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// -*- C++ -*-
//=============================================================================
/**
* @file GIOP_Fragmentation_Strategy.h
*
* @author Ossama Othman <ossama@dre.vanderbilt.edu>
*/
//=============================================================================
#ifndef TAO_GIOP_FRAGMENTATION_STRATEGY_H
#define TAO_GIOP_FRAGMENTATION_STRATEGY_H
#include /**/ "ace/pre.h"
#include /**/ "tao/TAO_Export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/orbconf.h"
#include "ace/CDR_Base.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
class TAO_OutputCDR;
/**
* @class TAO_GIOP_Fragmenation_Strategy
*
* @brief Abstract base class that defines TAO fragmentation strategy
* interface.
*
* GIOP message fragmentation is deferred to a fragmentation strategy
*/
class TAO_Export TAO_GIOP_Fragmentation_Strategy
{
public:
/// Constructor
TAO_GIOP_Fragmentation_Strategy (void) {}
/// Destructor.
virtual ~TAO_GIOP_Fragmentation_Strategy (void);
/// Fragment the (potentially partially) encoded GIOP message.
/**
* Fragmentation the contents of the CDR output stream @a cdr into
* smaller chunks of data of size that fits within the configured
* ORB fragmentation threshold, and send each fragment "over the
* wire."
*
* @note Fragmentation will only occur if the CDR stream length will
* surpass the configured fragmentation threshold when
* marshaling the pending set of data.
*
* @param cdr Output CDR stream.
* @param pending_alignment Size of alignment boundary for next data
* to be marshaled (e.g. 4 for a
* CORBA::ULong).
* @param pending_length Size of next data to be marshaled (e.g. 2
* for a CORBA::UShort).
*
* @return Zero on success.
*/
virtual int fragment (TAO_OutputCDR & cdr,
ACE_CDR::ULong pending_alignment,
ACE_CDR::ULong pending_length) = 0;
private:
// Disallow copying and assignment.
TAO_GIOP_Fragmentation_Strategy (TAO_GIOP_Fragmentation_Strategy const &);
void operator= (TAO_GIOP_Fragmentation_Strategy const &);
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_GIOP_FRAGMENTATION_STRATEGY_H */
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