From: Simon Marlow <marlowsd@gmail.com>
Date: Tue, 2 Sep 2008 09:31:26 +0000 (+0000)
Subject: docs: mention that killThread on a completed thread is a no-op
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=95f618043f31397461dd23762a19039c4aa0a15b;p=ghc-base.git

docs: mention that killThread on a completed thread is a no-op
---

diff --git a/GHC/Conc.lhs b/GHC/Conc.lhs
index 6239278..b19f520 100644
--- a/GHC/Conc.lhs
+++ b/GHC/Conc.lhs
@@ -266,6 +266,7 @@ terms of 'throwTo':
 
 > killThread tid = throwTo tid ThreadKilled
 
+Killthread is a no-op if the target thread has already completed.
 -}
 killThread :: ThreadId -> IO ()
 killThread tid = throwTo tid ThreadKilled