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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 __ZMQ_IO_OBJECT_HPP_INCLUDED__
+#define __ZMQ_IO_OBJECT_HPP_INCLUDED__
+
+#include "object.hpp"
+
+namespace zmq
+{
+
+ class io_object_t : public object_t
+ {
+ public:
+
+ // I/O object will live in the thread inherited from the parent.
+ // However, it's lifetime is managed by the owner.
+ io_object_t (object_t *parent_, object_t *owner_);
+
+ protected:
+
+ // Ask owner socket to terminate this I/O object. This may not happen
+ void term ();
+
+ // I/O object destroys itself. No point in allowing others to invoke
+ // the destructor. At the same time, it has to be virtual so that
+ // generic io_object deallocation mechanism destroys specific type
+ // of I/O object correctly.
+ virtual ~io_object_t ();
+
+ private:
+
+ // Handlers for incoming commands.
+ void process_term ();
+
+ // Socket owning this I/O object. It is responsible for destroying
+ // it when it's being closed.
+ object_t *owner;
+
+ io_object_t (const io_object_t&);
+ void operator = (const io_object_t&);
+ };
+
+}
+
+#endif