1 /* 2 * Copyright (c) Huawei Technologies Co., Ltd. 2025. 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 ADDRESS_HANDLER_H 16 #define ADDRESS_HANDLER_H 17 #include "logging.h" 18 19 struct Bitpool { 20 std::atomic<uint64_t> slot; 21 }; 22 23 class AddressHandler { 24 public: 25 AddressHandler(uint64_t poolSize); 26 virtual ~AddressHandler(); 27 SetSuccessor(std::shared_ptr<AddressHandler> successor)28 void SetSuccessor(std::shared_ptr<AddressHandler> successor) 29 { 30 successor_ = std::move(successor); 31 } 32 33 virtual void AddAllocAddr(uint64_t addr) = 0; 34 virtual bool CheckAddr(uint64_t addr) = 0; 35 36 protected: 37 std::shared_ptr<AddressHandler> successor_ = nullptr; 38 Bitpool* addressChecker_ = nullptr; 39 uint64_t bitPoolSize_ = 0; 40 }; 41 42 class LowAddrHandler : public AddressHandler { 43 public: 44 LowAddrHandler(); 45 void AddAllocAddr(uint64_t addr) override; 46 bool CheckAddr(uint64_t addr) override; 47 //MurmurHash 48 uint32_t HashFunc(uint32_t addrKey); 49 }; 50 51 class MidAddrHandler : public AddressHandler { 52 public: 53 MidAddrHandler(); 54 void AddAllocAddr(uint64_t addr) override; 55 bool CheckAddr(uint64_t addr) override; 56 //Fnv1aHash 57 uint32_t HashFunc(uint32_t addrKey); 58 }; 59 60 class WholeAddrHandler : public AddressHandler { 61 public: 62 WholeAddrHandler(); 63 void AddAllocAddr(uint64_t addr) override; 64 bool CheckAddr(uint64_t addr) override; 65 //SplitMix64 66 uint64_t HashFunc(uint64_t addrKey); 67 }; 68 #endif