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-rw-r--r--vendor/sabre/event/lib/Loop/Loop.php4
1 files changed, 3 insertions, 1 deletions
diff --git a/vendor/sabre/event/lib/Loop/Loop.php b/vendor/sabre/event/lib/Loop/Loop.php
index ec09be921..b85a7a440 100644
--- a/vendor/sabre/event/lib/Loop/Loop.php
+++ b/vendor/sabre/event/lib/Loop/Loop.php
@@ -273,7 +273,9 @@ class Loop
$read = $this->readStreams;
$write = $this->writeStreams;
$except = null;
- if (stream_select($read, $write, $except, (null === $timeout) ? null : 0, $timeout ? (int) ($timeout * 1000000) : 0)) {
+ // stream_select changes behavior in 8.1 to forbid passing non-null microseconds when the seconds are null.
+ // Older versions of php don't allow passing null to microseconds.
+ if (null !== $timeout ? stream_select($read, $write, $except, 0, (int) ($timeout * 1000000)) : stream_select($read, $write, $except, null)) {
// See PHP Bug https://bugs.php.net/bug.php?id=62452
// Fixed in PHP7
foreach ($read as $readStream) {