i_poll_events.hpp

/*
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_POLL_EVENTS_HPP_INCLUDED__
#define __ZMQ_I_POLL_EVENTS_HPP_INCLUDED__
 
namespace zmq
{
 
    // Virtual interface to be exposed by object that want to be notified
    // about events on file descriptors.
 
    struct i_poll_events
    {
        virtual ~i_poll_events () {};
 
        // Called by I/O thread when file descriptor is ready for reading.
        virtual void in_event () = 0;
 
        // Called by I/O thread when file descriptor is ready for writing.
        virtual void out_event () = 0;
 
        // Called when timer expires.
        virtual void timer_event () = 0;
    };
 
}
 
#endif