#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>
using namespace JSC;
namespace WebCore {
static void collect(void*)
{
JSLockHolder lock(JSDOMWindow::commonVM());
JSDOMWindow::commonVM().heap.collectAllGarbage();
}
GCController& gcController()
{
DEPRECATED_DEFINE_STATIC_LOCAL(GCController, staticGCController, ());
return staticGCController;
}
GCController::GCController()
#if !USE(CF)
: m_GCTimer(this, &GCController::gcTimerFired)
#endif
{
}
void GCController::garbageCollectSoon()
{
#if USE(CF)
JSLockHolder lock(JSDOMWindow::commonVM());
JSDOMWindow::commonVM().heap.reportAbandonedObjectGraph();
#else
if (!m_GCTimer.isActive())
m_GCTimer.startOneShot(0);
#endif
}
#if !USE(CF)
void GCController::gcTimerFired(Timer<GCController>*)
{
collect(nullptr);
}
#endif
void GCController::garbageCollectNow()
{
JSLockHolder lock(JSDOMWindow::commonVM());
if (!JSDOMWindow::commonVM().heap.isBusy()) {
JSDOMWindow::commonVM().heap.collectAllGarbage();
WTF::releaseFastMallocFreeMemory();
}
}
void GCController::garbageCollectOnAlternateThreadForDebugging(bool waitUntilDone)
{
ThreadIdentifier threadID = createThread(collect, 0, "WebCore: GCController");
if (waitUntilDone) {
waitForThreadCompletion(threadID);
return;
}
detachThread(threadID);
}
void GCController::releaseExecutableMemory()
{
JSLockHolder lock(JSDOMWindow::commonVM());
ASSERT(!JSDOMWindow::commonVM().entryScope);
if (JSDOMWindow::commonVM().entryScope)
return;
JSDOMWindow::commonVM().releaseExecutableMemory();
}
void GCController::setJavaScriptGarbageCollectorTimerEnabled(bool enable)
{
JSDOMWindow::commonVM().heap.setGarbageCollectionTimerEnabled(enable);
}
void GCController::discardAllCompiledCode()
{
JSLockHolder lock(JSDOMWindow::commonVM());
JSDOMWindow::commonVM().discardAllCode();
}
}