Re: git: 108de784513d - main - Redefine CLOCK_BOOTTIME to alias CLOCK_MONOTONIC, not CLOCK_UPTIME
- Reply: Cy Schubert : "Re: git: 108de784513d - main - Redefine CLOCK_BOOTTIME to alias CLOCK_MONOTONIC, not CLOCK_UPTIME"
- In reply to: Cy Schubert : "Re: git: 108de784513d - main - Redefine CLOCK_BOOTTIME to alias CLOCK_MONOTONIC, not CLOCK_UPTIME"
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Date: Sat, 01 Jun 2024 13:51:37 UTC
On Sat, Jun 1, 2024 at 9:31 AM Cy Schubert <Cy.Schubert@cschubert.com>
wrote:
> In message
> <CANCZdfpMvorgKYx6pCL7_q6BW3AqZSDwryKHg_cV+yt_E-FbOQ@mail.gmail.c
> om>
> , Warner Losh writes:
> > --0000000000000d72080619d34a39
> > Content-Type: text/plain; charset="UTF-8"
> > Content-Transfer-Encoding: quoted-printable
> >
> > On Sat, Jun 1, 2024, 4:37=E2=80=AFAM Nuno Teixeira <eduardo@freebsd.org>
> wr=
> > ote:
> >
> > > Hello,
> > >
> > > Having issues building graphics/mesa-dri:
> > >
> > > ../src/intel/common/xe/intel_gem.c:72:9: error: duplicate case value
> '4'
> > > 72 | case CLOCK_BOOTTIME:
> > > | ^
> > > /usr/include/sys/_clock_id.h:81:25: note: expanded from macro
> > > 'CLOCK_BOOTTIME'
> > > 81 | #define CLOCK_BOOTTIME CLOCK_MONOTONIC
> > > | ^
> > > /usr/include/sys/_clock_id.h:56:26: note: expanded from macro
> > > 'CLOCK_MONOTONIC'
> > > 56 | #define CLOCK_MONOTONIC 4
> > > | ^
> > > ../src/intel/common/xe/intel_gem.c:66:9: note: previous case defined
> here
> > > 66 | case CLOCK_MONOTONIC:
> > > | ^
> > > /usr/include/sys/_clock_id.h:56:26: note: expanded from macro
> > > 'CLOCK_MONOTONIC'
> > > 56 | #define CLOCK_MONOTONIC 4
> > > | ^
> > > 1 error generated.
> > >
> >
> > Mesa needs to be updated to not assume these are distinct values.
>
> You should be able to resolve this with,
>
> --- src/intel/common/xe/intel_gem.c.orig 2024-05-22
> 09:48:39.000000000 -0700
> +++ src/intel/common/xe/intel_gem.c 2024-06-01 06:28:22.268439000 -0700
> @@ -69,8 +69,10 @@
> #endif
> case CLOCK_REALTIME:
> #ifdef CLOCK_BOOTTIME
> +#if CLOCK_BOOTTIME != CLOCK_MONOTONIC
> case CLOCK_BOOTTIME:
> #endif
> +#endif
> #ifdef CLOCK_TAI
> case CLOCK_TAI:
> #endif
>
Yea, that should do it. I was going to look at this when I got back from
BSDcan (mostly because
my talk is this morning), but thanks for beating me to it. I woke up grump
and it was bugging me
on the walk over to the conference I was a little short in my first reply,
but since you proposed a
fix, I feel less guilty... :) Thanks!
