guy keren wrote:
Lev Olshvang wrote:
Hi friends,
I seems that i have buggy implementation of pthread_timedjoin_np.
Although linux does not documented this function yet ( see
http://www.kernel.org/doc/man-pages/missing_pages.html ), I suspect
that on my installation
this function does not work properly because it returns sometimes 0,
sometimes 110 and does not set errno to ETIMEOUT.
After some googling I still do not know how to get thread status.
As an idea i thought about using the futex() to check memory pointed
my thread handle, but
I am almost sure this solution (if pthread handle indeed references
memory) is dirty, ...
I saw on this list people with experience in thread programming and
I am hope for you help.
Cheers,
Lev
Hi Lev,
why do you want to use this non-posix API in the first place?
APIs ending with '_np' are not part of the pthreads spec - and thus
are not portable and should be avoided.
why can't you use the standard pthread_join API?
and if you need a work-around you can use some portable mechanism,
e.g. synchronizing using a condition variable, having the inner thread
signal it just before terminating, and the outer thread waiting on it
just before calling pthread_join?
--guy
Hi,
I am looking for generic way to ask about thread existence.
The problem is that I create thread for third party function, so I can
not add to this function code to use thread signalling and cond variables.
Yes, I know that _np functioins are GNU extensions to POSIX, but I did
not found way to query
thread aliviness.
Thanks for answer.
L.
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