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/*
* Copyright (C) 2010 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.systemui;
import android.app.Service;
import android.content.Intent;
import android.os.Build;
import android.os.Handler;
import android.os.IBinder;
import android.os.Process;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.util.Slog;
import com.android.internal.os.BinderInternal;
import com.android.systemui.broadcast.BroadcastDispatcher;
import com.android.systemui.dagger.qualifiers.Main;
import com.android.systemui.dump.DumpHandler;
import com.android.systemui.dump.LogBufferEulogizer;
import com.android.systemui.dump.LogBufferFreezer;
import com.android.systemui.dump.SystemUIAuxiliaryDumpService;
import com.android.systemui.res.R;
import com.android.systemui.shared.system.UncaughtExceptionPreHandlerManager;
import com.android.systemui.statusbar.policy.BatteryStateNotifier;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import javax.inject.Inject;
public class SystemUIService extends Service {
private final Handler mMainHandler;
private final DumpHandler mDumpHandler;
private final BroadcastDispatcher mBroadcastDispatcher;
private final LogBufferEulogizer mLogBufferEulogizer;
private final LogBufferFreezer mLogBufferFreezer;
private final BatteryStateNotifier mBatteryStateNotifier;
private final UncaughtExceptionPreHandlerManager mUncaughtExceptionPreHandlerManager;
@Inject
public SystemUIService(
@Main Handler mainHandler,
DumpHandler dumpHandler,
BroadcastDispatcher broadcastDispatcher,
LogBufferEulogizer logBufferEulogizer,
LogBufferFreezer logBufferFreezer,
BatteryStateNotifier batteryStateNotifier,
UncaughtExceptionPreHandlerManager uncaughtExceptionPreHandlerManager) {
super();
mMainHandler = mainHandler;
mDumpHandler = dumpHandler;
mBroadcastDispatcher = broadcastDispatcher;
mLogBufferEulogizer = logBufferEulogizer;
mLogBufferFreezer = logBufferFreezer;
mBatteryStateNotifier = batteryStateNotifier;
mUncaughtExceptionPreHandlerManager = uncaughtExceptionPreHandlerManager;
}
@Override
public void onCreate() {
super.onCreate();
// Start all of SystemUI
((SystemUIApplication) getApplication()).startServicesIfNeeded();
// Finish initializing dump logic
mLogBufferFreezer.attach(mBroadcastDispatcher);
// Attempt to dump all LogBuffers for any uncaught exception
mUncaughtExceptionPreHandlerManager.registerHandler(
(thread, throwable) -> mLogBufferEulogizer.record(throwable));
// If configured, set up a battery notification
if (getResources().getBoolean(R.bool.config_showNotificationForUnknownBatteryState)) {
mBatteryStateNotifier.startListening();
}
// For debugging RescueParty
if (Build.IS_DEBUGGABLE && SystemProperties.getBoolean("debug.crash_sysui", false)) {
throw new RuntimeException();
}
if (Build.IS_DEBUGGABLE) {
// b/71353150 - looking for leaked binder proxies
BinderInternal.nSetBinderProxyCountEnabled(true);
BinderInternal.nSetBinderProxyCountWatermarks(1000,900);
BinderInternal.setBinderProxyCountCallback(
new BinderInternal.BinderProxyLimitListener() {
@Override
public void onLimitReached(int uid) {
Slog.w(SystemUIApplication.TAG,
"uid " + uid + " sent too many Binder proxies to uid "
+ Process.myUid());
}
}, mMainHandler);
}
// Bind the dump service so we can dump extra info during a bug report
startServiceAsUser(
new Intent(getApplicationContext(), SystemUIAuxiliaryDumpService.class),
UserHandle.SYSTEM);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
// If no args are passed, assume we're being dumped as part of a bug report (sadly, we have
// no better way to guess whether this is taking place). Set the appropriate dump priority
// (CRITICAL) to reflect that this is taking place.
String[] massagedArgs = args;
if (args.length == 0) {
massagedArgs = new String[] {
DumpHandler.PRIORITY_ARG,
DumpHandler.PRIORITY_ARG_CRITICAL};
}
mDumpHandler.dump(fd, pw, massagedArgs);
}
}
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