From owner-freebsd-hackers@FreeBSD.ORG  Wed Feb  7 21:36:51 2007
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Date: Wed, 7 Feb 2007 22:36:41 +0100
From: "Pietro Cerutti" <pietro.cerutti@gmail.com>
To: "youshi10@u.washington.edu" <youshi10@u.washington.edu>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: Trying to join an already exited pthread
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On 2/7/07, youshi10@u.washington.edu <youshi10@u.washington.edu> wrote:
> Just wondering:
>
> If I was to try and join a pthread that already exited, would there be an error message output and/or errno set to an error value, or would a system hang?

man pthread_join(3):

ERRORS
     The pthread_join() function will fail if:
     [EINVAL]           The implementation has detected that the value speci-
                        fied by thread does not refer to a joinable thread.

A pthread that already exited is considered non-joinable

> It this variable on Unix OSes?


 The pthread_join() function conforms to ISO/IEC 9945-1:1996
     (``POSIX.1'').

> -Garrett


-- 
Pietro Cerutti
ICQ: 117293691
PGP: 0x9571F78E

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