1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.systemui.biometrics.dagger 18 19 import com.android.systemui.dagger.SysUISingleton 20 import com.android.systemui.util.concurrency.ThreadFactory 21 import dagger.Module 22 import dagger.Provides 23 import java.util.concurrent.Executor 24 import javax.inject.Qualifier 25 26 /** 27 * Dagger module for all things biometric. 28 */ 29 @Module 30 object BiometricsModule { 31 32 /** Background [Executor] for HAL related operations. */ 33 @Provides 34 @SysUISingleton 35 @JvmStatic 36 @BiometricsBackground providesPluginExecutornull37 fun providesPluginExecutor(threadFactory: ThreadFactory): Executor = 38 threadFactory.buildExecutorOnNewThread("biometrics") 39 } 40 41 /** 42 * Background executor for HAL operations that are latency sensitive but too 43 * slow to run on the main thread. Prefer the shared executors, such as 44 * [com.android.systemui.dagger.qualifiers.Background] when a HAL is not directly involved. 45 */ 46 @Qualifier 47 @MustBeDocumented 48 @Retention(AnnotationRetention.RUNTIME) 49 annotation class BiometricsBackground 50