Re: [TCLCORE] multithreaded Tcl IO / select vs. epoll and IOCP

[Alexandre F. <ale...@gm...>]

Hi Daniel,

I am not aware of your answer to the following. I'm insisting because
I'm about to try the pthread_kill method...

>  > my main concern was portability (compared to the existing solution,
>  >  which may well be the lowest common denominator but as a consequence
>  >  does work everywhere...), along with inability to detect at configure
>  >  time which of the various alternative options work correctly (and
>  >  perform better) on a given platform.
>  >  See for example how libev has to decide at compile-time&runtime which
>  >  of its options to use on a given system due to various OS brokenness
>  >     http://cvs.schmorp.de/libev/ev.c?revision=1.313&view=markup
>
>
> Following this links I see many ifdefs indeef, but they rather seem to
>  be geared towards making the best use of the given platform (select vs
>  poll, kevents vs signalfd, etc). I don't see anything pertaining to
>  pthread_kill being unsupported or buggy. Googling also yields reports
>  about a few pthread_kill issues, but they seem to be restricted to
>  corner cases (like sending to a dead thread or to self, or using the
>  KILL signal) which are very far from the use we'd be making of it
>  (pthread_kill to a living thread, different from the sender, of a
>  benign signal, with an empty handler). Do you have more precise
>  evidence ?

-Alex