Socket interface multi-threaded data transfer

Source: Internet
Author: User
Tags htons

Socket interface multi-threaded data transfer

Service-side code

Myserver.c

#include <sys/socket.h>#include<sys/types.h>#include<signal.h>#include<string.h>#include<netinet/inch.h>#include<unistd.h>#include<stdlib.h>#include<stdio.h>#include<arpa/inet.h>#definePort_num 5555#defineMax_client 100typedefstruct {            intindex; int    using;//using or notpthread_t Tid; intclient_com_fd; structsockaddr_in client_addr; intClient_addr_len;} mythread_arg_t;mythread_arg_t Pthread_arg_array[max_client];p rint_thread (intindex) {    inti =index; printf ("=======================thread data=======================\n"); printf ("Pthread_arg_array[i].index =%d\n", Pthread_arg_array[i].index); printf ("pthread_arg_array[i].using =%d\n", Pthread_arg_array[i].using); printf ("Pthread_arg_array[i].tid = 0x%lx\n", Pthread_arg_array[i].tid); printf ("pthread_arg_array[i].client_com_fd =%d\n", PTHREAD_ARG_ARRAY[I].CLIENT_COM_FD); printf ("pthread_arg_array[i].client_addr =%s\n", Inet_ntoa (PTHREAD_ARG_ARRAY[I].CLIENT_ADDR.SIN_ADDR)); printf ("=======================thread end========================\n");}void*do_client (void*Arg) {    Charbuf[1400]; inti = (int)(Long) Arg;  while(1)     {        intret = recv (PTHREAD_ARG_ARRAY[I].CLIENT_COM_FD, buf,sizeof(BUF),0); if(ret = =-1|| RET = =0) {perror ("recv");  Break; }        if(!STRNCMP (BUF,"Exit",4))        {             Break; } printf ("recv from client address:%s Data:%s\n", Inet_ntoa (pthread_arg_array[i].client_addr.sin_addr), buf);    } print_thread (i);    Close (PTHREAD_ARG_ARRAY[I].CLIENT_COM_FD); Pthread_arg_array[i].using=0;}voidClient_exit (intSigno)    {pid_t pid; PID=Wait (NULL); //Close (LISTEN_FD);printf"pid =%d exit.\n", PID);}intMainintargcChar**argv) {    intLISTEN_FD = socket (af_inet, Sock_stream,0 ); structsockaddr_in myaddr; Myaddr.sin_family=af_inet; Myaddr.sin_port=htons (Port_num); Myaddr.sin_addr.s_addr=htonl (Inaddr_any); intret; inti;    Signal (SIGCHLD, client_exit); RET= Bind (LISTEN_FD, (structSOCKADDR *) &myaddr,sizeof(structsockaddr)); if(-1==ret) {Perror ("Bind"); Exit (1); } Listen (LISTEN_FD, -); structsockaddr_in client_addr; intClient_addr_len =sizeof(structsockaddr); intclient_com_fd;  while(1)     {        //find an no using entry         for(i =0; (I < max_client) && (1= = Pthread_arg_array[i].using); i++)            ; if(I >=max_client) {printf ("overload!\n");            Close (CLIENT_COM_FD); Continue; } printf ("i =%d\n", i); CLIENT_COM_FD= Accept (LISTEN_FD, (structSOCKADDR *) &client_addr, &Client_addr_len); Pthread_arg_array[i].using=1; printf ("IP Address%s has send connect request.\n", Inet_ntoa (CLIENT_ADDR.SIN_ADDR)); Pthread_arg_array[i].index=i; PTHREAD_ARG_ARRAY[I].CLIENT_COM_FD=client_com_fd; Pthread_arg_array[i].client_addr=client_addr; Pthread_arg_array[i].client_addr_len=Client_addr_len; pthread_t*ptid = &(Pthread_arg_array[i].tid); if(-1= = Pthread_create (Ptid, NULL, Do_client, (void*)(Long) {printf ("pthread_creat () \ n"); Continue; }/*pid_t pid;        PID = fork ();            if (PID < 0) {perror ("fork");        Exit (3);                        } else if (PID = = 0) {close (LISTEN_FD);            Do_client (CLIENT_COM_FD, client_addr);            Close (CLIENT_COM_FD);        Exit (0); }*/    }        //Close (CLIENT_COM_FD); //Close (LISTEN_FD);}

Client code

Myclient.c

#include <sys/socket.h>#include<netinet/inch.h>#include<stdlib.h>#include<unistd.h>#include<string.h>#include<sys/types.h>#include<stdio.h>#definePort_num 5555#defineLENGTH 1460intMainintargcChar*argv[]) {    if(2!=argc) {Exit (1); }    intSOCK_FD = socket (af_inet, Sock_stream,0); structsockaddr_in server_addr; Server_addr.sin_family=af_inet; Server_addr.sin_port=htons (Port_num); Server_addr.sin_addr.s_addr= Inet_addr (argv[1]); intret = Connect (SOCK_FD, (structSOCKADDR *) &server_addr,sizeof(structsockaddr)); if(-1==ret) {Perror ("Connect"); Exit (2); }    CharBuf[length];  while(1) {printf ("Input str:"); //gets (BUF);fgets (buf, LENGTH, stdin); Send (SOCK_FD, buf, strlen (BUF)+1,0); if(!STRNCMP (BUF,"Exit",4))         {             Break; }} close (SOCK_FD);}

Compile link execution: Start the server first, and then start the client on the other terminal. The results of the implementation are as follows:

Socket interface multi-threaded data transfer

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.