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/*
* Copyright (C) 2009 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 THIRD_PARTY_BLINK_RENDERER_CORE_WORKERS_DEDICATED_WORKER_OBJECT_PROXY_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_WORKERS_DEDICATED_WORKER_OBJECT_PROXY_H_
#include <memory>
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/public/common/tokens/tokens.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/messaging/message_port.h"
#include "third_party/blink/renderer/core/workers/threaded_object_proxy_base.h"
#include "third_party/blink/renderer/core/workers/worker_reporting_proxy.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
struct BlinkTransferableMessage;
class DedicatedWorkerMessagingProxy;
class ParentExecutionContextTaskRunners;
class ThreadedMessagingProxyBase;
class WorkerThread;
// A proxy class to talk to a DedicatedWorker object on the main thread via the
// DedicatedWorkerMessagingProxy from a worker thread. See class comments on
// ThreadedObjectProxyBase.h for the lifetime and thread affinity.
class CORE_EXPORT DedicatedWorkerObjectProxy : public ThreadedObjectProxyBase {
USING_FAST_MALLOC(DedicatedWorkerObjectProxy);
public:
DedicatedWorkerObjectProxy(DedicatedWorkerMessagingProxy*,
ParentExecutionContextTaskRunners*,
const DedicatedWorkerToken&);
DedicatedWorkerObjectProxy(const DedicatedWorkerObjectProxy&) = delete;
DedicatedWorkerObjectProxy& operator=(const DedicatedWorkerObjectProxy&) =
delete;
~DedicatedWorkerObjectProxy() override;
void PostMessageToWorkerObject(BlinkTransferableMessage);
void ProcessUnhandledException(int exception_id, WorkerThread*);
void ProcessMessageFromWorkerObject(BlinkTransferableMessage, WorkerThread*);
// ThreadedObjectProxyBase overrides.
void ReportException(const String& error_message,
std::unique_ptr<SourceLocation>,
int exception_id) override;
void DidFailToFetchClassicScript() final;
void DidFailToFetchModuleScript() final;
void DidEvaluateTopLevelScript(bool success) override;
const DedicatedWorkerToken& token() const { return token_; }
protected:
CrossThreadWeakPersistent<ThreadedMessagingProxyBase> MessagingProxyWeakPtr()
final;
private:
friend class DedicatedWorkerObjectProxyForTest;
const DedicatedWorkerToken token_;
// No guarantees about the lifetimes of tasks posted by this proxy wrt the
// DedicatedWorkerMessagingProxy so a weak pointer must be used when posting
// the tasks.
CrossThreadWeakPersistent<DedicatedWorkerMessagingProxy>
messaging_proxy_weak_ptr_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_WORKERS_DEDICATED_WORKER_OBJECT_PROXY_H_
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