Create Java interface to SensorService. (e3912446) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/SystemServerInitThreadPool.java

+1 −1

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		@@ -38,7 +38,7 @@ import java.util.concurrent.TimeUnit;
		/**
		* Thread pool used during initialization of system server.
		*
		* <p>System services can {@link #submit(Runnable)} tasks for execution during boot.
		* <p>System services can {@link #submit(Runnable, String)} tasks for execution during boot.
		* The pool will be shut down after {@link SystemService#PHASE_BOOT_COMPLETED}.
		*
		* <p>New tasks <em>should not</em> be submitted afterwards.

services/core/java/com/android/server/SystemService.java

+9 −1

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		@@ -70,11 +70,19 @@ public abstract class SystemService {
		/** @hide */
		protected static final boolean DEBUG_USER = false;

		/*
		/**
		* The earliest boot phase the system send to system services on boot.
		*/
		public static final int PHASE_WAIT_FOR_DEFAULT_DISPLAY = 100;

		/**
		* Boot phase that blocks on SensorService availability. The service gets started
		* asynchronously since it may take awhile to actually finish initializing.
		*
		* @hide
		*/
		public static final int PHASE_WAIT_FOR_SENSOR_SERVICE = 200;

		/**
		* After receiving this boot phase, services can obtain lock settings data.
		*/

services/core/java/com/android/server/sensors/SensorService.java

0 → 100644

+64 −0

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		/*
		* Copyright (C) 2021 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.server.sensors;

		import android.content.Context;

		import com.android.internal.annotations.GuardedBy;
		import com.android.internal.util.ConcurrentUtils;
		import com.android.server.SystemServerInitThreadPool;
		import com.android.server.SystemService;
		import com.android.server.utils.TimingsTraceAndSlog;

		import java.util.concurrent.Future;

		public class SensorService extends SystemService {
		private static final String START_NATIVE_SENSOR_SERVICE = "StartNativeSensorService";
		private final Object mLock = new Object();
		@GuardedBy("mLock")
		private Future<?> mSensorServiceStart;


		/** Start the sensor service. This is a blocking call and can take time. */
		private static native void startNativeSensorService();

		public SensorService(Context ctx) {
		super(ctx);
		synchronized (mLock) {
		mSensorServiceStart = SystemServerInitThreadPool.submit(() -> {
		TimingsTraceAndSlog traceLog = TimingsTraceAndSlog.newAsyncLog();
		traceLog.traceBegin(START_NATIVE_SENSOR_SERVICE);
		startNativeSensorService();
		traceLog.traceEnd();
		}, START_NATIVE_SENSOR_SERVICE);
		}
		}

		@Override
		public void onStart() { }

		@Override
		public void onBootPhase(int phase) {
		if (phase == SystemService.PHASE_WAIT_FOR_SENSOR_SERVICE) {
		ConcurrentUtils.waitForFutureNoInterrupt(mSensorServiceStart,
		START_NATIVE_SENSOR_SERVICE);
		synchronized (mLock) {
		mSensorServiceStart = null;
		}
		}
		}
		}

services/core/jni/Android.bp

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		@@ -70,6 +70,7 @@ cc_library_static {
		"com_android_server_PersistentDataBlockService.cpp",
		"com_android_server_am_LowMemDetector.cpp",
		"com_android_server_pm_PackageManagerShellCommandDataLoader.cpp",
		"com_android_server_sensor_SensorService.cpp",
		"onload.cpp",
		":lib_cachedAppOptimizer_native",
		":lib_networkStatsFactory_native",

services/core/jni/com_android_server_SystemServer.cpp

+0 −13

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		@@ -32,7 +32,6 @@

		#include <memtrackproxy/MemtrackProxy.h>
		#include <schedulerservice/SchedulingPolicyService.h>
		#include <sensorservice/SensorService.h>
		#include <sensorservicehidl/SensorManager.h>
		#include <stats/StatsAidl.h>
		#include <stats/StatsHal.h>
		@@ -41,12 +40,10 @@
		#include <bionic/reserved_signals.h>

		#include <android-base/properties.h>
		#include <cutils/properties.h>
		#include <utils/Log.h>
		#include <utils/misc.h>
		#include <utils/AndroidThreads.h>

		using android::base::GetIntProperty;
		using namespace std::chrono_literals;

		namespace {
		@@ -81,15 +78,6 @@ static void android_server_SystemServer_startIStatsService(JNIEnv* /* env */, jo
		startStatsAidlService();
		}

		static void android_server_SystemServer_startSensorService(JNIEnv* /* env /, jobject / clazz */) {
		char propBuf[PROPERTY_VALUE_MAX];
		property_get("system_init.startsensorservice", propBuf, "1");
		if (strcmp(propBuf, "1") == 0) {
		SensorService::publish(false /* allowIsolated */,
		IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL);
		}
		}

		static void android_server_SystemServer_startMemtrackProxyService(JNIEnv* env,
		jobject /* clazz */) {
		using aidl::android::hardware::memtrack::MemtrackProxy;
		@@ -163,7 +151,6 @@ static void android_server_SystemServer_setIncrementalServiceSystemReady(JNIEnv*
		static const JNINativeMethod gMethods[] = {
		/* name, signature, funcPtr */
		{"startIStatsService", "()V", (void*)android_server_SystemServer_startIStatsService},
		{"startSensorService", "()V", (void*)android_server_SystemServer_startSensorService},
		{"startMemtrackProxyService", "()V",
		(void*)android_server_SystemServer_startMemtrackProxyService},
		{"startHidlServices", "()V", (void*)android_server_SystemServer_startHidlServices},