Warner
Warner
Warner
> --
> Cheers,
> Cy Schubert <Cy.Schubert@cschubert.com>
> FreeBSD UNIX: <cy@FreeBSD.org> Web: https://FreeBSD.org
> NTP: <cy@nwtime.org> Web: https://nwtime.org
>
> e^(i*pi)+1=0
>
>
> >
> > Warner
> >
> >
> > > Thanks
> > >
> > > Warner Losh <imp@freebsd.org> escreveu (sexta, 31/05/2024 =C3=A0(s)
> 15:47=
> > ):
> > >
> > >> The branch main has been updated by imp:
> > >>
> > >> URL:
> > >>
> https://cgit.FreeBSD.org/src/commit/?id=3D108de784513d87bbe850e7b003a73e=
> > 26b5b54caa
> > >>
> > >> commit 108de784513d87bbe850e7b003a73e26b5b54caa
> > >> Author: Val Packett <val@packett.cool>
> > >> AuthorDate: 2024-05-31 14:45:02 +0000
> > >> Commit: Warner Losh <imp@FreeBSD.org>
> > >> CommitDate: 2024-05-31 14:45:02 +0000
> > >>
> > >> Redefine CLOCK_BOOTTIME to alias CLOCK_MONOTONIC, not CLOCK_UPTIME
> > >>
> > >> The suspend-awareness situation with monotonic clocks across
> platfor=
> > ms
> > >> is kind of a mess, let's try not making it worse.
> > >>
> > >> On Linux, CLOCK_MONOTONIC does NOT count suspended time, and
> > >> CLOCK_BOOTTIME was introduced to INCLUDE suspended time.
> > >>
> > >> On OpenBSD, CLOCK_MONOTONIC DOES count suspended time, and
> > >> CLOCK_UPTIME
> > >> was introduced to EXCLUDE suspended time.
> > >>
> > >> On macOS, it's the same as OpenBSD, but with CLOCK_UPTIME_RAW.
> > >>
> > >> Right now, we do not have a monotonic clock that counts suspended
> > >> time.
> > >> We have CLOCK_UPTIME as a distinct ID alias, and CLOCK_BOOTTIME
> as a
> > >> preprocessor alias, both being effectively `CLOCK_MONOTONIC` for
> now=
> > .
> > >>
> > >> When we introduce a suspend-aware clock in the future, it would
> make=
> > a
> > >> lot more sense to do it the OpenBSD/macOS way, i.e. to make
> > >> CLOCK_MONOTONIC include suspended time and make CLOCK_UPTIME
> exclude
> > >> it,
> > >> because that's what the name CLOCK_UPTIME implies: a deviation
> from
> > >> the
> > >> default intended for the uptime command to allow it to only show
> the
> > >> time the system was actually up and not suspended.
> > >>
> > >> Let's change the define right now to make sure software using the
> > >> define
> > >> would not end up using the ID of the wrong clock in the future,
> and
> > >> fix
> > >> the IDs in the Linux compat code to match the expected changes
> too.
> > >>
> > >> See https://bugzilla.mozilla.org/show_bug.cgi?id=3D1824084
> > >> for more discussion.
> > >>
> > >> Fixes: 155f15118a77 ("clock_gettime: Add Linux aliases
> for
> > >> CLOCK_*")
> > >> Fixes: 25ada637362d ("Map Linux CLOCK_BOOTTIME to native
> > >> CLOCK_UPTIME.")
