blob: aab1f16f590e13f95b294a8ef2a273f8553ec301 [file] [log] [blame]
// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/gtest_prod_util.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_initializer.h"
#include "third_party/blink/renderer/controller/controller_export.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
#include "third_party/blink/renderer/platform/wtf/time.h"
namespace blink {
// Singleton class for detecting and handling bloated renderer conditions.
// Different parts of the renderer call the corresponding methods of this
// class to notify about potential bloat conditions. It currently works only
// for V8. In future it will be extended to the whole renderer.
class CONTROLLER_EXPORT BloatedRendererDetector {
// Sets up the global singleton instance.
static void Initialize();
// Called when the main V8 isolate is close to reach its heap limit.
static NearV8HeapLimitHandling OnNearV8HeapLimitOnMainThread();
friend class BloatedRendererDetectorTest;
FRIEND_TEST_ALL_PREFIXES(BloatedRendererDetectorTest, ForwardToBrowser);
FRIEND_TEST_ALL_PREFIXES(BloatedRendererDetectorTest, SmallUptime);
// The minimum uptime after which bloated renderer detection starts.
static const int kMinimumUptimeInMinutes = 10;
explicit BloatedRendererDetector(WTF::TimeTicks startup_time)
: startup_time_(startup_time) {}
NearV8HeapLimitHandling OnNearV8HeapLimitOnMainThreadImpl();
const WTF::TimeTicks startup_time_;
} // namespace blink