ChangeLogTag:Wed Feb 3 12:17:02 1999 Carlos O'Ryan <coryan@cs.wustl.edu>

1 files changed, 102 insertions, 0 deletions

diff --git a/TAO/orbsvcs/orbsvcs/Event/EC_Disjunction_Filter.h b/TAO/orbsvcs/orbsvcs/Event/EC_Disjunction_Filter.h
new file mode 100644
index 00000000000..adf973f29e3
--- /dev/null
+++ b/TAO/orbsvcs/orbsvcs/Event/EC_Disjunction_Filter.h
@@ -0,0 +1,102 @@
+/* -*- C++ -*- */
+// $Id$
+//
+// ============================================================================
+//
+// = LIBRARY
+//   ORBSVCS Real-time Event Channel
+//
+// = FILENAME
+//   EC_Disjunction_Filter
+//
+// = AUTHOR
+//   Carlos O'Ryan (coryan@cs.wustl.edu)
+//
+// = DESCRIPTION
+//   A per-consumer filter that accepts events from a set of
+//   children.
+//
+// = CREDITS
+//   Based on previous work by Tim Harrison (harrison@cs.wustl.edu)
+//   and other members of the DOC group.
+//   More details can be found in:
+//   http://www.cs.wustl.edu/~schmidt/oopsla.ps.gz
+//   http://www.cs.wustl.edu/~schmidt/JSAC-98.ps.gz
+//
+//
+// ============================================================================
+
+#ifndef TAO_EC_DISJUNCTION_FILTER_H
+#define TAO_EC_DISJUNCTION_FILTER_H
+
+#include "EC_Filter.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+class TAO_EC_Disjunction_Filter : public TAO_EC_Filter
+{
+  // = TITLE
+  //   The disjunction filter.
+  //
+  // = DESCRIPTION
+  //   This filter has a set of children (fixed at creation time), if
+  //   any of the children accepts an event then it also does.
+  //
+  // = MEMORY MANAGMENT
+  //   It assumes ownership of the children.
+  //
+public:
+  TAO_EC_Disjunction_Filter (TAO_EC_Filter* children[],
+                             size_t n);
+  // Constructor. It assumes ownership of both the array and the
+  // children.
+  
+  virtual ~TAO_EC_Disjunction_Filter (void);
+  // Destructor
+
+  // = The TAO_EC_Filter methods, please check the documentation in
+  // TAO_EC_Filter.
+  virtual int filter (const RtecEventComm::EventSet& event,
+                      TAO_EC_QOS_Info& qos_info,
+                      CORBA::Environment& env);
+  virtual int filter_nocopy (RtecEventComm::EventSet& event,
+                             TAO_EC_QOS_Info& qos_info,
+                             CORBA::Environment& env);
+  virtual void push (const RtecEventComm::EventSet& event,
+                     TAO_EC_QOS_Info& qos_info,
+                     CORBA::Environment& env);
+  virtual void push_nocopy (RtecEventComm::EventSet& event,
+                            TAO_EC_QOS_Info& qos_info,
+                            CORBA::Environment& env);
+  virtual void clear (void);
+  virtual CORBA::ULong max_event_size (void) const;
+  virtual void event_ids (TAO_EC_Filter::Headers& headers);
+
+  typedef TAO_EC_Filter* value_type;
+  typedef TAO_EC_Filter* const const_value_type;
+  typedef const_value_type* ChildrenIterator;
+  ChildrenIterator begin (void) const;
+  ChildrenIterator end (void) const;
+  // STL-like iterators...
+
+private: 
+  ACE_UNIMPLEMENTED_FUNC (TAO_EC_Disjunction_Filter
+                              (const TAO_EC_Disjunction_Filter&))
+  ACE_UNIMPLEMENTED_FUNC (TAO_EC_Disjunction_Filter& operator=
+                              (const TAO_EC_Disjunction_Filter&))  
+
+private:
+  TAO_EC_Filter** children_;
+  // The children
+
+  size_t n_;
+  // The number of children.
+};
+
+#if defined (__ACE_INLINE__)
+#include "EC_Disjunction_Filter.i"
+#endif /* __ACE_INLINE__ */
+
+#endif /* TAO_EC_DISJUNCTION_FILTER_H */