Linux下基於socket多線程併發通信的實現
分類： Linux2011-05-21 18:13 8455人閱讀 評論(5) 收藏 舉報socket多線程linuxserverstruct服務器[cpp] view plaincopy
/***************************************************
* 文件名：pthread_server.c
***************************************************/
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <stdlib.h>
#include <pthread.h>
void *rec_data(void *fd);
int main(int argc,char *argv[])
{
int server_sockfd;
int *client_sockfd;
int server_len, client_len;
struct sockaddr_in server_address;
struct sockaddr_in client_address;
struct sockaddr_in tempaddr;
int i,byte;
char char_recv,char_send;
socklen_t templen;
server_sockfd = socket(AF_INET, SOCK_STREAM, 0);//創建套接字
server_address.sin_family = AF_INET;
server_address.sin_addr.s_addr = htonl(INADDR_ANY);
server_address.sin_port = htons(9734);
server_len = sizeof(server_address);
bind(server_sockfd, (struct sockaddr *)&server_address, server_len);//綁定套接字
templen = sizeof(struct sockaddr);
printf("server waiting for connect/n");
while(1){
pthread_t thread;//創建不同的子線程以區別不同的客戶端
client_sockfd = (int *)malloc(sizeof(int));
client_len = sizeof(client_address);
*client_sockfd = accept(server_sockfd,(struct sockaddr *)&client_address, (socklen_t *)&client_len);
if(-1==*client_sockfd){
perror("accept");
continue;
}
if(pthread_create(&thread, NULL, rec_data, client_sockfd)!=0)//創建子線程
{
perror("pthread_create");
break;
}
}
shutdown(*client_sockfd,2);
shutdown(server_sockfd,2);
}
/*****************************************
* 函數名稱：rec_data
* 功能描述：接受客戶端的數據
* 參數列表：fd——連接套接字
* 返回結果：void
*****************************************/
void *rec_data(void *fd)
{
int client_sockfd;
int i,byte;
char char_recv[100];//存放數據
client_sockfd=*((int*)fd);
for(;;)
{
if((byte=recv(client_sockfd,char_recv,100,0))==-1)
{
perror("recv");
exit(EXIT_FAILURE);
}
if(strcmp(char_recv, "exit")==0)//接受到exit時，跳出循環
break;
printf("receive from client is %s/n",char_recv);//打印收到的數據
}
free(fd);
close(client_sockfd);
pthread_exit(NULL);
}
/***************************************************
* 文件名：pthread_client.c
***************************************************/
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <stdlib.h>
int main(int argc,char *argv[])
{
int sockfd;
int len;
struct sockaddr_in address;
int result;
int i,byte;
char char_send[100] = { 0 };
if((sockfd = socket(AF_INET, SOCK_STREAM, 0))==-1)
{
perror("socket");
exit(EXIT_FAILURE);
}
if(argc != 3){
printf("Usage: fileclient <address> <port>/n");//用法：文件名 服務器IP地址 服務器端口地址
return 0;
}
if((sockfd = socket(AF_INET,SOCK_STREAM,0)) == -1){
perror("sock");
exit(1);
}
bzero(&address,sizeof(address));
address.sin_family = AF_INET;
address.sin_port = htons(atoi(argv[2]));
inet_pton(AF_INET,argv[1],&address.sin_addr);
len = sizeof(address);
if((result = connect(sockfd, (struct sockaddr *)&address, len))==-1)
{
perror("connect");
exit(EXIT_FAILURE);
}
for(;;)
{
scanf("%s", char_send);//輸入發送數據
fflush(stdin);//清除輸入緩存
if(strcmp(char_send, "exit")==0){//如果輸入exit，跳出循環
if((byte=send(sockfd,char_send,100,0))==-1)
{
perror("send");
exit(EXIT_FAILURE);
}
break;
}
if((byte=send(sockfd,char_send,100,0))==-1)
{
perror("send");
exit(EXIT_FAILURE);
}
}
close(sockfd);
exit(0);
}
編譯服務器端程序 pthread_server.c ：
$gcc pthread_server.c –o server –lpthread
編譯客戶端程序 pthread_client.c:
$gcc pthread_client.c –o client
編譯在開發板上跑的客戶端程序：
$arm-linux-gcc client.c –o arm_client
先啓動服務器端的程序 server:
$./server
打開另一個終端，啓動客戶端的程序 client:
$./client 127.0.0.1 9734
把 arm_client 放到開發板上，啓動 arm_client:
$./arm_client 219.222.170.9 9734
結果 :
服務器端：
tongs@tong's-desktop:~/c_c++_program/sock_inet_comm2$ ./server
server waiting for connect
receive from client is client
receive from client is client
receive from client is arm_client
receive from client is arm_client
客戶端：
tongs@tong's-desktop:~/c_c++_program/sock_inet_comm2$ ./client 127.0.0.1 9734
client
client
exit
開發板服務器端
[/mnt/yaffs/nfs_share/sock_tcp/thread_socket]./arm_client 219.222.170.9 9734
arm_client
arm_client
exit