| From: | Tom <tom(at)sdf(dot)com> |
|---|---|
| To: | Mattias Kregert <matti(at)algonet(dot)se> |
| Cc: | The Hermit Hacker <scrappy(at)hub(dot)org>, Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>, Massimo Dal Zotto <dz(at)cs(dot)unitn(dot)it>, hackers(at)postgresql(dot)org |
| Subject: | Re: [HACKERS] Re: sched_yield() |
| Date: | 1998-03-22 06:32:15 |
| Message-ID: | Pine.BSF.3.95q.980321222932.12537A-100000@misery.sdf.com |
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| Lists: | pgsql-hackers |
On Sun, 22 Mar 1998, Mattias Kregert wrote:
> Except from Linux, I can find references to sched_yield() in LynxOS,
> DECthreads thread library, AIX 4.1 and up (libc), Solaris (thread.h
> (c)1994 Sun
> Microsystems), Unix98, GNU, C EXECUTIVE(r) and PSX(tm) real time kernels
> ...
> This is just a quick search.
This seems to be part of Posix threads, which means that sched_yield
should only be callable by a thread.... I'm surprised that normal
processes can call sched_yield. In fact, in most of the environments
you've mentioned, it certainly can't be used outside a thread.
Tom
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