/* $FreeBSD$ */ #include <pthread.h> #include <stdio.h> #include <unistd.h> int __thread i; void * foo1(void *arg) { printf("thread %p, &i = %p\n", pthread_self(), &i); for (i = 0; i < 10; i++) { printf("thread %p, i = %d\n", pthread_self(), i); sleep(1); } return (NULL); } void * foo2(void *arg) { printf("thread %p, &i = %p\n", pthread_self(), &i); for (i = 10; i > 0; i--) { printf("thread %p, i = %d\n", pthread_self(), i); sleep(1); } return (NULL); } int main(int argc, char** argv) { pthread_t t1, t2; pthread_create(&t1, 0, foo1, 0); pthread_create(&t2, 0, foo2, 0); pthread_join(t1, 0); pthread_join(t2, 0); return (0); } |