#include "config.h"
#include "RegisterFile.h"
#include "ConservativeRoots.h"
#include "Interpreter.h"
#include "JSGlobalData.h"
#include "JSGlobalObject.h"
namespace JSC {
static size_t committedBytesCount = 0;
static Mutex& registerFileStatisticsMutex()
{
DEFINE_STATIC_LOCAL(Mutex, staticMutex, ());
return staticMutex;
}
RegisterFile::~RegisterFile()
{
void* base = m_reservation.base();
m_reservation.decommit(base, reinterpret_cast<intptr_t>(m_commitEnd) - reinterpret_cast<intptr_t>(base));
addToCommittedByteCount(-(reinterpret_cast<intptr_t>(m_commitEnd) - reinterpret_cast<intptr_t>(base)));
m_reservation.deallocate();
}
void RegisterFile::gatherConservativeRoots(ConservativeRoots& conservativeRoots)
{
for (Register* it = start(); it != end(); ++it) {
JSValue v = it->jsValue();
if (!v.isCell())
continue;
conservativeRoots.add(v.asCell());
}
}
void RegisterFile::releaseExcessCapacity()
{
m_reservation.decommit(m_start, reinterpret_cast<intptr_t>(m_commitEnd) - reinterpret_cast<intptr_t>(m_start));
addToCommittedByteCount(-(reinterpret_cast<intptr_t>(m_commitEnd) - reinterpret_cast<intptr_t>(m_start)));
m_commitEnd = m_start;
m_maxUsed = m_start;
}
void RegisterFile::setGlobalObject(JSGlobalObject* globalObject)
{
m_globalObject.set(globalObject->globalData(), globalObject, &m_globalObjectOwner, this);
}
JSGlobalObject* RegisterFile::globalObject()
{
return m_globalObject.get();
}
void RegisterFile::initializeThreading()
{
registerFileStatisticsMutex();
}
size_t RegisterFile::committedByteCount()
{
MutexLocker locker(registerFileStatisticsMutex());
return committedBytesCount;
}
void RegisterFile::addToCommittedByteCount(long byteCount)
{
MutexLocker locker(registerFileStatisticsMutex());
ASSERT(static_cast<long>(committedBytesCount) + byteCount > -1);
committedBytesCount += byteCount;
}
}