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 OHOS_STORAGE_DAEMON_DISK_MANAGER_H 17 #define OHOS_STORAGE_DAEMON_DISK_MANAGER_H 18 19 #include <mutex> 20 #include <nocopyable.h> 21 22 #include "disk/disk_config.h" 23 #include "disk/disk_info.h" 24 #include "netlink/netlink_data.h" 25 26 namespace OHOS { 27 namespace StorageDaemon { 28 class DiskManager final { 29 public: Instance(void)30 static DiskManager &Instance(void) 31 { 32 static DiskManager instance; 33 return instance; 34 } 35 36 virtual ~DiskManager(); 37 void CreateDisk(std::shared_ptr<DiskInfo> &diskInfo); 38 void DestroyDisk(dev_t device); 39 void ChangeDisk(dev_t device, NetlinkData *data); 40 std::shared_ptr<DiskInfo> GetDisk(dev_t device); 41 void HandleDiskEvent(NetlinkData *data); 42 int32_t HandlePartition(std::string diskId); 43 void AddDiskConfig(std::shared_ptr<DiskConfig> &diskConfig); 44 void ReplayUevent(); 45 std::shared_ptr<DiskInfo> MatchConfig(NetlinkData *data); 46 47 private: 48 DiskManager() = default; 49 50 std::mutex lock_; 51 std::list<std::shared_ptr<DiskInfo>> disk_; 52 std::list<std::shared_ptr<DiskConfig>> diskConfig_; 53 54 DISALLOW_COPY_AND_MOVE(DiskManager); 55 56 const std::string sysBlockPath_ = "/sys/block"; 57 }; 58 } // STORAGE_DAEMON 59 } // OHOS 60 61 #endif // OHOS_STORAGE_DAEMON_DISK_MANAGER_H 62