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-rw-r--r--WebCore/websockets/WorkerThreadableWebSocketChannel.cpp362
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diff --git a/WebCore/websockets/WorkerThreadableWebSocketChannel.cpp b/WebCore/websockets/WorkerThreadableWebSocketChannel.cpp
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+/*
+ * Copyright (C) 2009, 2010 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) && ENABLE(WORKERS)
+
+#include "WorkerThreadableWebSocketChannel.h"
+
+#include "GenericWorkerTask.h"
+#include "PlatformString.h"
+#include "ScriptExecutionContext.h"
+#include "ThreadableWebSocketChannelClientWrapper.h"
+#include "WebSocketChannel.h"
+#include "WebSocketChannelClient.h"
+#include "WorkerContext.h"
+#include "WorkerLoaderProxy.h"
+#include "WorkerRunLoop.h"
+#include "WorkerThread.h"
+
+#include <wtf/PassRefPtr.h>
+
+namespace WebCore {
+
+WorkerThreadableWebSocketChannel::WorkerThreadableWebSocketChannel(WorkerContext* context, WebSocketChannelClient* client, const String& taskMode, const KURL& url, const String& protocol)
+ : m_workerContext(context)
+ , m_workerClientWrapper(ThreadableWebSocketChannelClientWrapper::create(client))
+ , m_bridge(new Bridge(m_workerClientWrapper, m_workerContext, taskMode, url, protocol))
+{
+}
+
+WorkerThreadableWebSocketChannel::~WorkerThreadableWebSocketChannel()
+{
+ if (m_bridge)
+ m_bridge->disconnect();
+}
+
+void WorkerThreadableWebSocketChannel::connect()
+{
+ if (m_bridge)
+ m_bridge->connect();
+}
+
+bool WorkerThreadableWebSocketChannel::send(const String& message)
+{
+ if (!m_bridge)
+ return false;
+ return m_bridge->send(message);
+}
+
+unsigned long WorkerThreadableWebSocketChannel::bufferedAmount() const
+{
+ if (!m_bridge)
+ return 0;
+ return m_bridge->bufferedAmount();
+}
+
+void WorkerThreadableWebSocketChannel::close()
+{
+ if (!m_bridge)
+ m_bridge->close();
+}
+
+void WorkerThreadableWebSocketChannel::disconnect()
+{
+ m_bridge->disconnect();
+ m_bridge.clear();
+}
+
+WorkerThreadableWebSocketChannel::Peer::Peer(RefPtr<ThreadableWebSocketChannelClientWrapper> clientWrapper, WorkerLoaderProxy& loaderProxy, ScriptExecutionContext* context, const String& taskMode, const KURL& url, const String& protocol)
+ : m_workerClientWrapper(clientWrapper)
+ , m_loaderProxy(loaderProxy)
+ , m_mainWebSocketChannel(WebSocketChannel::create(context, this, url, protocol))
+ , m_taskMode(taskMode)
+{
+ ASSERT(isMainThread());
+}
+
+WorkerThreadableWebSocketChannel::Peer::~Peer()
+{
+ ASSERT(isMainThread());
+ if (m_mainWebSocketChannel)
+ m_mainWebSocketChannel->disconnect();
+}
+
+void WorkerThreadableWebSocketChannel::Peer::connect()
+{
+ ASSERT(isMainThread());
+ if (!m_mainWebSocketChannel)
+ return;
+ m_mainWebSocketChannel->connect();
+}
+
+static void workerContextDidSend(ScriptExecutionContext* context, RefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper, bool sent)
+{
+ ASSERT_UNUSED(context, context->isWorkerContext());
+ workerClientWrapper->setSent(sent);
+}
+
+void WorkerThreadableWebSocketChannel::Peer::send(const String& message)
+{
+ ASSERT(isMainThread());
+ if (!m_mainWebSocketChannel || !m_workerClientWrapper)
+ return;
+ bool sent = m_mainWebSocketChannel->send(message);
+ m_loaderProxy.postTaskForModeToWorkerContext(createCallbackTask(&workerContextDidSend, m_workerClientWrapper, sent), m_taskMode);
+}
+
+static void workerContextDidGetBufferedAmount(ScriptExecutionContext* context, RefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper, unsigned long bufferedAmount)
+{
+ ASSERT_UNUSED(context, context->isWorkerContext());
+ workerClientWrapper->setBufferedAmount(bufferedAmount);
+}
+
+void WorkerThreadableWebSocketChannel::Peer::bufferedAmount()
+{
+ ASSERT(isMainThread());
