From 2cdd26901ebdb2622449d8065283562a963ea6e4 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Wed, 15 Jul 2009 19:41:44 +0000
Subject: [PATCH] yield thread for each task, and even when there are no tasks

---
 panda/src/event/asyncTaskChain.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/panda/src/event/asyncTaskChain.cxx b/panda/src/event/asyncTaskChain.cxx
index c4424ef297..1657f27f6d 100644
--- a/panda/src/event/asyncTaskChain.cxx
+++ b/panda/src/event/asyncTaskChain.cxx
@@ -805,6 +805,7 @@ service_one_task(AsyncTaskChain::AsyncTaskChainThread *thread) {
         << *Thread::get_current_thread() << "\n";
     }
   }
+  thread_consider_yield();
 }
 
 ////////////////////////////////////////////////////////////////////
@@ -1209,6 +1210,7 @@ do_get_sleeping_tasks() const {
 ////////////////////////////////////////////////////////////////////
 void AsyncTaskChain::
 do_poll() {
+  thread_consider_yield();
   if (_num_tasks == 0) {
     return;
   }