TAO/tao/RTCORBA/Linear_Priority_Mapping.h

   1 // -*- C++ -*-
   2
   3
   4 //=============================================================================
   5 /**
   6  *  @file   Linear_Priority_Mapping.h
   7  *
   8  * Declares the Linear_Priority_Mapping interface, as defined in the
   9  * RT-CORBA spec.
  10  *
  11  *  @author Carlos O'Ryan (coryan@cs.wustl.edu)
  12  */
  13 //=============================================================================
  14
  15
  16 #ifndef TAO_LINEAR_PRIORITY_MAPPING_H
  17 #define TAO_LINEAR_PRIORITY_MAPPING_H
  18 #include /**/ "ace/pre.h"
  19
  20 #include "tao/orbconf.h"
  21
  22 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  23 # pragma once
  24 #endif /* ACE_LACKS_PRAGMA_ONCE */
  25
  26 #if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
  27
  28 #include "tao/RTCORBA/rtcorba_export.h"
  29 #include "tao/RTCORBA/Priority_Mapping.h"
  30
  31 TAO_BEGIN_VERSIONED_NAMESPACE_DECL
  32
  33 /**
  34  * @class TAO_Linear_Priority_Mapping
  35  *
  36  * @brief A simple implementation of the Priority_Mapping interface.
  37  *
  38  * This implementation uses linear mapping between the range of
  39  * priorities for a given scheduling class (ACE_SCHED_OTHER,
  40  * ACE_SCHED_FIFO, ACE_SCHED_RR) and the valid range of CORBA
  41  * priorities (0...32767)
  42  */
  43 class TAO_RTCORBA_Export TAO_Linear_Priority_Mapping : public TAO_Priority_Mapping
  44 {
  45 public:
  46   /// Default constructor
  47   TAO_Linear_Priority_Mapping (long policy);
  48
  49   /// The destructor
  50   virtual ~TAO_Linear_Priority_Mapping ();
  51
  52   virtual CORBA::Boolean to_native (RTCORBA::Priority corba_priority,
  53                                     RTCORBA::NativePriority &native_priority);
  54   virtual CORBA::Boolean to_CORBA (RTCORBA::NativePriority native_priority,
  55                                    RTCORBA::Priority &corba_priority);
  56
  57 private:
  58   /// The scheduling policy
  59   long policy_;
  60
  61   // The range
  62   int const min_;
  63   int const max_;
  64 };
  65
  66 TAO_END_VERSIONED_NAMESPACE_DECL
  67
  68 #endif /* TAO_HAS_CORBA_MESSAGING && TAO_HAS_CORBA_MESSAGING != 0 */
  69
  70 #include /**/ "ace/post.h"
  71 #endif /* TAO_LINEAR_PRIORITY_MAPPING_H */