Line data    Source code

       1             : // Copyright 2017 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #ifndef V8_HEAP_STRESS_SCAVENGE_OBSERVER_H_
       6             : #define V8_HEAP_STRESS_SCAVENGE_OBSERVER_H_
       7             : 
       8             : #include "src/heap/heap.h"
       9             : 
      10             : namespace v8 {
      11             : namespace internal {
      12             : 
      13           0 : class StressScavengeObserver : public AllocationObserver {
      14             :  public:
      15             :   explicit StressScavengeObserver(Heap& heap);
      16             : 
      17             :   void Step(int bytes_allocated, Address soon_object, size_t size) override;
      18             : 
      19             :   bool HasRequestedGC() const;
      20             :   void RequestedGCDone();
      21             : 
      22             :   // The maximum percent of the newspace capacity reached. This is tracked when
      23             :   // specyfing --fuzzer-gc-analysis.
      24             :   double MaxNewSpaceSizeReached() const;
      25             : 
      26             :  private:
      27             :   Heap& heap_;
      28             :   int limit_percentage_;
      29             :   bool has_requested_gc_;
      30             : 
      31             :   double max_new_space_size_reached_;
      32             : 
      33             :   int NextLimit(int min = 0);
      34             : };
      35             : 
      36             : }  // namespace internal
      37             : }  // namespace v8
      38             : 
      39             : #endif  // V8_HEAP_STRESS_SCAVENGE_OBSERVER_H_