ccommbufferbase.h

//=========================================================================
//  CCOMMBUFFERBASE.H - part of
//
//                     OMNeT++/OMNEST
//            Discrete System Simulation in C++
//
//=========================================================================
 
/*--------------------------------------------------------------*
  Copyright (C) 1992-2017 Andras Varga
  Copyright (C) 2006-2017 OpenSim Ltd.
 
  This file is distributed WITHOUT ANY WARRANTY. See the file
  `license' for details on this and other legal matters.
*--------------------------------------------------------------*/
 
#ifndef __OMNETPP_CCOMMBUFFERBASE_H
#define __OMNETPP_CCOMMBUFFERBASE_H
 
#include "omnetpp/ccommbuffer.h"
 
namespace omnetpp {
 
class SIM_API cCommBufferBase : public cCommBuffer
{
  protected:
    char *mBuffer = nullptr; // the buffer
    int mBufferSize = 0;     // size of buffer allocated
    int mMsgSize = 0;        // current msg size (incremented by pack() functions)
    int mPosition = 0;       // current position in buffer for unpacking
 
  protected:
    void extendBufferFor(int dataSize);
 
  public:
    cCommBufferBase() {}
 
    virtual ~cCommBufferBase();
 
    char *getBuffer() const;
 
    int getBufferLength() const;
 
    void allocateAtLeast(int size);
 
    void setMessageSize(int size);
 
    int getMessageSize() const;
 
    void reset();
 
    virtual bool isBufferEmpty() const override;
 
    virtual void assertBufferEmpty() override;
 
    virtual void swap(cCommBufferBase *other);
 
};
 
}  // namespace omnetpp
 
 
#endif