1 /** 2 * Copyright (c) 2024 Huawei Device Co., Ltd. 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 16 #ifndef MEM_MANAGER_H 17 #define MEM_MANAGER_H 18 19 #include <cstdint> 20 #include <cstddef> 21 22 namespace libabckit { 23 24 class MemManager { 25 public: 26 [[maybe_unused]] static MemManager *Initialize(size_t compilerMemSize = 0) 27 { 28 MemManager::compilerMemSize_ = compilerMemSize; 29 static auto memManager = libabckit::MemManager(); 30 if (!isInitialized_) { 31 memManager.InitializeMemory(); 32 } 33 return &memManager; 34 }; 35 36 static void Finalize(); 37 38 private: 39 void InitializeMemory(); 40 static size_t compilerMemSize_; 41 static bool isInitialized_; 42 }; 43 44 constexpr uint64_t SHIFT_KB = 10ULL; 45 constexpr uint64_t SHIFT_MB = 20ULL; 46 constexpr uint64_t SHIFT_GB = 30ULL; 47 48 constexpr uint64_t operator"" _KB(long double count) 49 { 50 return static_cast<uint64_t>(count * (1ULL << SHIFT_KB)); 51 } 52 53 // NOLINTNEXTLINE(google-runtime-int) 54 constexpr uint64_t operator"" _KB(unsigned long long count) 55 { 56 return count * (1ULL << SHIFT_KB); 57 } 58 59 constexpr uint64_t operator"" _MB(long double count) 60 { 61 return static_cast<uint64_t>(count * (1ULL << SHIFT_MB)); 62 } 63 64 // NOLINTNEXTLINE(google-runtime-int) 65 constexpr uint64_t operator"" _MB(unsigned long long count) 66 { 67 return count * (1ULL << SHIFT_MB); 68 } 69 70 constexpr uint64_t operator"" _GB(long double count) 71 { 72 return static_cast<uint64_t>(count * (1ULL << SHIFT_GB)); 73 } 74 75 // CC-OFFNXT(WordsTool.95) sensitive word conflict 76 // NOLINTNEXTLINE(google-runtime-int) 77 constexpr uint64_t operator"" _GB(unsigned long long count) 78 { 79 return count * (1ULL << SHIFT_GB); 80 } 81 82 } // namespace libabckit 83 84 #endif 85