Source/bindings/v8/DOMDataStore.cpp

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "config.h"
#include "bindings/v8/DOMDataStore.h"

#include "bindings/v8/DOMWrapperMap.h"
#include "bindings/v8/V8Binding.h"
#include "wtf/MainThread.h"

namespace WebCore {

DOMDataStore::DOMDataStore(WrapperWorldType type)
    : m_type(type)
    , m_wrapperMap(v8::Isolate::GetCurrent()) // FIXME Don't call GetCurrent twice.
{
    V8PerIsolateData::current()->registerDOMDataStore(this);
}

DOMDataStore::~DOMDataStore()
{
    ASSERT(m_type != MainWorld); // We never actually destruct the main world's DOMDataStore.
    V8PerIsolateData::current()->unregisterDOMDataStore(this);
    m_wrapperMap.clear();
}

DOMDataStore* DOMDataStore::mainWorldStore()
{
    DEFINE_STATIC_LOCAL(DOMDataStore, mainWorldDOMDataStore, (MainWorld));
    ASSERT(isMainThread());
    return &mainWorldDOMDataStore;
}

DOMDataStore* DOMDataStore::current(v8::Isolate* isolate)
{
    V8PerIsolateData* data = isolate ? V8PerIsolateData::from(isolate) : V8PerIsolateData::current();
    if (UNLIKELY(!!data->workerDOMDataStore()))
        return data->workerDOMDataStore();

    if (DOMWrapperWorld::isolatedWorldsExist()) {
        DOMWrapperWorld* isolatedWorld = DOMWrapperWorld::isolatedWorld(v8::Context::GetEntered());
        if (UNLIKELY(!!isolatedWorld))
            return isolatedWorld->isolatedWorldDOMDataStore();
    }

    return mainWorldStore();
}

} // namespace WebCore