thodg/patchwork13/cluster/server/tcp.c

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• Hash : 94046104
  Author : Thomas de Grivel
  Date : 2020-02-24T15:19:27
  

  import from branch patchwork13-0.1 on SourceForge.net

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• cluster/server/tcp.c

• /*
  
    This is part of Patchwork13! the real-time data synthesis toolkit.
    http://patchwork13.sourceforge.net/
  
    pw13_cluster - the patchwork13 cluster
    Copyright (C) 2005 Thomas de Grivel <billitch@yahoo.fr>
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
    as published by the Free Software Foundation; either version 2
    of the License, or (at your option) any later version.
    
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
    
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  
  *
  
    tcp.c  -  mode tcp
  
  */
  #ifdef WIN32
  #  include "../common/win32.h"
  #else
  #  include <sys/types.h>
  #  include <sys/socket.h>
  #  include <netinet/in.h>
  #  include <arpa/inet.h>
  #  include <unistd.h>
  #endif
  
  #include <pw13/pw13.h>
  #include "server.h"
  #include "tcp.h"
  #include "output_server.h"
  #include "../common/transmit.h"
  
  void *TCP_mode(void *param)
  {
    Pw13_Patchwork *pw;
    struct sockaddr_in my_addr;
    struct sockaddr_in their_addr;
    int sockTCP;
    s_server *server_structure;
    
    pw = malloc ( sizeof(Pw13_Patchwork));
    pw13_patchwork_init (pw);
  
    my_addr.sin_family = AF_INET;
    my_addr.sin_port = htons (PW13_CLUSTER_SERVER_PORT);
    my_addr.sin_addr.s_addr = INADDR_ANY;
    memset (&(my_addr.sin_zero), 0, 8);
    
    if ((sockTCP = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
      perror("socket");
      exit(1);
    }
  
    server_structure = create_init_s_server (sockTCP);
  
    if (bind (sockTCP, (struct sockaddr *) &my_addr,
  	    sizeof(struct sockaddr)) == -1) {
      perror("bind");
      exit(1);
    }
    if (listen (sockTCP, MAXBUFLEN) == -1) {
      perror ("listen");
      exit (1);
    }
    
  
    TCPaccept (sockTCP, &their_addr, pw, server_structure);
    return param;
  }
  
  
  /* boucle d'acceptation */
  int TCPaccept (int sockTCP, struct sockaddr_in *their_addr,
  	       Pw13_Patchwork *pw,
  	       s_server *server_structure)
  {
    int sin_size, new_socket;
    int num;    
    
    while (1) {  /* main accept() loop */
      sin_size = sizeof(struct sockaddr_in);
      if ((new_socket = accept (sockTCP, (struct sockaddr *) their_addr,
  			      (socklen_t*) &sin_size)) == -1) {
        printf("error : accept \n");
        continue;
      }
      printf ("serveur: Recu connection de : %s\n",
  	    inet_ntoa (their_addr->sin_addr));    
      
  
      /* num sert a differentier client/output */
      waitsock_data (new_socket, sizeof(int));
      printf("buffer received \n");
      recv (new_socket, (void*) &num, sizeof (num), 0);
      
      if (num) {  /* is client */
        
        send_int (new_socket, (int) pw);
        send_int (new_socket, (int) pw->master);
        
        printf("TCP_loop_receive_client_of_server \n");
        TCP_loop_receive_client_of_server (pw, new_socket, server_structure);
        
      } else {   /* is server */ 
  
        /* il faudrait regler le remplissable correct de pw, pb si plusieurs pw */
        printf ("\n\n\n              TCP_loop_connect_from_server_to_server\n\n\n");
        TCP_loop_receive_server (pw,  new_socket);
      }
      /* pw13_msleep (100); */
    }
    return 0;
  }
  
  
  /* creation du thread pour recevoir les msg venant du CLIENT */
  void TCP_loop_receive_client_of_server (Pw13_Patchwork *pw,
  					int sockfd,
  					s_server *server_structure)
  {
    pthread_t thread_receive;
    client_of_server *cos;
    
    /* cree le client associe et l'ajoute dans la liste des clients du server */
  
    cos = create_init_s_client_of_server (pw, sockfd, server_structure);
  
    pthread_create (&thread_receive, NULL, 
  		 boucle_message_reseau_client, 
  		 cos);
  
    cos->thread_rcv = &thread_receive;
    
    pw13_list_insert_tail (&server_structure->clients,
  			 cos);
    
  }
  
  
  /* creation du thread pour recevoir les msg venant du SERVER */
  void TCP_loop_receive_server (Pw13_Patchwork *pw,
  			      int sockfd)
  {
    pthread_t thread_receive;
    output_server *os;
    pw=pw;
    
    os = malloc (sizeof (output_server));
    os->socket = sockfd;
  
    pthread_create(&thread_receive, NULL, 
  		 boucle_output_server_traitement_message, 
  		 os);
    
    os->thread_rcv = &thread_receive;
  }
  
  
  

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