> > >> Sponsored by: https://www.patreon.com/valpackett
> > >> Reviewed by: kib, imp
> > >> Differential Revision: https://reviews.freebsd.org/D39270
> > >> ---
> > >> sys/compat/linux/linux_time.c | 6 +++---
> > >> sys/sys/_clock_id.h | 2 +-
> > >> 2 files changed, 4 insertions(+), 4 deletions(-)
> > >>
> > >> diff --git a/sys/compat/linux/linux_time.c
> b/sys/compat/linux/linux_time=
> > .c
> > >> index e9e5cf075210..f4dd26dd3d2a 100644
> > >> --- a/sys/compat/linux/linux_time.c
> > >> +++ b/sys/compat/linux/linux_time.c
> > >> @@ -287,7 +287,7 @@ linux_to_native_clockid(clockid_t *n, clockid_t l)
> > >> *n =3D CLOCK_REALTIME;
> > >> break;
> > >> case LINUX_CLOCK_MONOTONIC:
> > >> - *n =3D CLOCK_MONOTONIC;
> > >> + *n =3D CLOCK_UPTIME;
> > >> break;
> > >> case LINUX_CLOCK_PROCESS_CPUTIME_ID:
> > >> *n =3D CLOCK_PROCESS_CPUTIME_ID;
> > >> @@ -300,10 +300,10 @@ linux_to_native_clockid(clockid_t *n, clockid_t
> l)
> > >> break;
> > >> case LINUX_CLOCK_MONOTONIC_COARSE:
> > >> case LINUX_CLOCK_MONOTONIC_RAW:
> > >> - *n =3D CLOCK_MONOTONIC_FAST;
> > >> + *n =3D CLOCK_UPTIME_FAST;
> > >> break;
> > >> case LINUX_CLOCK_BOOTTIME:
> > >> - *n =3D CLOCK_UPTIME;
> > >> + *n =3D CLOCK_MONOTONIC;
> > >> break;
> > >> case LINUX_CLOCK_REALTIME_ALARM:
> > >> case LINUX_CLOCK_BOOTTIME_ALARM:
> > >> diff --git a/sys/sys/_clock_id.h b/sys/sys/_clock_id.h
> > >> index 47a551428dc3..728346a0f0ab 100644
> > >> --- a/sys/sys/_clock_id.h
> > >> +++ b/sys/sys/_clock_id.h
> > >> @@ -78,7 +78,7 @@
> > >> * Linux compatible names.
> > >> */
> > >> #if __BSD_VISIBLE
> > >> -#define CLOCK_BOOTTIME CLOCK_UPTIME
> > >> +#define CLOCK_BOOTTIME CLOCK_MONOTONIC
> > >> #define CLOCK_REALTIME_COARSE CLOCK_REALTIME_FAST
> > >> #define CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST
> > >> #endif
> > >>
> > >>
> > >
> > > --
> > > Nuno Teixeira
> > > FreeBSD UNIX: <eduardo@FreeBSD.org> Web: https://FreeBSD.org
> > >
> >
> > --0000000000000d72080619d34a39
> > Content-Type: text/html; charset="UTF-8"
> > Content-Transfer-Encoding: quoted-printable
> >
> > <div dir=3D"ltr"><div dir=3D"auto"><div><br><br><div
> class=3D"gmail_quote">=
> > <div dir=3D"ltr" class=3D"gmail_attr">On Sat, Jun 1, 2024,
> 4:37=E2=80=AFAM =
> > Nuno Teixeira <<a href=3D"mailto:eduardo@freebsd.org"
> target=3D"_blank">=
> > eduardo@freebsd.org</a>> wrote:<br></div><blockquote
> class=3D"gmail_quot=
> > e" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc
> solid;padding-left:1ex">=
> > <div dir=3D"ltr"><div>Hello,</div><div><br></div><div>Having issues
> buildin=
> > g
> graphics/mesa-dri:</div><div><br></div><div>../src/intel/common/xe/intel_=
> > gem.c:72:9: error: duplicate case value '4'<br>=C2=A0 =C2=A072 |
> =
> > =C2=A0 =C2=A0case CLOCK_BOOTTIME:<br>=C2=A0 =C2=A0 =C2=A0 | =C2=A0
> =C2=A0 =
> > =C2=A0 =C2=A0 ^<br>/usr/include/sys/_clock_id.h:81:25: note: expanded
> from =
> > macro 'CLOCK_BOOTTIME'<br>=C2=A0 =C2=A081 | #define
> CLOCK_BOOTTIME =
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0CLOCK_MONOTONIC<br>=C2=A0 =C2=A0
> =C2=A0 |=
