实现多进程多线程服务器

来源：互联网发布：网络集成专业方向编辑：程序博客网时间：2024/06/05 06:54

多进程：

客户端：

#include<stdio.h>

#include<stdlib.h>
#include<string.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netinet/in.h>
static int startup(const char *_ip,int _port)
{
int sock=socket(AF_INET,SOCK_STREAM,0);
if(sock<0)
{
perror("socket");
return 3;
}
struct sockaddr_in local;
local.sin_family=AF_INET;
local.sin_port=htons(_port);
local.sin_addr.s_addr=inet_addr(_ip);
if(bind(sock,(struct sockaddr*)&local,sizeof(local))<0)
{
perror("bind");
return 4;
}
if(listen(sock,10)<0)
{
perror("listen");
return 5;
}
}
static void usage(const char *proc)
{
printf("usage:[local_ip] [local_port]",proc);
}
int main(int argc,char *argv[])
{
if(argc!=3)
{
usage(argv[0]);
printf("usage");
return 1;
}
int listen_sock=startup(argv[1],atoi(argv[2]));
struct sockaddr_in peer;
socklen_t len=sizeof(peer);
while(1)
{
int new_sock=accept(listen_sock,(struct sockaddr*)&peer,&len);
if(new_sock>0)
{
pid_t id=fork();
if(id==0)
{
//child
close(listen_sock);
char buf[1024];
while(1)
{
ssize_t s=read(new_sock,buf,sizeof(buf)-1);
if(s>0)
{
buf[s]=0;
printf("client say#%s\n",buf);
write(new_sock,buf,strlen(buf));
}
else if(s==0)
{
printf("client quick\n");
}
else
{
break;
}
}
close(new_sock);
exit(1);
}
else
{
//father
close(new_sock);
if(fork()>0)
{
exit(0);
}
}
}
else
{
perror("new_sock");
return 2;
}
}
return 0;
}

服务器端：
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netinet/in.h>
static void usage(const char *proc)
{
printf("usage:[server_ip] [server_port]",proc);
}
int main(int argc,char *argv[])
{
int sock=socket(AF_INET,SOCK_STREAM,0);
if(sock<0)
{
perror("socket");
return 1;
}
struct sockaddr_in server;
server.sin_family=AF_INET;
server.sin_port=htons(atoi(argv[2]));
server.sin_addr.s_addr=inet_addr(argv[1]);

if(connect(sock,(struct sockaddr*)&server,sizeof(server))<0)
{
perror("connect");
return 2;
}
char buf[1024];
while(1)
{
printf("please enter:");
fflush(stdout);
ssize_t s=read(0,buf,sizeof(buf)-1);
if(s>0)
{
buf[s-1]=0;
write(sock,buf,strlen(buf));
ssize_t _s=read(sock,buf,sizeof(buf)-1);
if(_s>0)
{
buf[_s]=0;
printf("server echo:%s\n",buf);
}
}
}
close(sock);
return 0;
}

多线程：
/*************************************************************************
> File Name: pthread_server.c
> Author: ma6174
> Mail: ma6174@163.com
> Created Time: Thu 01 Jun 2017 01:11:13 PM CST
************************************************************************/

#include<stdio.h>
#include<pthread.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<arpa/inet.h>
#include<netinet/in.h>
#include<stdlib.h>
#include<string.h>
static void *Usage(const char * proc)
{
printf("Usage:%s [server_ip] [server_port]\n",proc);
}
int startup(char *_ip,int _port)
{
int sock=socket(AF_INET,SOCK_STREAM,0);
if(sock<0)
{
perror("socket");
exit(2);
}

int flag=1;
setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,&flag,sizeof(flag));

struct sockaddr_in local;
local.sin_family=AF_INET;
local.sin_port=htons(_port);
local.sin_addr.s_addr=inet_addr(_ip);
if(bind(sock,(struct sockaddr*)&local,sizeof(local))<0){
perror("bind");
exit(3);
}
if(listen(sock,10)<0) //she zhe taojiezi zhuangtai
{
perror("listen");
exit(4);
}
return sock;
}
void * handlerRequest(void *arg)
{
char buf[1024];
int sock=(int)arg;
while(1)
{
ssize_t s=read(sock,buf,sizeof(buf)-1);//bug!!
if(s>0)
{
buf[s]=0;
printf("%s\n",buf);

const char *msg="HTTP/1.0 200 OK\r\n\r\n<html><h1>hello world</h1></html>\r\n";
write(sock,msg,strlen(msg));
break;
}
else if(s==0)
{
printf("client is quit\n");
break;
}
else{
perror("read");
break;
}
}
close(sock);
}
int main(int argc,char *argv[])
{
if(argc!=3)
{
Usage(argv[0]);
return 1;
}
int listen_sock=startup(argv[1],atoi(argv[2]));
struct sockaddr_in peer;
while(1)
{
socklen_t len=sizeof(peer);
int new_sock=accept(listen_sock,(struct sockaddr*)&peer,&len);
if(new_sock<0){
perror("accept");
continue;
}
printf("get a new client,ip:port->%s:%d\n",\
inet_ntoa(peer.sin_addr),ntohs(peer.sin_port));
pthread_t id;
pthread_create(&id,NULL,handlerRequest,(void*)new_sock);
pthread_detach(id);

}
return 0;
}

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