+ if (!m_mainWebSocketChannel || !m_workerClientWrapper)
+ return;
+ unsigned long bufferedAmount = m_mainWebSocketChannel->bufferedAmount();
+ m_loaderProxy.postTaskForModeToWorkerContext(createCallbackTask(&workerContextDidGetBufferedAmount, m_workerClientWrapper, bufferedAmount), m_taskMode);
+}
+
+void WorkerThreadableWebSocketChannel::Peer::close()
+{
+ ASSERT(isMainThread());
+ if (!m_mainWebSocketChannel)
+ return;
+ m_mainWebSocketChannel->close();
+ m_mainWebSocketChannel = 0;
+}
+
+void WorkerThreadableWebSocketChannel::Peer::disconnect()
+{
+ ASSERT(isMainThread());
+ if (!m_mainWebSocketChannel)
+ return;
+ m_mainWebSocketChannel->disconnect();
+ m_mainWebSocketChannel = 0;
+}
+
+static void workerContextDidConnect(ScriptExecutionContext* context, RefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper)
+{
+ ASSERT_UNUSED(context, context->isWorkerContext());
+ workerClientWrapper->didConnect();
+}
+
+void WorkerThreadableWebSocketChannel::Peer::didConnect()
+{
+ ASSERT(isMainThread());
+ m_loaderProxy.postTaskForModeToWorkerContext(createCallbackTask(&workerContextDidConnect, m_workerClientWrapper), m_taskMode);
+}
+
+static void workerContextDidReceiveMessage(ScriptExecutionContext* context, RefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper, const String& message)
+{
+ ASSERT_UNUSED(context, context->isWorkerContext());
+ workerClientWrapper->didReceiveMessage(message);
+}
+
+void WorkerThreadableWebSocketChannel::Peer::didReceiveMessage(const String& message)
+{
+ ASSERT(isMainThread());
+ m_loaderProxy.postTaskForModeToWorkerContext(createCallbackTask(&workerContextDidReceiveMessage, m_workerClientWrapper, message), m_taskMode);
+}
+
+static void workerContextDidClose(ScriptExecutionContext* context, RefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper)
+{
+ ASSERT_UNUSED(context, context->isWorkerContext());
+ workerClientWrapper->didClose();
+}
+
+void WorkerThreadableWebSocketChannel::Peer::didClose()
+{
+ ASSERT(isMainThread());
+ m_mainWebSocketChannel = 0;
+ m_loaderProxy.postTaskForModeToWorkerContext(createCallbackTask(&workerContextDidClose, m_workerClientWrapper), m_taskMode);
+}
+
+void WorkerThreadableWebSocketChannel::Bridge::setWebSocketChannel(ScriptExecutionContext* context, Bridge* thisPtr, Peer* peer, RefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper)
+{
+ ASSERT_UNUSED(context, context->isWorkerContext());
+ thisPtr->m_peer = peer;
+ workerClientWrapper->setSyncMethodDone();
+}
+
+void WorkerThreadableWebSocketChannel::Bridge::mainThreadCreateWebSocketChannel(ScriptExecutionContext* context, Bridge* thisPtr, RefPtr<ThreadableWebSocketChannelClientWrapper> clientWrapper, const String& taskMode, const KURL& url, const String& protocol)
+{
+ ASSERT(isMainThread());
+ ASSERT_UNUSED(context, context->isDocument());
+
+ Peer* peer = Peer::create(clientWrapper, thisPtr->m_loaderProxy, context, taskMode, url, protocol);
+ thisPtr->m_loaderProxy.postTaskForModeToWorkerContext(createCallbackTask(&Bridge::setWebSocketChannel, thisPtr, peer, clientWrapper), taskMode);
+}
+
+WorkerThreadableWebSocketChannel::Bridge::Bridge(PassRefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper, PassRefPtr<WorkerContext> workerContext, const String& taskMode, const KURL& url, const String& protocol)
+ : m_workerClientWrapper(workerClientWrapper)
+ , m_workerContext(workerContext)
+ , m_loaderProxy(m_workerContext->thread()->workerLoaderProxy())
+ , m_taskMode(taskMode)
+ , m_peer(0)
+{
+ ASSERT(m_workerClientWrapper.get());
+ setMethodNotCompleted();
+ m_loaderProxy.postTaskToLoader(createCallbackTask(&Bridge::mainThreadCreateWebSocketChannel, this, m_workerClientWrapper, m_taskMode, url, protocol));
+ waitForMethodCompletion();
