Cross platform millisecond resolution timestamp

General
1

I’d like to log millisecond resolution timestamps but I’m finding it hard to find information on getting the time within Xojo.

I came across a thread which uses an external API call on Windows here https://forum.xojo.com/4669-timestamp-with-ms-resolution

What’s the recommended way to get an accurate time on Linux and Mac ?

Do I need to start writing little external shared libraries in C for ‘advanced’ functionality like this ?

The particular part of my system will run as a server daemon mainly on Linux systems although of course it will be able to run on both Windows and Mac based systems a swell so it’s important that I address all three platforms at the same resolution.

Any ideas or should I start writing a bit of C ?

2

There are no timestamps with millisecond resolution in Xojo

You’ll end up having to rely on OS calls to get at a clock that is monotonically increasing so you avoid the issues around DST switchovers (unless you WANT those but most times you want a timestamp you don’t)

SystemTime on Windows may go backwards (or jump forwards) - see http://msdn.microsoft.com/en-us/library/windows/desktop/ms724961(v=vs.85).aspx

You should be able to find one suitable if you go through
Time - http://msdn.microsoft.com/en-us/library/windows/desktop/ms724962(v=vs.85).aspx
Timers - http://msdn.microsoft.com/en-us/library/windows/desktop/ms632592(v=vs.85).aspx