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

pthread_mutex_t our_mutex;
void* take_a_while(void *param){
	pthread_mutex_lock(&our_mutex);
	for(int i = 0; i < 100; i++){
		printf("squash");
		printf("\n");
		if(i == 50){
			printf("Oh no!  This is bad!\n");
			return 0;
		}
	}
	pthread_mutex_unlock(&our_mutex);
	/*
		printf("take_a_while is starting\n");
		sleep(5);
		printf("take_a_while is ending\n");
		*/
	return 0;
}

int main(){

	pthread_t thread_one;
	pthread_create(&thread_one, 0, take_a_while, 0);

	for(int i = 0; i < 100; i++){
		pthread_mutex_lock(&our_mutex);
		printf("helicopter");
		printf("\n");
		pthread_mutex_unlock(&our_mutex);
	}
	pthread_join(thread_one, 0);
	return 0;
}