Ivan Shindev / Server

Dependents:   ThreadServer Server_Multi_Client

Server.cpp

Committer:
lemniskata
Date:
2013-06-29
Revision:
4:c57a998796ae
Parent:
1:e1db78d5ccc1

File content as of revision 4:c57a998796ae:

/*
** File name:            Server.cpp
** Descriptions:        TCP server that handles multiple client requests in separate threads
**
**------------------------------------------------------------------------------------------------------
** Created by:            Ivan Shindev
** Created date:        06/11/2013
** Version:                1.0
** Descriptions:        The original version
**
**------------------------------------------------------------------------------------------------------
** Modified by:            Ivan Shindev
** Modified date:    06/29/2013
** Version:
** Descriptions:        Added functionality of running multiple thread instances of the same function
********************************************************************************************************/
#include "Server.h"

#include "mbed.h"
#include "Threads.h"
/*Handle_client handles the client request
*
* Default: Echo the clients request
*/

void Handle_client(void const *socket_data) {
   
   int socket; 
   char buffer[256];
   socket = (int)socket_data;
   
   int n = lwip_recv(socket ,buffer,sizeof(buffer),0); //read from the client

   if (lwip_send(socket ,buffer,n,0)!=n) //send the content back to the socket 
   {
   
 
   }
   

}

 
Server::Server(int port, int max_number_of_clients):
        _port(port), _max_number_of_clients(max_number_of_clients){

   
}

int Server::Start() {

    EthernetInterface eth;
    eth.init(); //Use DHCP
    eth.connect();
    
    int socket_server;
    struct sockaddr_in localHost;
    memset(&localHost, 0, sizeof(localHost));
    int new_socket;
    
    if( (socket_server= lwip_socket(AF_INET, SOCK_STREAM, 0))<0)
    {
        return -1;
    }
    localHost.sin_family = AF_INET;
    localHost.sin_port = htons(_port); //port
    localHost.sin_addr.s_addr = INADDR_ANY;  //localhost address
    
    if (lwip_bind(socket_server, (const struct sockaddr *) &localHost, sizeof(localHost)) < 0) {
 
        return -1;
    }
    if (lwip_listen(socket_server,3)<0)
    {

        perror("listen");
        exit(EXIT_FAILURE);
    }
  
    socklen_t newSockRemoteHostLen = sizeof(localHost);
    
    ThreadList* my_threads=NULL; //List of all Initialized threads
    ThreadList* thread; //pointer to the last created ThreadList element
    int max=_max_number_of_clients;
    while(1)
    {
        new_socket = lwip_accept(socket_server, (struct sockaddr*) &localHost, &newSockRemoteHostLen);
        if (new_socket < 0)
         {
          
         }
         else
         {
            
            if(initThread(&my_threads,Handle_client,&thread,max)==0)
            {
               lwip_close(new_socket);
              
            }
            else
            {
               
                thread->id=osThreadCreate(thread->thread,(void *) new_socket);
            
            }
         }

    
   }
}