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diff --git a/src/zmq_engine.hpp b/src/zmq_engine.hpp
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+++ b/src/zmq_engine.hpp
@@ -0,0 +1,86 @@
+/*
+    Copyright (c) 2007-2010 iMatix Corporation
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_ZMQ_ENGINE_HPP_INCLUDED__
+#define __ZMQ_ZMQ_ENGINE_HPP_INCLUDED__
+
+#include <stddef.h>
+
+#include <string>
+
+#include "i_engine.hpp"
+#include "io_object.hpp"
+#include "tcp_socket.hpp"
+#include "zmq_encoder.hpp"
+#include "zmq_decoder.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+
+    class zmq_engine_t : public io_object_t, public i_engine
+    {
+    public:
+
+        zmq_engine_t (class io_thread_t *parent_, fd_t fd_,
+            const options_t &options_, bool reconnect_, 
+            const char *protocol_, const char *address_);
+        ~zmq_engine_t ();
+
+        //  i_engine interface implementation.
+        void plug (struct i_inout *inout_);
+        void unplug ();
+        void revive ();
+        void resume_input ();
+
+        //  i_poll_events interface implementation.
+        void in_event ();
+        void out_event ();
+
+    private:
+
+        //  Function to handle network disconnections.
+        void error ();
+
+        tcp_socket_t tcp_socket;
+        handle_t handle;
+
+        unsigned char *inpos;
+        size_t insize;
+        zmq_decoder_t decoder;
+
+        unsigned char *outpos;
+        size_t outsize;
+        zmq_encoder_t encoder;
+
+        i_inout *inout;
+
+        options_t options;
+
+        bool reconnect;
+        std::string protocol;
+        std::string address;
+
+        zmq_engine_t (const zmq_engine_t&);
+        void operator = (const zmq_engine_t&);
+    };
+
+}
+
+#endif