* [Qemu-devel] [6634] Properly handle pthread_cond_timedwait timing out
@ 2009-02-21 5:48 malc
0 siblings, 0 replies; only message in thread
From: malc @ 2009-02-21 5:48 UTC (permalink / raw)
To: qemu-devel
Revision: 6634
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6634
Author: malc
Date: 2009-02-21 05:48:19 +0000 (Sat, 21 Feb 2009)
Log Message:
-----------
Properly handle pthread_cond_timedwait timing out
pthread_cond_timedwait is allowed to both consume the signal and
return with the value indicating the timeout, hence predicate should
always be (re)checked before taking an action
Modified Paths:
--------------
trunk/posix-aio-compat.c
Modified: trunk/posix-aio-compat.c
===================================================================
--- trunk/posix-aio-compat.c 2009-02-21 05:48:17 UTC (rev 6633)
+++ trunk/posix-aio-compat.c 2009-02-21 05:48:19 UTC (rev 6634)
@@ -104,7 +104,7 @@
ret = cond_timedwait(&cond, &lock, &ts);
}
- if (ret == ETIMEDOUT)
+ if (TAILQ_EMPTY(&request_list))
break;
aiocb = TAILQ_FIRST(&request_list);
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2009-02-21 5:48 [Qemu-devel] [6634] Properly handle pthread_cond_timedwait timing out malc
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