			result = 1;
		}
	} else {
		if (errno == EINTR) {
			printf ("Test FAILED: sigpause did not return -1\n");
		}
		printf ("Test FAILED: sigpause did not set errno to EINTR\n");
		printf ("Test FAILED: sigpause did not return -1\n");
		result = 1;

	}
	sem = INMAIN;
	return NULL;
}

int main()
{
	pthread_t new_th;

	if(pthread_create(&new_th, NULL, a_thread_func, NULL) != 0)
	{
		perror("Error creating thread\n");
		return PTS_UNRESOLVED;
	}

	sleep(1);

	if(pthread_kill(new_th, SIGTOTEST) != 0) 
	{
		printf("Test UNRESOLVED: Couldn't send signal to thread\n");
		return PTS_UNRESOLVED;
	}

	sem = INTHREAD;
	while (sem == INTHREAD)
		sleep(1);

	if(result == 2) {
		return PTS_UNRESOLVED;
	}
	if(result == 1) {
		return PTS_FAIL;
	}

	printf("Test PASSED\n");
	return PTS_PASS;	
}


