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Unified Diff: src/zone/accounting-allocator.h

Issue 2400343002: Revert of Pool implementation for zone segments (Closed)
Patch Set: Created 4 years, 2 months ago
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Index: src/zone/accounting-allocator.h
diff --git a/src/zone/accounting-allocator.h b/src/zone/accounting-allocator.h
index 6a32e18af7b8daaab93789e1e1b8dd8bf314525c..31016a5018326d8c89e7cf1fd779ce111da5b2bb 100644
--- a/src/zone/accounting-allocator.h
+++ b/src/zone/accounting-allocator.h
@@ -19,54 +19,18 @@
class V8_EXPORT_PRIVATE AccountingAllocator {
public:
- AccountingAllocator();
- virtual ~AccountingAllocator();
+ AccountingAllocator() = default;
+ virtual ~AccountingAllocator() = default;
- // Gets an empty segment from the pool or creates a new one.
- virtual Segment* GetSegment(size_t bytes);
- // Return unneeded segments to either insert them into the pool or release
- // them if the pool is already full or memory pressure is high.
- virtual void ReturnSegment(Segment* memory);
+ virtual Segment* AllocateSegment(size_t bytes);
+ virtual void FreeSegment(Segment* memory);
size_t GetCurrentMemoryUsage() const;
size_t GetMaxMemoryUsage() const;
- size_t GetCurrentPoolSize() const;
-
- void MemoryPressureNotification(MemoryPressureLevel level);
-
private:
- static const uint8_t kMinSegmentSizePower = 13;
- static const uint8_t kMaxSegmentSizePower = 18;
- static const uint8_t kMaxSegmentsPerBucket = 5;
-
- STATIC_ASSERT(kMinSegmentSizePower <= kMaxSegmentSizePower);
-
- // Allocates a new segment. Returns nullptr on failed allocation.
- Segment* AllocateSegment(size_t bytes);
- void FreeSegment(Segment* memory);
-
- // Returns a segment from the pool of at least the requested size.
- Segment* GetSegmentFromPool(size_t requested_size);
- // Trys to add a segment to the pool. Returns false if the pool is full.
- bool AddSegmentToPool(Segment* segment);
-
- // Empties the pool and puts all its contents onto the garbage stack.
- void ClearPool();
-
- Segment*
- unused_segments_heads_[1 + kMaxSegmentSizePower - kMinSegmentSizePower];
-
- size_t unused_segments_sizes[1 + kMaxSegmentSizePower - kMinSegmentSizePower];
-
- size_t unused_segments_size_ = 0;
-
- base::Mutex unused_segments_mutex_;
-
base::AtomicWord current_memory_usage_ = 0;
base::AtomicWord max_memory_usage_ = 0;
-
- base::AtomicValue<MemoryPressureLevel> memory_pressure_level_;
DISALLOW_COPY_AND_ASSIGN(AccountingAllocator);
};
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