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| 1 // Copyright 2016 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_BASE_ACCOUNTING_ALLOCATOR_H_ |
| 6 #define V8_BASE_ACCOUNTING_ALLOCATOR_H_ |
| 7 |
| 8 #include "src/base/atomicops.h" |
| 9 #include "src/base/macros.h" |
| 10 |
| 11 namespace v8 { |
| 12 namespace base { |
| 13 |
| 14 class AccountingAllocator final { |
| 15 public: |
| 16 AccountingAllocator() = default; |
| 17 ~AccountingAllocator() = default; |
| 18 |
| 19 // Returns nullptr on failed allocation. |
| 20 void* Allocate(size_t bytes); |
| 21 void Free(void* memory, size_t bytes); |
| 22 |
| 23 size_t GetCurrentMemoryUsage() const; |
| 24 |
| 25 private: |
| 26 AtomicWord current_memory_usage_ = 0; |
| 27 |
| 28 DISALLOW_COPY_AND_ASSIGN(AccountingAllocator); |
| 29 }; |
| 30 |
| 31 } // namespace base |
| 32 } // namespace v8 |
| 33 |
| 34 #endif // V8_BASE_ACCOUNTING_ALLOCATOR_H_ |
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