linuxc语言线程传参数

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

// 线程函数原型
void* thread_function(void* arg);

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

    for (int i = 0; i < 5; ++i) {
        // 创建线程并传递参数
        pthread_create(&threads[i], NULL, thread_function, &thread_args[i]);
    }

    for (int i = 0; i < 5; ++i) {
        // 等待线程结束
        pthread_join(threads[i], NULL);
    }

    return 0;
}

// 线程函数
void* thread_function(void* arg) {
    int* num = (int*)arg;
    printf("Thread %d is running.\n", *num);
    pthread_exit(NULL);
}

#include <pthread.h>

pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;

void* thread_function(void* arg) {
    int* num = (int*)arg;
    pthread_mutex_lock(&mutex);
    // 安全地访问和修改共享数据
    pthread_mutex_unlock(&mutex);
    pthread_exit(NULL);
}

void* thread_function(void* arg) {
    int* num = (int*)malloc(sizeof(int));
    if (num == NULL) {
        perror("Failed to allocate memory");
        pthread_exit(NULL);
    }
    // 使用num
    free(num); // 释放内存
    pthread_exit(NULL);
}