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/*
* Copyright (C) 2010 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_FOR_CONTEXT_DISPOSE_H_
#define THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_V8_GC_FOR_CONTEXT_DISPOSE_H_
#include "third_party/blink/renderer/bindings/core/v8/window_proxy.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/timer.h"
namespace blink {
class V8GCForContextDispose {
USING_FAST_MALLOC(V8GCForContextDispose);
WTF_MAKE_NONCOPYABLE(V8GCForContextDispose);
public:
void NotifyContextDisposed(bool is_main_frame, WindowProxy::FrameReuseStatus);
void NotifyIdle();
CORE_EXPORT static V8GCForContextDispose& Instance();
// Called by OomInterventionImpl. If intervention runs on the previous page,
// it means that the memory usage is high and needs gc during navigation to
// the next page, so that the memory usage of the two pages would not overlap.
CORE_EXPORT void SetForcePageNavigationGC();
private:
V8GCForContextDispose(); // Use instance() instead.
void PseudoIdleTimerFired(TimerBase*);
void Reset();
TaskRunnerTimer<V8GCForContextDispose> pseudo_idle_timer_;
bool did_dispose_context_for_main_frame_;
double last_context_disposal_time_;
bool force_page_navigation_gc_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_BINDINGS_CORE_V8_V8_GC_FOR_CONTEXT_DISPOSE_H_
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