--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/servlib/prophet/Ack.h	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,113 @@
+/*
+ *    Copyright 2007 Baylor University
+ * 
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ * 
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#ifndef _PROPHET_ACK_H_
+#define _PROPHET_ACK_H_
+
+#include <string>
+#include <oasys/oasys-config.h>
+#include <oasys/compat/inttypes.h>
+
+namespace prophet
+{
+
+/**
+ * A Prophet ACK signals successful delivery of a Bundle to its
+ * final destination within the Prophet region (whether actual
+ * bundle destination or gateway to non-Prophet region).
+ */
+class Ack
+{
+public:
+    /**
+     * Default constructor
+     */
+    Ack()
+        : dest_id_(""), cts_(0), seq_(0), ets_(0) {}
+
+    /**
+     * Constructor
+     */
+    Ack(std::string endpoint_id,
+        u_int32_t cts = 0,
+        u_int32_t seq = 0,
+        u_int32_t ets = 0)
+        : dest_id_(endpoint_id), cts_(cts),
+          seq_(seq), ets_(ets) {}
+
+    /**
+     * Copy constructor
+     */
+    Ack(const Ack& a)
+        : dest_id_(a.dest_id_), cts_(a.cts_),
+          seq_(a.seq_), ets_(a.ets_) {}
+
+    ///@{ Accessors
+    std::string dest_id() const { return dest_id_; }
+    u_int32_t cts() const { return cts_; }
+    u_int32_t seq() const { return seq_; }
+    u_int32_t ets() const { return ets_; }
+    ///@}
+
+    ///@{ Mutators
+    void set_dest_id ( const std::string& dest_id )
+    {
+        dest_id_.assign(dest_id);
+    }
+    void set_cts (u_int32_t cts) { cts_ = cts; }
+    void set_seq (u_int32_t seq) { seq_ = seq; }
+    void set_ets (u_int32_t ets) { ets_ = ets; }
+    ///@}
+
+    /**
+     * Comparison operator for STL sort
+     */
+    bool operator< ( const Ack& a ) const
+    {
+        int comp = dest_id_.compare(a.dest_id_);
+        if (comp == 0)
+        {
+            if (cts_ == a.cts_)
+                return seq_ < a.seq_;
+            else
+                return (cts_ < a.cts_);
+        }
+        return (comp < 0);
+    }
+
+    /**
+     * Assignment operator
+     */
+    Ack& operator= ( const Ack& a ) 
+    {
+        dest_id_.assign(a.dest_id_);
+        cts_ = a.cts_;
+        seq_ = a.seq_;
+        ets_ = a.ets_;
+        return *this;
+    }
+
+protected:
+    std::string dest_id_;
+    u_int32_t cts_;
+    u_int32_t seq_;
+    u_int32_t ets_;
+    
+}; // class Ack
+
+}; // namespace prophet
+
+#endif // _PROPHET_ACK_H_