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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_HEAP_GC_IDLE_TIME_HANDLER_H_
#define V8_HEAP_GC_IDLE_TIME_HANDLER_H_
#include "src/common/globals.h"
namespace v8 {
namespace internal {
enum class GCIdleTimeAction : uint8_t {
kDone,
kIncrementalStep,
};
class GCIdleTimeHeapState {
public:
void Print();
size_t size_of_objects;
bool incremental_marking_stopped;
};
// The idle time handler makes decisions about which garbage collection
// operations are executing during IdleNotification.
class V8_EXPORT_PRIVATE GCIdleTimeHandler {
public:
GCIdleTimeHandler() = default;
GCIdleTimeHandler(const GCIdleTimeHandler&) = delete;
GCIdleTimeHandler& operator=(const GCIdleTimeHandler&) = delete;
GCIdleTimeAction Compute(double idle_time_in_ms,
GCIdleTimeHeapState heap_state);
bool Enabled();
static double EstimateFinalIncrementalMarkCompactTime(
size_t size_of_objects, double mark_compact_speed_in_bytes_per_ms);
};
} // namespace internal
} // namespace v8
#endif // V8_HEAP_GC_IDLE_TIME_HANDLER_H_
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