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

// pthread_cancel 示例
int isCancel = 0;

void *show(void *data)
{
    for (int i = 0; i < 100; i++)
    {
        printf("线程(%ld): i=%d\n", pthread_self(), i);
        sleep(1);
        if (isCancel)
        {
            printf("%ld 被取消\n", pthread_self());
            break;

            // pthread_cancel(pthread_self()); // 取消线程
        }
    }
    pthread_exit(NULL);
}

void *watch_task(void *data)
{
    while (1)
    {
        char n = getchar();
        if (n == '1')
        {
            isCancel = 1;
            break;
        }
    }
    return NULL;
}

int main(int argc, char const *argv[])
{
    pthread_t tid, tid2;
    pthread_create(&tid, NULL, show, NULL);
    pthread_create(&tid2, NULL, watch_task, NULL);

    pthread_join(tid, NULL);
    pthread_join(tid2, NULL);

    return 0;
}