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SubjectRe: [PATCH] Futex Generalization Patch
Date
On Wednesday 10 April 2002 02:09 pm, Bill Abt wrote:
> On 04/10/2002 at 12:37:53 PM AST, Hubertus Franke <frankeh@watson.ibm.com>
>
> wrote:
> > Can somebody in the thread world weight in what there preferred mechanism
>
> is
>
> > regarding limits etc. Do you need to control the issue on how the signal
>
> is
>
> > delivered? Is a file descriptor good enough or you want a sys_call
>
> interface ?
>
>
> I went thru the POSIX specification and couldn't find any specified limits
> regarding this and in most cases these limits are enforced at the library
> level. It probably should be left up to the kernel folks to determine the
> kernel limits they can live with. The library can adapt to this value. I
> don't believe a pthread library would need any "extra" control of how the
> signal is delivered. A file descriptor is good enough, seems a waste to
> have to provide a sys_call interface.
>

So you are OK with having only poll or select. That seems odd.
It seems you still need SIGIO on your fd to get the async notification.

> Regards,
> Bill Abt
> Senior Software Engineer
> Next Generation POSIX Threading for Linux
> IBM Cambridge, MA, USA 02142
> Ext: +(00)1 617-693-1591
> T/L: 693-1591 (M/W/F)
> T/L: 253-9938 (T/Th/Eves.)
> Cell: +(00)1 617-803-7514
> babt@us.ibm.com or abt@us.ibm.com
> http://oss.software.ibm.com/developerworks/opensource/pthreads


-- Hubertus

--
-- Hubertus Franke (frankeh@watson.ibm.com)
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