1 /* 2 Copyright (c) 2007-2011 iMatix Corporation 3 Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file 4 5 This file is part of 0MQ. 6 7 0MQ is free software; you can redistribute it and/or modify it under 8 the terms of the GNU Lesser General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 0MQ is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU Lesser General Public License for more details. 16 17 You should have received a copy of the GNU Lesser General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #ifndef __ZMQ_I_INOUT_HPP_INCLUDED__ 22 #define __ZMQ_I_INOUT_HPP_INCLUDED__ 23 24 #include "../include/zmq.h" 25 26 #include "stdint.hpp" 27 28 namespace zmq 29 { 30 31 struct i_inout 32 { ~i_inoutzmq::i_inout33 virtual ~i_inout () {} 34 35 // Engine asks for a message to send to the network. 36 virtual bool read (::zmq_msg_t *msg_) = 0; 37 38 // Engine received message from the network and sends it further on. 39 virtual bool write (::zmq_msg_t *msg_) = 0; 40 41 // Flush all the previously written messages. 42 virtual void flush () = 0; 43 44 // Engine is dead. Drop all the references to it. 45 virtual void detach () = 0; 46 }; 47 48 } 49 50 #endif 51