Dump information about recent input events. (6876f321) · Commits · e / os / android_frameworks_base

services/input/InputDispatcher.cpp

+58 −6

Original line number	Diff line number	Diff line
		@@ -84,6 +84,8 @@ const nsecs_t STREAM_AHEAD_EVENT_TIMEOUT = 500 * 1000000LL; // 0.5sec
		// Log a warning when an event takes longer than this to process, even if an ANR does not occur.
		const nsecs_t SLOW_EVENT_PROCESSING_WARNING_TIMEOUT = 2000 * 1000000LL; // 2sec

		// Number of recent events to keep for debugging purposes.
		const size_t RECENT_QUEUE_MAX_SIZE = 10;

		static inline nsecs_t now() {
		return systemTime(SYSTEM_TIME_MONOTONIC);
		@@ -455,6 +457,14 @@ bool InputDispatcher::enqueueInboundEventLocked(EventEntry* entry) {
		return needWake;
		}

		void InputDispatcher::addRecentEventLocked(EventEntry* entry) {
		entry->refCount += 1;
		mRecentQueue.enqueueAtTail(entry);
		if (mRecentQueue.count() > RECENT_QUEUE_MAX_SIZE) {
		mRecentQueue.dequeueAtHead()->release();
		}
		}

		sp<InputWindowHandle> InputDispatcher::findTouchedWindowAtLocked(int32_t displayId,
		int32_t x, int32_t y) {
		// Traverse windows from front to back to find touched window.
		@@ -624,6 +634,7 @@ void InputDispatcher::releaseInboundEventLocked(EventEntry* entry) {
		if (entry == mNextUnblockedEvent) {
		mNextUnblockedEvent = NULL;
		}
		addRecentEventLocked(entry);
		entry->release();
		}

		@@ -3161,6 +3172,31 @@ void InputDispatcher::dumpDispatchStateLocked(String8& dump) {

		nsecs_t currentTime = now();

		// Dump recently dispatched or dropped events from oldest to newest.
		if (!mRecentQueue.isEmpty()) {
		dump.appendFormat(INDENT "RecentQueue: length=%u\n", mRecentQueue.count());
		for (EventEntry* entry = mRecentQueue.head; entry; entry = entry->next) {
		dump.append(INDENT2);
		entry->appendDescription(dump);
		dump.appendFormat(", age=%0.1fms\n",
		(currentTime - entry->eventTime) * 0.000001f);
		}
		} else {
		dump.append(INDENT "RecentQueue: <empty>\n");
		}

		// Dump event currently being dispatched.
		if (mPendingEvent) {
		dump.append(INDENT "PendingEvent:\n");
		dump.append(INDENT2);
		mPendingEvent->appendDescription(dump);
		dump.appendFormat(", age=%0.1fms\n",
		(currentTime - mPendingEvent->eventTime) * 0.000001f);
		} else {
		dump.append(INDENT "PendingEvent: <none>\n");
		}

		// Dump inbound events from oldest to newest.
		if (!mInboundQueue.isEmpty()) {
		dump.appendFormat(INDENT "InboundQueue: length=%u\n", mInboundQueue.count());
		for (EventEntry* entry = mInboundQueue.head; entry; entry = entry->next) {
		@@ -3809,7 +3845,8 @@ InputDispatcher::ConfigurationChangedEntry::~ConfigurationChangedEntry() {
		}

		void InputDispatcher::ConfigurationChangedEntry::appendDescription(String8& msg) const {
		msg.append("ConfigurationChangedEvent()");
		msg.append("ConfigurationChangedEvent(), policyFlags=0x%08x",
		policyFlags);
		}


		@@ -3824,7 +3861,8 @@ InputDispatcher::DeviceResetEntry::~DeviceResetEntry() {
		}

		void InputDispatcher::DeviceResetEntry::appendDescription(String8& msg) const {
		msg.appendFormat("DeviceResetEvent(deviceId=%d)", deviceId);
		msg.appendFormat("DeviceResetEvent(deviceId=%d), policyFlags=0x%08x",
		deviceId, policyFlags);
		}


		@@ -3846,8 +3884,11 @@ InputDispatcher::KeyEntry::~KeyEntry() {
		}

		void InputDispatcher::KeyEntry::appendDescription(String8& msg) const {
		msg.appendFormat("KeyEvent(action=%d, deviceId=%d, source=0x%08x)",
		action, deviceId, source);
		msg.appendFormat("KeyEvent(deviceId=%d, source=0x%08x, action=%d, "
		"flags=0x%08x, keyCode=%d, scanCode=%d, metaState=0x%08x, "
		"repeatCount=%d), policyFlags=0x%08x",
		deviceId, source, action, flags, keyCode, scanCode, metaState,
		repeatCount, policyFlags);
		}

		void InputDispatcher::KeyEntry::recycle() {
		@@ -3884,8 +3925,19 @@ InputDispatcher::MotionEntry::~MotionEntry() {
		}

		void InputDispatcher::MotionEntry::appendDescription(String8& msg) const {
		msg.appendFormat("MotionEvent(action=%d, deviceId=%d, source=0x%08x, displayId=%d)",
		action, deviceId, source, displayId);
		msg.appendFormat("MotionEvent(deviceId=%d, source=0x%08x, action=%d, "
		"flags=0x%08x, metaState=0x%08x, buttonState=0x%08x, edgeFlags=0x%08x, "
		"xPrecision=%.1f, yPrecision=%.1f, displayId=%d, pointers=[",
		deviceId, source, action, flags, metaState, buttonState, edgeFlags,
		xPrecision, yPrecision, displayId);
		for (uint32_t i = 0; i < pointerCount; i++) {
		if (i) {
		msg.append(", ");
		}
		msg.appendFormat("%d: (%.1f, %.1f)", pointerProperties[i].id,
		pointerCoords[i].getX(), pointerCoords[i].getY());
		}
		msg.appendFormat("]), policyFlags=0x%08x", policyFlags);
		}

services/input/InputDispatcher.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -846,6 +846,7 @@ private:

		EventEntry* mPendingEvent;
		Queue<EventEntry> mInboundQueue;
		Queue<EventEntry> mRecentQueue;
		Queue<CommandEntry> mCommandQueue;

		void dispatchOnceInnerLocked(nsecs_t* nextWakeupTime);
		@@ -856,6 +857,9 @@ private:
		// Cleans up input state when dropping an inbound event.
		void dropInboundEventLocked(EventEntry* entry, DropReason dropReason);

		// Adds an event to a queue of recent events for debugging purposes.
		void addRecentEventLocked(EventEntry* entry);

		// App switch latency optimization.
		bool mAppSwitchSawKeyDown;
		nsecs_t mAppSwitchDueTime;