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

int var;
pthread_mutext_t mutex;

typedef struct s {
    int id;
} s;

void* t(void *inp) {
    s* inputs = (s*) inp;

    sleep(2);

    pthread_mutext_lock(&mutex);
    if (var == 0) {
        printf("Child %d didn't eat\n", inputs->id);
    else {
        printf("Child %d ate\n", inputs->id);
        var--;
    }
    pthread_mutext_unlock(&mutex);
    return NULL;
}

int main() {
	var = 1;
	printf("Total cookies: %d\n", var);

	pthread_t tid1;
	pthread_t tid2;

	s* thread1_input = (s*)malloc(sizeof(s));
	s* thread2_input = (s*)malloc(sizeof(s));
	thread1_input->id = 1;
	thread2_input->id = 2;

	pthread_mutext_init(&mutex, NULL);

	pthread_create(&tid1, NULL, t, (void*)(thread1_input));
	pthread_create(&tid2, NULL, t, (void*)(thread2_input));

    pthread_join(tid1, NULL);
    pthread_join(tid2, NULL);

    pthread_mutex_destroy(&mutex);
    printf("%d\n", var);
	return 0;
}