Fwd: user-space locks

Robert Watson rwatson at FreeBSD.org
Sat Mar 10 03:49:09 UTC 2007


On Fri, 9 Mar 2007, Kip Macy wrote:

> Do you think that the umtx KPI may have reached the appropriate level of 
> maturity for writing up a man page? The KSE equivalent has had a substantive 
> man page for quite some time. I would be more than happy to do any of the 
> necessary technical copy-editing for the English.
>
> At this point I think you may be the only person well acquainted with the 
> KPI. Thanks.

During our threading discussion and code-reading session at the dev summit, 
the KSE man page was very helpful in understanding what was going on; having 
similar man pages for the libthr and umtx system calls would have been very 
helpful.  The interfaces are a lot less complicated, but man pages are very 
useful generally. :-)

Robert N M Watson
Computer Laboratory
University of Cambridge

>
>        -Kip
>
>
> Kip Macy wrote:
>> umtx
>
> julian at trafmon1:man -k umtx
> umtx: nothing appropriate
> julian at trafmon1:
>
> also if you use umtx I think you limit yourself to libthr.
>
>
>> 
>> On 3/9/07, Peter Holmes <peter_holmes2003 at yahoo.com> wrote:
>>> Does FreeBSD have anything similar to Futexes for
>>> Linux.
>>> 
>>> Thanks,
>>> Peter
>>> 
>>> 
>>> 
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