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61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*
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Copyright (c) 2007-2014 Contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ 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 as published by
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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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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public 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_I_ENGINE_HPP_INCLUDED__
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#define __ZMQ_I_ENGINE_HPP_INCLUDED__
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#include "fd.hpp"
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namespace zmq
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{
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class io_thread_t;
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// Abstract interface to be implemented by various engines.
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struct i_engine
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{
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virtual ~i_engine () {}
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// Plug the engine to the session.
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virtual void plug (zmq::io_thread_t *io_thread_,
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class session_base_t *session_) = 0;
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// Terminate and deallocate the engine. Note that 'detached'
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// events are not fired on termination.
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virtual void terminate () = 0;
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// This method is called by the session to signalise that more
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// messages can be written to the pipe.
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virtual void restart_input () = 0;
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// This method is called by the session to signalise that there
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// are messages to send available.
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virtual void restart_output () = 0;
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virtual void zap_msg_available () = 0;
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// provide a way to link from engine to file descriptor
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virtual fd_t get_assoc_fd () { return retired_fd;};
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};
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}
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#endif
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