*** GMX Spamverdacht *** MSYS touch.exe timestamp resolution issue on Wine-1.6

[Thorsten Kani]

Am 12.10.2013 23:28, schrieb Alan W. Irwin:
> Under MSYS bash.exe if I use the touch command I only get 1-second
> resolution when reading the results.
>
> bash.exe-3.1$ touch touch1.test touch2.test
> bash.exe-3.1$ ls --full-time touch*.test
> -rw-r--r-- 1 wine 544 0 2013-10-12 13:57:58.000000000 -0700 touch1.test
> -rw-r--r-- 1 wine 544 0 2013-10-12 13:57:58.000000000 -0700 touch2.test
>
> Would somebody be willing to make the above test for MSYS on
> the Microsoft version of Windows (which I don't have access to) to see
> if time stamps  are being read with 1-second resolution as above. That 
> test
> should help distinguish whether this is a Wine issue or else an MSYS
> issue.
>
> I have also done some tests with the MSYS find.exe and make.exe
> commands, and in all cases touch2.test is not newer than touch1.text.
> This can be an important issue for the make command where one-second
> time resolution can potentially screw up file dependencies.
>
> If I use the equivalent Linux ls (and find and make) commands to read the
> time stamps on the above files, then touch2.test is newer than 
> touch1.text,
> e.g.,
>
> wine at raven> ls --full-time touch*.test
> -rw-r--r-- 1 wine wine 0 2013-10-12 13:57:58.391000000 -0700 touch1.test
> -rw-r--r-- 1 wine wine 0 2013-10-12 13:57:58.408000000 -0700 touch2.test
>
> So I think this implies the MSYS touch.exe command is writing
> high-resolution (i.e., millisecond) time stamps, and it is only
> reading that high-resolution time stamp that seems to be an
> issue for MSYS on Wine.
>
> Alan
> __________________________
> Alan W. Irwin
>
> Astronomical research affiliation with Department of Physics and 
> Astronomy,
> University of Victoria (astrowww.phys.uvic.ca).
>
> Programming affiliations with the FreeEOS equation-of-state
> implementation for stellar interiors (freeeos.sf.net); the Time
> Ephemerides project (timeephem.sf.net); PLplot scientific plotting
> software package (plplot.sf.net); the libLASi project
> (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
> and the Linux Brochure Project (lbproject.sf.net).
> __________________________
>
> Linux-powered Science
> _________________________


Sure -- seems to be a MSYS issue though:

root at me ~
$ touch touch1 touch2

root at me ~
$ ls --full-time touch*
-rw-r--r-- 1 root Administratoren 0 2013-10-13 13:33:47.000000000 +0000 
touch1
-rw-r--r-- 1 root Administratoren 0 2013-10-13 13:33:47.000000000 +0000 
touch2

root at me ~
$ uname
MINGW32_NT-6.1

root at me ~
$

Have a nice Day !
Thorsten