Remove alarm manager dependency from anomalyalarms am: 8b914c0f00 (9483816b) · Commits · e / os / android_frameworks_base

cmds/statsd/src/StatsLogProcessor.cpp

+37 −2

Original line number	Diff line number	Diff line
		@@ -120,10 +120,9 @@ static void flushProtoToBuffer(ProtoOutputStream& proto, vector<uint8_t>* outDat
		}
		}

		void StatsLogProcessor::onAnomalyAlarmFired(
		void StatsLogProcessor::processFiredAnomalyAlarmsLocked(
		const int64_t& timestampNs,
		unordered_set<sp<const InternalAlarm>, SpHash<InternalAlarm>> alarmSet) {
		std::lock_guard<std::mutex> lock(mMetricsMutex);
		for (const auto& itr : mMetricsManagers) {
		itr.second->onAnomalyAlarmFired(timestampNs, alarmSet);
		}
		@@ -431,6 +430,20 @@ void StatsLogProcessor::OnLogEvent(LogEvent* event, int64_t elapsedRealtimeNs) {
		return;
		}

		bool fireAlarm = false;
		{
		std::lock_guard<std::mutex> anomalyLock(mAnomalyAlarmMutex);
		if (mNextAnomalyAlarmTime != 0 &&
		MillisToNano(mNextAnomalyAlarmTime) <= elapsedRealtimeNs) {
		mNextAnomalyAlarmTime = 0;
		VLOG("informing anomaly alarm at time %lld", (long long)elapsedRealtimeNs);
		fireAlarm = true;
		}
		}
		if (fireAlarm) {
		informAnomalyAlarmFiredLocked(NanoToMillis(elapsedRealtimeNs));
		}

		int64_t curTimeSec = getElapsedRealtimeSec();
		if (curTimeSec - mLastPullerCacheClearTimeSec > StatsdStats::kPullerCacheClearIntervalSec) {
		mPullerManager->ClearPullerCacheIfNecessary(curTimeSec * NS_PER_SEC);
		@@ -1092,6 +1105,28 @@ void StatsLogProcessor::noteOnDiskData(const ConfigKey& key) {
		mOnDiskDataConfigs.insert(key);
		}

		void StatsLogProcessor::setAnomalyAlarm(const int64_t elapsedTimeMillis) {
		std::lock_guard<std::mutex> lock(mAnomalyAlarmMutex);
		mNextAnomalyAlarmTime = elapsedTimeMillis;
		}

		void StatsLogProcessor::cancelAnomalyAlarm() {
		std::lock_guard<std::mutex> lock(mAnomalyAlarmMutex);
		mNextAnomalyAlarmTime = 0;
		}

		void StatsLogProcessor::informAnomalyAlarmFiredLocked(const int64_t elapsedTimeMillis) {
		VLOG("StatsService::informAlarmForSubscriberTriggeringFired was called");
		std::unordered_set<sp<const InternalAlarm>, SpHash<InternalAlarm>> alarmSet =
		mAnomalyAlarmMonitor->popSoonerThan(static_cast<uint32_t>(elapsedTimeMillis / 1000));
		if (alarmSet.size() > 0) {
		VLOG("Found periodic alarm fired.");
		processFiredAnomalyAlarmsLocked(MillisToNano(elapsedTimeMillis), alarmSet);
		} else {
		ALOGW("Cannot find an periodic alarm that fired. Perhaps it was recently cancelled.");
		}
		}

		} // namespace statsd
		} // namespace os
		} // namespace android

cmds/statsd/src/StatsLogProcessor.h

+21 −5

Original line number	Diff line number	Diff line
		@@ -66,11 +66,6 @@ public:
		const DumpLatency dumpLatency,
		ProtoOutputStream* proto);

		/* Tells MetricsManager that the alarms in alarmSet have fired. Modifies anomaly alarmSet. */
		void onAnomalyAlarmFired(
		const int64_t& timestampNs,
		unordered_set<sp<const InternalAlarm>, SpHash<InternalAlarm>> alarmSet);

		/* Tells MetricsManager that the alarms in alarmSet have fired. Modifies periodic alarmSet. */
		void onPeriodicAlarmFired(
		const int64_t& timestampNs,
		@@ -148,6 +143,10 @@ public:
		// Add a specific config key to the possible configs to dump ASAP.
		void noteOnDiskData(const ConfigKey& key);

		void setAnomalyAlarm(const int64_t timeMillis);

		void cancelAnomalyAlarm();

		private:
		// For testing only.
		inline sp<AlarmMonitor> getAnomalyAlarmMonitor() const {
		@@ -160,6 +159,11 @@ private:

		mutable mutex mMetricsMutex;

