| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_SENSOR_DEVICE_UTIL |
| #define ANDROID_SENSOR_DEVICE_UTIL |
| |
| #include <android/hidl/manager/1.0/IServiceNotification.h> |
| |
| #include <condition_variable> |
| #include <thread> |
| |
| using ::android::hardware::hidl_string; |
| using ::android::hardware::Return; |
| using ::android::hidl::manager::V1_0::IServiceNotification; |
| |
| namespace android { |
| namespace SensorDeviceUtils { |
| |
| class HidlServiceRegistrationWaiter : public IServiceNotification { |
| public: |
| |
| HidlServiceRegistrationWaiter(); |
| |
| Return<void> onRegistration(const hidl_string &fqName, |
| const hidl_string &name, |
| bool preexisting) override; |
| |
| void reset(); |
| |
| /** |
| * Wait for service restart |
| * |
| * @return true if service is restart since last reset(); false otherwise. |
| */ |
| bool wait(); |
| private: |
| const bool mRegistered; |
| |
| std::mutex mLock; |
| std::condition_variable mCondition; |
| bool mRestartObserved; |
| }; |
| |
| } // namespace SensorDeviceUtils |
| } // namespace android; |
| |
| #endif // ANDROID_SENSOR_SERVICE_UTIL |