Subj : Re: usage of time() for timeout handling
To   : comp.arch.embedded,comp.programming
From : Randy Howard
Date : Wed Jul 27 2005 11:38 pm

Willem wrote
(in article <slrndeg0bf.2i2a.willem@toad.stack.nl>):

> David wrote:
>> Hi gurus,
>> I'm having some modules, that use time() for determine if a given activity
>> has timed out. As the operating system time will be updated periodically
>> with the time or the RTC chip, it is possible that the result of two calls
> 
> A good operating system will not 'jump' the OS clock to the correct
> time, it will slow down or speed up the OS clock so that it will match
> the correct timeafter a while.  (Unless the jump is too great, in which
> case it will do it at once, but with a warning in a log file of some sort.)

windows, linux and OS X must all be "not good" then.  Which I 
won't dispute.  :-)


-- 
Randy Howard (2reply remove FOOBAR)

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