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
> =C2=
> > =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
> ^<br>/usr/include/sys/_clock_id.h:56=
> > :26: note: expanded from macro 'CLOCK_MONOTONIC'<br>=C2=A0
> =C2=A056=
> > | #define CLOCK_MONOTONIC =C2=A0 =C2=A0 =C2=A0 =C2=A0 4<br>=C2=A0
> =C2=A0 =
> > =C2=A0 | =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
> =C2=
> > =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
> ^<br>../src/intel/common/xe/i=
> > ntel_gem.c:66:9: note: previous case defined here<br>=C2=A0 =C2=A066 |
> =C2=
> > =A0 =C2=A0case CLOCK_MONOTONIC:<br>=C2=A0 =C2=A0 =C2=A0 | =C2=A0 =C2=A0
> =C2=
> > =A0 =C2=A0 ^<br>/usr/include/sys/_clock_id.h:56:26: note: expanded from
> mac=
> > ro 'CLOCK_MONOTONIC'<br>=C2=A0 =C2=A056 | #define
> CLOCK_MONOTONIC =
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 4<br>=C2=A0 =C2=A0 =C2=A0 | =C2=A0 =C2=A0
> =C2=
> > =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0
> =C2=A0 =
> > =C2=A0 =C2=A0 =C2=A0 ^<br>1 error
> generated.</div></div></blockquote></div>=
> > </div><div dir=3D"auto"><br></div><div dir=3D"auto"><div
> class=3D"gmail_quo=
> > te"><div>Mesa needs to be updated to not assume these are distinct
> values.<=
> > /div><div><br></div><div>Warner</div><div>=C2=A0</div><blockquote
> class=3D"=
> > gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc
> solid;padding-=
> > left:1ex"><div dir=3D"ltr"><div><font color=3D"#888888">Thanks<br
> clear=3D"=
> > all"></font></div><div></div></div><br><div class=3D"gmail_quote"><div
> dir=
> > =3D"ltr" class=3D"gmail_attr">Warner Losh <<a href=3D"mailto:
> imp@freebsd=
> > .org" rel=3D"noreferrer" target=3D"_blank">imp@freebsd.org</a>>
> escreveu=
> > (sexta, 31/05/2024 =C3=A0(s) 15:47):<br></div><blockquote
> class=3D"gmail_q=
> > uote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid
> rgb(204,204,2=
> > 04);padding-left:1ex">The branch main has been updated by imp:<br>
> > <br>
> > URL: <a href=3D"
> https://cgit.FreeBSD.org/src/commit/?id=3D108de784513d87bbe=
> > 850e7b003a73e26b5b54caa" rel=3D"noreferrer noreferrer"
> target=3D"_blank">ht=
> > tps://
> cgit.FreeBSD.org/src/commit/?id=3D108de784513d87bbe850e7b003a73e26b5b=
> > 54caa</a><br>
> > <br>
> > commit 108de784513d87bbe850e7b003a73e26b5b54caa<br>
> > Author:=C2=A0 =C2=A0 =C2=A0Val Packett <val@packett.cool><br>
> > AuthorDate: 2024-05-31 14:45:02 +0000<br>
> > Commit:=C2=A0 =C2=A0 =C2=A0Warner Losh <imp@FreeBSD.org><br>
> > CommitDate: 2024-05-31 14:45:02 +0000<br>
> > <br>
> > =C2=A0 =C2=A0 Redefine CLOCK_BOOTTIME to alias CLOCK_MONOTONIC, not
> CLOCK_U=
> > PTIME<br>
> > <br>
> > =C2=A0 =C2=A0 The suspend-awareness situation with monotonic clocks
> across =
> > platforms<br>
> > =C2=A0 =C2=A0 is kind of a mess, let's try not making it worse.<br>
> > <br>
> > =C2=A0 =C2=A0 On Linux, CLOCK_MONOTONIC does NOT count suspended time,
> and<=
> > br>
> > =C2=A0 =C2=A0 CLOCK_BOOTTIME was introduced to INCLUDE suspended
> time.<br>
> > <br>
> > =C2=A0 =C2=A0 On OpenBSD, CLOCK_MONOTONIC DOES count suspended time, and
