1 /* 2 * Copyright (c) 2022-2024 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 OHOS_FILEMGMT_BACKUP_B_SESSION_BACKUP_H 17 #define OHOS_FILEMGMT_BACKUP_B_SESSION_BACKUP_H 18 19 #include <functional> 20 #include <memory> 21 #include <vector> 22 23 #include "b_file_info.h" 24 #include "errors.h" 25 #include "svc_death_recipient.h" 26 #include "unique_fd.h" 27 28 namespace OHOS::FileManagement::Backup { 29 class BSessionBackup { 30 public: 31 struct Callbacks { 32 std::function<void(const BFileInfo &, UniqueFd, ErrCode)> onFileReady; // 当备份服务有文件待发送时执行的回调 33 std::function<void(ErrCode, const BundleName)> onBundleStarted; // 当启动某个应用的备份流程结束时执行的回调函数 34 std::function<void(ErrCode, const BundleName)> onBundleFinished; // 当某个应用的备份流程结束或意外中止时执行的回调函数 35 std::function<void(ErrCode)> onAllBundlesFinished; // 当整个备份流程结束或意外中止时执行的回调函数 36 std::function<void(const std::string, const std::string)> onResultReport; // 某个应用备份流程中自定义错误信息的上报的回调函数 37 std::function<void()> onBackupServiceDied; // 当备份服务意外死亡时执行的回调函数 38 std::function<void(const std::string, const std::string)> onProcess; // 上报备份恢复过程中的进度和异常 39 }; 40 41 public: 42 /** 43 * @brief 获取一个用于控制备份流程的会话 44 * 45 * @param callbacks 注册回调 46 * @return std::unique_ptr<BSessionBackup> 指向会话的智能指针。失败时为空指针 47 */ 48 static std::unique_ptr<BSessionBackup> Init(Callbacks callbacks); 49 50 /** 51 * @brief 用于追加应用,现阶段仅支持在Start之前调用 52 * 53 * @param bundlesToBackup 待备份的应用清单 54 * 55 * @return ErrCode 规范错误码 56 */ 57 ErrCode AppendBundles(std::vector<BundleName> bundlesToBackup); 58 59 /** 60 * @brief 用于追加应用,现阶段仅支持在Start之前调用 61 * 62 * @param bundlesToBackup 待备份的应用清单 63 * @param detailInfos 备份所需信息 64 * 65 * @return ErrCode 规范错误码 66 */ 67 ErrCode AppendBundles(std::vector<BundleName> bundlesToBackup, std::vector<std::string> detailInfos); 68 69 /** 70 * @brief 用于结束追加应用,结束后不可在调用AppendBundles 71 * 72 * @return ErrCode 规范错误码 73 */ 74 ErrCode Finish(); 75 76 /** 77 * @brief 用于启动备份流程 78 * 79 * @return ErrCode 规范错误码 80 */ 81 ErrCode Start(); 82 83 /** 84 * @brief 用于结束服务 85 * 86 * @return ErrCode 规范错误码 87 */ 88 ErrCode Release(); 89 90 /** 91 * @brief 注册备份服务意外死亡时执行的回调函数 92 * 93 * @param functor 回调函数 94 */ 95 void RegisterBackupServiceDied(std::function<void()> functor); 96 97 public: 98 ~BSessionBackup(); 99 100 private: 101 sptr<SvcDeathRecipient> deathRecipient_; 102 }; 103 } // namespace OHOS::FileManagement::Backup 104 105 #endif // OHOS_FILEMGMT_BACKUP_B_SESSION_BACKUP_H