ThreadableWebSocketChannelClientWrapper.cpp   [plain text]


/*
 * Copyright (C) 2011 Google Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#if ENABLE(WEB_SOCKETS)
#include "ThreadableWebSocketChannelClientWrapper.h"

#include "WebSocketChannelClient.h"
#include <wtf/PassRefPtr.h>

namespace WebCore {

ThreadableWebSocketChannelClientWrapper::ThreadableWebSocketChannelClientWrapper(WebSocketChannelClient* client)
    : m_client(client)
    , m_syncMethodDone(false)
    , m_sent(false)
    , m_bufferedAmount(0)
    , m_suspended(false)
    , m_pendingConnected(false)
    , m_pendingClosed(false)
{
}

PassRefPtr<ThreadableWebSocketChannelClientWrapper> ThreadableWebSocketChannelClientWrapper::create(WebSocketChannelClient* client)
{
    return adoptRef(new ThreadableWebSocketChannelClientWrapper(client));
}

void ThreadableWebSocketChannelClientWrapper::clearSyncMethodDone()
{
    m_syncMethodDone = false;
}

void ThreadableWebSocketChannelClientWrapper::setSyncMethodDone()
{
    m_syncMethodDone = true;
}

bool ThreadableWebSocketChannelClientWrapper::syncMethodDone() const
{
    return m_syncMethodDone;
}

bool ThreadableWebSocketChannelClientWrapper::sent() const
{
    return m_sent;
}

void ThreadableWebSocketChannelClientWrapper::setSent(bool sent)
{
    m_sent = sent;
    m_syncMethodDone = true;
}

unsigned long ThreadableWebSocketChannelClientWrapper::bufferedAmount() const
{
    return m_bufferedAmount;
}

void ThreadableWebSocketChannelClientWrapper::setBufferedAmount(unsigned long bufferedAmount)
{
    m_bufferedAmount = bufferedAmount;
    m_syncMethodDone = true;
}

void ThreadableWebSocketChannelClientWrapper::clearClient()
{
    m_client = 0;
}

void ThreadableWebSocketChannelClientWrapper::didConnect()
{
    m_pendingConnected = true;
    if (!m_suspended)
        processPendingEvents();
}

void ThreadableWebSocketChannelClientWrapper::didReceiveMessage(const String& message)
{
    m_pendingMessages.append(message);
    if (!m_suspended)
        processPendingEvents();
}

void ThreadableWebSocketChannelClientWrapper::didClose(unsigned long unhandledBufferedAmount)
{
    m_pendingClosed = true;
    m_bufferedAmount = unhandledBufferedAmount;
    if (!m_suspended)
        processPendingEvents();
}

void ThreadableWebSocketChannelClientWrapper::suspend()
{
    m_suspended = true;
}

void ThreadableWebSocketChannelClientWrapper::resume()
{
    m_suspended = false;
    processPendingEvents();
}

void ThreadableWebSocketChannelClientWrapper::processPendingEvents()
{
    ASSERT(!m_suspended);
    if (m_pendingConnected) {
        m_pendingConnected = false;
        if (m_client)
            m_client->didConnect();
    }

    Vector<String> messages;
    messages.swap(m_pendingMessages);
    for (Vector<String>::const_iterator iter = messages.begin(); iter != messages.end(); ++iter) {
        if (m_client)
            m_client->didReceiveMessage(*iter);
    }

    if (m_pendingClosed) {
        m_pendingClosed = false;
        if (m_client)
            m_client->didClose(m_bufferedAmount);
    }
}

} // namespace WebCore

#endif