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+// -*- 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 "Queued_Message.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+/**
+ * @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.
+ *
+ * @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);
+
+ /// Destructor
+ virtual ~TAO_Asynch_Queued_Message (void);
+
+ /** 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 int bytes_transferred (size_t &byte_count);
+ virtual void destroy (void);
+ //@}
+
+private:
+ /// The number of bytes in the buffer
+ 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_;
+};
+
+#include "ace/post.h"
+#endif /* TAO_ASYNCH_QUEUED_MESSAGE_H */