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RE: problem in pthread_key_create
- From: "Johnny Willemsen" <jwillemsen at remedy dot nl>
- To: <cygwin at cygwin dot com>
- Date: Mon, 10 Jan 2005 19:36:23 +0100
- Subject: RE: problem in pthread_key_create
Hi Corinna,
Thanks for the info. You are right, an EBUSY is returned when a valid key is
passed. I wrote first the report about EBUSY, then after that of the ! Part.
But, why EBUSY and not EINVAL? I have not figured out why a regression test
in ACE (see www.cs.wustl.edu/~schmidt) calls this twice. We now get the
error in our logfile:
ACE_Thread::keycreate: Device or resource busy (no more keys)
I would have expected:
ACE_Thread::keycreate: Invalid value.
I find the error text so strange.
Johnny
****
On Jan 10 13:00, Corinna Vinschen wrote:
> On Jan 9 18:31, Johnny Willemsen wrote:
> > A question, I had a look at the implementation of pthread_key_create.
When
> > an invalid key is passed, a EBUSY is returned.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I just read this again and it occured to me that this is a misconception.
pthread_key_create() returns EBUSY if a *valid* key is passed. This
should make it clearer, shouldn't it?
Corinna
>
> No, that's not a bug. Please read the SUSv3 description for
> pthread_key_create() here:
>
>
http://www.opengroup.org/onlinepubs/009695399/functions/pthread_key_create.h
tml
>
> Please note especially the chapter
>
> RATIONALE/Non-Idempotent Data Key Creation.
> [...]
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader mailto:cygwin@cygwin.com
Red Hat, Inc.
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