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gettimeofday - millisecond accuracy


with my test of gettimeofday in cygwin it appears to be counting in milliseconds
rather than microseconds.


so I had a look at where it is coded, /winsup/cygwin/times.cc

...
gettimeofday (struct timeval *tv, void *tzvp)
{
 struct timezone *tz = (struct timezone *) tzvp;
 static bool tzflag;
 LONGLONG now = gtod.usecs ();
...

I notice there is
hires_ms NO_COPY gtod;


however lower down there is appears to be a hires_us class coded.

So I am wondering what the story is behind this ?

I will look at testing some changes here and testing, just need to do a successful build from source
of as is first.....


I am looking for microsecond resolution, and see that hires_us is using QueryPerformanceFrequency/QueryPerformanceCounter,
so thats looking good I think?


I have code that does bitbanging to the parallel port, it works perfectly under linux, and would like
to see it work in cygwin also.


Thanks


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