Exemplo n.º 1
0
GCThreadSharedData::GCThreadSharedData(VM* vm)
    : m_vm(vm)
    , m_copiedSpace(&vm->heap.m_storageSpace)
    , m_shouldHashCons(false)
    , m_sharedMarkStack()
    , m_numberOfActiveParallelMarkers(0)
    , m_parallelMarkersShouldExit(false)
    , m_copyIndex(0)
    , m_numberOfActiveGCThreads(0)
    , m_gcThreadsShouldWait(false)
    , m_currentPhase(NoPhase)
{
#if ENABLE(PARALLEL_GC)
    // Grab the lock so the new GC threads can be properly initialized before they start running.
    std::unique_lock<std::mutex> lock(m_phaseMutex);
    for (unsigned i = 1; i < Options::numberOfGCMarkers(); ++i) {
        m_numberOfActiveGCThreads++;
        SlotVisitor* slotVisitor = new SlotVisitor(*this);
        CopyVisitor* copyVisitor = new CopyVisitor(*this);
        GCThread* newThread = new GCThread(*this, slotVisitor, copyVisitor);
        ThreadIdentifier threadID = createThread(GCThread::gcThreadStartFunc, newThread, "JavaScriptCore::Marking");
        newThread->initializeThreadID(threadID);
        m_gcThreads.append(newThread);
    }

    // Wait for all the GCThreads to get to the right place.
    m_activityConditionVariable.wait(lock, [this] { return !m_numberOfActiveGCThreads; });
#endif
}
Exemplo n.º 2
0
GCThreadSharedData::GCThreadSharedData(JSGlobalData* globalData)
    : m_globalData(globalData)
    , m_copiedSpace(&globalData->heap.m_storageSpace)
    , m_shouldHashConst(false)
    , m_sharedMarkStack(m_segmentAllocator)
    , m_numberOfActiveParallelMarkers(0)
    , m_parallelMarkersShouldExit(false)
    , m_blocksToCopy(globalData->heap.m_blockSnapshot)
    , m_copyIndex(0)
    , m_numberOfActiveGCThreads(0)
    , m_gcThreadsShouldWait(false)
    , m_currentPhase(NoPhase)
{
    m_copyLock.Init();
#if ENABLE(PARALLEL_GC)
    // Grab the lock so the new GC threads can be properly initialized before they start running.
    MutexLocker locker(m_phaseLock);
    for (unsigned i = 1; i < Options::numberOfGCMarkers(); ++i) {
        m_numberOfActiveGCThreads++;
        SlotVisitor* slotVisitor = new SlotVisitor(*this);
        CopyVisitor* copyVisitor = new CopyVisitor(*this);
        GCThread* newThread = new GCThread(*this, slotVisitor, copyVisitor);
        ThreadIdentifier threadID = createThread(GCThread::gcThreadStartFunc, newThread, "JavaScriptCore::Marking");
        newThread->initializeThreadID(threadID);
        m_gcThreads.append(newThread);
    }

    // Wait for all the GCThreads to get to the right place.
    while (m_numberOfActiveGCThreads)
        m_activityCondition.wait(m_phaseLock);
#endif
}
Exemplo n.º 3
0
void GCThread::gcThreadStartFunc(void* data)
{
    GCThread* thread = static_cast<GCThread*>(data);
    thread->gcThreadMain();
}