Subj : Re: usage of time() for timeout handling
To   : comp.arch.embedded,comp.programming
From : Willem
Date : Thu Jul 28 2005 09:51 pm

Ed wrote:
) if you are only looking for time intervals why are you calling the wall
) clock function?
)
) Look into using the alarm() function. From the man page -

) <snip>
)     
)        In any event any previously set alarm is cancelled.

This means that the *entire* process can only have one alarm running
at a time.  So it's unsuited as-is for more than one timeout at a time.

) I'm really surprised no one else mentioned this solution. And if you
) are working in a Microsoft OS, check for something similar.

alarm() just isn't used much for timeouts, I guess.   Maybe for
the abovementioned reasone.  Or maybe because the way signal handlers
work differs subtly across platforms, and is hairy at best.


SaSW, Willem
-- 
Disclaimer: I am in no way responsible for any of the statements
            made in the above text. For all I know I might be
            drugged or something..
            No I'm not paranoid. You all think I'm paranoid, don't you !
#EOT

.