Added ACE_Command_Base and ACE_Command_Callback, added deferred callbacks to ACE_Thread_Timer_Queue_Adapter

1 files changed, 69 insertions, 0 deletions

diff --git a/ace/Functor.h b/ace/Functor.h
new file mode 100644
index 00000000000..6095dc18742
--- /dev/null
+++ b/ace/Functor.h
@@ -0,0 +1,69 @@
+/* -*- C++ -*- */
+// $Id$
+
+// ============================================================================
+//
+// = LIBRARY
+//    ace
+//
+// = FILENAME
+//    Functor.h
+//
+// = DESCRIPTION
+//    Non-templatized classes for implementing the GOF Command Pattern,
+//    also known as functors or function objects.
+//
+// = AUTHOR
+//    Chris Gill           <cdgill@cs.wustl.edu>
+//
+//    Based on Command Pattern implementations originally done by
+//
+//    Carlos O'Ryan        <coryan@cs.wustl.edu>  and
+//    Douglas C. Schmidt   <schmidt@cs.wustl.edu> and
+//    Sergio Flores-Gaitan <sergio@cs.wustl.edu>
+//
+// ============================================================================
+
+#if !defined (ACE_FUNCTOR_H)
+#define ACE_FUNCTOR_H
+
+#include "ace/OS.h"
+
+class ACE_Command_Base
+{
+  // = TITLE
+  //    Defines an abstract class that allows us to invoke commands
+  //    without knowing anything about the implementation.
+  //
+  // = DESCRIPTION
+  //    This class declares an interface to execute a command
+  //    independent of the effect of the command, or the objects used
+  //    to implement it.
+public:
+
+  ACE_Command_Base (void) {}
+  // Default constructor.
+
+  virtual ~ACE_Command_Base (void) {}
+  // Virtaul destructor.
+
+  virtual int execute (void *arg = 0) = 0;
+  // Invokes the method encapsulated by the command, passing along the
+  // passed argument (if any).  Users of classes derived from this
+  // class must ensure that the resulting invocation can tolerate
+  // a null void pointer being passed, or otherwise ensure that
+  // this will never occur.
+};
+
+
+#if defined (__ACE_INLINE__)
+#include "ace/Functor.i"
+#endif /* __ACE_INLINE__ */
+
+// Include the templates here.
+#include "ace/Functor_T.h"
+
+
+#endif /* ACE_FUNCTOR_H */
+
+// EOF