TCP并发server模型（三）

本篇博客讲述的是单client单线程模型，该模型相同由主进程统一accept，仅仅是将fork改为了pthread_create。

与进程相比，线程有非常多长处（速度快，占用资源少。数据能够共享）。

该模型结构如图所看到的：

与上一篇博客讲述的模型非常相似，源码同上一篇相比仅仅有少量更改而已，亦不解说。

服务器端代码例如以下：

/*
author:arvik
purpose:test the server simultaneity
email:1216601195@qq.com
csdn: http://blog.csdn.net/u012819339
*/

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <time.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <arpa/inet.h>
#include <pthread.h>

#define BUFFLEN 1024
#define SERVER_PORT 8887
#define BACKLOG 3

static void handle_request(void *argv)
{
    int s_c = *((int *)argv);
    char buff[BUFFLEN];
    int n = 0;

    memset(buff, 0, sizeof(buff));
    n = recv(s_c, buff, BUFFLEN, 0);

    if(n>0)
    {
        printf("receive msg from client: %s\n", buff);
    }

    close(s_c);
}

static int handle_connect(int s_s)
{
    int s_c;
    struct sockaddr_in from;
    socklen_t len = sizeof(from);
    pthread_t thread_do;

    while(1)
    {
        s_c = accept(s_s, (struct sockaddr*)&from, &len); //block
        if(s_c>0)
        {
            pthread_create(&thread_do, NULL, (void*)handle_request, &s_c);
        }
    }
}

int main()
{
    int s_s;
    struct sockaddr_in local;

    s_s = socket(AF_INET, SOCK_STREAM, 0);

    memset(&local, 0, sizeof(local));
    local.sin_family = AF_INET;
    local.sin_addr.s_addr = inet_addr("127.0.0.1");//htonl(INADDR_ANY);
    local.sin_port = htons(SERVER_PORT);

    if(bind(s_s, (struct sockaddr*)&local, sizeof(local)))
    {
        printf("bind socket failed!\n");
        return -1;
    }

    listen(s_s, BACKLOG);

    handle_connect(s_s);

    close(s_s);

    return 0;
}

client代码不变。

见上一篇博客！