/*   
 * Copyright (c) 2002, Intel Corporation. All rights reserved.
 * Created by:  rolla.n.selbak 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.

 * Test that pthread_join()
 *  
 * shall suspend the execution of the calling thread until the target
 * 'thread' terminates, unless 'thread' has already terminated. 
 * 
 * Steps:
 * 1.  Create a new thread.  Have it sleep for 3 seconds.
 * 2.  The main() thread should wait for the new thread to finish execution before exiting out.
 * 
 */

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

int end_exec;	/* Global flag indicating the the thread function has finished execution. */

/* Thread's function. */
void *a_thread_func()
{
	int i;
	
	printf("Wait for 3 seconds for thread to finish execution:\n");
	for(i=1;i<4;i++)
	{
		printf("Waited (%d) second\n", i);
		sleep(1);
	}

	/* Indicate that the thread has ended execution. */
	end_exec=1;
	
	pthread_exit(0);
	return NULL;
}

int main()
{
	pthread_t new_th;

	/* Initialize flag */
	end_exec = 0;
	
	/* Create a new thread. */
	if(pthread_create(&new_th, NULL, a_thread_func, NULL) != 0)
	{	
		perror("Error creating thread\n");
		return PTS_UNRESOLVED;
	}

	/* Wait for thread to return */
	if(pthread_join(new_th, NULL) != 0)
	{
		perror("Error in pthread_join()\n");
		return PTS_UNRESOLVED;
	}

	if(end_exec == 0)
	{
		printf("Test FAILED: When using pthread_join(), main() did not wait for thread to finish execution before continuing.\n");
		return PTS_FAIL;
	}	

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