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From: Eli Zaretskii <eliz@gnu.org>
To: Ioannis Kappas <ioannis.kappas@gmail.com>
Cc: 46388@debbugs.gnu.org
Subject: bug#46388: 27.1; emacs -batch does not output messages immediately when invoked outside of the command prompt
Date: Tue, 09 Feb 2021 05:38:46 +0200	[thread overview]
Message-ID: <835z31lxkp.fsf@gnu.org> (raw)
In-Reply-To: <CAMRHuGB-z+uiS7F71vaLU2L8X-W9BAwUH0+aSDvGz7HmBYmnqQ@mail.gmail.com> (message from Ioannis Kappas on Mon, 8 Feb 2021 21:20:47 +0000)

> From: Ioannis Kappas <ioannis.kappas@gmail.com>
> Date: Mon, 8 Feb 2021 21:20:47 +0000
> 
>     There appears to be an issue with the /message/ function when
>     emacs is invoked in -batch mode on windows-nt from outside the
>     windows console (i.e. not directly from the command
>     prompt). Messages are not displayed to the user until emacs exits.
> 
>     Consider the following command from example, which suppose to
>     print the message "hi" first to the user and then exit after 5 seconds:
> 
>     : emacs -Q --batch --eval="(progn (message \"hi\") (sit-for 5))"
> 
>     When this command is invoked from within an emacs eshell on
>     windows, the message is only displayed to the user after about 5 seconds,
>     i.e when emacs is about to exit.

I believe this is because of buffering: Eshell on MS-Windows invokes
subprograms via pipes, which are buffered.





      parent reply	other threads:[~2021-02-09  3:38 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-08 21:20 bug#46388: 27.1; emacs -batch does not output messages immediately when invoked outside of the command prompt Ioannis Kappas
2021-02-08 21:42 ` Ioannis Kappas
2021-02-09  5:36   ` Eli Zaretskii
2021-02-09 20:15     ` Ioannis Kappas
2021-02-09 20:52       ` Eli Zaretskii
2021-02-09 21:14         ` Eli Zaretskii
     [not found]           ` <CAMRHuGC_p59uw_hmCL65Z0F1ZdFbVAf9MHcB-sX88bW6jchC-Q@mail.gmail.com>
2021-02-10 12:48             ` Ioannis Kappas
2021-02-10 15:57               ` Eli Zaretskii
2021-02-11  8:10                 ` Ioannis Kappas
2021-02-11 14:09                   ` Eli Zaretskii
2021-02-11 19:25                     ` Ioannis Kappas
2021-02-11 19:55                       ` Eli Zaretskii
2021-02-12 19:59                         ` Ioannis Kappas
2021-02-12 20:03                           ` Eli Zaretskii
2021-03-06 15:00                             ` Ioannis Kappas
2021-03-08  4:05                               ` Paul Eggert
2021-03-08  7:56                                 ` Ioannis Kappas
2021-03-11 14:27                                 ` Eli Zaretskii
2021-03-11 18:43                                   ` Paul Eggert
2021-02-11 21:15                     ` Paul Eggert
2021-02-09  3:38 ` Eli Zaretskii [this message]

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