1 files changed, 187 insertions, 0 deletions
diff --git a/Kokyu/Kokyu_dsrt.h b/Kokyu/Kokyu_dsrt.h
new file mode 100644
index 00000000000..df4e36e323a
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+++ b/Kokyu/Kokyu_dsrt.h
@@ -0,0 +1,187 @@
+/* -*- C++ -*- */
+/**
+ *  @file   Kokyu_dsrt.h
+ *
+ *  $Id$
+ *
+ *  @author Venkita Subramonian (venkita@cs.wustl.edu)
+ *
+ */
+
+#ifndef KOKYU_DSRT_H
+#define KOKYU_DSRT_H
+#include "ace/pre.h"
+
+//#if !defined (ACE_LACKS_PRAGMA_ONCE)
+//# pragma once
+//#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "kokyu_export.h"
+#include "Kokyu_defs.h"
+
+namespace Kokyu
+{
+  enum DSRT_Sched_Type_t
+    {
+      DSRT_FP,
+      DSRT_MUF,
+      DSRT_MIF
+    };
+
+  struct DSRT_ConfigInfo
+  {
+    DSRT_Sched_Type_t sched_strategy_;
+  };
+
+  template <class DSRT_Scheduler_Traits> class DSRT_Dispatcher_Impl;
+
+  /**
+   * @class DSRT_Dispatcher
+   *
+   * @brief Interface class for dynamic scheduling of threads
+   *
+   * The responsibility of this class is to forward all methods to
+   * its delegation/implementation class, e.g.,
+   * @c Default_DSRT_Dispatcher_Impl. This class follows the pImpl idiom
+   * or the bridge pattern to separate the implementation from the interface.
+   * DSRT_Dispatcher is the class that users will be using to achieve
+   * dynamic scheduling of threads.
+   */
+  template <class DSRT_Scheduler_Traits>
+  class Kokyu_Export DSRT_Dispatcher : private non_copyable
+  {
+  public:
+    typedef typename DSRT_Scheduler_Traits::Guid_t Guid_t;
+    typedef typename DSRT_Scheduler_Traits::QoSDescriptor_t DSRT_QoSDescriptor;
+
+    // = Scheduling methods.
+
+    /// Schedule a thread dynamically based on the qos info supplied.
+    int schedule (Guid_t guid, const DSRT_QoSDescriptor&);
+
+    /// Update the schedule for a thread. This could alter the current schedule.
+    int update_schedule (Guid_t guid, const DSRT_QoSDescriptor&);
+
+    /// Inform the scheduler that the caller thread is about to
+    /// block. This could alter the current schedule.
+    int update_schedule (Guid_t guid, Kokyu::Block_Flag_t flag);
+
+    /// Cancel the schedule for a thread. This could alter the current schedule.
+    int cancel_schedule (Guid_t guid);
+
+    /// Supply this interface with an appropriate implementation.
+    void implementation (DSRT_Dispatcher_Impl<DSRT_Scheduler_Traits>*);
+
+    // = Termination methods.
+
+    /// Shut down the dispatcher. The dispatcher will stop processing requests.
+    int shutdown ();
+
+    /// Non virtual destructor. Read as <b><i>this class not available
+    /// for inheritance<i></b>.
+    ~DSRT_Dispatcher ();
+
+  private:
+    /// Auto ptr to the implementation. Implementation will be created on the
+    /// heap and deleted automatically when the dispatcher object is destructed.
+    auto_ptr<DSRT_Dispatcher_Impl<DSRT_Scheduler_Traits> > dispatcher_impl_;
+  };
+
+
+  /**
+   * @class DSRT_Dispatcher_Factory
+   *
+   * @brief Factory class to create one of the dispatcher interface
+   * objects - for events or DSRT threads.
+   *
+   * Factory class creates a dispatcher or DSRT dispatcher and configures
+   * the interface object with the appropriate implementation.
+   */
+
+  template <class DSRT_Scheduler_Traits>
+  class Kokyu_Export DSRT_Dispatcher_Factory : private non_copyable
+    {
+    public:
+      typedef auto_ptr<DSRT_Dispatcher<DSRT_Scheduler_Traits> > DSRT_Dispatcher_Auto_Ptr;
+
+      /**
+       * Create a dispatcher for dynamic dispatching of threads.
+       * This will be used to dynamic scheduling of distributable threads for
+       * DSRTCORBA. The caller is responsible for freeing the memory.
+       *
+       * @param config Configuration information for the DSRT dispatcher.
+       *
+       * @return Auto pointer to the DSRT dispatcher.
+       */
+      static DSRT_Dispatcher_Auto_Ptr create_DSRT_dispatcher (const DSRT_ConfigInfo&);
+    };
+
+  /**
+   * @class MIF_Sched_Strategy
+   *
+   * @brief Strategy class implementing Maximum Importance First
+   * reordering strategy.
+   *
+   */
+  template <class QoSDescriptor>
+  class MIF_Comparator
+  {
+  public:
+    typedef typename QoSDescriptor::Importance_t Importance_t;
+
+    int operator ()(const QoSDescriptor& qos1,
+		    const QoSDescriptor& qos2);
+  };
+
+  /**
+   * @class Fixed_Priority_Sched_Strategy
+   *
+   * @brief Strategy class implementing Fixed Priority reordering
+   * strategy.
+   *
+   */
+  template <class QoSDescriptor>
+  class Fixed_Priority_Comparator
+  {
+  public:
+    typedef typename QoSDescriptor::Priority_t Priority_t;
+
+    int operator ()(const QoSDescriptor& qos1,
+		    const QoSDescriptor& qos2);
+  };
+
+  /**
+   * @class MUF_Sched_Strategy
+   *
+   * @brief Strategy class implementing Maximum Urgency First
+   * reordering strategy.
+   *
+   */
+  template <class QoSDescriptor>
+  class MUF_Comparator
+  {
+    public:
+    typedef typename QoSDescriptor::Criticality_t Criticality_t;
+    typedef typename QoSDescriptor::Time_t Time_t;
+
+    int operator ()(const QoSDescriptor& qos1,
+		    const QoSDescriptor& qos2);
+  };
+
+
+} //end of namespace
+
+#if defined (__ACE_INLINE__)
+#include "Kokyu_dsrt.i"
+#endif /* __ACE_INLINE__ */
+
+#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
+#include "Kokyu_dsrt.cpp"
+#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
+
+#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)
+#pragma implementation ("Kokyu_dsrt.cpp")
+#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */
+
+#include "ace/post.h"
+#endif /* KOKYU_DSRT_H */