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diff --git a/src/reaper.hpp b/src/reaper.hpp
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+/*
+    Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser 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
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_REAPER_HPP_INCLUDED__
+#define __ZMQ_REAPER_HPP_INCLUDED__
+
+#include "object.hpp"
+#include "mailbox.hpp"
+#include "poller.hpp"
+#include "i_poll_events.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class socket_base_t;
+
+    class reaper_t : public object_t, public i_poll_events
+    {
+    public:
+
+        reaper_t (zmq::ctx_t *ctx_, uint32_t tid_);
+        ~reaper_t ();
+
+        mailbox_t *get_mailbox ();
+
+        void start ();
+        void stop ();
+
+        //  i_poll_events implementation.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+    private:
+
+        //  Command handlers.
+        void process_stop ();
+        void process_reap (zmq::socket_base_t *socket_);
+        void process_reaped ();
+
+        //  Reaper thread accesses incoming commands via this mailbox.
+        mailbox_t mailbox;
+
+        //  Handle associated with mailbox' file descriptor.
+        poller_t::handle_t mailbox_handle;
+
+        //  I/O multiplexing is performed using a poller object.
+        poller_t *poller;
+
+        //  Number of sockets being reaped at the moment.
+        int sockets;
+
+        //  If true, we were already asked to terminate.
+        bool terminating;
+
+        reaper_t (const reaper_t&);
+        const reaper_t &operator = (const reaper_t&);
+
+#ifdef HAVE_FORK
+        // the process that created this context. Used to detect forking.
+        pid_t pid;
+#endif
+    };
+
+}
+
+#endif