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Re: [RFC PATCH Mach] Add a mach host operation which returns elapsed tim
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From: |
Samuel Thibault |
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Subject: |
Re: [RFC PATCH Mach] Add a mach host operation which returns elapsed time since bootup |
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Date: |
Thu, 19 Dec 2024 11:31:29 +0100 |
Hello,
Zhaoming Luo, le jeu. 19 déc. 2024 09:23:57 +0800, a ecrit:
> On 12/19/24 4:18 AM, Luca wrote:
> To be honest I came across /dev/time several times but I'm still quite
> confused about it. I tried to read the documentation and the code of storeio
> translator (`showtrans /dev/time` gave me /hurd/storeio ...) but I didn't
> find something useful. May I have a detail explanation about the "time"
> device? (purpose and mechanism). Or any documentation that's worth to read?
See mach's device table i386/i386at/conf.c, which leads to timemmap(),
which maps mtime from mach_clock.c. It could be useful to extend it too.
Samuel