Linux下基于socket多線程并發(fā)通信的實(shí)現(xiàn)

2020-05-27 13:13:54

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分類： Linux2011-05-21 18:13 8455人閱讀評(píng)論(5) 收藏舉報(bào)socket多線程linuxserverstruct服務(wù)器[cpp] view plaincopy /*************************************************** * 文件名：pthread_server.c * 文件描述：創(chuàng)建子線程來接收客戶端的數(shù)據(jù) ***************************************************/ #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(chuàng)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(chuàng)建不同的子線程以區(qū)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(chuàng)建子線程 { perror("pthread_create"); break; } } shutdown(*client_sockfd,2); shutdown(server_sockfd,2); } /***************************************** * 函數(shù)名稱：rec_data * 功能描述：接受客戶端的數(shù)據(jù) * 參數(shù)列表：fd——連接套接字 * 返回結(jié)果：void *****************************************/ void *rec_data(void *fd) { int client_sockfd; int i,byte; char char_recv[100];//存放數(shù)據(jù) 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(shí)，跳出循環(huán) break; printf("receive from client is %s/n",char_recv);//打印收到的數(shù)據(jù) } free(fd); close(client_sockfd); pthread_exit(NULL); } /*************************************************** * 文件名：pthread_client.c * 文件描述：創(chuàng)建子線程來接收客戶端的數(shù)據(jù) ***************************************************/ #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(wù)器IP地址服務(wù)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(fā)送數(shù)據(jù) fflush(stdin);//清除輸入緩存 if(strcmp(char_send, "exit")==0){//如果輸入exit，跳出循環(huán) 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(wù)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(fā)板上跑的客戶端程序：

$arm-linux-gcc client.c –o arm_client

先啟動(dòng)服務(wù)器端的程序 server:

$./server

打開另一個(gè)終端，啟動(dòng)客戶端的程序 client:

$./client 127.0.0.1 9734

把 arm_client 放到開發(fā)板上，啟動(dòng) arm_client:

$./arm_client 219.222.170.9 9734