1 /* 2 * Copyright (c) 2021 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 SHARE_MEMORY_ALLOCATOR_H 17 #define SHARE_MEMORY_ALLOCATOR_H 18 19 #include <map> 20 #include "share_memory_block.h" 21 #include "logging.h" 22 23 using ShareMemoryBlockPtr = STD_PTR(shared, ShareMemoryBlock); 24 25 class ShareMemoryAllocator { 26 public: 27 EXPORT_API static ShareMemoryAllocator& GetInstance(); 28 29 EXPORT_API ShareMemoryBlockPtr CreateMemoryBlockLocal(std::string name, uint32_t size); 30 31 EXPORT_API ShareMemoryBlockPtr CreateMemoryBlockRemote(std::string name, uint32_t size, int fd); 32 33 EXPORT_API bool ReleaseMemoryBlockLocal(std::string name); 34 35 EXPORT_API bool ReleaseMemoryBlockRemote(std::string name); 36 37 EXPORT_API ShareMemoryBlockPtr FindMemoryBlockByName(std::string name); 38 private: 39 ShareMemoryAllocator(); 40 ~ShareMemoryAllocator(); 41 42 std::map<std::string, ShareMemoryBlockPtr> memoryBlocks; 43 }; 44 45 #endif