[WTF] Drop Thread::create(obsolete things) API since we can use lambda
[WebKit-https.git] / Source / WebCore / bindings / js / GCController.cpp
index 765e363..b26f757 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2007 Apple Inc. All rights reserved.
+ * Copyright (C) 2007-2017 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "GCController.h"
 
-#include "JSDOMWindow.h"
-#include <runtime/JSGlobalData.h>
+#include "CommonVM.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*)
+static void collect()
 {
-    JSLock lock(SilenceAssertionsOnly);
-    JSDOMWindow::commonJSGlobalData()->heap.collectAllGarbage();
-    return 0;
+    JSLockHolder lock(commonVM());
+    commonVM().heap.collectNow(Async, CollectionScope::Full);
 }
 
-GCController& gcController()
+GCController& GCController::singleton()
 {
-    DEFINE_STATIC_LOCAL(GCController, staticGCController, ());
-    return staticGCController;
+    static NeverDestroyed<GCController> controller;
+    return controller;
 }
 
 GCController::GCController()
-    : m_GCTimer(this, &GCController::gcTimerFired)
+    : m_GCTimer(*this, &GCController::gcTimerFired)
 {
 }
 
 void GCController::garbageCollectSoon()
 {
+    // We only use reportAbandonedObjectGraph for systems for which there's an implementation
+    // of the garbage collector timers in JavaScriptCore. We wouldn't need this if JavaScriptCore
+    // used a timer implementation from WTF like RunLoop::Timer.
+#if USE(CF) || USE(GLIB)
+    JSLockHolder lock(commonVM());
+    commonVM().heap.reportAbandonedObjectGraph();
+#else
+    garbageCollectOnNextRunLoop();
+#endif
+}
+
+void GCController::garbageCollectOnNextRunLoop()
+{
     if (!m_GCTimer.isActive())
-        m_GCTimer.startOneShot(0);
+        m_GCTimer.startOneShot(0_s);
 }
 
-void GCController::gcTimerFired(Timer<GCController>*)
+void GCController::gcTimerFired()
 {
-    collect(0);
+    collect();
 }
 
 void GCController::garbageCollectNow()
 {
-    JSLock lock(SilenceAssertionsOnly);
-    if (!JSDOMWindow::commonJSGlobalData()->heap.isBusy())
-        collect(0);
+    JSLockHolder lock(commonVM());
+    if (!commonVM().heap.isCurrentThreadBusy()) {
+        commonVM().heap.collectNow(Sync, CollectionScope::Full);
+        WTF::releaseFastMallocFreeMemory();
+    }
+}
+
+void GCController::garbageCollectNowIfNotDoneRecently()
+{
+#if USE(CF) || USE(GLIB)
+    JSLockHolder lock(commonVM());
+    if (!commonVM().heap.isCurrentThreadBusy())
+        commonVM().heap.collectNowFullIfNotDoneRecently(Async);
+#else
+    garbageCollectSoon();
+#endif
 }
 
 void GCController::garbageCollectOnAlternateThreadForDebugging(bool waitUntilDone)
 {
-    ThreadIdentifier threadID = createThread(collect, 0, "WebCore: GCController");
+    RefPtr<Thread> thread = Thread::create("WebCore: GCController", &collect);
 
     if (waitUntilDone) {
-        waitForThreadCompletion(threadID, 0);
+        thread->waitForCompletion();
         return;
     }
 
-    detachThread(threadID);
+    thread->detach();
+}
+
+void GCController::setJavaScriptGarbageCollectorTimerEnabled(bool enable)
+{
+    commonVM().heap.setGarbageCollectionTimerEnabled(enable);
+}
+
+void GCController::deleteAllCode(DeleteAllCodeEffort effort)
+{
+    JSLockHolder lock(commonVM());
+    commonVM().deleteAllCode(effort);
+}
+
+void GCController::deleteAllLinkedCode(DeleteAllCodeEffort effort)
+{
+    JSLockHolder lock(commonVM());
+    commonVM().deleteAllLinkedCode(effort);
 }
 
 } // namespace WebCore