Connection.h

Go to the documentation of this file.

/*                                              -*- mode:C++ -*-
  Connection.h Multithread communicator
  Copyright (C) 2014 The Regents of the University of New Mexico.  All rights reserved.

  This library 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 2.1 of the License, or (at your option) any later version.

  This library 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 General Public License
  along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
  USA
*/

#ifndef CONNECTION_H
#define CONNECTION_H

#include "ThreadQueue.h"
#include "Mutex.h"
#include "itype.h"
#include "Logger.h"
#include <assert.h>

namespace MFM
{
  class Connection
  {
  private:

    Mutex m_lock;

    ThreadQueue m_outbuffer, m_inbuffer;

    bool m_connected;

  public:

    Connection()
    {
      m_connected = false;
    }

    ~Connection()
    {
    }

    void SetConnected(bool value)
    {
      m_connected = value;
    }

    bool IsConnected()
    {
      return m_connected;
    }

    bool IsLockedByAnother()
    {
      return m_lock.IsLockedByAnother();
    }

    bool Lock()
    {
      /*
      if (m_lock.IHoldThisLock()) {
        LOG.Debug("Connection %p already owns lock",(void*) this);
        return false;
      }
      */
      return m_lock.TryLock();
    }

    void Unlock()
    {
      m_lock.Unlock();
    }

    void ReadBlocking(bool child, u8* buffer, u32 length)
    {
      ThreadQueue& queue = child ? m_outbuffer : m_inbuffer;

      queue.ReadBlocking(buffer, length);
    }

    u32 Read(bool child, u8* buffer, u32 length)
    {
      ThreadQueue& queue = child ? m_outbuffer : m_inbuffer;

      return queue.Read(buffer, length);
    }

    void PeekRead(bool output, u8* buffer, u32 index, u32 length)
    {
      ThreadQueue& queue = output ? m_outbuffer : m_inbuffer;

      queue.PeekRead(buffer, index, length);
    }

    void Write(bool child, u8* buffer, u32 length)
    {
      ThreadQueue& queue = !child ? m_outbuffer : m_inbuffer;

      queue.Write(buffer, length);
    }

    u32 InputByteCount()
    {
      return m_inbuffer.BytesAvailable();
    }

    u32 OutputByteCount()
    {
      return m_outbuffer.BytesAvailable();
    }

    void LogAllPackets()
    {

    }

    void ReportConnectionStatus(Logger::Level level, bool owned) ;

  };
}

#endif /* CONNECTION_H */