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84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/*
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Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ZMQ_IO_OBJECT_HPP_INCLUDED__
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#define __ZMQ_IO_OBJECT_HPP_INCLUDED__
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#include <stddef.h>
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#include "stdint.hpp"
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#include "poller.hpp"
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#include "i_poll_events.hpp"
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namespace zmq
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{
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class io_thread_t;
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// Simple base class for objects that live in I/O threads.
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// It makes communication with the poller object easier and
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// makes defining unneeded event handlers unnecessary.
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class io_object_t : public i_poll_events
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{
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public:
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io_object_t (zmq::io_thread_t *io_thread_ = NULL);
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~io_object_t () ZMQ_OVERRIDE;
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// When migrating an object from one I/O thread to another, first
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// unplug it, then migrate it, then plug it to the new thread.
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void plug (zmq::io_thread_t *io_thread_);
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void unplug ();
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protected:
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typedef poller_t::handle_t handle_t;
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// Methods to access underlying poller object.
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handle_t add_fd (fd_t fd_);
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void rm_fd (handle_t handle_);
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void set_pollin (handle_t handle_);
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void reset_pollin (handle_t handle_);
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void set_pollout (handle_t handle_);
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void reset_pollout (handle_t handle_);
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void add_timer (int timeout_, int id_);
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void cancel_timer (int id_);
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// i_poll_events interface implementation.
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void in_event () ZMQ_OVERRIDE;
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void out_event () ZMQ_OVERRIDE;
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void timer_event (int id_) ZMQ_OVERRIDE;
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private:
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poller_t *_poller;
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ZMQ_NON_COPYABLE_NOR_MOVABLE (io_object_t)
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};
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}
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#endif
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