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/*
Copyright (c) 2007-2012 iMatix Corporation
Copyright (c) 2007-2012 Other contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ZMQ_I_MSG_SOURCE_HPP_INCLUDED__
#define __ZMQ_I_MSG_SOURCE_HPP_INCLUDED__
namespace zmq
{
// Forward declaration
class msg_t;
// Interface to be implemented by message source.
struct i_msg_source
{
virtual ~i_msg_source () {}
// Fetch a message. Returns 0 if successful; -1 otherwise.
// The caller is responsible for freeing the message when no
// longer used.
virtual int pull_msg (msg_t *msg_) = 0;
};
}
#endif
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