From: Jonathan Larmour <jlarmour@redhat.com>
To: Rosimildo daSilva <rosimildo@hotmail.com>
Cc: ecos-discuss@sourceware.cygnus.com
Subject: Re: [ECOS] Nested calls to Mutexes
Date: Wed, 21 Mar 2001 05:42:00 -0000 [thread overview]
Message-ID: <3AB8AFA1.3D50C070@redhat.com> (raw)
In-Reply-To: <F309LwxTQTYkWSzsVA2000068c5@hotmail.com>
Rosimildo daSilva wrote:
>
> Many implementations out there support the concept of
> nested/balanced mutex calls. That is the programmer's
> expectation. Sorry, to put this way, but I consider
> this a *bug*.
POSIX doesn't. Quite the opposite in fact, and that's hardly an obscure
standard....
"An attempt by the current owner of a mutex to relock the mutex results in
undefined behavior".
And "undefined behavior" means anything from the recursive mutexes you want
to contacting NORAD with the missile codes to start World War III.
So don't do this, the world is in your hands. :-)
Jifl
--
Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062
Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine
next prev parent reply other threads:[~2001-03-21 5:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-21 5:18 Rosimildo daSilva
2001-03-21 5:29 ` Bart Veer
2001-03-21 5:42 ` Jonathan Larmour [this message]
2001-03-21 6:26 ` Andrew Lunn
2001-03-21 6:45 ` Lewin A.R.W. Edwards
2001-03-22 8:46 ` Jonathan Larmour
2001-04-04 8:08 ` martin
2001-04-04 8:17 ` Jonathan Larmour
2001-03-21 6:06 Rosimildo daSilva
2001-03-21 6:54 Rosimildo daSilva
2001-04-04 18:29 Rosimildo daSilva
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