[fpc-devel] NowUTC in the RTL

Michael Schnell mschnell at lumino.de
Fri Dec 9 15:22:36 CET 2011

On 12/09/2011 02:52 PM, Sven Barth wrote:
> The description of Felipe mathes Windows' GetTickCount (number of 
> milliseconds since system start) and Linux' MONOTONIC_RAW time (or 
> however it is called exactly). So I don't see why this should rule out 
> OS time API calls...

He writes: " Ticks are time intervals and all of them have the same 
duration "

So the counting is not allowed to stop or to jump forward in case a time 
server access by daemon changing the system time is not allowed to 
interfere in any way.

So I suppose "GetTickCount (number of milliseconds since system start)" 
would be OK, but MONOTONIC_RAW time does not _sound_ correct.

On Linux, "get_jiffies_64()" seems to be a decent Kernel call.


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