From e0fc018ad7473cd24b188323393476c5a19a6d35 Mon Sep 17 00:00:00 2001
From: Niklas Keller <me@kelunik.com>
Date: Sat, 1 Jul 2017 10:52:56 +0200
Subject: [PATCH] Work around OPCache issue

---
 lib/Internal/Socket.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/Internal/Socket.php b/lib/Internal/Socket.php
index 3fe0720..5aab30b 100644
--- a/lib/Internal/Socket.php
+++ b/lib/Internal/Socket.php
@@ -157,7 +157,10 @@ abstract class Socket {
             }
 
             try {
-                return yield Promise\timeout($deferred->promise(), $timeout);
+                // Work around an OPCache issue that returns an empty array with "return yield ...", so assign to a variable first.
+                // See https://github.com/amphp/dns/issues/58.
+                $result = yield Promise\timeout($deferred->promise(), $timeout);
+                return $result;
             } catch (Amp\TimeoutException $exception) {
                 unset($this->pending[$id]);