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path: root/maximus/networkclock/src/NetworkClockProcessor.cpp
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/************************************************************************
                        NetworkClockProcessor.cpp - Copyright buret

Here you can write a license for your code, some comments or any other
information you want to have in your generated code. To to this simply
configure the "headings" directory in uml to point to a directory
where you have your heading files.

or you can just replace the contents of this file with your own.
If you want to do this, this file is located at

/usr/share/apps/umbrello/headings/heading.cpp

-->Code Generators searches for heading files based on the file extension
   i.e. it will look for a file name ending in ".h" to include in C++ header
   files, and for a file name ending in ".java" to include in all generated
   java code.
   If you name the file "heading.<extension>", Code Generator will always
   choose this file even if there are other files with the same extension in the
   directory. If you name the file something else, it must be the only one with that
   extension in the directory to guarantee that Code Generator will choose it.

you can use variables in your heading files which are replaced at generation
time. possible variables are : author, date, time, filename and filepath.
just write %variable_name%

This file was generated on %date% at %time%
The original location of this file is /home/buret/eclipse/maximus/networkclock/src/NetworkClockProcessor.cpp
**************************************************************************/

#include "NetworkClockProcessor.h"
#include "NetworkClockEvtList.h"
#include "NetworkClockEvt.h"
#include "ClockSciMsg.h"
#include "SciServer.h"
#include "SystemManager.h"
#include "sci_types.h"

// For 'cout'
//
#include <iostream>
using namespace std;

// For the 'processNextEvt' function
//
#define callMemberFunction(object, pMember) (object.*(pMember))
typedef bool (NetworkClockProcessor::*memberFunction)(NetworkClockEvt&);
memberFunction arrayProcess[5] = {  &NetworkClockProcessor::processEvtNone,
                                    &NetworkClockProcessor::processEvtStation,
                                    &NetworkClockProcessor::processEvtFunctionCall,
                                    &NetworkClockProcessor::processEvtPhy,
                                    &NetworkClockProcessor::processEvtSystem  };


// Constructors/Destructors
//  


NetworkClockProcessor::NetworkClockProcessor ( ):
mCurrentTickValue(0),
mpNetworkClockEvtList(NULL),
mpSciServer(NULL),
mpSystemManager(NULL)
{
  if ( initAttributes () )
  {
    registerClockSciMsg ();
  } 
}


bool NetworkClockProcessor::initAttributes ( )
{
  bool bInit = false;
  
  mpSciServer = new SciServer ();
  mpNetworkClockEvtList = new NetworkClockEvtList ();
  mpSystemManager = new SystemManager ();
  
  if ( (NULL != mpSciServer) && (NULL != mpNetworkClockEvtList) && (NULL != mpSystemManager) )
  {
    bInit = true;
  }
  else
  {
    Error e = Error("NetworkClockProcessor::initAttributes", "init error");
    throw (e); 
  }
                                  
  return bInit;
}


NetworkClockProcessor::~NetworkClockProcessor ( )
{
  if (NULL != mpNetworkClockEvtList)
  {
    delete (mpNetworkClockEvtList);
    mpNetworkClockEvtList = NULL;
  }
  if (NULL != mpSciServer)
  {
    delete (mpSciServer);
    mpSciServer = NULL;
  }
  if (NULL != mpSystemManager)
  {
    delete(mpSystemManager);
    mpSystemManager = NULL;
  }
}


//  
// Methods
//  


// Other methods
//  


// public methods
//  


void NetworkClockProcessor::createEvt ( const NetworkClockTick tick_value, const NetworkClockEvt & evt_to_send )
{
  if ( !insertEvt (tick_value, evt_to_send) )
  {
    Error e = Error("NetworkClockProcessor::createEvt", "cannot insert event");
    throw (e); 
  }
}


bool NetworkClockProcessor::insertEvt ( const NetworkClockTick tick_value, const NetworkClockEvt & evt_to_insert )
{
  bool bInsert = false;
  
  NetworkClockEvt * evtToInsert = new NetworkClockEvt (evt_to_insert); // will be deleted by NetworkClockList
  
  if ( (NULL != mpNetworkClockEvtList) && (NULL != evtToInsert) )
  {
    if ( mpNetworkClockEvtList->insertElement (tick_value, evtToInsert) )
    {
      bInsert = true;
    }
  }
  else
  {
    Error e = Error("NetworkClockProcessor::insertEvt", "NULL pointer");
    throw (e); 
  }
  
  return bInsert;
}


bool NetworkClockProcessor::removeEvt ( const NetworkClockTick tick_value, const NetworkClockEvt & evt_to_remove )
{
  bool bRemove = false;
  
  if (NULL != mpNetworkClockEvtList)
  {
    if ( mpNetworkClockEvtList->removeElement (tick_value, &evt_to_remove) )
    {
      bRemove = true;
    }
  }
  else
  {
    Error e = Error("NetworkClockProcessor::removeEvt", "NULL pointer");
    throw (e); 
  }
  
  return bRemove;
}


bool NetworkClockProcessor::processNextEvt ( )
{
  bool bProcess = false;

