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* Copyright (C) 2009 Google Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef PlatformMessagePortChannel_h
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#define PlatformMessagePortChannel_h
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#include "MessagePortChannel.h"
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#include <public/WebMessagePortChannelClient.h>
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#include <wtf/PassRefPtr.h>
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#include <wtf/Threading.h>
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class WebMessagePortChannel;
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// PlatformMessagePortChannel is a platform-dependent interface to the remote side of a message channel.
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class PlatformMessagePortChannel : public ThreadSafeRefCounted<PlatformMessagePortChannel>,
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public WebKit::WebMessagePortChannelClient {
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static void createChannel(PassRefPtr<MessagePort>, PassRefPtr<MessagePort>);
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static PassRefPtr<PlatformMessagePortChannel> create();
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static PassRefPtr<PlatformMessagePortChannel> create(WebKit::WebMessagePortChannel*);
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// APIs delegated from MessagePortChannel.h
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bool entangleIfOpen(MessagePort*);
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void postMessageToRemote(PassOwnPtr<MessagePortChannel::EventData>);
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bool tryGetMessageFromRemote(OwnPtr<MessagePortChannel::EventData>&);
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bool isConnectedTo(MessagePort* port);
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bool hasPendingActivity();
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// Releases ownership of the contained web channel.
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WebKit::WebMessagePortChannel* webChannelRelease();
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virtual ~PlatformMessagePortChannel();
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PlatformMessagePortChannel();
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PlatformMessagePortChannel(WebKit::WebMessagePortChannel*);
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void setEntangledChannel(PassRefPtr<PlatformMessagePortChannel>);
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// WebKit::WebMessagePortChannelClient implementation
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virtual void messageAvailable();
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// Mutex used to ensure exclusive access to the object internals.
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// Pointer to our entangled pair - cleared when close() is called.
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RefPtr<PlatformMessagePortChannel> m_entangledChannel;
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// The port we are connected to - this is the port that is notified when new messages arrive.
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MessagePort* m_localPort;
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WebKit::WebMessagePortChannel* m_webChannel;
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} // namespace WebCore
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#endif // PlatformMessagePortChannel_h