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WebCoreJSClientData.h
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WebCoreJSClientData.h
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/*
* Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
* Copyright (C) 2003-2022 Apple Inc. All rights reserved.
* Copyright (C) 2007 Samuel Weinig <sam@webkit.org>
* Copyright (C) 2009 Google, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "DOMWrapperWorld.h"
#include "WebCoreBuiltinNames.h"
#include "WebCoreJSBuiltins.h"
#include "WorkerThreadType.h"
#include <wtf/Function.h>
#include <wtf/HashSet.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class ExtendedDOMClientIsoSubspaces;
class ExtendedDOMIsoSubspaces;
class JSHeapData {
WTF_MAKE_NONCOPYABLE(JSHeapData);
WTF_MAKE_FAST_ALLOCATED;
friend class JSVMClientData;
public:
JSHeapData(JSC::Heap&);
static JSHeapData* ensureHeapData(JSC::Heap&);
Lock& lock() { return m_lock; }
ExtendedDOMIsoSubspaces& subspaces() { return *m_subspaces.get(); }
Vector<JSC::IsoSubspace*>& outputConstraintSpaces() { return m_outputConstraintSpaces; }
template<typename Func>
void forEachOutputConstraintSpace(const Func& func)
{
for (auto* space : m_outputConstraintSpaces)
func(*space);
}
private:
Lock m_lock;
JSC::IsoHeapCellType m_runtimeArrayHeapCellType;
JSC::IsoHeapCellType m_runtimeObjectHeapCellType;
JSC::IsoHeapCellType m_windowProxyHeapCellType;
public:
JSC::IsoHeapCellType m_heapCellTypeForJSDOMWindow;
JSC::IsoHeapCellType m_heapCellTypeForJSDedicatedWorkerGlobalScope;
JSC::IsoHeapCellType m_heapCellTypeForJSRemoteDOMWindow;
JSC::IsoHeapCellType m_heapCellTypeForJSWorkerGlobalScope;
JSC::IsoHeapCellType m_heapCellTypeForJSSharedWorkerGlobalScope;
JSC::IsoHeapCellType m_heapCellTypeForJSShadowRealmGlobalScope;
#if ENABLE(SERVICE_WORKER)
JSC::IsoHeapCellType m_heapCellTypeForJSServiceWorkerGlobalScope;
#endif
JSC::IsoHeapCellType m_heapCellTypeForJSWorkletGlobalScope;
#if ENABLE(CSS_PAINTING_API)
JSC::IsoHeapCellType m_heapCellTypeForJSPaintWorkletGlobalScope;
#endif
#if ENABLE(WEB_AUDIO)
JSC::IsoHeapCellType m_heapCellTypeForJSAudioWorkletGlobalScope;
#endif
JSC::IsoHeapCellType m_heapCellTypeForJSIDBSerializationGlobalObject;
private:
JSC::IsoSubspace m_domBuiltinConstructorSpace;
JSC::IsoSubspace m_domConstructorSpace;
JSC::IsoSubspace m_domNamespaceObjectSpace;
JSC::IsoSubspace m_domWindowPropertiesSpace;
JSC::IsoSubspace m_runtimeArraySpace;
JSC::IsoSubspace m_runtimeMethodSpace;
JSC::IsoSubspace m_runtimeObjectSpace;
JSC::IsoSubspace m_windowProxySpace;
JSC::IsoSubspace m_idbSerializationSpace;
std::unique_ptr<ExtendedDOMIsoSubspaces> m_subspaces;
Vector<JSC::IsoSubspace*> m_outputConstraintSpaces;
};
class JSVMClientData : public JSC::VM::ClientData {
WTF_MAKE_NONCOPYABLE(JSVMClientData); WTF_MAKE_FAST_ALLOCATED;
friend class VMWorldIterator;
public:
explicit JSVMClientData(JSC::VM&);
virtual ~JSVMClientData();
WEBCORE_EXPORT static void initNormalWorld(JSC::VM*, WorkerThreadType);
DOMWrapperWorld& normalWorld() { return *m_normalWorld; }
void getAllWorlds(Vector<Ref<DOMWrapperWorld>>&);
void rememberWorld(DOMWrapperWorld& world)
{
ASSERT(!m_worldSet.contains(&world));
m_worldSet.add(&world);
}
void forgetWorld(DOMWrapperWorld& world)
{
ASSERT(m_worldSet.contains(&world));
m_worldSet.remove(&world);
}
virtual String overrideSourceURL(const JSC::StackFrame&, const String& originalSourceURL) const;
JSHeapData& heapData() { return *m_heapData; }
WebCoreBuiltinNames& builtinNames() { return m_builtinNames; }
JSBuiltinFunctions& builtinFunctions() { return m_builtinFunctions; }
JSC::GCClient::IsoSubspace& domBuiltinConstructorSpace() { return m_domBuiltinConstructorSpace; }
JSC::GCClient::IsoSubspace& domConstructorSpace() { return m_domConstructorSpace; }
