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Date:      Wed, 22 Oct 2014 16:07:58 -0700
From:      Jordan Hubbard <jkh@turbofuzz.com>
To:        Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.com>
Cc:        "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>
Subject:   Re: nosh version 1.9
Message-ID:  <6C9A0CEC-2169-48BB-8B80-EB3C37EE170E@turbofuzz.com>
In-Reply-To: <54482A5E.2050303@NTLWorld.com>
References:  <54430B41.3010301@NTLWorld.com> <5443191E.5050208@mu.org> <CAJ-VmomhxAkmVpAv5M%2Bh2HiEGnzHuXoZRh=E3LEvcRqbkoJ-5Q@mail.gmail.com> <34F30D28-DE9B-444F-885E-F438FEEA46EC@mu.org> <CAKYr3zwFyOh0VuQew5XtzKCNe0sDe2qc_5Jg3g9hT8pE7SyhJA@mail.gmail.com> <54482A5E.2050303@NTLWorld.com>

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> On Oct 22, 2014, at 3:06 PM, Jonathan de Boyne Pollard =
<J.deBoynePollard-newsgroups@NTLWorld.com =
<mailto:J.deBoynePollard-newsgroups@NTLWorld.com>> wrote:
>=20
> There have been, to my knowledge, three attempts (in 2005, 2008, and =
2013) to give launchd to the general BSD world that have involved more =
than just talk.  All have foundered.  The discomforting truth is that we =
aren't going to get launchd for doing service and system management for =
the very same reasons that we aren't going to get systemd for doing =
service and system management.  systemd is full of Linuxisms.  launchd =
is full of Machisms.  It's simply not a BSD program.  It's a Mach =
program.  (The fact that the initial process program isn't portable is =
obvious in hindsight.  I kicked myself. I've written several initial =
process programs before.  They aren't, and cannot be, limited to =
non-operating-system-specific stuff.)  One attempt to port launchd =
involved stubbing out the Machisms.  There has been a recent attempt to =
port systemd to FreeBSD that is in the same boat: stub out or remove all =
of the operating system specific parts, and one can get a program that =
will compile (with a lot of compiler warnings); but it doesn't function.
>=20
> The launchd train is never coming. =20

I aim to disprove that assertion sometime in the next 12 months.

I=E2=80=99ll also point out that it would have taken less time to port =
NetBSD=E2=80=99s COMPAT_MACH code than it=E2=80=99s probably taken to =
beat one=E2=80=99s head against mach ports in launchd.  They would =
certainly not be the first Mach code FreeBSD has ever seen (take a look =
at the VM system sometime!).

- Jordan




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