linux多线程在网络编程中的应用

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <sys/socket.h>

#define PORT 8080
#define BUFFER_SIZE 1024

void *handle_client(void *arg) {
    int client_fd = *((int *)arg);
    char buffer[BUFFER_SIZE];
    while (1) {
        int len = read(client_fd, buffer, BUFFER_SIZE);
        if (len <= 0) {
            close(client_fd);
            break;
        }
        write(client_fd, buffer, len);
    }
    return NULL;
}

int main() {
    int server_fd, client_fd;
    struct sockaddr_in server_addr, client_addr;
    socklen_t client_addr_len = sizeof(client_addr);
    pthread_t threads[10];
    int thread_id;

    server_fd = socket(AF_INET, SOCK_STREAM, 0);
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = INADDR_ANY;
    server_addr.sin_port = htons(PORT);

    bind(server_fd, (struct sockaddr *)&server_addr, sizeof(server_addr));
    listen(server_fd, 3);

    while (1) {
        client_fd = accept(server_fd, (struct sockaddr *)&client_addr, &client_addr_len);
        pthread_create(&threads[thread_id], NULL, handle_client, &client_fd);
        thread_id++;
    }

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

    close(server_fd);
    return 0;
}