1 files changed, 14 insertions, 1 deletions
diff --git a/lib/internal/util.js b/lib/internal/util.js
index 1ff25dbc7d..0a31973918 100644
--- a/lib/internal/util.js
+++ b/lib/internal/util.js
@@ -26,7 +26,8 @@ const {
   getHiddenValue,
   setHiddenValue,
   arrow_message_private_symbol: kArrowMessagePrivateSymbolIndex,
-  decorated_private_symbol: kDecoratedPrivateSymbolIndex
+  decorated_private_symbol: kDecoratedPrivateSymbolIndex,
+  sleep: _sleep
 } = internalBinding('util');
 const { isNativeError } = internalBinding('types');
 
@@ -385,6 +386,17 @@ function once(callback) {
   };
 }
 
+let validateUint32;
+
+function sleep(msec) {
+  // Lazy-load to avoid a circular dependency.
+  if (validateUint32 === undefined)
+    ({ validateUint32 } = require('internal/validators'));
+
+  validateUint32(msec, 'msec');
+  _sleep(msec);
+}
+
 module.exports = {
   assertCrypto,
   cachedResult,
@@ -402,6 +414,7 @@ module.exports = {
   normalizeEncoding,
   once,
   promisify,
+  sleep,
   spliceOne,
   removeColors,