  NetworkClockEvt evtToProcess;
  
  // Get the next event in the NetworkClockEvtList
  // If there is no more event to process at the current tick, the tick value is incremented depending on the stations state
  // It there is still no event to process at the incremented tick, return false
  //
  if ( (NULL != mpNetworkClockEvtList) && (NULL != mpSystemManager) )
  {
    if ( mpNetworkClockEvtList->getNextElement (getCurrentTickValue(), evtToProcess) )
    {
      bProcess = true;
    }
    else
    {
      if (mpSystemManager->areAllActiveStationsIdle())
      {
        incrementCurrentTickValue();
        if ( mpNetworkClockEvtList->getNextElement (getCurrentTickValue(), evtToProcess) )
        {
          bProcess = true;
        }
      } 
    }
  }
  else
  {
    Error e = Error("NetworkClockProcessor::processNextEvt", "NULL pointer");
    throw (e); 
  }
  
  // If an event has been get, process it
  //
  if (bProcess)
  {
    bProcess = callMemberFunction (*this, arrayProcess[evtToProcess.getDestination()]) (evtToProcess);
  }
  
  return bProcess;
}


bool NetworkClockProcessor::processEvtNone ( NetworkClockEvt & evt_to_process )
{
  bool bProcessNone = false;
  
  cout << "Event cannot be sent because destination is not set" << endl;
  
  return bProcessNone;
}


bool NetworkClockProcessor::processEvtStation ( NetworkClockEvt & evt_to_process )
{
  bool bProcessStation = false;
  
  ClockSciMsg clockSciMsgToSend;
  
  struct Clock_Sci_Msg_Header clockSciMsgHeader = { 0x01,
                                                    MAXIMUS_CLOCK_SCI_MSG_TYPE_NONE,
                                                    evt_to_process.getDestination(),
                                                    evt_to_process.getName(),
                                                    evt_to_process.getDataLength(),
                                                    0 };
  
  clockSciMsgToSend.setSpecializedSciMsgHeader(&clockSciMsgHeader);
  
  uint32_t netclockHigh=0, netclockLow=0;
  netclockLow = (uint32_t)(getCurrentTickValue());
  netclockHigh = (uint32_t)(((uint64_t)(getCurrentTickValue()) >> 32));
  cout << "MSB = " << netclockHigh << " and LSB = " << netclockLow << endl;
  
  struct Sci_Msg_Header sciMsgHeader = { (uint32_t)MAXIMUS_SCI_MSG_MAGIC,
                                         sizeof(struct Clock_Sci_Msg_Header) + evt_to_process.getDataLength(),
                                         MAXIMUS_SCI_MSG_TYPE_NETWORK_CLOCK,
                                         MAXIMUS_SCI_MSG_VERSION,
                                         0x0001,
                                         0, //evt_to_process.getStation()->getOutputFileDescriptor(),
                                         netclockHigh,
                                         netclockLow,
                                         0,
                                         0 };
  
  clockSciMsgToSend.setSciMsgHeader(&sciMsgHeader);
  
  clockSciMsgToSend.setSpecializedSciMsgData(evt_to_process.getData());
  
  cout << "NetworkClockProcessor::processEvtStation sends event to station" << endl;
  bProcessStation = sendEvtMsg (clockSciMsgToSend);
  
  return bProcessStation;
}


bool NetworkClockProcessor::processEvtFunctionCall ( NetworkClockEvt & evt_to_process )
{
  bool bProcessFunction = false;
  
  return bProcessFunction;
}


bool NetworkClockProcessor::processEvtPhy ( NetworkClockEvt & evt_to_process )
{
  bool bProcessPhy = false;
  
  return bProcessPhy;
}


bool NetworkClockProcessor::processEvtSystem ( NetworkClockEvt & evt_to_process )
{
  bool bProcessSystem = false;
  
  return bProcessSystem;  
}


// private methods
//  

 
void NetworkClockProcessor::incrementCurrentTickValue ( )
{
  mCurrentTickValue++;
}


bool NetworkClockProcessor::sendEvtMsg ( ClockSciMsg & clock_sci_msg_to_send )
{
  bool bSend = false;
  
  if (NULL != mpSciServer)
  {
    bSend = mpSciServer->sendSciMsg (&clock_sci_msg_to_send);
  }
  else
  {
    Error e = Error("NetworkClockProcessor::sendEvtMsg", "NULL pointer");
    throw (e); 
  }
    
  return bSend;
}


void NetworkClockProcessor::registerClockSciMsg ( )
{
  cout << "NetworkClockProcessor::registerClockSciMsg" << endl;
  mpSciServer->registerSpecializedSciMsg(MAXIMUS_SCI_MSG_TYPE_NETWORK_CLOCK, new ClockSciMsg ( ));
}


// protected methods
//  


// Accessor methods
//  


// public attribute accessor methods
//  


// private attribute accessor methods
//  


NetworkClockTick NetworkClockProcessor::getCurrentTickValue ( ) const
{
  return mCurrentTickValue;
}


// protected attribute accessor methods
//