C语言post实现动态服务

C语言中post方法的实现涉及到网络编程和多线程编程。以下是一个简单的实现示例：

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

#define MAX_CLIENTS 10
#define MAX_MSG_LEN 1024

int clients[MAX_CLIENTS];
int client_count = 0;
pthread_mutex_t client_mutex;

void handle_request(int client_sock, char* message) {
    // 在此处实现post方法的具体逻辑
    // 可以参考以下代码模板：

    // 解析请求内容
    char* data = strstr(message, "\r\n\r\n");
    if (data == NULL) {
        fprintf(stderr, "Error: Invalid request.\n");
        return;
    }
    data += 4; // 跳过\r\n\r\n

    // 处理请求内容
    // ...

    // 发送响应
    char response[MAX_MSG_LEN];
    sprintf(response, "HTTP/1.1 200 OK\r\nContent-Length: %d\r\n\r\n%s", strlen(data), data);
    send(client_sock, response, strlen(response), 0);
}

void* handle_client(void* arg) {
    int client_sock = *(int*)arg;
    free(arg);

    printf("Client connected. (sock=%d)\n", client_sock);

    char message[MAX_MSG_LEN];
    while (recv(client_sock, message, MAX_MSG_LEN, 0) > 0) {
        printf("Message received. (sock=%d):\n%s\n", client_sock, message);

        handle_request(client_sock, message);
        memset(message, 0, MAX_MSG_LEN);
    }

    pthread_mutex_lock(&client_mutex);
    for (int i = 0; i < client_count; i++) {
        if (clients[i] == client_sock) {
            clients[i] = clients[client_count-1];
            client_count--;
            break;
        }
    }
    pthread_mutex_unlock(&client_mutex);

    printf("Client disconnected. (sock=%d)\n", client_sock);

    close(client_sock);
    pthread_exit(NULL);
}

int main() {
    // 创建套接字
    int server_sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

    // 绑定地址
    struct sockaddr_in server_addr;
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    server_addr.sin_port = htons(8080);
    bind(server_sock, (struct sockaddr*)&server_addr, sizeof(server_addr));

    // 监听连接请求
    listen(server_sock, MAX_CLIENTS);

    // 初始化客户端列表锁
    pthread_mutex_init(&client_mutex, NULL);

    printf("Server started. (port=%d)\n", ntohs(server_addr.sin_port));

    // 接收连接并启动处理线程
    while (1) {
        int* client_sock = malloc(sizeof(int));
        *client_sock = accept(server_sock, NULL, NULL);

        pthread_mutex_lock(&client_mutex);
        if (client_count < MAX_CLIENTS) {
            clients[client_count++] = *client_sock;
            pthread_t tid;
            pthread_create(&tid, NULL, handle_client, client_sock);
            pthread_detach(tid);
        } else {
            printf("Too many clients. Connection refused.\n");
            close(*client_sock);
            free(client_sock);
        }
        pthread_mutex_unlock(&client_mutex);
    }

    // 清理锁和套接字
    pthread_mutex_destroy(&client_mutex);
    close(server_sock);

    return 0;
}