Re: [boost] [interprocess] Getting boot-up time is unreliable on Windows

Subject: Re: [boost] [interprocess] Getting boot-up time is unreliable on Windows
From: Remi Chateauneu (remi.chateauneu_at_[hidden])
Date: 2016-12-22 08:40:43

Maybe the RDTSC instruction might help for x86 processors, as it returns a
number of ticks which is reset at startup. It is also extremely fast.

Le 22 déc. 2016 13:04, "Thomas Dahms" <thomas.dahms_at_[hidden]>
a écrit :

Dear developers, dear Ion,

We are experiencing issues on Windows where boost::interprocess relies
on a certain event in the system event log to get the system's boot-up
time. This has proven to be unreliable, because that event is not always
present in the log. In that case, initialization of boost::interprocess
fails.
Several bug reports exist for that issue, e.g. [1, 2].

Report [1] contains a proposed fix to use GetTickCount64() and there is
an open PR with an alternative fix to fall back to WMI mechanisms [3]. I
understand that the fix [1] would need some polishing, because
GetTickCount64() is not available in pre-Vista.

Nevertheless, both proposed fixes have been uncommented and unconsidered
for a while now. Is there any chance that the maintainers could look
into this?

Thank you!

Regards,
Thomas

[1] https://svn.boost.org/trac/boost/ticket/12137
[2] https://svn.boost.org/trac/boost/ticket/12232
[3] https://github.com/boostorg/interprocess/pull/18

--
Thomas Dahms
Software Developer
Native Instruments GmbH
www.native-instruments.com
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