// CS 450; Thread example 1: pthread_create, pthread_join
// version 2014-01-25 3:43 PM
//
#include <pthread.h>
#include <stdio.h>

void *task(void *arg);  // prototype

int main(void) {
	pthread_t thd;		// thread
	int retcode;		// 0 if thread creation succeeded

	// Create thread and have it run task
	//
	retcode = pthread_create(&thd, NULL, task, NULL);
	printf("Thread creation returned code = %d\n", retcode);

	// Wait for thread to finish
	//
	if (retcode == 0) {
		pthread_join(thd, NULL);	// Wait for thread to complete
	}
}

//  Task run by thread; this one just prints a message.
//
void *task(void *arg) {
	printf("Thread called\n");
	return NULL;
}

/* Output:

Thread creation returned code = 0
Thread called

*/