From: Matthew Leach <matthew@mattleach.net>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
Subject: Re: [PATCH v3] Add systemd socket launching support
Date: Thu, 31 Mar 2016 20:32:52 +0100 [thread overview]
Message-ID: <87y48ya1ej.fsf@mattleach.net> (raw)
In-Reply-To: <8737r6bg84.fsf@mattleach.net> (Matthew Leach's message of "Thu, 31 Mar 2016 20:27:23 +0100")
Matthew Leach <matthew@mattleach.net> writes:
> Hi Stefan,
>
> Stefan Monnier <monnier@IRO.UMontreal.CA> writes:
>
>>> And I object to exposing file descriptors to Lisp, certainly when that
>>> is not necessary.
>>
>> In other similar functionality I've seen over the years, an alternative
>> was to pass the fd as an additional argument on the command line, but in
>> any case whether it's received from the environment or the command line,
>> the file-descriptor to use will just be an integer, and it's already
>> exposed to Lisp.
>>
>> So, AFAICT we just need 3 elements:
>> - a function to get the FD number from systemd (which we could write in
>> Elisp, but is much better implemented as a call to systemd's support
>> library).
>> - a way to create a process-object from an existing file-descriptor
>> number.
>
> Should the socket descriptor number be passed in from Lisp, or should
> this be a Boolean flag that tells make-network-process to consult an
> internal variable? We can separate the libsystemd code from the
> make-network-process logic easily in both scenarios.
I forgot to mention, my vote is for latter as it prevents users passing
in garbage to make-network-process.
--
Matt
next prev parent reply other threads:[~2016-03-31 19:32 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-30 20:53 [PATCH v3] Add systemd socket launching support Matthew Leach
2016-03-31 12:55 ` Stefan Monnier
2016-03-31 13:31 ` Matthew Leach
2016-03-31 17:11 ` Stefan Monnier
2016-03-31 17:38 ` Matthew Leach
2016-03-31 17:41 ` Eli Zaretskii
2016-03-31 18:14 ` Stefan Monnier
2016-03-31 19:27 ` Matthew Leach
2016-03-31 19:32 ` Matthew Leach [this message]
2016-03-31 19:34 ` Eli Zaretskii
2016-03-31 21:22 ` Stefan Monnier
2016-04-01 7:10 ` Eli Zaretskii
2016-04-01 13:17 ` Stefan Monnier
2016-04-01 13:41 ` Eli Zaretskii
2016-04-01 18:43 ` Stefan Monnier
2016-04-01 19:47 ` Matthew Leach
2016-04-01 19:58 ` Eli Zaretskii
2016-04-03 0:53 ` Live System User
2016-03-31 16:32 ` Eli Zaretskii
2016-03-31 16:51 ` Matthew Leach
2016-03-31 16:56 ` Eli Zaretskii
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