QNX (was: Re: Raspberry Pi NTP config with fudge factors

[Frank Nicholas]

> On May 6, 2016, at 6:21 PM, Gary E. Miller <gem at rellim.com> wrote:
> 
> The end result is both processes have the shared memory mapped into their
> data space.  So things get updated at raw RAM speed.  Knowing it changed
> needs polls, semaphores, etc.
> 
> shmctl() is dumber, shared memory persists until reboot or explicit kill.
> 
> shm_open() has file system semantics, with all the good that implies.
> It also gets automatically removed whenn all consumers exit or
> explicitly delete.
> 
> But both end up giving you direct access to some RAM, possibly R, W, or RW.

Thanks for the explanation.

>>> Never underestiate the power of large numbers of stupid people.  
>> 
>> Look at all the Trump supporters!  (sorry to mention politics on this
>> list, but I couldn’t resist...)
> 
> And look at all the Hillary supporters…

Not me!  Seriously!

> How about we not go there?

Ok with me.