+ ASSERT(m_peer);
+}
+
+WorkerThreadableWebSocketChannel::Bridge::~Bridge()
+{
+ disconnect();
+}
+
+void WorkerThreadableWebSocketChannel::mainThreadConnect(ScriptExecutionContext* context, Peer* peer)
+{
+ ASSERT(isMainThread());
+ ASSERT_UNUSED(context, context->isDocument());
+ ASSERT(peer);
+
+ peer->connect();
+}
+
+void WorkerThreadableWebSocketChannel::Bridge::connect()
+{
+ ASSERT(m_workerClientWrapper);
+ ASSERT(m_peer);
+ m_loaderProxy.postTaskToLoader(createCallbackTask(&WorkerThreadableWebSocketChannel::mainThreadConnect, m_peer));
+}
+
+void WorkerThreadableWebSocketChannel::mainThreadSend(ScriptExecutionContext* context, Peer* peer, const String& message)
+{
+ ASSERT(isMainThread());
+ ASSERT_UNUSED(context, context->isDocument());
+ ASSERT(peer);
+
+ peer->send(message);
+}
+
+bool WorkerThreadableWebSocketChannel::Bridge::send(const String& message)
+{
+ if (!m_workerClientWrapper)
+ return false;
+ ASSERT(m_peer);
+ setMethodNotCompleted();
+ m_loaderProxy.postTaskToLoader(createCallbackTask(&WorkerThreadableWebSocketChannel::mainThreadSend, m_peer, message));
+ waitForMethodCompletion();
+ ThreadableWebSocketChannelClientWrapper* clientWrapper = m_workerClientWrapper.get();
+ return clientWrapper && clientWrapper->sent();
+}
+
+void WorkerThreadableWebSocketChannel::mainThreadBufferedAmount(ScriptExecutionContext* context, Peer* peer)
+{
+ ASSERT(isMainThread());
+ ASSERT_UNUSED(context, context->isDocument());
+ ASSERT(peer);
+
+ peer->bufferedAmount();
+}
+
+unsigned long WorkerThreadableWebSocketChannel::Bridge::bufferedAmount()
+{
+ if (!m_workerClientWrapper)
+ return 0;
+ ASSERT(m_peer);
+ setMethodNotCompleted();
+ m_loaderProxy.postTaskToLoader(createCallbackTask(&WorkerThreadableWebSocketChannel::mainThreadBufferedAmount, m_peer));
+ waitForMethodCompletion();
+ ThreadableWebSocketChannelClientWrapper* clientWrapper = m_workerClientWrapper.get();
+ if (clientWrapper)
+ return clientWrapper->bufferedAmount();
+ return 0;
+}
+
+void WorkerThreadableWebSocketChannel::mainThreadClose(ScriptExecutionContext* context, Peer* peer)
+{
+ ASSERT(isMainThread());
+ ASSERT_UNUSED(context, context->isDocument());
+ ASSERT(peer);
+
+ peer->close();
+}
+
+void WorkerThreadableWebSocketChannel::Bridge::close()
+{
+ ASSERT(m_peer);
+ m_loaderProxy.postTaskToLoader(createCallbackTask(&WorkerThreadableWebSocketChannel::mainThreadClose, m_peer));
+}
+
+void WorkerThreadableWebSocketChannel::mainThreadDestroy(ScriptExecutionContext* context, Peer* peer)
+{
+ ASSERT(isMainThread());
+ ASSERT_UNUSED(context, context->isDocument());
+ ASSERT(peer);
+
+ delete peer;
+}
+
+void WorkerThreadableWebSocketChannel::Bridge::disconnect()
+{
+ clearClientWrapper();
+ if (m_peer) {
+ Peer* peer = m_peer;
+ m_peer = 0;
+ m_loaderProxy.postTaskToLoader(createCallbackTask(&mainThreadDestroy, peer));
+ }
+ m_workerContext = 0;
+}
+
+void WorkerThreadableWebSocketChannel::Bridge::clearClientWrapper()
+{
+ m_workerClientWrapper->clearClient();
+}
+
+void WorkerThreadableWebSocketChannel::Bridge::setMethodNotCompleted()
+{
+ ASSERT(m_workerClientWrapper);
+ m_workerClientWrapper->clearSyncMethodDone();
+}
+
+void WorkerThreadableWebSocketChannel::Bridge::waitForMethodCompletion()
+{
+ if (!m_workerContext)
+ return;
+ WorkerRunLoop& runLoop = m_workerContext->thread()->runLoop();
+ MessageQueueWaitResult result = MessageQueueMessageReceived;
+ ThreadableWebSocketChannelClientWrapper* clientWrapper = m_workerClientWrapper.get();
+ while (clientWrapper && !clientWrapper->syncMethodDone() && result != MessageQueueTerminated) {
+ result = runLoop.runInMode(m_workerContext.get(), m_taskMode);
+ clientWrapper = m_workerClientWrapper.get();
+ }
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_SOCKETS)