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/*
* Copyright (C) 2008, 2014 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. ``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
* 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 <pal/ThreadGlobalData.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/ThreadSafeRefCounted.h>
#include <wtf/text/StringHash.h>
namespace JSC {
class CallFrame;
class JSGlobalObject;
}
namespace WebCore {
class FontCache;
class QualifiedNameCache;
class ThreadTimers;
struct CachedResourceRequestInitiatorTypes;
struct EventNames;
struct MIMETypeRegistryThreadGlobalData;
class ThreadGlobalData : public PAL::ThreadGlobalData {
WTF_MAKE_TZONE_ALLOCATED_EXPORT(ThreadGlobalData, WEBCORE_EXPORT);
WTF_MAKE_NONCOPYABLE(ThreadGlobalData);
public:
WEBCORE_EXPORT ThreadGlobalData();
WEBCORE_EXPORT ~ThreadGlobalData();
void destroy(); // called on workers to clean up the ThreadGlobalData before the thread exits.
const CachedResourceRequestInitiatorTypes& cachedResourceRequestInitiatorTypes()
{
ASSERT(!m_destroyed);
if (UNLIKELY(!m_cachedResourceRequestInitiatorTypes))
initializeCachedResourceRequestInitiatorTypes();
return *m_cachedResourceRequestInitiatorTypes;
}
EventNames& eventNames()
{
ASSERT(!m_destroyed);
if (UNLIKELY(!m_eventNames))
initializeEventNames();
return *m_eventNames;
}
QualifiedNameCache& qualifiedNameCache()
{
ASSERT(!m_destroyed);
if (UNLIKELY(!m_qualifiedNameCache))
initializeQualifiedNameCache();
return *m_qualifiedNameCache;
}
const MIMETypeRegistryThreadGlobalData& mimeTypeRegistryThreadGlobalData()
{
ASSERT(!m_destroyed);
if (UNLIKELY(!m_MIMETypeRegistryThreadGlobalData))
initializeMimeTypeRegistryThreadGlobalData();
return *m_MIMETypeRegistryThreadGlobalData;
}
ThreadTimers& threadTimers() { return *m_threadTimers; }
JSC::JSGlobalObject* currentState() const { return m_currentState; }
void setCurrentState(JSC::JSGlobalObject* state) { m_currentState = state; }
#if USE(WEB_THREAD)
void setWebCoreThreadData();
#endif
bool isInRemoveAllEventListeners() const { return m_isInRemoveAllEventListeners; }
void setIsInRemoveAllEventListeners(bool value) { m_isInRemoveAllEventListeners = value; }
FontCache& fontCache()
{
ASSERT(!m_destroyed);
if (UNLIKELY(!m_fontCache))
initializeFontCache();
return *m_fontCache;
}
FontCache* fontCacheIfExists() { return m_fontCache.get(); }
FontCache* fontCacheIfNotDestroyed() { return m_destroyed ? nullptr : &fontCache(); }
private:
bool m_destroyed { false };
WEBCORE_EXPORT void initializeCachedResourceRequestInitiatorTypes();
WEBCORE_EXPORT void initializeEventNames();
WEBCORE_EXPORT void initializeQualifiedNameCache();
WEBCORE_EXPORT void initializeMimeTypeRegistryThreadGlobalData();
WEBCORE_EXPORT void initializeFontCache();
std::unique_ptr<CachedResourceRequestInitiatorTypes> m_cachedResourceRequestInitiatorTypes;
std::unique_ptr<EventNames> m_eventNames;
std::unique_ptr<ThreadTimers> m_threadTimers;
std::unique_ptr<QualifiedNameCache> m_qualifiedNameCache;
JSC::JSGlobalObject* m_currentState { nullptr };
std::unique_ptr<MIMETypeRegistryThreadGlobalData> m_MIMETypeRegistryThreadGlobalData;
std::unique_ptr<FontCache> m_fontCache;
#ifndef NDEBUG
bool m_isMainThread;
#endif
bool m_isInRemoveAllEventListeners { false };
friend ThreadGlobalData& threadGlobalData();
};
#if USE(WEB_THREAD)
WEBCORE_EXPORT ThreadGlobalData& threadGlobalDataSlow();
#else
WEBCORE_EXPORT ThreadGlobalData& threadGlobalDataSlow() PURE_FUNCTION;
#endif
#if USE(WEB_THREAD)
inline ThreadGlobalData& threadGlobalData()
#else
inline PURE_FUNCTION ThreadGlobalData& threadGlobalData()
#endif
{
#if HAVE(FAST_TLS)
if (auto* thread = Thread::currentMayBeNull(); LIKELY(thread)) {
if (auto* clientData = thread->m_clientData.get(); LIKELY(clientData))
return *static_cast<ThreadGlobalData*>(clientData);
}
#else
auto& thread = Thread::current();
auto* clientData = thread.m_clientData.get();
if (LIKELY(clientData))
return *static_cast<ThreadGlobalData*>(clientData);
#endif
return threadGlobalDataSlow();
}
} // namespace WebCore
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