diff options
Diffstat (limited to 'libs')
2 files changed, 59 insertions, 0 deletions
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/common/annotations/ShellBackgroundThread.java b/libs/WindowManager/Shell/src/com/android/wm/shell/common/annotations/ShellBackgroundThread.java new file mode 100644 index 000000000000..4cd3c903f2f8 --- /dev/null +++ b/libs/WindowManager/Shell/src/com/android/wm/shell/common/annotations/ShellBackgroundThread.java @@ -0,0 +1,33 @@ +/* + * 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.wm.shell.common.annotations; + + +import java.lang.annotation.Documented; +import java.lang.annotation.Inherited; +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; + +import javax.inject.Qualifier; + +/** Annotates a method or qualifies a provider that runs on the shared background thread */ +@Documented +@Inherited +@Qualifier +@Retention(RetentionPolicy.RUNTIME) +public @interface ShellBackgroundThread { +} diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/dagger/WMShellConcurrencyModule.java b/libs/WindowManager/Shell/src/com/android/wm/shell/dagger/WMShellConcurrencyModule.java index 8f9636c0bb30..cc741d3896a2 100644 --- a/libs/WindowManager/Shell/src/com/android/wm/shell/dagger/WMShellConcurrencyModule.java +++ b/libs/WindowManager/Shell/src/com/android/wm/shell/dagger/WMShellConcurrencyModule.java @@ -16,6 +16,7 @@ package com.android.wm.shell.dagger; +import static android.os.Process.THREAD_PRIORITY_BACKGROUND; import static android.os.Process.THREAD_PRIORITY_DISPLAY; import static android.os.Process.THREAD_PRIORITY_TOP_APP_BOOST; @@ -36,6 +37,7 @@ import com.android.wm.shell.common.ShellExecutor; import com.android.wm.shell.common.annotations.ChoreographerSfVsync; import com.android.wm.shell.common.annotations.ExternalMainThread; import com.android.wm.shell.common.annotations.ShellAnimationThread; +import com.android.wm.shell.common.annotations.ShellBackgroundThread; import com.android.wm.shell.common.annotations.ShellMainThread; import com.android.wm.shell.common.annotations.ShellSplashscreenThread; @@ -195,4 +197,28 @@ public abstract class WMShellConcurrencyModule { throw new RuntimeException("Failed to initialize SfVsync animation handler in 1s", e); } } + + /** + * Provides a Shell background thread Handler for low priority background tasks. + */ + @WMSingleton + @Provides + @ShellBackgroundThread + public static Handler provideSharedBackgroundHandler() { + HandlerThread shellBackgroundThread = new HandlerThread("wmshell.background", + THREAD_PRIORITY_BACKGROUND); + shellBackgroundThread.start(); + return shellBackgroundThread.getThreadHandler(); + } + + /** + * Provides a Shell background thread Executor for low priority background tasks. + */ + @WMSingleton + @Provides + @ShellBackgroundThread + public static ShellExecutor provideSharedBackgroundExecutor( + @ShellBackgroundThread Handler handler) { + return new HandlerExecutor(handler); + } } |