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/*
Copyright (c) 2007-2010 iMatix Corporation
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_I_ENGINE_HPP_INCLUDED__
#define __ZMQ_I_ENGINE_HPP_INCLUDED__
#include <stddef.h>
#include "blob.hpp"
namespace zmq
{
struct i_engine
{
virtual ~i_engine () {}
// Plug the engine to the session.
virtual void plug (struct i_inout *inout_) = 0;
// Unplug the engine from the session.
virtual void unplug () = 0;
// This method is called by the session to signalise that there
// are messages to send available.
virtual void revive () = 0;
// Start tracing the message route. Engine should add the identity
// supplied to all inbound messages and trim identity from all the
// outbound messages.
virtual void traceroute (const blob_t &identity_) = 0;
};
}
#endif
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