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Remove util.Execution.withTimeout #798

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Remove util.Execution.withTimeout #798

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21 changes: 1 addition & 20 deletions core/src/main/scala/org/http4s/blaze/util/Execution.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -16,38 +16,19 @@

package org.http4s.blaze.util

import scala.concurrent.{ExecutionContext, Future, Promise}
import java.util

import org.log4s.getLogger

import scala.annotation.tailrec
import scala.concurrent.duration.Duration
import scala.util.Try
import scala.util.control.NonFatal
import scala.concurrent.ExecutionContext

/** Special `ExecutionContext` instances.
*/
object Execution {
private[this] val logger = getLogger

// Race a future vs a default value. The timer used is the default blaze scheduler
private[blaze] def withTimeout[T](d: Duration, fallback: Try[T])(f: Future[T]): Future[T] =
if (!d.isFinite) f
else if (f.isCompleted) f
else {
val p = Promise[T]()
val r = new Runnable {
def run(): Unit =
if (p.tryComplete(fallback))
logger.debug(s"Future $f timed out after $d, yielding reesult $fallback")
}
// Race the future vs a timeout
Execution.scheduler.schedule(r, d)
f.onComplete(p.tryComplete(_))(Execution.directec)
p.future
}

/** A trampolining `ExecutionContext`
*
* This `ExecutionContext` is run thread locally to avoid context switches. Because this is a
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