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/*
* Copyright (C) 2019 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.util.concurrency;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Process;
import com.android.systemui.dagger.SysUISingleton;
import com.android.systemui.dagger.qualifiers.Background;
import com.android.systemui.dagger.qualifiers.LongRunning;
import com.android.systemui.dagger.qualifiers.Main;
import com.android.systemui.dagger.qualifiers.UiBackground;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import dagger.Module;
import dagger.Provides;
/**
* Dagger Module for classes found within the concurrent package.
*/
@Module
public abstract class SysUIConcurrencyModule {
/** Background Looper */
@Provides
@SysUISingleton
@Background
public static Looper provideBgLooper() {
HandlerThread thread = new HandlerThread("SysUiBg",
Process.THREAD_PRIORITY_BACKGROUND);
thread.start();
return thread.getLooper();
}
/** Long running tasks Looper */
@Provides
@SysUISingleton
@LongRunning
public static Looper provideLongRunningLooper() {
HandlerThread thread = new HandlerThread("SysUiLng",
Process.THREAD_PRIORITY_BACKGROUND);
thread.start();
return thread.getLooper();
}
/**
* Background Handler.
*
* Prefer the Background Executor when possible.
*/
@Provides
@Background
public static Handler provideBgHandler(@Background Looper bgLooper) {
return new Handler(bgLooper);
}
/**
* Provide a Background-Thread Executor by default.
*/
@Provides
@SysUISingleton
public static Executor provideExecutor(@Background Looper looper) {
return new ExecutorImpl(looper);
}
/**
* Provide a Long running Executor by default.
*/
@Provides
@SysUISingleton
@LongRunning
public static Executor provideLongRunningExecutor(@LongRunning Looper looper) {
return new ExecutorImpl(looper);
}
/**
* Provide a Background-Thread Executor.
*/
@Provides
@SysUISingleton
@Background
public static Executor provideBackgroundExecutor(@Background Looper looper) {
return new ExecutorImpl(looper);
}
/**
* Provide a Background-Thread Executor by default.
*/
@Provides
@SysUISingleton
public static DelayableExecutor provideDelayableExecutor(@Background Looper looper) {
return new ExecutorImpl(looper);
}
/**
* Provide a Background-Thread Executor.
*/
@Provides
@SysUISingleton
@Background
public static DelayableExecutor provideBackgroundDelayableExecutor(@Background Looper looper) {
return new ExecutorImpl(looper);
}
/**
* Provide a Background-Thread Executor by default.
*/
@Provides
@SysUISingleton
public static RepeatableExecutor provideRepeatableExecutor(@Background DelayableExecutor exec) {
return new RepeatableExecutorImpl(exec);
}
/**
* Provide a Background-Thread Executor.
*/
@Provides
@SysUISingleton
@Background
public static RepeatableExecutor provideBackgroundRepeatableExecutor(
@Background DelayableExecutor exec) {
return new RepeatableExecutorImpl(exec);
}
/**
* Provide a Main-Thread Executor.
*/
@Provides
@SysUISingleton
@Main
public static RepeatableExecutor provideMainRepeatableExecutor(@Main DelayableExecutor exec) {
return new RepeatableExecutorImpl(exec);
}
/**
* Provide an Executor specifically for running UI operations on a separate thread.
*
* Keep submitted runnables short and to the point, just as with any other UI code.
*/
@Provides
@SysUISingleton
@UiBackground
public static Executor provideUiBackgroundExecutor() {
return Executors.newSingleThreadExecutor();
}
/** */
@Provides
@Main
public static MessageRouter providesMainMessageRouter(
@Main DelayableExecutor executor) {
return new MessageRouterImpl(executor);
}
/** */
@Provides
@Background
public static MessageRouter providesBackgroundMessageRouter(
@Background DelayableExecutor executor) {
return new MessageRouterImpl(executor);
}
}
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