1 files changed, 14 insertions, 0 deletions
diff --git a/ext/node/polyfills/worker_threads.ts b/ext/node/polyfills/worker_threads.ts
index 3c8c9d443..323095206 100644
--- a/ext/node/polyfills/worker_threads.ts
+++ b/ext/node/polyfills/worker_threads.ts
@@ -18,7 +18,9 @@ import {
   MessagePortIdSymbol,
   MessagePortPrototype,
   nodeWorkerThreadCloseCb,
+  refMessagePort,
   serializeJsMessageData,
+  unrefPollForMessages,
 } from "ext:deno_web/13_message_port.js";
 import * as webidl from "ext:deno_webidl/00_webidl.js";
 import { notImplemented } from "ext:deno_node/_utils.ts";
@@ -398,6 +400,12 @@ internals.__initWorkerThreads = (
     parentPort.addEventListener("offline", () => {
       parentPort.emit("close");
     });
+    parentPort.unref = () => {
+      parentPort[unrefPollForMessages] = true;
+    };
+    parentPort.ref = () => {
+      parentPort[unrefPollForMessages] = false;
+    };
   }
 };
 
@@ -467,6 +475,12 @@ function webMessagePortToNodeMessagePort(port: MessagePort) {
   port[nodeWorkerThreadCloseCb] = () => {
     port.dispatchEvent(new Event("close"));
   };
+  port.unref = () => {
+    port[refMessagePort](false);
+  };
+  port.ref = () => {
+    port[refMessagePort](true);
+  };
   return port;
 }