1 /* 2 * Copyright (c) Huawei Technologies Co., Ltd. 2021. All rights reserved. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef PAGED_MEM_POOL_H 16 #define PAGED_MEM_POOL_H 17 18 #include <set> 19 #include <vector> 20 #include "ftrace_namespace.h" 21 22 FTRACE_NS_BEGIN 23 class PagedMemPool { 24 public: 25 PagedMemPool(size_t pagePerBlock = 1, size_t maxCacheSize = 0); 26 ~PagedMemPool(); 27 28 void* Allocate(); 29 30 bool Recycle(void* block); 31 32 size_t GetBlockSize() const; 33 34 private: 35 DISALLOW_COPY_AND_MOVE(PagedMemPool); 36 bool Free(void* block); 37 bool Valid(void* block); 38 39 private: 40 size_t blockSize_ = 1; 41 size_t maxCacheSize_ = 0; 42 std::vector<void*> freeList_; 43 std::set<void*> blockSet_; 44 }; 45 FTRACE_NS_END 46 47 #endif // PAGED_MEM_POOL_H