1个主线程子线程linux

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

void* thread_function(void* arg) {
    int id = *(int*)arg;
    printf("Thread %d is running\n", id);
    return NULL;
}

int main() {
    pthread_t threads[5];
    int thread_ids[5] = {1, 2, 3, 4, 5};

    for (int i = 0; i < 5; ++i) {
        if (pthread_create(&threads[i], NULL, thread_function, &thread_ids[i]) != 0) {
            perror("Failed to create thread");
            exit(EXIT_FAILURE);
        }
    }

    for (int i = 0; i < 5; ++i) {
        pthread_join(threads[i], NULL);
    }

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

gcc -o multi_thread_example multi_thread_example.c -lpthread
./multi_thread_example

#include <pthread.h>

pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;

void* thread_function(void* arg) {
    pthread_mutex_lock(&mutex);
    // 访问和修改共享数据
    pthread_mutex_unlock(&mutex);
    return NULL;
}