1 files changed, 98 insertions, 0 deletions
diff --git a/trunk/TAO/tao/RTCORBA/Multi_Priority_Mapping.h b/trunk/TAO/tao/RTCORBA/Multi_Priority_Mapping.h
new file mode 100644
index 00000000000..a3b3b58ec75
--- /dev/null
+++ b/trunk/TAO/tao/RTCORBA/Multi_Priority_Mapping.h
@@ -0,0 +1,98 @@
+// -*- C++ -*-
+
+// $Id$
+
+// ============================================================================
+//
+// = LIBRARY
+//   TAO
+//
+// = FILENAME
+//   Multi_Priority_Mapping.h
+//
+// = DESCRIPTION
+//   Declares a priority mapping to support cross platform communication.
+//
+// = AUTHOR
+//   Brian Mendel (brian.r.mendel@boeing.com)
+//
+// ============================================================================
+
+#ifndef TAO_MULTI_PRIORITY_MAPPING_H
+#define TAO_MULTI_PRIORITY_MAPPING_H
+
+#include "tao/orbconf.h"
+
+#include "tao/RTCORBA/Priority_Mapping.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#if defined (TAO_HAS_CORBA_MESSAGING) && TAO_HAS_CORBA_MESSAGING != 0
+
+TAO_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class TAO_Multi_Priority_Mapping
+ *
+ * @brief An implementation of the Priority_Mapping interface for communication
+ * between different platforms
+ *
+ * This implementation uses a custom 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)
+ */
+class TAO_RTCORBA_Export TAO_Multi_Priority_Mapping
+: public TAO_Priority_Mapping
+{
+public:
+  /// Default constructor
+  /**
+   * @param base_native_priority The native priority to use for the highest
+   * priority endpoint.
+   * @param base_corba_priority The corba priority to use for the highest
+   * priority endpoint
+   * @param priority_spacing The priority increment to use between endpoints
+   * @param priorities_contiguous Some platforms do use contiguous priorities
+   * @param policy The scheduling policy to use.
+   */
+  TAO_Multi_Priority_Mapping (int base_native_priority,
+                              int base_corba_priority,
+                              int priority_spacing = 1,
+                              int priorities_contiguous = 1,
+                              int policy = ACE_SCHED_FIFO);
+
+  /// The destructor
+  virtual ~TAO_Multi_Priority_Mapping (void);
+
+  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 base_native_priority_;
+  int base_corba_priority_;
+  // The base settings
+
+  const int priority_spacing_;
+  const int priorities_contiguous_;
+
+  /// The scheduling policy
+  int policy_;
+
+  int const min_;
+  int const max_;
+  // The range
+};
+
+TAO_END_VERSIONED_NAMESPACE_DECL
+
+#endif /* TAO_HAS_CORBA_MESSAGING && TAO_HAS_CORBA_MESSAGING != 0 */
+
+#endif /* TAO_MULTI_PRIORITY_MAPPING_H */