Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 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_ |