On 27/08/2013 20:05, Rob wrote:
Martin Burnicki <[email protected]> wrote:
What I meant is the usage of CreateFileMapping() and MapViewOfFile() for
shared memory segments, as it is done in ntpd's refclock_shm.c.
We are using this in the Windows driver package for our PCI cards, but
this usage is not related to NTP. AFAIK this is supported in all Windows
version at least starting with NT.
Ntpd has already implemented this (which I also didn't know until
recently), and it should not be too hard for something like gpsd to
implement this also, if this han't already been done, yet.
Looking in the most recent ntpshm.c I see only the calls to shmget
and shmat. But I think you are right, it should be quite simple to
add a compilation conditional and replace it with mapping calls similar
to what is found in the Windows port of ntpd.
However, it could also be that libraries that come with cygwin already
do that translation.
Rob,
There should be no requirement to install Cygwin for NTP users on
Windows, if that's what you are suggesting.
--
Cheers,
David
Web: http://www.satsignal.eu
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