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/*
* 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.
*/
#ifndef WorkerThreadableWebSocketChannel_h
#define WorkerThreadableWebSocketChannel_h
#if ENABLE(WEB_SOCKETS) && ENABLE(WORKERS)
#include "ThreadableWebSocketChannel.h"
#include "WebSocketChannelClient.h"
#include "WorkerGlobalScope.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/Threading.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class KURL;
class ScriptExecutionContext;
class ThreadableWebSocketChannelClientWrapper;
class WorkerGlobalScope;
class WorkerLoaderProxy;
class WorkerRunLoop;
class WorkerThreadableWebSocketChannel : public RefCounted<WorkerThreadableWebSocketChannel>, public ThreadableWebSocketChannel {
WTF_MAKE_FAST_ALLOCATED;
public:
static PassRefPtr<ThreadableWebSocketChannel> create(WorkerGlobalScope* workerGlobalScope, WebSocketChannelClient* client, const String& taskMode)
{
return adoptRef(new WorkerThreadableWebSocketChannel(workerGlobalScope, client, taskMode));
}
virtual ~WorkerThreadableWebSocketChannel();
// ThreadableWebSocketChannel functions.
virtual void connect(const KURL&, const String& protocol) OVERRIDE;
virtual String subprotocol() OVERRIDE;
virtual String extensions() OVERRIDE;
virtual ThreadableWebSocketChannel::SendResult send(const String& message) OVERRIDE;
virtual ThreadableWebSocketChannel::SendResult send(const ArrayBuffer&, unsigned byteOffset, unsigned byteLength) OVERRIDE;
virtual ThreadableWebSocketChannel::SendResult send(const Blob&) OVERRIDE;
virtual unsigned long bufferedAmount() const OVERRIDE;
virtual void close(int code, const String& reason) OVERRIDE;
virtual void fail(const String& reason) OVERRIDE;
virtual void disconnect() OVERRIDE; // Will suppress didClose().
virtual void suspend() OVERRIDE;
virtual void resume() OVERRIDE;
// Generated by the bridge. The Peer and its bridge should have identical
// lifetimes.
class Peer : public WebSocketChannelClient {
WTF_MAKE_NONCOPYABLE(Peer); WTF_MAKE_FAST_ALLOCATED;
public:
static Peer* create(PassRefPtr<ThreadableWebSocketChannelClientWrapper> clientWrapper, WorkerLoaderProxy& loaderProxy, ScriptExecutionContext* context, const String& taskMode)
{
return new Peer(clientWrapper, loaderProxy, context, taskMode);
}
~Peer();
void connect(const KURL&, const String& protocol);
void send(const String& message);
void send(const ArrayBuffer&);
void send(const Blob&);
void bufferedAmount();
void close(int code, const String& reason);
void fail(const String& reason);
void disconnect();
void suspend();
void resume();
// WebSocketChannelClient functions.
virtual void didConnect() OVERRIDE;
virtual void didReceiveMessage(const String& message) OVERRIDE;
virtual void didReceiveBinaryData(PassOwnPtr<Vector<char> >) OVERRIDE;
virtual void didUpdateBufferedAmount(unsigned long bufferedAmount) OVERRIDE;
virtual void didStartClosingHandshake() OVERRIDE;
virtual void didClose(unsigned long unhandledBufferedAmount, ClosingHandshakeCompletionStatus, unsigned short code, const String& reason) OVERRIDE;
virtual void didReceiveMessageError() OVERRIDE;
private:
Peer(PassRefPtr<ThreadableWebSocketChannelClientWrapper>, WorkerLoaderProxy&, ScriptExecutionContext*, const String& taskMode);
RefPtr<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
WorkerLoaderProxy& m_loaderProxy;
RefPtr<ThreadableWebSocketChannel> m_mainWebSocketChannel;
String m_taskMode;
};
using RefCounted<WorkerThreadableWebSocketChannel>::ref;
using RefCounted<WorkerThreadableWebSocketChannel>::deref;
protected:
virtual void refThreadableWebSocketChannel() { ref(); }
virtual void derefThreadableWebSocketChannel() { deref(); }
private:
// Bridge for Peer. Running on the worker thread.
class Bridge : public RefCounted<Bridge> {
public:
static PassRefPtr<Bridge> create(PassRefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper, PassRefPtr<WorkerGlobalScope> workerGlobalScope, const String& taskMode)
{
return adoptRef(new Bridge(workerClientWrapper, workerGlobalScope, taskMode));
}
~Bridge();
void initialize();
void connect(const KURL&, const String& protocol);
ThreadableWebSocketChannel::SendResult send(const String& message);
ThreadableWebSocketChannel::SendResult send(const ArrayBuffer&, unsigned byteOffset, unsigned byteLength);
ThreadableWebSocketChannel::SendResult send(const Blob&);
unsigned long bufferedAmount();
void close(int code, const String& reason);
void fail(const String& reason);
void disconnect();
void suspend();
void resume();
using RefCounted<Bridge>::ref;
using RefCounted<Bridge>::deref;
private:
Bridge(PassRefPtr<ThreadableWebSocketChannelClientWrapper>, PassRefPtr<WorkerGlobalScope>, const String& taskMode);
static void setWebSocketChannel(ScriptExecutionContext*, Bridge* thisPtr, Peer*, PassRefPtr<ThreadableWebSocketChannelClientWrapper>);
// Executed on the main thread to create a Peer for this bridge.
static void mainThreadInitialize(ScriptExecutionContext*, WorkerLoaderProxy*, PassRefPtr<ThreadableWebSocketChannelClientWrapper>, const String& taskMode);
// Executed on the worker context's thread.
void clearClientWrapper();
void setMethodNotCompleted();
void waitForMethodCompletion();
RefPtr<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
RefPtr<WorkerGlobalScope> m_workerGlobalScope;
WorkerLoaderProxy& m_loaderProxy;
String m_taskMode;
Peer* m_peer;
};
WorkerThreadableWebSocketChannel(WorkerGlobalScope*, WebSocketChannelClient*, const String& taskMode);
static void mainThreadConnect(ScriptExecutionContext*, Peer*, const KURL&, const String& protocol);
static void mainThreadSend(ScriptExecutionContext*, Peer*, const String& message);
static void mainThreadSendArrayBuffer(ScriptExecutionContext*, Peer*, PassOwnPtr<Vector<char> >);
static void mainThreadSendBlob(ScriptExecutionContext*, Peer*, const KURL&, const String& type, long long size);
static void mainThreadBufferedAmount(ScriptExecutionContext*, Peer*);
static void mainThreadClose(ScriptExecutionContext*, Peer*, int code, const String& reason);
static void mainThreadFail(ScriptExecutionContext*, Peer*, const String& reason);
static void mainThreadDestroy(ScriptExecutionContext*, PassOwnPtr<Peer>);
static void mainThreadSuspend(ScriptExecutionContext*, Peer*);
static void mainThreadResume(ScriptExecutionContext*, Peer*);
class WorkerGlobalScopeDidInitializeTask;
RefPtr<WorkerGlobalScope> m_workerGlobalScope;
RefPtr<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
RefPtr<Bridge> m_bridge;
};
} // namespace WebCore
#endif // ENABLE(WEB_SOCKETS)
#endif // WorkerThreadableWebSocketChannel_h
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