Notice (2018-05-24): bugzilla.xamarin.com is now in
Please join us on
Visual Studio Developer Community and in the
Mono organizations on
GitHub to continue tracking issues. Bugzilla will remain
available for reference in read-only mode. We will continue to work
on open Bugzilla bugs, copy them to the new locations
as needed for follow-up, and add the new items under Related
Our sincere thanks to everyone who has contributed on this bug
tracker over the years. Thanks also for your understanding as we
make these adjustments and improvements for the future.
Please create a new report on
GitHub or Developer Community with
your current version information, steps to reproduce, and relevant error
messages or log files if you are hitting an issue that looks similar to
this resolved bug and you do not yet see a matching new report.
io-layer only has 1s resolution for file time information.
This is (somewhat) problematic because e.g. the Microsoft/msbuild unit tests sleep for 100ms between creating files, expecting the file times to differ. Under mono, the file times don't differ, because io-layer uses the 1s-resolution `struct stat` members, not the 1ns members:
In order to get 1ns resolution, the `struct stat::st_mtimespec` and other `struct stat::st_*timespec` fields should be used instead of the `struct stat::st_*time` members.
The st_mtimespec.tv_nsec field seems to be 0 under osx, so it still cannot give sub second accuracy.
Indeed, wikipedia mentions that HFS+ only supports 1s date resolution:
At least this should work on Linux...
3 years later, your wish has been granted! https://github.com/mono/mono/commit/a5c6f5c5ca246f688942a128b41010fd66301dc1