// $Id$

// ============================================================================
//
// = LIBRARY
//   TAO
//
// = FILENAME
//   Direct_Priority_Mapping.h
//
// = DESCRIPTION
//   Declares the Direct_Priority_Mapping interface, as defined in the
//   RT-CORBA spec.
//
// = AUTHOR
//   Carlos O'Ryan (coryan@cs.wustl.edu)
//
// ============================================================================

#ifndef TAO_DIRECT_PRIORITY_MAPPING_H
#define TAO_DIRECT_PRIORITY_MAPPING_H
#include "ace/pre.h"

#include "tao/orbconf.h"

#if (TAO_HAS_RT_CORBA == 1)

#include "tao/Priority_Mapping.h"

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

class TAO_Export TAO_Direct_Priority_Mapping : public TAO_Priority_Mapping
{
  //
  // = TITLE
  //   A simple implementation of the Priority_Mapping interface
  //
  // = DESCRIPTION
  //   This implementation uses direct mapping between the range of
  //   priorities for a given scheduling class (ACE_SCHED_OTHER,
  //   ACE_SCHED_FIFO, ACE_SCHED_RR) and the valid range of CORBA
  //   priorities (0...32767)
  //
public:
  TAO_Direct_Priority_Mapping (int policy = ACE_SCHED_OTHER);
  // Default constructor

  virtual ~TAO_Direct_Priority_Mapping (void);
  // The destructor

  virtual CORBA::Boolean
      to_native (RTCORBA::Priority corba_priority,
                 RTCORBA::NativePriority &native_priority);
  virtual CORBA::Boolean
      to_CORBA (RTCORBA::NativePriority native_priority,
                RTCORBA::Priority &corba_priority);

private:
  int policy_;
  // The scheduling policy

  int min_;
  int max_;
  // The range
};

#if defined (__ACE_INLINE__)
# include "tao/Direct_Priority_Mapping.i"
#endif /* __ACE_INLINE__ */

#endif /* TAO_HAS_RT_CORBA == 1 */

#include "ace/post.h"
#endif /* TAO_DIRECT_PRIORITY_MAPPING_H */