| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef TRACKING_MEM_RES_H |
| 10 | #define TRACKING_MEM_RES_H |
| 11 | |
| 12 | #include <cstddef> |
| 13 | #include <memory_resource> |
| 14 | |
| 15 | class TrackingMemRes : public std::pmr::memory_resource { |
| 16 | public: |
| 17 | TrackingMemRes(std::size_t* last_size, size_t* last_alignment) |
| 18 | : last_size_(last_size), last_alignment_(last_alignment) {} |
| 19 | |
| 20 | private: |
| 21 | std::size_t* last_size_; |
| 22 | std::size_t* last_alignment_; |
| 23 | void* do_allocate(std::size_t size, size_t alignment) override { |
| 24 | *last_size_ = size; |
| 25 | *last_alignment_ = alignment; |
| 26 | |
| 27 | return std::pmr::new_delete_resource()->allocate(bytes: size, alignment: alignment); |
| 28 | } |
| 29 | |
| 30 | void do_deallocate(void* ptr, std::size_t size, size_t alignment) override { |
| 31 | *last_size_ = size; |
| 32 | *last_alignment_ = alignment; |
| 33 | std::pmr::new_delete_resource()->deallocate(p: ptr, bytes: size, alignment: alignment); |
| 34 | } |
| 35 | |
| 36 | bool do_is_equal(const memory_resource& ptr) const noexcept override { return &ptr == this; } |
| 37 | }; |
| 38 | |
| 39 | #endif // TRACKING_MEM_RES_H |
| 40 |