#include "config.h"
#include "GCController.h"
#include "JSDOMWindow.h"
#include <runtime/VM.h>
#include <runtime/JSLock.h>
#include <heap/Heap.h>
#include <wtf/StdLibExtras.h>
#include <wtf/FastMalloc.h>
#include <wtf/NeverDestroyed.h>
using namespace JSC;
namespace WebCore {
static void collect(void*)
{
JSLockHolder lock(JSDOMWindow::commonVM());
JSDOMWindow::commonVM().heap.collectAllGarbage();
}
GCController& GCController::singleton()
{
static NeverDestroyed<GCController> controller;
return controller;
}
GCController::GCController()
: m_GCTimer(*this, &GCController::gcTimerFired)
{
}
void GCController::garbageCollectSoon()
{
#if USE(CF) || USE(GLIB)
JSLockHolder lock(JSDOMWindow::commonVM());
JSDOMWindow::commonVM().heap.reportAbandonedObjectGraph();
#else
garbageCollectOnNextRunLoop();
#endif
}
void GCController::garbageCollectOnNextRunLoop()
{
if (!m_GCTimer.isActive())
m_GCTimer.startOneShot(0);
}
void GCController::gcTimerFired()
{
collect(nullptr);
}
void GCController::garbageCollectNow()
{
JSLockHolder lock(JSDOMWindow::commonVM());
if (!JSDOMWindow::commonVM().heap.isBusy()) {
JSDOMWindow::commonVM().heap.collectAllGarbage();
WTF::releaseFastMallocFreeMemory();
}
}
void GCController::garbageCollectNowIfNotDoneRecently()
{
#if USE(CF) || USE(GLIB)
JSLockHolder lock(JSDOMWindow::commonVM());
if (!JSDOMWindow::commonVM().heap.isBusy())
JSDOMWindow::commonVM().heap.collectAllGarbageIfNotDoneRecently();
#else
garbageCollectSoon();
#endif
}
void GCController::garbageCollectOnAlternateThreadForDebugging(bool waitUntilDone)
{
ThreadIdentifier threadID = createThread(collect, 0, "WebCore: GCController");
if (waitUntilDone) {
waitForThreadCompletion(threadID);
return;
}
detachThread(threadID);
}
void GCController::setJavaScriptGarbageCollectorTimerEnabled(bool enable)
{
JSDOMWindow::commonVM().heap.setGarbageCollectionTimerEnabled(enable);
}
void GCController::deleteAllCode()
{
JSLockHolder lock(JSDOMWindow::commonVM());
JSDOMWindow::commonVM().deleteAllCode();
}
void GCController::deleteAllLinkedCode()
{
JSLockHolder lock(JSDOMWindow::commonVM());
JSDOMWindow::commonVM().deleteAllLinkedCode();
}
}