Christopher Ferris | 33c03d3 | 2015-09-11 15:34:23 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef _MEMORY_REPLAY_POINTERS_H |
| 18 | #define _MEMORY_REPLAY_POINTERS_H |
| 19 | |
| 20 | #include <stdatomic.h> |
| 21 | #include <stdint.h> |
| 22 | |
| 23 | struct pointer_data { |
| 24 | std::atomic_uintptr_t key_pointer; |
| 25 | void* pointer; |
| 26 | }; |
| 27 | |
| 28 | class Pointers { |
| 29 | public: |
Chih-Hung Hsieh | 4ee1962 | 2016-07-12 11:47:28 -0700 | [diff] [blame] | 30 | explicit Pointers(size_t max_allocs); |
Christopher Ferris | 33c03d3 | 2015-09-11 15:34:23 -0700 | [diff] [blame] | 31 | virtual ~Pointers(); |
| 32 | |
| 33 | void Add(uintptr_t key_pointer, void* pointer); |
| 34 | |
| 35 | void* Remove(uintptr_t key_pointer); |
| 36 | |
| 37 | size_t max_pointers() { return max_pointers_; } |
| 38 | |
| 39 | void FreeAll(); |
| 40 | |
| 41 | private: |
| 42 | pointer_data* FindEmpty(uintptr_t key_pointer); |
| 43 | pointer_data* Find(uintptr_t key_pointer); |
| 44 | size_t GetHash(uintptr_t key_pointer); |
| 45 | |
| 46 | pointer_data* pointers_ = nullptr; |
| 47 | size_t pointers_size_ = 0; |
| 48 | size_t max_pointers_ = 0; |
| 49 | }; |
| 50 | |
| 51 | #endif // _MEMORY_REPLAY_POINTERS_H |