2012-10-29 00:03:36 -07:00
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/*
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2013-03-12 13:17:00 +01:00
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Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
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2012-10-29 00:03:36 -07:00
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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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#include <stdlib.h>
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#include <string.h>
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#include "platform.hpp"
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#ifdef ZMQ_HAVE_WINDOWS
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#include "windows.hpp"
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#endif
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#include "raw_decoder.hpp"
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#include "likely.hpp"
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#include "wire.hpp"
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#include "err.hpp"
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zmq::raw_decoder_t::raw_decoder_t (size_t bufsize_,
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int64_t maxmsgsize_, i_msg_sink *msg_sink_) :
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decoder_base_t <raw_decoder_t> (bufsize_),
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msg_sink (msg_sink_),
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maxmsgsize (maxmsgsize_)
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{
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int rc = in_progress.init ();
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errno_assert (rc == 0);
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}
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zmq::raw_decoder_t::~raw_decoder_t ()
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{
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int rc = in_progress.close ();
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errno_assert (rc == 0);
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}
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void zmq::raw_decoder_t::set_msg_sink (i_msg_sink *msg_sink_)
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{
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msg_sink = msg_sink_;
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}
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2012-11-10 23:05:10 +01:00
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bool zmq::raw_decoder_t::stalled ()
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2012-10-29 00:03:36 -07:00
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{
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return false;
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}
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bool zmq::raw_decoder_t::message_ready_size (size_t msg_sz)
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{
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int rc = in_progress.init_size (msg_sz);
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if (rc != 0) {
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errno_assert (errno == ENOMEM);
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rc = in_progress.init ();
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errno_assert (rc == 0);
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decoding_error ();
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return false;
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}
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next_step (in_progress.data (), in_progress.size (),
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&raw_decoder_t::raw_message_ready);
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return true;
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}
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bool zmq::raw_decoder_t::raw_message_ready ()
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{
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zmq_assert (in_progress.size ());
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// Message is completely read. Push it further and start reading
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// new message. (in_progress is a 0-byte message after this point.)
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if (unlikely (!msg_sink))
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return false;
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int rc = msg_sink->push_msg (&in_progress);
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if (unlikely (rc != 0)) {
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if (errno != EAGAIN)
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decoding_error ();
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return false;
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}
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// NOTE: This is just to break out of process_buffer
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// raw_message_ready should never get called in state machine w/o
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// message_ready_size from stream_engine.
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next_step (in_progress.data (), 1,
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2012-10-30 12:18:13 +01:00
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&raw_decoder_t::raw_message_ready);
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2012-10-29 00:03:36 -07:00
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return true;
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}
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