| /* |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_V8_GC_CONTROLLER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_V8_GC_CONTROLLER_H_ |
| |
| #include "third_party/blink/renderer/core/core_export.h" |
| #include "third_party/blink/renderer/platform/heap/handle.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator.h" |
| #include "v8/include/v8-profiler.h" |
| #include "v8/include/v8.h" |
| |
| namespace blink { |
| |
| class Node; |
| |
| class CORE_EXPORT V8GCController { |
| STATIC_ONLY(V8GCController); |
| |
| public: |
| static Node* OpaqueRootForGC(v8::Isolate*, Node*); |
| |
| // Prologue and epilogue callbacks for V8 garbage collections. |
| static void GcPrologue(v8::Isolate*, v8::GCType, v8::GCCallbackFlags); |
| static void GcEpilogue(v8::Isolate*, v8::GCType, v8::GCCallbackFlags); |
| |
| // Collects V8 and Blink objects in multiple garbage collection passes. Also |
| // triggers follow up garbage collections in Oilpan to collect chains of |
| // persistent handles. |
| // |
| // Usage: Testing that objects do indeed get collected. Note that this may |
| // depend on the EmbedderStackState, i.e., Blink may keep objects alive that |
| // are reachabe from the stack if necessary. |
| static void CollectAllGarbageForTesting( |
| v8::Isolate*, |
| v8::EmbedderHeapTracer::EmbedderStackState stack_state = |
| v8::EmbedderHeapTracer::EmbedderStackState::kUnknown); |
| |
| // Called when Oilpan traces references from V8 wrappers to DOM wrappables. |
| static void TraceDOMWrappers(v8::Isolate*, Visitor*); |
| |
| // Called upon terminating a thread when Oilpan clears references from V8 |
| // wrappers to DOM wrappables. |
| static void ClearDOMWrappers(v8::Isolate*); |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_V8_GC_CONTROLLER_H_ |