#ifndef WTFThreadData_h
#define WTFThreadData_h
#include <wtf/FastTLS.h>
#include <wtf/Noncopyable.h>
#include <wtf/StackBounds.h>
#include <wtf/StackStats.h>
#include <wtf/ThreadSpecific.h>
namespace WTF {
class AtomicStringTable;
typedef void (*AtomicStringTableDestructor)(AtomicStringTable*);
class WTFThreadData {
WTF_MAKE_NONCOPYABLE(WTFThreadData);
public:
WTF_EXPORT_PRIVATE WTFThreadData();
WTF_EXPORT_PRIVATE ~WTFThreadData();
AtomicStringTable* atomicStringTable()
{
return m_currentAtomicStringTable;
}
AtomicStringTable* setCurrentAtomicStringTable(AtomicStringTable* atomicStringTable)
{
AtomicStringTable* oldAtomicStringTable = m_currentAtomicStringTable;
m_currentAtomicStringTable = atomicStringTable;
return oldAtomicStringTable;
}
const StackBounds& stack()
{
#if OS(WINDOWS)
m_stackBounds = StackBounds::currentThreadStackBounds();
#endif
return m_stackBounds;
}
#if ENABLE(STACK_STATS)
StackStats::PerThreadStats& stackStats()
{
return m_stackStats;
}
#endif
void* savedStackPointerAtVMEntry()
{
return m_savedStackPointerAtVMEntry;
}
void setSavedStackPointerAtVMEntry(void* stackPointerAtVMEntry)
{
m_savedStackPointerAtVMEntry = stackPointerAtVMEntry;
}
void* savedLastStackTop()
{
return m_savedLastStackTop;
}
void setSavedLastStackTop(void* lastStackTop)
{
m_savedLastStackTop = lastStackTop;
}
void* m_apiData;
private:
AtomicStringTable* m_currentAtomicStringTable;
AtomicStringTable* m_defaultAtomicStringTable;
AtomicStringTableDestructor m_atomicStringTableDestructor;
StackBounds m_stackBounds;
#if ENABLE(STACK_STATS)
StackStats::PerThreadStats m_stackStats;
#endif
void* m_savedStackPointerAtVMEntry;
void* m_savedLastStackTop;
#if HAVE(FAST_TLS)
WTF_EXPORT_PRIVATE static WTFThreadData& createAndRegisterForGetspecificDirect();
#else
static WTF_EXPORTDATA ThreadSpecific<WTFThreadData>* staticData;
#endif
friend WTFThreadData& wtfThreadData();
friend class AtomicStringTable;
};
inline WTFThreadData& wtfThreadData()
{
#if !HAVE(FAST_TLS)
if (!WTFThreadData::staticData)
WTFThreadData::staticData = new ThreadSpecific<WTFThreadData>;
return **WTFThreadData::staticData;
#else
if (WTFThreadData* data = static_cast<WTFThreadData*>(_pthread_getspecific_direct(WTF_THREAD_DATA_KEY)))
return *data;
return WTFThreadData::createAndRegisterForGetspecificDirect();
#endif
}
}
using WTF::WTFThreadData;
using WTF::wtfThreadData;
using WTF::AtomicStringTable;
#endif // WTFThreadData_h