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Clean up same thread execution contexts #26690

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* deprecate internal sameThread ec and use a new one for all internal use sites
* Use the respective Scala version standard library "same thread" ec 
* fallback to the old inline impl on 2.12 when reflection isn't possible
This commit is contained in:
Johan Andrén 2020-03-10 15:39:30 +01:00 • committed by GitHub
parent 59ce257209
commit d26453b5e8
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45 changed files with 248 additions and 165 deletions
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8
akka-actor/src/main/scala/akka/pattern/AskSupport.scala
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@ -8,12 +8,13 @@ import java.util.concurrent.TimeoutException
import akka.actor._
import akka.annotation.InternalApi
import akka.dispatch.ExecutionContexts
import akka.dispatch.sysmsg._
import akka.util.{ Timeout, Unsafe }
import com.github.ghik.silencer.silent
import scala.annotation.tailrec
import scala.concurrent.{ ExecutionContext, Future, Promise }
import scala.concurrent.{ Future, Promise }
import scala.language.implicitConversions
import scala.util.{ Failure, Success }
@ -543,9 +544,6 @@ private[akka] final class PromiseActorRef private (
override def getParent: InternalActorRef = provider.tempContainer
def internalCallingThreadExecutionContext: ExecutionContext =
provider.guardian.underlying.systemImpl.internalCallingThreadExecutionContext
/**
* Contract of this method:
* Must always return the same ActorPath, which must have
@ -657,7 +655,7 @@ private[akka] object PromiseActorRef {
val result = Promise[Any]()
val scheduler = provider.guardian.underlying.system.scheduler
val a = new PromiseActorRef(provider, result, messageClassName)
implicit val ec = a.internalCallingThreadExecutionContext
implicit val ec = ExecutionContexts.parasitic
val f = scheduler.scheduleOnce(timeout.duration) {
result.tryComplete {
val wasSentBy = if (sender == ActorRef.noSender) "" else s" was sent by [$sender]"