多线程客户端 linux

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

void* thread_function(void* arg) {
    int thread_id = *(int*)arg;
    printf("Thread %d is running
", thread_id);
    sleep(1); // 模拟耗时操作
    printf("Thread %d is exiting
", thread_id);
    return NULL;
}

int main() {
    int num_threads = 5;
    pthread_t threads[num_threads];
    int thread_ids[num_threads];

    for (int i = 0; i < num_threads; i++) {
        thread_ids[i] = i;
        if (pthread_create(&threads[i], NULL, thread_function, &thread_ids[i]) != 0) {
            perror("pthread_create");
            exit(EXIT_FAILURE);
        }
    }

    for (int i = 0; i < num_threads; i++) {
        pthread_join(threads[i], NULL);
    }

    printf("All threads have finished
");
    return 0;
}

gcc -pthread -o multithread_client multithread_client.c
./multithread_client