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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: mail@daniel-mendler.de,  emacs-devel@gnu.org
Subject: Re: emacsclient in elisp
Date: Sat, 22 May 2021 10:31:47 -0400	[thread overview]
Message-ID: <jwvlf867sor.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83tumukgiq.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 22 May 2021 17:08:29 +0300")

> So we will enter read-from-minibuffer, and read the stuff from stdin
> till the first newline.  How do we know what's there is for us, not
> for the stdin-process?

This is a question to ask the programmers who decided to use both at the
same time: it'll be their responsibility to arrange for the calls to
those functions to happen at the right time in the right order and for
the communication protocol to be designed accordingly.  I don't think
there's much we can do on our side.

> The scenario is that we have the process for reading from stdin, but
> some function we called decides to ask the user.

BTW, a plain (while <read-from-minibuffer> <process-command>) setup we
can have the same problem: if one of the functions called by
<process-command> decides unexpectedly to call `read-from-minibuffer`,
it can wreak havoc in your communication protocol.

Again, there's nothing we can do about it on our side: it's the
responsibility of the programmers writing that code to make sure it
doesn't happen.


        Stefan


PS: Admittedly, using a process object will make things a bit worse,
  since, contrary to `read-from-minibuffer`, the programmer has no real
  control over the amount of data read by `accept-process-output`
  before it's passed to the process filter, which is why I said above
  that it's also a question of protocol-design to make sure that if
  there's data meant for `read-from-minibuffer` some mechanism in the
  protocol should make sure it won't be sent while Emacs is inside
  `accept-process-output`.




  reply	other threads:[~2021-05-22 14:31 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-19 12:50 emacsclient in elisp Daniel Mendler
2021-05-19 13:41 ` Stefan Monnier
2021-05-19 14:13   ` Daniel Mendler
2021-05-19 14:55     ` T.V Raman
2021-05-20 14:31     ` Jean Louis
2021-05-20 15:10       ` Eli Zaretskii
2021-05-20 15:52         ` Daniel Mendler
2021-05-20 16:00           ` Eli Zaretskii
2021-05-20 16:40             ` Stefan Monnier
2021-05-20 17:49               ` Daniel Mendler
2021-05-20 18:59                 ` Eli Zaretskii
2021-05-20 19:10                   ` Daniel Mendler
2021-05-20 19:45                     ` Eli Zaretskii
2021-05-20 20:54                       ` Daniel Mendler
2021-05-21  6:16                         ` Eli Zaretskii
2021-05-21 10:33                           ` Daniel Mendler
2021-05-21 10:44                             ` Eli Zaretskii
2021-05-21 16:25                             ` Jean Louis
2021-05-21  6:38                         ` Jean Louis
2021-05-21  6:36                       ` Jean Louis
2021-05-21  7:10                         ` Eli Zaretskii
2021-05-20 21:21                   ` Stefan Monnier
2021-05-21  6:18                     ` Eli Zaretskii
2021-05-21 10:34                       ` Eli Zaretskii
2021-05-21 14:55                         ` Stefan Monnier
2021-05-21 15:08                           ` Eli Zaretskii
2021-05-21 15:33                             ` Stefan Monnier
2021-05-21 14:51                       ` Stefan Monnier
2021-05-21 15:06                         ` Eli Zaretskii
2021-05-21 15:29                           ` Stefan Monnier
2021-05-21 18:36                             ` Eli Zaretskii
2021-05-21 21:51                               ` Stefan Monnier
2021-05-22  6:11                                 ` Eli Zaretskii
2021-05-22 10:09                                   ` Daniel Mendler
2021-05-22 10:19                                     ` Eli Zaretskii
2021-05-22 10:29                                       ` Eli Zaretskii
2021-05-22 11:49                                         ` Daniel Mendler
2021-05-22 12:26                                           ` Eli Zaretskii
2021-05-22 13:55                                             ` Stefan Monnier
2021-05-22 14:08                                               ` Eli Zaretskii
2021-05-22 14:31                                                 ` Stefan Monnier [this message]
2021-05-21 16:10                         ` Daniel Mendler
2021-05-21 16:36                         ` Jean Louis
2021-05-21  6:27               ` Jean Louis
2021-05-21  7:07                 ` Eli Zaretskii
2021-05-21  7:25                   ` Jean Louis
2021-05-21  6:21         ` Jean Louis
2021-05-21  7:08           ` Eli Zaretskii
2021-05-21  7:26             ` Jean Louis
2021-05-21 10:31               ` Eli Zaretskii
2021-05-21 16:07                 ` Jean Louis
2021-05-21 17:41                   ` Eli Zaretskii
2021-05-21 17:43                   ` Eli Zaretskii
2021-05-21 22:05                     ` Jean Louis
2021-05-22  6:12                       ` Eli Zaretskii
2021-05-19 21:56 ` Daniel Mendler
2021-05-19 22:43   ` chad
2021-05-20  8:42     ` Daniel Mendler
2021-05-20 15:59   ` Arthur Miller
2021-05-20 17:45     ` Daniel Mendler
2021-05-21 19:52       ` Arthur Miller

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