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SleepSystem.scala
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SleepSystem.scala
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/*
* Copyright 2020-2023 Typelevel
*
* 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 cats.effect
package unsafe
import java.util.concurrent.locks.LockSupport
object SleepSystem extends PollingSystem {
type Api = AnyRef
type Poller = AnyRef
def close(): Unit = ()
def makeApi(register: (Poller => Unit) => Unit): Api = this
def makePoller(): Poller = this
def closePoller(Poller: Poller): Unit = ()
def poll(poller: Poller, nanos: Long, reportFailure: Throwable => Unit): Boolean = {
if (nanos < 0)
LockSupport.park()
else if (nanos > 0)
LockSupport.parkNanos(nanos)
else
()
false
}
def needsPoll(poller: Poller): Boolean = false
def interrupt(targetThread: Thread, targetPoller: Poller): Unit =
LockSupport.unpark(targetThread)
}