1 /* 2 * Copyright (c) 2023-2024 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 #ifndef CLOUD_FILE_DAEMON_FILE_OPERATIONS_HELPER_H 16 #define CLOUD_FILE_DAEMON_FILE_OPERATIONS_HELPER_H 17 18 #include "cloud_disk_inode.h" 19 20 namespace OHOS { 21 namespace FileManagement { 22 namespace CloudDisk { 23 class FileOperationsHelper { 24 public: 25 static int32_t GetNextLayer(std::shared_ptr<CloudDiskInode> inoPtr, fuse_ino_t parent); 26 static int32_t GetFixedLayerRootId(int32_t layer); 27 static std::string GetCloudDiskRootPath(int32_t userId); 28 static std::string GetCloudDiskLocalPath(int32_t userId, std::string fileName); 29 static void GetInodeAttr(std::shared_ptr<CloudDiskInode> ino, struct stat *statBuf); 30 static std::shared_ptr<CloudDiskInode> FindCloudDiskInode(struct CloudDiskFuseData *data, 31 int64_t key); 32 static std::shared_ptr<CloudDiskFile> FindCloudDiskFile(struct CloudDiskFuseData *data, 33 int64_t key); 34 static int64_t FindLocalId(struct CloudDiskFuseData *data, const std::string &key); 35 static void AddDirEntry(fuse_req_t req, std::string &buf, size_t &size, const char *name, 36 std::shared_ptr<CloudDiskInode> ino); 37 static void FuseReplyLimited(fuse_req_t req, const char *buf, size_t bufSize, 38 off_t off, size_t maxSize); 39 static void PutCloudDiskInode(struct CloudDiskFuseData *data, 40 std::shared_ptr<CloudDiskInode> inoPtr, uint64_t num, int64_t key); 41 static void PutCloudDiskFile(struct CloudDiskFuseData *data, 42 std::shared_ptr<CloudDiskFile> filePtr, int64_t key); 43 static void PutLocalId(struct CloudDiskFuseData *data, 44 std::shared_ptr<CloudDiskInode> inoPtr, uint64_t num, const std::string &key); 45 static std::shared_ptr<CloudDiskInode> GenerateCloudDiskInode(struct CloudDiskFuseData *data, 46 fuse_ino_t parent, 47 const std::string &fileName, 48 const std::string &path); 49 }; 50 } // namespace CloudDisk 51 } // namespace FileManagement 52 } // namespace OHOS 53 #endif // CLOUD_FILE_DAEMON_FILE_OPERATIONS_HELPER_H 54