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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.
*/
#pragma once
#include "ThreadableWebSocketChannel.h"
#include "WebSocketChannelClient.h"
#include "WorkerGlobalScope.h"
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class URL;
class ScriptExecutionContext;
class ThreadableWebSocketChannelClientWrapper;
class WorkerGlobalScope;
class WorkerLoaderProxy;
class WorkerRunLoop;
class WorkerThreadableWebSocketChannel : public RefCounted<WorkerThreadableWebSocketChannel>, public ThreadableWebSocketChannel {
WTF_MAKE_FAST_ALLOCATED;
public:
static Ref<ThreadableWebSocketChannel> create(WorkerGlobalScope& workerGlobalScope, WebSocketChannelClient& client, const String& taskMode, SocketProvider& provider)
{
return adoptRef(*new WorkerThreadableWebSocketChannel(workerGlobalScope, client, taskMode, provider));
}
virtual ~WorkerThreadableWebSocketChannel();
// ThreadableWebSocketChannel functions.
void connect(const URL&, const String& protocol) override;
String subprotocol() override;
String extensions() override;
ThreadableWebSocketChannel::SendResult send(const String& message) override;
ThreadableWebSocketChannel::SendResult send(const JSC::ArrayBuffer&, unsigned byteOffset, unsigned byteLength) override;
ThreadableWebSocketChannel::SendResult send(Blob&) override;
unsigned bufferedAmount() const override;
void close(int code, const String& reason) override;
void fail(const String& reason) override;
void disconnect() override; // Will suppress didClose().
void suspend() override;
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:
Peer(Ref<ThreadableWebSocketChannelClientWrapper>&&, WorkerLoaderProxy&, ScriptExecutionContext&, const String& taskMode, SocketProvider&);
~Peer();
void connect(const URL&, const String& protocol);
void send(const String& message);
void send(const JSC::ArrayBuffer&);
void send(Blob&);
void bufferedAmount();
void close(int code, const String& reason);
void fail(const String& reason);
void disconnect();
void suspend();
void resume();
// WebSocketChannelClient functions.
void didConnect() final;
void didReceiveMessage(const String& message) final;
void didReceiveBinaryData(Vector<uint8_t>&&) final;
void didUpdateBufferedAmount(unsigned bufferedAmount) final;
void didStartClosingHandshake() final;
void didClose(unsigned unhandledBufferedAmount, ClosingHandshakeCompletionStatus, unsigned short code, const String& reason) final;
void didReceiveMessageError() final;
void didUpgradeURL() final;
private:
Ref<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
WorkerLoaderProxy& m_loaderProxy;
RefPtr<ThreadableWebSocketChannel> m_mainWebSocketChannel;
String m_taskMode;
};
using RefCounted<WorkerThreadableWebSocketChannel>::ref;
using RefCounted<WorkerThreadableWebSocketChannel>::deref;
protected:
void refThreadableWebSocketChannel() override { ref(); }
void derefThreadableWebSocketChannel() override { deref(); }
private:
// Bridge for Peer. Running on the worker thread.
class Bridge : public RefCounted<Bridge> {
public:
static Ref<Bridge> create(Ref<ThreadableWebSocketChannelClientWrapper>&& workerClientWrapper, Ref<WorkerGlobalScope>&& workerGlobalScope, const String& taskMode, Ref<SocketProvider>&& provider)
{
return adoptRef(*new Bridge(WTFMove(workerClientWrapper), WTFMove(workerGlobalScope), taskMode, WTFMove(provider)));
}
~Bridge();
void initialize();
void connect(const URL&, const String& protocol);
ThreadableWebSocketChannel::SendResult send(const String& message);
ThreadableWebSocketChannel::SendResult send(const JSC::ArrayBuffer&, unsigned byteOffset, unsigned byteLength);
ThreadableWebSocketChannel::SendResult send(Blob&);
unsigned 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(Ref<ThreadableWebSocketChannelClientWrapper>&&, Ref<WorkerGlobalScope>&&, const String& taskMode, Ref<SocketProvider>&&);
static void setWebSocketChannel(ScriptExecutionContext*, Bridge* thisPtr, Peer*, Ref<ThreadableWebSocketChannelClientWrapper>&&);
// Executed on the main thread to create a Peer for this bridge.
static void mainThreadInitialize(ScriptExecutionContext&, WorkerLoaderProxy&, Ref<ThreadableWebSocketChannelClientWrapper>&&, const String& taskMode, Ref<SocketProvider>&&);
// Executed on the worker context's thread.
void clearClientWrapper();
void setMethodNotCompleted();
void waitForMethodCompletion();
Ref<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
RefPtr<WorkerGlobalScope> m_workerGlobalScope;
WorkerLoaderProxy& m_loaderProxy;
String m_taskMode;
Peer* m_peer { nullptr };
Ref<SocketProvider> m_socketProvider;
};
WEBCORE_EXPORT WorkerThreadableWebSocketChannel(WorkerGlobalScope&, WebSocketChannelClient&, const String& taskMode, SocketProvider&);
class WorkerGlobalScopeDidInitializeTask;
Ref<WorkerGlobalScope> m_workerGlobalScope;
Ref<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
RefPtr<Bridge> m_bridge;
Ref<SocketProvider> m_socketProvider;
};
} // namespace WebCore
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