blob: 63d56e47eed7472ea3d1ddd40da8efe4d1bfc0aa [file] [log] [blame]
/*
* Copyright (C) 2016 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.launcher3.util;
import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
import android.os.Looper;
import com.android.launcher3.config.FeatureFlags;
/**
* A set of utility methods for thread verification.
*/
public class Preconditions {
public static void assertNotNull(Object o) {
if (FeatureFlags.IS_STUDIO_BUILD && o == null) {
throw new IllegalStateException();
}
}
public static void assertWorkerThread() {
if (FeatureFlags.IS_STUDIO_BUILD && !isSameLooper(MODEL_EXECUTOR.getLooper())) {
throw new IllegalStateException();
}
}
public static void assertUIThread() {
if (FeatureFlags.IS_STUDIO_BUILD && !isSameLooper(Looper.getMainLooper())) {
throw new IllegalStateException();
}
}
public static void assertNonUiThread() {
if (FeatureFlags.IS_STUDIO_BUILD && isSameLooper(Looper.getMainLooper())) {
throw new IllegalStateException();
}
}
private static boolean isSameLooper(Looper looper) {
return Looper.myLooper() == looper;
}
}