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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 java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;
/**
* A sub-class of {@link Executor} that allows Runnables to be delayed and/or cancelled.
*/
public interface DelayableExecutor extends Executor {
/**
* Execute supplied Runnable on the Executors thread after a specified delay.
*
* See {@link android.os.Handler#postDelayed(Runnable, long)}.
*
* @return A Runnable that, when run, removes the supplied argument from the Executor queue.
*/
default Runnable executeDelayed(Runnable r, long delayMillis) {
return executeDelayed(r, delayMillis, TimeUnit.MILLISECONDS);
}
/**
* Execute supplied Runnable on the Executors thread after a specified delay.
*
* See {@link android.os.Handler#postDelayed(Runnable, long)}.
*
* @return A Runnable that, when run, removes the supplied argument from the Executor queue..
*/
Runnable executeDelayed(Runnable r, long delay, TimeUnit unit);
/**
* Execute supplied Runnable on the Executors thread at a specified uptime.
*
* See {@link android.os.Handler#postAtTime(Runnable, long)}.
*
* @return A Runnable that, when run, removes the supplied argument from the Executor queue.
*/
default Runnable executeAtTime(Runnable r, long uptime) {
return executeAtTime(r, uptime, TimeUnit.MILLISECONDS);
}
/**
* Execute supplied Runnable on the Executors thread at a specified uptime.
*
* See {@link android.os.Handler#postAtTime(Runnable, long)}.
*
* @return A Runnable that, when run, removes the supplied argument from the Executor queue.
*/
Runnable executeAtTime(Runnable r, long uptimeMillis, TimeUnit unit);
}
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