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/*
* Copyright (C) 2022 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "SharedWorkerIdentifier.h"
#include "TransferredMessagePort.h"
#include <wtf/AbstractRefCounted.h>
#include <wtf/HashMap.h>
#include <wtf/TZoneMalloc.h>
namespace WebCore {
class ScriptExecutionContext;
class SharedWorkerThreadProxy;
class SharedWorkerContextManager {
WTF_MAKE_TZONE_ALLOCATED_EXPORT(SharedWorkerContextManager, WEBCORE_EXPORT);
public:
WEBCORE_EXPORT static SharedWorkerContextManager& singleton();
SharedWorkerThreadProxy* sharedWorker(SharedWorkerIdentifier) const;
void stopSharedWorker(SharedWorkerIdentifier);
void suspendSharedWorker(SharedWorkerIdentifier);
void resumeSharedWorker(SharedWorkerIdentifier);
WEBCORE_EXPORT void stopAllSharedWorkers();
class Connection : public AbstractRefCounted {
WTF_MAKE_TZONE_ALLOCATED_EXPORT(Connection, WEBCORE_EXPORT);
public:
virtual ~Connection() { }
virtual void establishConnection(CompletionHandler<void()>&&) = 0;
virtual void postErrorToWorkerObject(SharedWorkerIdentifier, const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL, bool isErrrorEvent) = 0;
virtual void sharedWorkerTerminated(SharedWorkerIdentifier) = 0;
bool isClosed() const { return m_isClosed; }
protected:
void setAsClosed() { m_isClosed = true; }
// IPC message handlers.
WEBCORE_EXPORT void postConnectEvent(SharedWorkerIdentifier, TransferredMessagePort&&, String&& sourceOrigin, CompletionHandler<void(bool)>&&);
WEBCORE_EXPORT void terminateSharedWorker(SharedWorkerIdentifier);
WEBCORE_EXPORT void suspendSharedWorker(SharedWorkerIdentifier);
WEBCORE_EXPORT void resumeSharedWorker(SharedWorkerIdentifier);
private:
bool m_isClosed { false };
};
WEBCORE_EXPORT void setConnection(RefPtr<Connection>&&);
WEBCORE_EXPORT Connection* connection() const;
RefPtr<Connection> protectedConnection() const { return m_connection; }
WEBCORE_EXPORT void registerSharedWorkerThread(Ref<SharedWorkerThreadProxy>&&);
void forEachSharedWorker(NOESCAPE const Function<Function<void(ScriptExecutionContext&)>()>&);
private:
friend class NeverDestroyed<SharedWorkerContextManager>;
SharedWorkerContextManager() = default;
RefPtr<Connection> m_connection;
HashMap<SharedWorkerIdentifier, Ref<SharedWorkerThreadProxy>> m_workerMap;
};
} // namespace WebCore
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