		// Guards mNextAnomalyAlarmTime. A separate mutex is needed because alarms are set/cancelled
		// in the onLogEvent code path, which is locked by mMetricsMutex.
		// DO NOT acquire mMetricsMutex while holding mAnomalyAlarmMutex. This can lead to a deadlock.
		mutable mutex mAnomalyAlarmMutex;

		std::unordered_map<ConfigKey, sp<MetricsManager>> mMetricsManagers;

		std::unordered_map<ConfigKey, int64_t> mLastBroadcastTimes;
		@@ -250,6 +254,15 @@ private:
		// Reset the specified configs.
		void resetConfigsLocked(const int64_t timestampNs, const std::vector<ConfigKey>& configs);

		// An anomaly alarm should have fired.
		// Check with anomaly alarm manager to find the alarms and process the result.
		void informAnomalyAlarmFiredLocked(const int64_t elapsedTimeMillis);

		/* Tells MetricsManager that the alarms in alarmSet have fired. Modifies anomaly alarmSet. */
		void processFiredAnomalyAlarmsLocked(
		const int64_t& timestampNs,
		unordered_set<sp<const InternalAlarm>, SpHash<InternalAlarm>> alarmSet);

		// Function used to send a broadcast so that receiver for the config key can call getData
		// to retrieve the stored data.
		std::function<bool(const ConfigKey& key)> mSendBroadcast;
		@@ -276,6 +289,9 @@ private:
		//Last time we wrote metadata to disk.
		int64_t mLastMetadataWriteNs = 0;

		// The time for the next anomaly alarm for alerts.
		int64_t mNextAnomalyAlarmTime = 0;

		#ifdef VERY_VERBOSE_PRINTING
		bool mPrintAllLogs = false;
		#endif

cmds/statsd/src/StatsService.cpp

+7 −21

Original line number	Diff line number	Diff line
		@@ -91,17 +91,13 @@ Status checkUid(uid_t expectedUid) {
		StatsService::StatsService(const sp<Looper>& handlerLooper, shared_ptr<LogEventQueue> queue)
		: mAnomalyAlarmMonitor(new AlarmMonitor(
		MIN_DIFF_TO_UPDATE_REGISTERED_ALARM_SECS,
		[](const shared_ptr<IStatsCompanionService>& sc, int64_t timeMillis) {
		if (sc != nullptr) {
		sc->setAnomalyAlarm(timeMillis);
		[this](const shared_ptr<IStatsCompanionService>& /sc/, int64_t timeMillis) {
		mProcessor->setAnomalyAlarm(timeMillis);
		StatsdStats::getInstance().noteRegisteredAnomalyAlarmChanged();
		}
		},
		[](const shared_ptr<IStatsCompanionService>& sc) {
		if (sc != nullptr) {
		sc->cancelAnomalyAlarm();
		[this](const shared_ptr<IStatsCompanionService>& /sc/) {
		mProcessor->cancelAnomalyAlarm();
		StatsdStats::getInstance().noteRegisteredAnomalyAlarmChanged();
		}
		})),
		mPeriodicAlarmMonitor(new AlarmMonitor(
		MIN_DIFF_TO_UPDATE_REGISTERED_ALARM_SECS,
		@@ -977,17 +973,7 @@ Status StatsService::informOnePackageRemoved(const string& app, int32_t uid) {

		Status StatsService::informAnomalyAlarmFired() {
		ENFORCE_UID(AID_SYSTEM);

		VLOG("StatsService::informAnomalyAlarmFired was called");
		int64_t currentTimeSec = getElapsedRealtimeSec();
		std::unordered_set<sp<const InternalAlarm>, SpHash<InternalAlarm>> alarmSet =
		mAnomalyAlarmMonitor->popSoonerThan(static_cast<uint32_t>(currentTimeSec));
		if (alarmSet.size() > 0) {
		VLOG("Found an anomaly alarm that fired.");
		mProcessor->onAnomalyAlarmFired(currentTimeSec * NS_PER_SEC, alarmSet);
		} else {
		VLOG("Cannot find an anomaly alarm that fired. Perhaps it was recently cancelled.");
		}
		// Anomaly alarms are handled internally now. This code should be fully deleted.
		return Status::ok();
		}

cmds/statsd/src/StatsService.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -404,6 +404,10 @@ private:
		FRIEND_TEST(PartialBucketE2eTest, TestGaugeMetricOnBootWithoutMinPartialBucket);
		FRIEND_TEST(PartialBucketE2eTest, TestGaugeMetricWithoutMinPartialBucket);
		FRIEND_TEST(PartialBucketE2eTest, TestGaugeMetricWithMinPartialBucket);

		FRIEND_TEST(AnomalyDetectionE2eTest, TestDurationMetric_SUM_single_bucket);
		FRIEND_TEST(AnomalyDetectionE2eTest, TestDurationMetric_SUM_multiple_buckets);
		FRIEND_TEST(AnomalyDetectionE2eTest, TestDurationMetric_SUM_long_refractory_period);
		};

		} // namespace statsd