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Diffstat (limited to 'service/java/com/android/permission/util/BackgroundThread.java')
-rw-r--r-- | service/java/com/android/permission/util/BackgroundThread.java | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/service/java/com/android/permission/util/BackgroundThread.java b/service/java/com/android/permission/util/BackgroundThread.java deleted file mode 100644 index 7308eec98..000000000 --- a/service/java/com/android/permission/util/BackgroundThread.java +++ /dev/null @@ -1,93 +0,0 @@ -/* - * 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.permission.util; - -import android.annotation.NonNull; -import android.os.Handler; -import android.os.HandlerExecutor; -import android.os.HandlerThread; - -import com.android.internal.annotations.GuardedBy; - -import java.util.concurrent.Executor; - -/** - * Shared singleton background thread. - */ -public class BackgroundThread extends HandlerThread { - private static final Object sLock = new Object(); - - @GuardedBy("sLock") - private static BackgroundThread sInstance; - @GuardedBy("sLock") - private static Handler sHandler; - @GuardedBy("sLock") - private static Executor sExecutor; - - private BackgroundThread() { - super(BackgroundThread.class.getName()); - } - - @GuardedBy("sLock") - private static void ensureInstanceLocked() { - if (sInstance == null) { - sInstance = new BackgroundThread(); - sInstance.start(); - sHandler = new Handler(sInstance.getLooper()); - sExecutor = new HandlerExecutor(sHandler); - } - } - - /** - * Get the singleton instance of thi class. - * - * @return the singleton instance of thi class - */ - @NonNull - public static BackgroundThread get() { - synchronized (sLock) { - ensureInstanceLocked(); - return sInstance; - } - } - - /** - * Get the {@link Handler} for this thread. - * - * @return the {@link Handler} for this thread. - */ - @NonNull - public static Handler getHandler() { - synchronized (sLock) { - ensureInstanceLocked(); - return sHandler; - } - } - - /** - * Get the {@link Executor} for this thread. - * - * @return the {@link Executor} for this thread. - */ - @NonNull - public static Executor getExecutor() { - synchronized (sLock) { - ensureInstanceLocked(); - return sExecutor; - } - } -} |