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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_I_MUX_HPP_INCLUDED__
#define __ZMQ_I_MUX_HPP_INCLUDED__
namespace zmq
{
struct i_mux
{
// Attaches mux to a particular session.
virtual void set_session (class session_t *session_) = 0;
// To be called when the whole infrastrucure
// is being closed (zmq_term).
virtual void shutdown () = 0;
// To be called when session is being closed.
virtual void terminate () = 0;
// Adds new pipe to the mux to send messages to.
virtual void attach_pipe (class pipe_reader_t *pipe_) = 0;
// Removes pipe from the mux.
virtual void detach_pipe (class pipe_reader_t *pipe_) = 0;
// Returns true if there's no pipe attached.
virtual bool empty () = 0;
// Shifts the pipe from active to passive state and vice versa.
// TODO: Check whether state transitions cannot be done by
// mux object itself without a need for external APIs.
virtual void deactivate (class pipe_reader_t *pipe_) = 0;
virtual void reactivate (class pipe_reader_t *pipe_) = 0;
// Receives a message. Returns false when there is no message
// to receive.
virtual bool recv (struct zmq_msg *msg_) = 0;
};
}
#endif
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