1 files changed, 123 insertions, 0 deletions
diff --git a/trunk/TAO/tao/Asynch_Queued_Message.h b/trunk/TAO/tao/Asynch_Queued_Message.h
new file mode 100644
index 00000000000..a00875866d7
--- /dev/null
+++ b/trunk/TAO/tao/Asynch_Queued_Message.h
@@ -0,0 +1,123 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file Asynch_Queued_Message.h
+ *
+ *  $Id$
+ *
+ *  @author Carlos O'Ryan <coryan@uci.edu>
+ */
+//=============================================================================
+
+#ifndef TAO_ASYNCH_QUEUED_MESSAGE_H
+#define TAO_ASYNCH_QUEUED_MESSAGE_H
+
+#include /**/ "ace/pre.h"
+
+#include "tao/Queued_Message.h"
+
+#include "ace/Time_Value.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+class ACE_Message_Block;
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+TAO_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class TAO_Asynch_Queued_Message
+ *
+ * @brief Specialize TAO_Queued_Message for asynch requests,
+ *        i.e. oneways sent with SYNC_NONE policy.
+ *
+ */
+class TAO_Export TAO_Asynch_Queued_Message : public TAO_Queued_Message
+{
+public:
+  /// Constructor
+  /**
+   * @param contents The message block chain that must be sent.
+   *
+   * @param alloc Allocator used for creating @c this object.
+   *
+   * @param timeout The relative timeout after which this 
+   * message should be expired.
+   *
+   * @todo I'm almost sure this class will require a callback
+   *       interface for AMIs sent with SYNC_NONE policy.  Those guys
+   *       need to hear when the connection timeouts or closes, but
+   *       cannot block waiting for the message to be delivered.
+   */
+  TAO_Asynch_Queued_Message (const ACE_Message_Block *contents,
+                             TAO_ORB_Core *oc,
+                             ACE_Time_Value *timeout,
+                             ACE_Allocator *alloc = 0,
+                             bool is_heap_allocated = false);
+
+
+  /// Destructor
+  virtual ~TAO_Asynch_Queued_Message (void);
+
+  /**
+   * @name Implement the Template Methods from TAO_Queued_Message
+   */
+  //@{
+  virtual size_t message_length (void) const;
+  virtual int all_data_sent (void) const;
+  virtual void fill_iov (int iovcnt_max, int &iovcnt, iovec iov[]) const;
+  virtual void bytes_transferred (size_t &byte_count);
+  /// @note No reason to believe why this would be called. But have
+  /// it here for the sake of uniformity.
+  virtual TAO_Queued_Message *clone (ACE_Allocator *alloc);
+  virtual void destroy (void);
+  virtual bool is_expired (const ACE_Time_Value &now) const;
+  //@}
+
+protected:
+  /// Constructor
+  /**
+   * @param buf The buffer that needs to be sent on the wire. The
+   *            buffer will be owned by this class. The buffer will be
+   *            deleted when the destructor is called and hence the
+   *            buffer should always come off the heap!
+   *
+   * @param size The size of the buffer <buf> that is being handed
+   *             over.
+   *
+   * @param abs_timeout The time after which this  message should be expired.
+   *
+   * @param alloc Allocator used for creating <this> object.
+   */
+  TAO_Asynch_Queued_Message (char *buf,
+                             TAO_ORB_Core *oc,
+                             size_t size,
+                             const ACE_Time_Value &abs_timeout,
+                             ACE_Allocator *alloc = 0);
+private:
+  /// The number of bytes in the buffer
+  const size_t size_;
+
+  /// The offset in the buffer
+  /**
+   * Data up to @c offset has been sent already, only the
+   * [offset_,size_) range remains to be sent.
+   */
+  size_t offset_;
+
+  /// The buffer containing the complete message.
+  char *buffer_;
+
+  // Expiration time
+  ACE_Time_Value abs_timeout_;
+
+};
+
+TAO_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+#endif  /* TAO_ASYNCH_QUEUED_MESSAGE_H */