JSC::GCClient::IsoSubspace& domNamespaceObjectSpace() { return m_domNamespaceObjectSpace; }
JSC::GCClient::IsoSubspace& domWindowPropertiesSpace() { return m_domWindowPropertiesSpace; }
JSC::GCClient::IsoSubspace& runtimeArraySpace() { return m_runtimeArraySpace; }
JSC::GCClient::IsoSubspace& runtimeMethodSpace() { return m_runtimeMethodSpace; }
JSC::GCClient::IsoSubspace& runtimeObjectSpace() { return m_runtimeObjectSpace; }
JSC::GCClient::IsoSubspace& windowProxySpace() { return m_windowProxySpace; }
JSC::GCClient::IsoSubspace& idbSerializationSpace() { return m_idbSerializationSpace; }
ExtendedDOMClientIsoSubspaces& clientSubspaces() { return *m_clientSubspaces.get(); }
private:
HashSet<DOMWrapperWorld*> m_worldSet;
RefPtr<DOMWrapperWorld> m_normalWorld;
JSBuiltinFunctions m_builtinFunctions;
WebCoreBuiltinNames m_builtinNames;
JSHeapData* m_heapData;
JSC::GCClient::IsoSubspace m_domBuiltinConstructorSpace;
JSC::GCClient::IsoSubspace m_domConstructorSpace;
JSC::GCClient::IsoSubspace m_domNamespaceObjectSpace;
JSC::GCClient::IsoSubspace m_domWindowPropertiesSpace;
JSC::GCClient::IsoSubspace m_runtimeArraySpace;
JSC::GCClient::IsoSubspace m_runtimeMethodSpace;
JSC::GCClient::IsoSubspace m_runtimeObjectSpace;
JSC::GCClient::IsoSubspace m_windowProxySpace;
JSC::GCClient::IsoSubspace m_idbSerializationSpace;
std::unique_ptr<ExtendedDOMClientIsoSubspaces> m_clientSubspaces;
};
enum class UseCustomHeapCellType { Yes, No };
template<typename T, UseCustomHeapCellType useCustomHeapCellType, typename GetClient, typename SetClient, typename GetServer, typename SetServer>
ALWAYS_INLINE JSC::GCClient::IsoSubspace* subspaceForImpl(JSC::VM& vm, GetClient getClient, SetClient setClient, GetServer getServer, SetServer setServer, JSC::HeapCellType& (*getCustomHeapCellType)(JSHeapData&) = nullptr)
{
auto& clientData = *static_cast<JSVMClientData*>(vm.clientData);
auto& clientSubspaces = clientData.clientSubspaces();
if (auto* clientSpace = getClient(clientSubspaces))
return clientSpace;
auto& heapData = clientData.heapData();
Locker locker { heapData.lock() };
auto& subspaces = heapData.subspaces();
JSC::IsoSubspace* space = getServer(subspaces);
if (!space) {
JSC::Heap& heap = vm.heap;
std::unique_ptr<JSC::IsoSubspace> uniqueSubspace;
static_assert(useCustomHeapCellType == UseCustomHeapCellType::Yes || std::is_base_of_v<JSC::JSDestructibleObject, T> || !T::needsDestruction);
if constexpr (useCustomHeapCellType == UseCustomHeapCellType::Yes)
uniqueSubspace = makeUnique<JSC::IsoSubspace> ISO_SUBSPACE_INIT(heap, getCustomHeapCellType(heapData), T);
else {
if constexpr (std::is_base_of_v<JSC::JSDestructibleObject, T>)
uniqueSubspace = makeUnique<JSC::IsoSubspace> ISO_SUBSPACE_INIT(heap, heap.destructibleObjectHeapCellType, T);
else
uniqueSubspace = makeUnique<JSC::IsoSubspace> ISO_SUBSPACE_INIT(heap, heap.cellHeapCellType, T);
}
space = uniqueSubspace.get();
setServer(subspaces, uniqueSubspace);
IGNORE_WARNINGS_BEGIN("unreachable-code")
IGNORE_WARNINGS_BEGIN("tautological-compare")
void (*myVisitOutputConstraint)(JSC::JSCell*, JSC::SlotVisitor&) = T::visitOutputConstraints;
void (*jsCellVisitOutputConstraint)(JSC::JSCell*, JSC::SlotVisitor&) = JSC::JSCell::visitOutputConstraints;
if (myVisitOutputConstraint != jsCellVisitOutputConstraint)
heapData.outputConstraintSpaces().append(space);
IGNORE_WARNINGS_END
IGNORE_WARNINGS_END
}
auto uniqueClientSubspace = makeUnique<JSC::GCClient::IsoSubspace>(*space);
auto* clientSpace = uniqueClientSubspace.get();
setClient(clientSubspaces, uniqueClientSubspace);
return clientSpace;
}
ALWAYS_INLINE WebCoreBuiltinNames& builtinNames(JSC::VM& vm)
{
return static_cast<JSVMClientData*>(vm.clientData)->builtinNames();
}
} // namespace WebCore