> CL=
> > OCK_UPTIME<br>
> > =C2=A0 =C2=A0 was introduced to EXCLUDE suspended time.<br>
> > <br>
> > =C2=A0 =C2=A0 On macOS, it's the same as OpenBSD, but with
> CLOCK_UPTIME=
> > _RAW.<br>
> > <br>
> > =C2=A0 =C2=A0 Right now, we do not have a monotonic clock that counts
> suspe=
> > nded time.<br>
> > =C2=A0 =C2=A0 We have CLOCK_UPTIME as a distinct ID alias, and
> CLOCK_BOOTTI=
> > ME as a<br>
> > =C2=A0 =C2=A0 preprocessor alias, both being effectively
> `CLOCK_MONOTONIC` =
> > for now.<br>
> > <br>
> > =C2=A0 =C2=A0 When we introduce a suspend-aware clock in the future, it
> wou=
> > ld make a<br>
> > =C2=A0 =C2=A0 lot more sense to do it the OpenBSD/macOS way, i.e. to
> make<b=
> > r>
> > =C2=A0 =C2=A0 CLOCK_MONOTONIC include suspended time and make
> CLOCK_UPTIME =
> > exclude it,<br>
> > =C2=A0 =C2=A0 because that's what the name CLOCK_UPTIME implies: a
> devi=
> > ation from the<br>
> > =C2=A0 =C2=A0 default intended for the uptime command to allow it to
> only s=
> > how the<br>
> > =C2=A0 =C2=A0 time the system was actually up and not suspended.<br>
> > <br>
> > =C2=A0 =C2=A0 Let's change the define right now to make sure
> software u=
> > sing the define<br>
> > =C2=A0 =C2=A0 would not end up using the ID of the wrong clock in the
> futur=
> > e, and fix<br>
> > =C2=A0 =C2=A0 the IDs in the Linux compat code to match the expected
> change=
> > s too.<br>
> > <br>
> > =C2=A0 =C2=A0 See <a href=3D"
> https://bugzilla.mozilla.org/show_bug.cgi?id=
> > =3D1824084" rel=3D"noreferrer noreferrer" target=3D"_blank">
> https://bugzill=
> > a.mozilla.org/show_bug.cgi?id=3D1824084</a><br>
> > =C2=A0 =C2=A0 for more discussion.<br>
> > <br>
> > =C2=A0 =C2=A0 Fixes:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 155f15118a77
> ("=
> > clock_gettime: Add Linux aliases for CLOCK_*")<br>
> > =C2=A0 =C2=A0 Fixes:=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 25ada637362d
> ("=
> > Map Linux CLOCK_BOOTTIME to native CLOCK_UPTIME.")<br>
> > =C2=A0 =C2=A0 Sponsored by:=C2=A0 =C2=A0<a href=3D"
> https://www.patreon.com/=
> > valpackett" rel=3D"noreferrer noreferrer" target=3D"_blank">
> https://www.pat=
> > reon.com/valpackett</a><br>
> > =C2=A0 =C2=A0 Reviewed by:=C2=A0 =C2=A0 kib, imp<br>
> > =C2=A0 =C2=A0 Differential Revision:=C2=A0 <a href=3D"
> https://reviews.freeb=
> > sd.org/D39270" rel=3D"noreferrer noreferrer" target=3D"_blank">
> https://revi=
> > ews.freebsd.org/D39270</a><br>
> > ---<br>
> > =C2=A0sys/compat/linux/linux_time.c | 6 +++---<br>
> > =C2=A0sys/sys/_clock_id.h=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0| 2
> +-<br=
> > >
> > =C2=A02 files changed, 4 insertions(+), 4 deletions(-)<br>
> > <br>
> > diff --git a/sys/compat/linux/linux_time.c
> b/sys/compat/linux/linux_time.c<=
> > br>
> > index e9e5cf075210..f4dd26dd3d2a 100644<br>
> > --- a/sys/compat/linux/linux_time.c<br>
> > +++ b/sys/compat/linux/linux_time.c<br>
> > @@ -287,7 +287,7 @@ linux_to_native_clockid(clockid_t *n, clockid_t
> l)<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 *n =3D
