并发服务器的设计

标签：linux编程   linux多线程   linux c   linux网络编程   多线程程序设计   

/* tcp_server.c */

#include <stdio.h>
#include <sys/socket.h>
#include <string.h>
#include <netinet/in.h>

#define portnum 3333

int main()
{
	int sockfd,newfd;
	struct sockaddr_in server_addr;
	struct sockaddr_in client_addr;
	char buffer[128];
	int nbyte;
	int sin_size;
	int pid;
	
	//创建socket
	if((sockfd=socket(AF_INET,SOCK_STREAM,0))==-1)
	{
		printf("create socket error\n");
		exit(1);
	}
	
	//设置要绑定的地址
	bzero(&server_addr,sizeof(struct sockaddr_in));
	server_addr.sin_family = AF_INET;
	server_addr.sin_port = htons(portnum);
	server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
	
	//绑定地址
	bind(sockfd,(struct sockaddr*)&server_addr,sizeof(struct sockaddr));
	
	//监听端口
	listen(sockfd,5);
	
	while(1)
	{
		//等待连接
		sin_size = sizeof(struct sockaddr);
		newfd = accept(sockfd,(struct sockaddr*)&client_addr,&sin_size);
		printf("server get connection from %s\n",inet_ntoa(client_addr.sin_addr));
	
		if(pid=fork()==0)
		{
			//接收数据
			nbyte = recv(newfd,buffer,128,0);
			buffer[nbyte] = '\0';
			printf("server received :%s",buffer);
		
			close(newfd);
			close(sockfd);
			exit(0);
		}
		else if(pid<0)
		{
			printf("fork error!\n");
		}
		
		//结束连接
		close(newfd);
	}
	close(sockfd);
	
	return 0;
}

并发服务器的设计

标签：linux编程   linux多线程   linux c   linux网络编程   多线程程序设计   

原文地址：http://blog.csdn.net/zhuwenfeng215/article/details/45586959