nu.kanga.list.mud-dev

6881: [MUD-Dev] Re: [CODE] [LANGUAGE/PLATFORM SPECIFIC] My Event Engine

Quoting Chris Gray (cg@ami-cg.GraySage.Edmonton.AB.CA):
> [J C Lawrence:]
> 
>  >Look for /usr/include/sys/poll.h (at least on my RH/Alpha system).
> 
> Not here on my 2.0.30 RH/x86 system.
>  > [...]
>  >I suspect you need a glibc update.
> 
> Could be - I think I don't have glibc.

A non-old libc should do just as well.  Perhaps something in the 
5.4.x range.

> However, if its just compatibility stuff, that suggests its just a
> library routine built on top of the 'select' system call. I don't
> think updating libc will add new kernel calls! Checking my magic
> header file '/usr/include/sys/syscall.h', I don't find an entry
> for 'poll'.

As I recall, that's correct.  Recent libraries support poll emulation
over select(2).  However, recent experimental [linux] kernels -- any 
but the earliest 2.1.x -- have a native "poll" system call, which the 
same recent libraries will use if it's available.  Veering slightly 
further from the topic, it's interesting to note that the select 
system call is now implemented (internally) on top of a poll-like 
interface.