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-rw-r--r--src/pipe_writer.cpp120
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diff --git a/src/pipe_writer.cpp b/src/pipe_writer.cpp
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--- a/src/pipe_writer.cpp
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-/*
- Copyright (c) 2007-2009 FastMQ Inc.
-
- This file is part of 0MQ.
-
- 0MQ is free software; you can redistribute it and/or modify it under
- the terms of the Lesser GNU 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
- Lesser GNU General Public License for more details.
-
- You should have received a copy of the Lesser GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "../include/zmq.h"
-
-#include "pipe_writer.hpp"
-#include "pipe.hpp"
-#include "i_demux.hpp"
-
-zmq::pipe_writer_t::pipe_writer_t (object_t *parent_, pipe_t *pipe_,
- object_t *peer_, uint64_t hwm_, uint64_t lwm_) :
- object_t (parent_),
- pipe (pipe_),
- peer (peer_),
- demux (NULL),
- index (-1),
- hwm (hwm_),
- lwm (lwm_),
- head (0),
- tail (0)
-{
-}
-
-zmq::pipe_writer_t::~pipe_writer_t ()
-{
-}
-
-void zmq::pipe_writer_t::set_demux (i_demux *demux_)
-{
- demux = demux_;
-}
-
-void zmq::pipe_writer_t::set_index (int index_)
-{
- index = index_;
-}
-
-int zmq::pipe_writer_t::get_index ()
-{
- return index;
-}
-
-bool zmq::pipe_writer_t::write (zmq_msg *msg_)
-{
- size_t msg_size = zmq_msg_size (msg_);
-
- // If message won't fit into the in-memory pipe, there's no way
- // to pass it further.
- // TODO: It should be discarded and 'oversized' notification should be
- // placed into the pipe.
- zmq_assert (!hwm || msg_size <= hwm);
-
- // If there's not enough space in the pipe at the moment, return false.
- if (hwm && tail + msg_size - head > hwm)
- return false;
-
- // Write the message to the pipe and adjust tail position.
- pipe->write (*msg_);
- flush ();
- tail += msg_size;
-
- return true;
-}
-
-void zmq::pipe_writer_t::flush ()
-{
- if (!pipe->flush ())
- send_tail (peer, tail);
-}
-
-void zmq::pipe_writer_t::process_head (uint64_t bytes_)
-{
- head = bytes_;
-}
-
-void zmq::pipe_writer_t::terminate ()
-{
- // Disconnect from the associated demux.
- if (demux) {
- demux->detach_pipe (this);
- demux = NULL;
- }
-
- // Push the delimiter to the pipe. Delimiter is a notification for pipe
- // reader that there will be no more messages in the pipe.
- zmq_msg delimiter;
- delimiter.content = (zmq_msg_content*) ZMQ_DELIMITER;
- delimiter.shared = false;
- delimiter.vsm_size = 0;
- pipe->write (delimiter);
- flush ();
-}
-
-void zmq::pipe_writer_t::process_terminate ()
-{
- // Disconnect from the associated demux.
- if (demux) {
- demux->detach_pipe (this);
- demux = NULL;
- }
-
- // Send termination acknowledgement to the pipe reader.
- send_terminate_ack (peer);
-}