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diff --git a/src/connecter.hpp b/src/connecter.hpp
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+/*
+    Copyright (c) 2007-2009 FastMQ Inc.
+
+    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 __ZS_CONNECTER_HPP_INCLUDED__
+#define __ZS_CONNECTER_HPP_INCLUDED__
+
+#include <string>
+
+#include "../include/zs.h"
+
+#include "i_poller.hpp"
+#include "io_object.hpp"
+#include "i_poll_events.hpp"
+#include "i_session.hpp"
+#include "tcp_connecter.hpp"
+
+namespace zs
+{
+
+    class connecter_t : public io_object_t, public i_poll_events,
+        public i_session
+    {
+    public:
+
+        connecter_t (class io_thread_t *thread_, const char *addr_,
+            class session_t *session_);
+
+        void terminate ();
+        void shutdown ();
+
+        void process_reg (class simple_semaphore_t *smph_);
+        void process_unreg (class simple_semaphore_t *smph_);
+
+        //  i_poll_events implementation.
+        void in_event ();
+        void out_event ();
+        void timer_event ();
+
+        //  i_session implementation
+        void set_engine (struct i_engine *engine_);
+        //  void shutdown ();
+        bool read (struct zs_msg *msg_);
+        bool write (struct zs_msg *msg_);
+        void flush ();
+
+    private:
+
+        //  Clean-up.
+        ~connecter_t ();
+
+         enum {
+             idle,
+             waiting,
+             connecting,
+             sending
+         } state;
+
+        //  Cached pointer to the poller.
+        struct i_poller *poller;
+
+        //  Handle of the connecting socket.
+        handle_t handle;
+
+        //  Associated session. It lives in the same I/O thread.
+        class session_t *session;
+
+        //  Address to connect to.
+        std::string addr;
+
+        //  Identity of the connection.
+        std::string identity;
+
+        tcp_connecter_t tcp_connecter;
+
+        struct i_engine *engine;
+
+        connecter_t (const connecter_t&);
+        void operator = (const connecter_t&);
+    };
+
+}
+
+#endif