1 files changed, 89 insertions, 0 deletions
diff --git a/TAO/tao/Incoming_Message_Stack.h b/TAO/tao/Incoming_Message_Stack.h
new file mode 100644
index 00000000000..f0cfba43043
--- /dev/null
+++ b/TAO/tao/Incoming_Message_Stack.h
@@ -0,0 +1,89 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file Incoming_Message_Stack.h
+ *
+ *  $Id$
+ *
+ *  @author Frank Rehberger <frehberg@prismtech.com>
+ */
+//=============================================================================
+
+#ifndef TAO_INCOMING_MESSAGE_STACK_H
+#define TAO_INCOMING_MESSAGE_STACK_H
+
+#include /**/ "ace/pre.h"
+
+#include "tao/Incoming_Message_Queue.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#if defined (__BORLANDC__) && (__BORLANDC__ <= 0x582)
+#include /**/ "tao/TAO_Export.h"
+#endif
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+class ACE_Allocator;
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+TAO_BEGIN_VERSIONED_NAMESPACE_DECL
+
+namespace TAO
+{
+/**
+ * @class Incoming_Message_Stack
+ *
+ * @brief Implements stack for TAO_Queued_Data.
+ *
+ * Internal class, providing stack functionality for TAO_Queued_Data
+ * objects.  Stack operations don't require memory allocation.
+*/
+#if defined (__BORLANDC__) && (__BORLANDC__ <= 0x590)
+class TAO_Export Incoming_Message_Stack
+#else
+class Incoming_Message_Stack
+#endif
+{
+public:
+  /// default constructor, intiliazes empty stack.
+  Incoming_Message_Stack();
+
+  /// destructor, releases all elements on stack
+  ~Incoming_Message_Stack() ;
+
+  /// pushing a new element onto stack,
+  /// @a data must be a valid pointer, not NULL
+  void push(TAO_Queued_Data *data);
+
+  /// removing top element of stack,
+  /// @return 0 for Ok and @a data is defined, -1 for error
+  int pop (TAO_Queued_Data* &data);
+
+  /// peeking top element of stack
+  /// @return 0 for Ok, -1 for error
+  int top (TAO_Queued_Data* &data);
+
+private:
+  /// top element of stack
+  TAO_Queued_Data *top_;
+
+private:
+  /// Default Copy-Constructor -  not for public usage.
+  Incoming_Message_Stack (const Incoming_Message_Stack&);
+
+  /// Assignment operator - not for public usage
+  Incoming_Message_Stack& operator= (Incoming_Message_Stack& other);
+};
+}
+
+TAO_END_VERSIONED_NAMESPACE_DECL
+
+#if defined (__ACE_INLINE__)
+# include "tao/Incoming_Message_Stack.inl"
+#endif /* __ACE_INLINE__ */
+
+#include /**/ "ace/post.h"
+#endif /*TAO_INCOMING_MESSAGE_STACK_H*/