2012-09-04 19:44:20 +02:00
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/*
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Copyright (c) 2007-2012 iMatix Corporation
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Copyright (c) 2007-2012 Other contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ZMQ_I_ENCODER_HPP_INCLUDED__
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#define __ZMQ_I_ENCODER_HPP_INCLUDED__
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2012-09-26 16:06:20 +04:00
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#include "stdint.hpp"
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2012-09-04 19:44:20 +02:00
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namespace zmq
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{
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// Forward declaration
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class i_msg_source;
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// Interface to be implemented by message encoder.
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struct i_encoder
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{
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virtual ~i_encoder () {}
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// Set message producer.
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virtual void set_msg_source (i_msg_source *msg_source_) = 0;
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// The function returns a batch of binary data. The data
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// are filled to a supplied buffer. If no buffer is supplied (data_
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// is NULL) encoder will provide buffer of its own.
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// If offset is not NULL, it is filled by offset of the first message
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// in the batch.If there's no beginning of a message in the batch,
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// offset is set to -1.
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virtual void get_data (unsigned char **data_, size_t *size_,
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int *offset_ = NULL) = 0;
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};
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}
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#endif
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