/* -*- C++ -*- */
// $Id: Multiplexor.h,v 4.4 1998/10/20 02:33:57 levine Exp $

// ============================================================================
//
// = LIBRARY
//    ace
//
// = FILENAME
//    Multiplexor.h
//
// = DESCRIPTION
//     Define the ACE_Driver and ACE_Multiplexor container classes.
//     Note that these classes have never been implemented due to lack
//     of need.
//
// = AUTHOR
//    Doug Schmidt
//
// ============================================================================

#ifndef ACE_MULTIPLEXOR_H
#define ACE_MULTIPLEXOR_H

#include "ace/Module.h"

#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */

#include "ace/Map_Manager.h"

#if defined (ACE_HAS_THREADS)

#if 0
class ACE_Export ACE_Driver
{
  // = TITLE
  //
  //
  // = DESCRIPTION
  //
public:
  ACE_Driver (void);
  ~ACE_Driver (void);

  virtual int link_from_below (ACE_Module *mod);
  virtual ACE_Module *alloc_module (ACE_Driver *) = 0;
  virtual int unlink_from_below (ACE_Module *);
};

class ACE_Export ACE_Multiplexor
{
  // = TITLE
  //
  // = DESCRIPTION
  //
public:
  // = Constructors and destructors
  ACE_Multiplexor (void);
  ~ACE_Multiplexor (void);

  virtual int link_from_above (ACE_Driver &ld);
  virtual int link_from_above (ACE_Multiplexor &lm);
  virtual int link_from_below (ACE_Module *mod);
  virtual ACE_Module *alloc_lower_module (ACE_Multiplexor *) = 0;
  virtual ACE_Module *alloc_upper_module (ACE_Multiplexor *) = 0;

  virtual int unlink_from_above (ACE_Driver &ld);
  virtual int unlink_from_above (ACE_Multiplexor &lm);
  virtual int unlink_from_below (ACE_Module *mod);
};

#if defined (__ACE_INLINE__)
#include "ace/Multiplexor.i"
#endif /* __ACE_INLINE__ */

#endif /* 0 */

#endif /* ACE_HAS_THREADS */
#endif /* ACE_MULTIPLEXOR_H */
