Re: is there a 'wait' command in Ada

[fjh@murlibobo.cs.mu.OZ.AU (Fergus Henderson)]

"David C. Hoos, Sr." <david.c.hoos.sr@ada95.com> writes:

>Have you ever thought of using the UNIX select function to implement a
>"delay that doesn't burn CPU cycles or issue s shell command?
>All you need to do is set all three of the file descriptor mask addresses
>to null addresses, and point to a timeval structure initialized with the
>desired delay time, and the UNIX kernel will swap you out until the time
>has expired.  Works like a champ!

That works OK in a single-task program, but in a multitasking
program, the UNIX kernel may swap out the whole _process_ rather
than just delaying the individual task.

--
Fergus Henderson <fjh@cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: <http://www.cs.mu.oz.au/~fjh>   |  of excellence is a lethal habit"
PGP: finger fjh@128.250.37.3         |     -- the last words of T. S. Garp.