networkmessage_rw.cc

certi-SHM-3.0.tar 不错的开源的分布式方针软件 大家多多支持 他是linux

// -*- mode:C++ ; tab-width:4 ; c-basic-offset:4 ; indent-tabs-mode:nil -*-
// ----------------------------------------------------------------------------
// CERTI - HLA RunTime Infrastructure
// Copyright (C) 2002, 2003  ONERA
//
// This file is part of CERTI-libCERTI
//
// CERTI-libCERTI is free software ; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation ; either version 2 of
// the License, or (at your option) any later version.
//
// CERTI-libCERTI 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser 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
//
// $Id: NetworkMessage_RW.cc,v 3.4 2003/03/21 15:06:46 breholee Exp $
// ----------------------------------------------------------------------------

#include <config.h>

#include "NetworkMessage.hh"

#define USE_SHM
namespace certi {

static pdCDebug D("MESSAGER", "(messageR) - ");

// You can comment this out if you don't want to optimize network messages.
#define USE_HEADER_AND_BODY


// ----------------
// -- Read Socket--
// ----------------

void
NetworkMessage::read(Socket *socket)
    throw (NetworkError,
           NetworkSignal)
{
#ifdef USE_SHM
  Boolean Result;
  SharedMemory shm;
  D.Out(pdDebug, "Lecture sur le soket shm");
  socket->receive(&shm,0);
  D.Out(pdDebug, "Lecture achevee : traitement du Header");
  Result = readHeader(&shm);
    
    // 2- if ReadHeader returned RTI_TRUE, Read Body.
    
    if (Result == RTI_TRUE)
    {
        D.Out(pdDebug, "Traitement du body");
        readBody(&shm);
    }
#else
#ifdef USE_HEADER_AND_BODY

    Boolean Result ;
    // 1- Read Header
    Result = readHeader(socket);

    // 2- if ReadHeader returned RTI_TRUE, Read Body.
    if (Result == RTI_TRUE)
        readBody(socket);

#else

    Socket->receive(this, sizeof(NetworkMessage));

#endif
#endif
}

// ------------------------
// -- Read Shared Memory --
// ------------------------

int
NetworkMessage::read(SharedMemory *shm, int wait)
    throw (NetworkError,
           NetworkSignal)
           
// ----------------------------------------------------
//   if (wait) 
//       wait until a message in shm is available
//       return 1 ;
//   else
//       if (a message in shm is available)
//           read the message ;
//           return 1 ;
//       else
//           return 0 ;
// ----------------------------------------------------

{
#ifdef USE_HEADER_AND_BODY

    Boolean Result ;
    
    
    if (shm->qui == EMPTY)
        if(wait) 
           D.Out(pdProtocol, "READ_INIT : Bloqu