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/*
Copyright (c) 2007-2013 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_DECODER_HPP_INCLUDED__
#define __ZMQ_I_DECODER_HPP_INCLUDED__
#include "stdint.hpp"
namespace zmq
{
class msg_t;
// Interface to be implemented by message decoder.
class i_decoder
{
public:
virtual ~i_decoder () {}
virtual void get_buffer (unsigned char **data_, size_t *size_) = 0;
// Decodes data pointed to by data_.
// When a message is decoded, 1 is returned.
// When the decoder needs more data, 0 is returnd.
// On error, -1 is returned and errno is set accordingly.
virtual int decode (const unsigned char *data_, size_t size_,
size_t &processed) = 0;
virtual msg_t *msg () = 0;
};
}
#endif
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