monix.execution.schedulers.ShiftedRunnable.scala Maven / Gradle / Ivy
The newest version!
/*
* Copyright (c) 2014-2019 by The Monix Project Developers.
* See the project homepage at: https://monix.io
*
* 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 monix.execution.schedulers
import monix.execution.Scheduler
/** Runnable that defers the execution of the given reference
* with an `executeAsync`.
*
* This is useful for example when implementing `scheduleOnce`,
* to introduce a boundary between the scheduling and the execution,
* otherwise risk executing the runnable on the wrong thread-pool.
*
* @param r is the runnable to execute
* @param s is the scheduler that does the execution
*/
final class ShiftedRunnable(r: Runnable, s: Scheduler) extends Runnable {
override def run() =
r match {
case ref: TrampolinedRunnable =>
// Cannot run directly, otherwise we risk a trampolined
// execution on the current thread and call stack and that
// isn't what we want
s.execute(new StartAsyncBatchRunnable(ref, s))
case _ =>
s.execute(r)
}
}