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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.
+ */
+
+#ifndef WorkerThreadableWebSocketChannel_h
+#define WorkerThreadableWebSocketChannel_h
+
+#if ENABLE(WEB_SOCKETS) && ENABLE(WORKERS)
+
+#include "PlatformString.h"
+#include "ThreadableWebSocketChannel.h"
+#include "WebSocketChannelClient.h"
+
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+#include <wtf/Threading.h>
+
+namespace WebCore {
+
+class KURL;
+class ScriptExecutionContext;
+class ThreadableWebSocketChannelClientWrapper;
+class WorkerContext;
+class WorkerLoaderProxy;
+class WorkerRunLoop;
+
+class WorkerThreadableWebSocketChannel : public RefCounted<WorkerThreadableWebSocketChannel>, public ThreadableWebSocketChannel {
+public:
+ static PassRefPtr<ThreadableWebSocketChannel> create(WorkerContext* workerContext, WebSocketChannelClient* client, const String& taskMode, const KURL& url, const String& protocol)
+ {
+ return adoptRef(new WorkerThreadableWebSocketChannel(workerContext, client, taskMode, url, protocol));
+ }
+ virtual ~WorkerThreadableWebSocketChannel();
+
+ virtual void connect();
+ virtual bool send(const String& message);
+ virtual unsigned long bufferedAmount() const;
+ virtual void close();
+ virtual void disconnect(); // Will suppress didClose().
+
+ using RefCounted<WorkerThreadableWebSocketChannel>::ref;
+ using RefCounted<WorkerThreadableWebSocketChannel>::deref;
+
+protected:
+ virtual void refThreadableWebSocketChannel() { ref(); }
+ virtual void derefThreadableWebSocketChannel() { deref(); }
+
+private:
+ // Generated by the bridge. The Peer and its bridge should have identical
+ // lifetimes.
+ class Peer : public WebSocketChannelClient, public Noncopyable {
+ public:
+ static Peer* create(RefPtr<ThreadableWebSocketChannelClientWrapper> clientWrapper, WorkerLoaderProxy& loaderProxy, ScriptExecutionContext* context, const String& taskMode, const KURL& url, const String& protocol)
+ {
+ return new Peer(clientWrapper, loaderProxy, context, taskMode, url, protocol);
+ }
+ ~Peer();
+
+ void connect();
+ void send(const String& message);
+ void bufferedAmount();
+ void close();
+ void disconnect();
+
+ virtual void didConnect();
+ virtual void didReceiveMessage(const String& message);
+ virtual void didClose();
+
+ private:
+ Peer(RefPtr<ThreadableWebSocketChannelClientWrapper>, WorkerLoaderProxy&, ScriptExecutionContext*, const String& taskMode, const KURL&, const String& protocol);
+
+ RefPtr<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
+ WorkerLoaderProxy& m_loaderProxy;
+ RefPtr<ThreadableWebSocketChannel> m_mainWebSocketChannel;
+ String m_taskMode;
+ };
+
+ // Bridge for Peer. Running on the worker thread.
+ class Bridge : public RefCounted<Bridge> {
+ public:
+ Bridge(PassRefPtr<ThreadableWebSocketChannelClientWrapper>, PassRefPtr<WorkerContext>, const String& taskMode, const KURL&, const String& protocol);
+ ~Bridge();
+ void connect();
+ bool send(const String& message);
+ unsigned long bufferedAmount();
+ void close();
+ void disconnect();
+
+ using RefCounted<Bridge>::ref;
+ using RefCounted<Bridge>::deref;
+
+ private:
+ static void setWebSocketChannel(ScriptExecutionContext*, Bridge* thisPtr, Peer*, RefPtr<ThreadableWebSocketChannelClientWrapper>);
+
+ // Executed on the main thread to create a Peer for this bridge.
+ static void mainThreadCreateWebSocketChannel(ScriptExecutionContext*, Bridge* thisPtr, RefPtr<ThreadableWebSocketChannelClientWrapper>, const String& taskMode, const KURL&, const String& protocol);
+
+ // Executed on the worker context's thread.
+ void clearClientWrapper();
+
+ void setMethodNotCompleted();
+ void waitForMethodCompletion();
+
+ RefPtr<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
+ RefPtr<WorkerContext> m_workerContext;
+ WorkerLoaderProxy& m_loaderProxy;
+ String m_taskMode;
+ Peer* m_peer;
+ };
+
+ WorkerThreadableWebSocketChannel(WorkerContext*, WebSocketChannelClient*, const String& taskMode, const KURL&, const String& protocol);
+
+ static void mainThreadConnect(ScriptExecutionContext*, Peer*);
+ static void mainThreadSend(ScriptExecutionContext*, Peer*, const String& message);
+ static void mainThreadBufferedAmount(ScriptExecutionContext*, Peer*);
+ static void mainThreadClose(ScriptExecutionContext*, Peer*);
+ static void mainThreadDestroy(ScriptExecutionContext*, Peer*);
+
+ RefPtr<WorkerContext> m_workerContext;
+ RefPtr<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
+ RefPtr<Bridge> m_bridge;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_SOCKETS)
+
+#endif // WorkerThreadableWebSocketChannel_h