diff --git a/services/input/InputDispatcher.cpp b/services/input/InputDispatcher.cpp index 9f0906203f846..ad64ccd55f4fb 100644 --- a/services/input/InputDispatcher.cpp +++ b/services/input/InputDispatcher.cpp @@ -238,6 +238,8 @@ void InputDispatcher::dispatchOnce() { nsecs_t nextWakeupTime = LONG_LONG_MAX; { // acquire lock AutoMutex _l(mLock); + mDispatcherIsAliveCondition.broadcast(); + dispatchOnceInnerLocked(&nextWakeupTime); if (runCommandsLockedInterruptible()) { @@ -4086,6 +4088,8 @@ void InputDispatcher::dump(String8& dump) { void InputDispatcher::monitor() { // Acquire and release the lock to ensure that the dispatcher has not deadlocked. mLock.lock(); + mLooper->wake(); + mDispatcherIsAliveCondition.wait(mLock); mLock.unlock(); } diff --git a/services/input/InputDispatcher.h b/services/input/InputDispatcher.h index 1478d67f825fa..a1d42e1bfa8d9 100644 --- a/services/input/InputDispatcher.h +++ b/services/input/InputDispatcher.h @@ -862,6 +862,8 @@ private: Mutex mLock; + Condition mDispatcherIsAliveCondition; + sp mLooper; EventEntry* mPendingEvent; diff --git a/services/input/InputReader.cpp b/services/input/InputReader.cpp index fa0b3d8ee1dac..4be06e43d112e 100644 --- a/services/input/InputReader.cpp +++ b/services/input/InputReader.cpp @@ -278,17 +278,20 @@ void InputReader::loopOnce() { { // acquire lock AutoMutex _l(mLock); + mReaderIsAliveCondition.broadcast(); if (count) { processEventsLocked(mEventBuffer, count); } if (!count || timeoutMillis == 0) { nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); + if (now >= mNextTimeout) { #if DEBUG_RAW_EVENTS - ALOGD("Timeout expired, latency=%0.3fms", (now - mNextTimeout) * 0.000001f); + ALOGD("Timeout expired, latency=%0.3fms", (now - mNextTimeout) * 0.000001f); #endif - mNextTimeout = LLONG_MAX; - timeoutExpiredLocked(now); + mNextTimeout = LLONG_MAX; + timeoutExpiredLocked(now); + } } } // release lock @@ -772,6 +775,8 @@ void InputReader::dump(String8& dump) { void InputReader::monitor() { // Acquire and release the lock to ensure that the reader has not deadlocked. mLock.lock(); + mEventHub->wake(); + mReaderIsAliveCondition.wait(mLock); mLock.unlock(); // Check the EventHub diff --git a/services/input/InputReader.h b/services/input/InputReader.h index a122c970b2821..ad89a222293ef 100644 --- a/services/input/InputReader.h +++ b/services/input/InputReader.h @@ -363,6 +363,8 @@ protected: private: Mutex mLock; + Condition mReaderIsAliveCondition; + sp mEventHub; sp mPolicy; sp mQueuedListener;