diff --git a/kiri-engine/Waite.php b/kiri-engine/Waite.php
new file mode 100644
index 00000000..c95580c4
--- /dev/null
+++ b/kiri-engine/Waite.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Kiri;
+
+use Swoole\Coroutine;
+
+class Waite
+{
+
+
+    /**
+     * @param float $time
+     * @return void
+     */
+    public static function sleep(float $time): void
+    {
+        if (!class_exists(Coroutine::class) || Coroutine::getCid() > -1) {
+            usleep($time * 1000);
+        } else {
+            Coroutine::sleep($time / 1000);
+        }
+    }
+
+}
\ No newline at end of file