#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
int Global;
__thread int huge[1024*1024];
void *Thread1(void *x) {
sleep(1);
Global++;
return NULL;
}
void *Thread2(void *x) {
pthread_mutex_t mtx;
pthread_mutex_init(&mtx, 0);
pthread_mutex_lock(&mtx);
Global--;
pthread_mutex_unlock(&mtx);
pthread_mutex_destroy(&mtx);
return NULL;
}
int main() {
pthread_t t[2];
pthread_create(&t[0], NULL, Thread1, NULL);
pthread_create(&t[1], NULL, Thread2, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
}