1 /* 2 * Copyright (C) 2017 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_STARTBOOTANIMTHREAD_H 18 #define ANDROID_STARTBOOTANIMTHREAD_H 19 20 #include <stddef.h> 21 22 #include <utils/Mutex.h> 23 #include <utils/Thread.h> 24 25 namespace android { 26 27 class StartPropertySetThread : public Thread { 28 // Boot animation is triggered via calls to "property_set()" which can block 29 // if init's executing slow operation such as 'mount_all --late' (currently 30 // happening 1/10th with fsck) concurrently. Running in a separate thread 31 // allows to pursue the SurfaceFlinger's init process without blocking. 32 // see b/34499826. 33 // Any property_set() will block during init stage so need to be offloaded 34 // to this thread. see b/63844978. 35 public: 36 explicit StartPropertySetThread(bool timestampPropertyValue); 37 status_t Start(); 38 private: 39 virtual bool threadLoop(); 40 static constexpr const char* kTimestampProperty = "service.sf.present_timestamp"; 41 const bool mTimestampPropertyValue; 42 }; 43 44 } 45 46 #endif // ANDROID_STARTBOOTANIMTHREAD_H 47