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annotate some instrumented methods with @noinline #616

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Oct 10, 2024
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annotate some instrumented methods with @noinline #616

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1 change: 1 addition & 0 deletions http-core/src/main/scala/org/apache/pekko/http/impl/engine/http2/Http2.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,7 @@ private[http] final class Http2Ext(implicit val system: ActorSystem)
val telemetry = TelemetrySpi.create(system)

// TODO: split up similarly to what `Http` does into `serverLayer`, `bindAndHandle`, etc.
@noinline // Not inlined to permit instrumentation to pass params (interface, port) as context to constructed implementation flows
def bindAndHandleAsync(
handler: HttpRequest => Future[HttpResponse],
interface: String, port: Int = DefaultPortForProtocol,
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1 change: 1 addition & 0 deletions http-core/src/main/scala/org/apache/pekko/http/impl/engine/http2/Http2Blueprint.scala
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Expand Up @@ -296,6 +296,7 @@ private[http] object Http2Blueprint {
* Returns a flow that handles `parallelism` requests in parallel, automatically keeping track of the
* Http2StreamIdHeader between request and responses.
*/
@noinline // Not inlined so that we can instrument the produced flow with e.g. tracing downstream
def handleWithStreamIdHeader(parallelism: Int)(handler: HttpRequest => Future[HttpResponse])(
implicit ec: ExecutionContext): Flow[HttpRequest, HttpResponse, NotUsed] =
Flow[HttpRequest]
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