EventThread.h revision 23748668d33ac850e64d87e25ac4cc78679c9384
1/* 2 * Copyright (C) 2011 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_SURFACE_FLINGER_EVENT_THREAD_H 18#define ANDROID_SURFACE_FLINGER_EVENT_THREAD_H 19 20#include <stdint.h> 21#include <sys/types.h> 22 23#include <gui/IDisplayEventConnection.h> 24 25#include <utils/Errors.h> 26#include <utils/threads.h> 27#include <utils/SortedVector.h> 28 29#include "DisplayEventConnection.h" 30 31// --------------------------------------------------------------------------- 32 33namespace android { 34 35// --------------------------------------------------------------------------- 36 37class SurfaceFlinger; 38class DisplayHardware; 39 40// --------------------------------------------------------------------------- 41 42class EventThread : public Thread { 43 friend class DisplayEventConnection; 44 45public: 46 EventThread(const sp<SurfaceFlinger>& flinger); 47 48 status_t registerDisplayEventConnection( 49 const sp<DisplayEventConnection>& connection); 50 51 status_t unregisterDisplayEventConnection( 52 const wp<DisplayEventConnection>& connection); 53 54 void dump(String8& result, char* buffer, size_t SIZE) const; 55 56private: 57 virtual bool threadLoop(); 58 virtual status_t readyToRun(); 59 virtual void onFirstRef(); 60 61 status_t removeDisplayEventConnection( 62 const wp<DisplayEventConnection>& connection); 63 64 // constants 65 sp<SurfaceFlinger> mFlinger; 66 const DisplayHardware& mHw; 67 68 mutable Mutex mLock; 69 mutable Condition mCondition; 70 71 // protected by mLock 72 SortedVector<wp<DisplayEventConnection> > mDisplayEventConnections; 73 size_t mDeliveredEvents; 74}; 75 76// --------------------------------------------------------------------------- 77 78}; // namespace android 79 80// --------------------------------------------------------------------------- 81 82#endif /* ANDROID_SURFACE_FLINGER_EVENT_THREAD_H */ 83