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X-HELO:	calimero.vinschen.de
Date:	Thu, 21 Apr 2016 09:49:17 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Cc:	"Canham, Timothy K (348C)" <timothy DOT k DOT canham AT jpl DOT nasa DOT gov>
Subject:	Re: pthread_attr_init() returning errors
Message-ID:	<20160421074917.GB18530@calimero.vinschen.de>
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On Apr 20 11:18, Ernie Rael wrote:
> On 4/20/2016 10:22 AM, Canham, Timothy K (348C) wrote:
> >I think I understand what happened now. The call to pthread_attr_init() =
is contained within a function we use to start threads. It is called succes=
sive times and it fails on the second call. It would appear that the stack =
entry gets laid out the exact same way as the previous call, so pthread_att=
r_init() sees the previous pthread_attr_t. I added a memset() of att and th=
e issue went away. It looks like that is a good practice anyway.
>=20
> Best practice might be using pthread_attr_destroy(attr).

Good point.  Not calling pthread_attr_destroy on abandoned
pthread_attr_t also results in memory leaks on Cygwin.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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