1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_APEXD_APEXD_CHECKPOINT_VOLD_H_ 18 #define ANDROID_APEXD_APEXD_CHECKPOINT_VOLD_H_ 19 20 #include <string> 21 22 #include <utils/StrongPointer.h> 23 24 #include "apexd_checkpoint.h" 25 26 #include <android-base/result.h> 27 28 namespace android { 29 30 namespace os { 31 class IVold; 32 } 33 34 namespace apex { 35 36 class VoldCheckpointInterface : public CheckpointInterface { 37 public: 38 ~VoldCheckpointInterface(); 39 40 android::base::Result<bool> SupportsFsCheckpoints() override; 41 42 android::base::Result<bool> NeedsCheckpoint() override; 43 android::base::Result<bool> NeedsRollback() override; 44 android::base::Result<void> StartCheckpoint(int32_t retry) override; 45 46 android::base::Result<void> AbortChanges(const std::string& msg, 47 bool numRetries) override; 48 49 static android::base::Result<VoldCheckpointInterface> Create(); 50 51 VoldCheckpointInterface(VoldCheckpointInterface&& other) noexcept; 52 53 private: 54 VoldCheckpointInterface(sp<os::IVold>&& vold_service); 55 56 sp<os::IVold> vold_service_; 57 bool supports_fs_checkpoints_; 58 }; 59 60 } // namespace apex 61 } // namespace android 62 63 #endif // ANDROID_APEXD_APEXD_CHECKPOINT_VOLD_H_ 64