> CLOCK_REALTI=
> > ME;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 break;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 case LINUX_CLOCK_MONOTONIC:<br>
> > -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*n =3D
> CLOCK_MONOTO=
> > NIC;<br>
> > +=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*n =3D
> CLOCK_UPTIME=
> > ;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 break;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 case LINUX_CLOCK_PROCESS_CPUTIME_ID:<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 *n =3D
> CLOCK_PROCES=
> > S_CPUTIME_ID;<br>
> > @@ -300,10 +300,10 @@ linux_to_native_clockid(clockid_t *n, clockid_t
> l)<br=
> > >
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 break;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 case LINUX_CLOCK_MONOTONIC_COARSE:<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 case LINUX_CLOCK_MONOTONIC_RAW:<br>
> > -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*n =3D
> CLOCK_MONOTO=
> > NIC_FAST;<br>
> > +=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*n =3D
> CLOCK_UPTIME=
> > _FAST;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 break;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 case LINUX_CLOCK_BOOTTIME:<br>
> > -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*n =3D
> CLOCK_UPTIME=
> > ;<br>
> > +=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0*n =3D
> CLOCK_MONOTO=
> > NIC;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 break;<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 case LINUX_CLOCK_REALTIME_ALARM:<br>
> > =C2=A0 =C2=A0 =C2=A0 =C2=A0 case LINUX_CLOCK_BOOTTIME_ALARM:<br>
> > diff --git a/sys/sys/_clock_id.h b/sys/sys/_clock_id.h<br>
> > index 47a551428dc3..728346a0f0ab 100644<br>
> > --- a/sys/sys/_clock_id.h<br>
> > +++ b/sys/sys/_clock_id.h<br>
> > @@ -78,7 +78,7 @@<br>
> > =C2=A0 * Linux compatible names.<br>
> > =C2=A0 */<br>
> > =C2=A0#if __BSD_VISIBLE<br>
> > -#define=C2=A0 =C2=A0 =C2=A0 =C2=A0 CLOCK_BOOTTIME=C2=A0 =C2=A0 =C2=A0
> =C2=
> > =A0 =C2=A0 CLOCK_UPTIME<br>
> > +#define=C2=A0 =C2=A0 =C2=A0 =C2=A0 CLOCK_BOOTTIME=C2=A0 =C2=A0 =C2=A0
> =C2=
> > =A0 =C2=A0 CLOCK_MONOTONIC<br>
> > =C2=A0#define=C2=A0 =C2=A0 =C2=A0 =C2=A0 CLOCK_REALTIME_COARSE=C2=A0
> =C2=A0=
> > CLOCK_REALTIME_FAST<br>
> > =C2=A0#define=C2=A0 =C2=A0 =C2=A0 =C2=A0 CLOCK_MONOTONIC_COARSE=C2=A0
> CLOCK=
> > _MONOTONIC_FAST<br>
> > =C2=A0#endif<br>
> > <br>
> > </blockquote></div><br clear=3D"all"><br><span
> class=3D"gmail_signature_pre=
> > fix">-- </span><br><div dir=3D"ltr" class=3D"gmail_signature"><div
> dir=3D"l=
> > tr"><div><font color=3D"#888888">Nuno
> Teixeira</font></div><div><div><font =
> > color=3D"#888888">
> > FreeBSD UNIX:=C2=A0 <eduardo@FreeBSD.org>=C2=A0 =C2=A0Web:=C2=A0
> <a h=
> > ref=3D"https://FreeBSD.org" rel=3D"noreferrer noreferrer"
> target=3D"_blank"=
> > >https://FreeBSD.org</a><br></font></div></div></div></div>
> > </blockquote></div></div></div>
> > </div>
> >
> > --0000000000000d72080619d34a39--
> >
>
>
>