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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/>.
*/
#include "encoder.hpp"
#include "v1_encoder.hpp"
#include "likely.hpp"
#include "wire.hpp"
zmq::v1_encoder_t::v1_encoder_t (size_t bufsize_) :
encoder_base_t <v1_encoder_t> (bufsize_)
{
// Write 0 bytes to the batch and go to message_ready state.
next_step (NULL, 0, &v1_encoder_t::message_ready, true);
}
zmq::v1_encoder_t::~v1_encoder_t ()
{
}
void zmq::v1_encoder_t::size_ready ()
{
// Write message body into the buffer.
next_step (in_progress->data (), in_progress->size (),
&v1_encoder_t::message_ready, true);
}
void zmq::v1_encoder_t::message_ready ()
{
// Get the message size.
size_t size = in_progress->size ();
// Account for the 'flags' byte.
size++;
// For messages less than 255 bytes long, write one byte of message size.
// For longer messages write 0xff escape character followed by 8-byte
// message size. In both cases 'flags' field follows.
if (size < 255) {
tmpbuf [0] = (unsigned char) size;
tmpbuf [1] = (in_progress->flags () & msg_t::more);
next_step (tmpbuf, 2, &v1_encoder_t::size_ready, false);
}
else {
tmpbuf [0] = 0xff;
put_uint64 (tmpbuf + 1, size);
tmpbuf [9] = (in_progress->flags () & msg_t::more);
next_step (tmpbuf, 10, &v1_encoder_t::size_ready, false);
}
}
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