From 4662cbefd6a95059c15b6488e4c98cf77046b43a Mon Sep 17 00:00:00 2001
From: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
Date: Tue, 11 Jan 2022 18:20:49 +0100
Subject: [PATCH] turn.after

---
 syndicate/actor.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/syndicate/actor.py b/syndicate/actor.py
index 6201188..b455a72 100644
--- a/syndicate/actor.py
+++ b/syndicate/actor.py
@@ -451,6 +451,15 @@ class Turn:
             ref.entity.on_message(message)
         self._enqueue(ref.facet, action)
 
+    # decorator
+    def after(self, delay_seconds):
+        def decorate(action):
+            @self.linked_task()
+            async def task(facet):
+                await asyncio.sleep(delay_seconds)
+                Turn.external(facet, action)
+        return decorate
+
     def _enqueue(self, target_facet, action):
         target_actor = target_facet.actor
         if target_actor not in self.queues: