#ifndef APIShims_h
#define APIShims_h
#include "CallFrame.h"
#include "GCActivityCallback.h"
#include "JSLock.h"
#include <wtf/WTFThreadData.h>
namespace JSC {
class APIEntryShimWithoutLock {
public:
enum RefGlobalDataTag { DontRefGlobalData = 0, RefGlobalData };
protected:
APIEntryShimWithoutLock(JSGlobalData* globalData, bool registerThread, RefGlobalDataTag shouldRefGlobalData)
: m_shouldRefGlobalData(shouldRefGlobalData)
, m_globalData(globalData)
, m_entryIdentifierTable(wtfThreadData().setCurrentIdentifierTable(globalData->identifierTable))
{
if (shouldRefGlobalData)
m_globalData->ref();
UNUSED_PARAM(registerThread);
if (registerThread)
globalData->heap.machineThreads().addCurrentThread();
m_globalData->heap.activityCallback()->synchronize();
}
~APIEntryShimWithoutLock()
{
wtfThreadData().setCurrentIdentifierTable(m_entryIdentifierTable);
if (m_shouldRefGlobalData)
m_globalData->deref();
}
protected:
RefGlobalDataTag m_shouldRefGlobalData;
JSGlobalData* m_globalData;
IdentifierTable* m_entryIdentifierTable;
};
class APIEntryShim : public APIEntryShimWithoutLock {
public:
APIEntryShim(ExecState* exec, bool registerThread = true)
: APIEntryShimWithoutLock(&exec->globalData(), registerThread, RefGlobalData)
{
init();
}
APIEntryShim(JSGlobalData* globalData, RefGlobalDataTag refGlobalData, bool registerThread = true)
: APIEntryShimWithoutLock(globalData, registerThread, refGlobalData)
{
init();
}
APIEntryShim(JSGlobalData* globalData, bool registerThread = true)
: APIEntryShimWithoutLock(globalData, registerThread, RefGlobalData)
{
init();
}
~APIEntryShim()
{
m_globalData->timeoutChecker.stop();
m_globalData->apiLock().unlock();
}
private:
void init()
{
m_globalData->apiLock().lock();
m_globalData->timeoutChecker.start();
}
};
class APICallbackShim {
public:
APICallbackShim(ExecState* exec)
: m_dropAllLocks(exec)
, m_globalData(&exec->globalData())
{
wtfThreadData().resetCurrentIdentifierTable();
}
~APICallbackShim()
{
wtfThreadData().setCurrentIdentifierTable(m_globalData->identifierTable);
}
private:
JSLock::DropAllLocks m_dropAllLocks;
JSGlobalData* m_globalData;
};
}
#endif