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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:
* 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.
*/
#ifndef V8PerIsolateData_h
#define V8PerIsolateData_h
#include "ScopedPersistent.h"
#include <v8.h>
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/OwnPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
class DOMDataStore;
class GCEventData;
class IntegerCache;
class StringCache;
class V8HiddenPropertyName;
struct WrapperTypeInfo;
#if ENABLE(INSPECTOR)
class ExternalStringVisitor;
#endif
typedef WTF::Vector<DOMDataStore*> DOMDataList;
class V8PerIsolateData {
public:
static V8PerIsolateData* create(v8::Isolate*);
static void ensureInitialized(v8::Isolate*);
static V8PerIsolateData* current()
{
return from(v8::Isolate::GetCurrent());
}
static V8PerIsolateData* from(v8::Isolate* isolate)
{
ASSERT(isolate);
ASSERT(isolate->GetData());
return static_cast<V8PerIsolateData*>(isolate->GetData());
}
static void dispose(v8::Isolate*);
typedef HashMap<WrapperTypeInfo*, v8::Persistent<v8::FunctionTemplate> > TemplateMap;
TemplateMap& rawTemplateMap() { return m_rawTemplates; }
TemplateMap& templateMap() { return m_templates; }
v8::Handle<v8::FunctionTemplate> toStringTemplate();
v8::Persistent<v8::FunctionTemplate>& lazyEventListenerToStringTemplate()
{
return m_lazyEventListenerToStringTemplate;
}
StringCache* stringCache() { return m_stringCache.get(); }
IntegerCache* integerCache() { return m_integerCache.get(); }
v8::Persistent<v8::Value> ensureLiveRoot();
#if ENABLE(INSPECTOR)
void visitExternalStrings(ExternalStringVisitor*);
#endif
DOMDataList& allStores() { return m_domDataList; }
V8HiddenPropertyName* hiddenPropertyName() { return m_hiddenPropertyName.get(); }
void registerDOMDataStore(DOMDataStore* domDataStore)
{
ASSERT(m_domDataList.find(domDataStore) == notFound);
m_domDataList.append(domDataStore);
}
void unregisterDOMDataStore(DOMDataStore* domDataStore)
{
ASSERT(m_domDataList.find(domDataStore) != notFound);
m_domDataList.remove(m_domDataList.find(domDataStore));
}
// DOMDataStore is owned outside V8PerIsolateData.
DOMDataStore* domDataStore() { return m_domDataStore; }
void setDOMDataStore(DOMDataStore* store) { m_domDataStore = store; }
int recursionLevel() const { return m_recursionLevel; }
int incrementRecursionLevel() { return ++m_recursionLevel; }
int decrementRecursionLevel() { return --m_recursionLevel; }
int nextDependentRetainedId() { return m_nextDependentRetainedId++; }
#ifndef NDEBUG
int internalScriptRecursionLevel() const { return m_internalScriptRecursionLevel; }
int incrementInternalScriptRecursionLevel() { return ++m_internalScriptRecursionLevel; }
int decrementInternalScriptRecursionLevel() { return --m_internalScriptRecursionLevel; }
#endif
GCEventData* gcEventData() { return m_gcEventData.get(); }
void reportMemoryUsage(MemoryObjectInfo*) const;
// Gives the system a hint that we should request garbage collection
// upon the next close or navigation event, because some expensive
// objects have been allocated that we want to take every opportunity
// to collect.
void setShouldCollectGarbageSoon() { m_shouldCollectGarbageSoon = true; }
void clearShouldCollectGarbageSoon() { m_shouldCollectGarbageSoon = false; }
bool shouldCollectGarbageSoon() const { return m_shouldCollectGarbageSoon; }
private:
explicit V8PerIsolateData(v8::Isolate*);
~V8PerIsolateData();
static v8::Handle<v8::Value> constructorOfToString(const v8::Arguments&);
TemplateMap m_rawTemplates;
TemplateMap m_templates;
ScopedPersistent<v8::FunctionTemplate> m_toStringTemplate;
v8::Persistent<v8::FunctionTemplate> m_lazyEventListenerToStringTemplate;
OwnPtr<StringCache> m_stringCache;
OwnPtr<IntegerCache> m_integerCache;
Vector<DOMDataStore*> m_domDataList;
DOMDataStore* m_domDataStore;
OwnPtr<V8HiddenPropertyName> m_hiddenPropertyName;
ScopedPersistent<v8::Value> m_liveRoot;
ScopedPersistent<v8::Context> m_auxiliaryContext;
bool m_constructorMode;
friend class ConstructorMode;
int m_recursionLevel;
int m_nextDependentRetainedId;
#ifndef NDEBUG
int m_internalScriptRecursionLevel;
#endif
OwnPtr<GCEventData> m_gcEventData;
bool m_shouldCollectGarbageSoon;
};
} // namespace WebCore
#endif // V8PerIsolateData_h
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