pthread_cancel() trong C

pthread_cancel(thread_id) gửi yêu cầu hủy thread. Thread bị hủy tại cancellation point (như sleep, wait).

Cú pháp

int pthread_cancel(pthread_t th);

Ví dụ: Thread 1 hủy thread 2 sau 5 lần in

int count = 0;
pthread_t t2_id;

void* thread1(void* p) {
    while(1) {
        printf("Thread 1\n"); sleep(1);
        if (++count == 5) {
            pthread_cancel(t2_id);
            pthread_exit(NULL);
        }
    }
}

void* thread2(void* p) {
    t2_id = pthread_self();
    while(1) { printf("Thread 2\n"); sleep(2); }
}

main() {
    pthread_t t1, t2;
    pthread_create(&t1, NULL, thread1, NULL);
    pthread_create(&t2, NULL, thread2, NULL);
    pthread_join(t1, NULL); pthread_join(t2, NULL);
}