Re: select/poll bug?

["Greg A. Woods; Planix, Inc." <woods%planix.ca@localhost>]

On 2-Aug-08, at 6:57 PM, Roy Marples wrote:
> Not entirely sure what you mean here, but some research just put a  
> nail
> in using select - well it's coffin anyway. POSIX only says it has to
> wait upto 31 days. Linux has a hard limit which is hard to work out,  
> so
> I'm now looping on poll. I really really wish the man pages were  
> better
> documented about this!

I'm not sure why you want to set a timer for the whole lease.

Why not set a regular timer and decrement the remaining lease TTL on  
that interval?

The extra CPU cycles through such a loop, even counting all the kernel  
time for the system call transitions, is inevitably negligible over  
such periods as DAYS.

--
                                        Greg A. Woods; Planix, Inc.
                                        <woods%planix.ca@localhost>