#include <stdio.h>

#include <pthread.h>

pthread_mutex_t mute;

int value = 0;

#define NUM_MAX 100*10000

void *productor(void *arg){

while(value < NUM_MAX) {

pthread_mutex_lock(&mute);

++value;

//printf("productor value=%d\n", value);

pthread_mutex_unlock(&mute);

}

}

void *customer(void *arg){

int i = 0;

while(i < NUM_MAX) {

pthread_mutex_lock(&mute);

i = value;

//printf("customer i=%d\n", i);

pthread_mutex_unlock(&mute);

}

}

int main(){

pthread_t th_productor, th_customer;

int id_productor = 1;

int id_customer = 2;

pthread_mutex_init(&mute, NULL);

pthread_create(&th_productor, NULL, productor, (void *)&id_productor);

pthread_create(&th_customer, NULL, customer, (void *)&id_customer);

pthread_join(th_productor, NULL);

pthread_join(th_customer, NULL);

pthread_mutex_destroy(&mute);

return 0;

}