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From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: Phillip Wood <phillip.wood@dunelm.org.uk>
Cc: Git Mailing List <git@vger.kernel.org>, carenas@gmail.com
Subject: Re: [PATCH 4/4] terminal: restore settings on SIGTSTP
Date: Wed, 9 Mar 2022 13:19:32 +0100 (CET)	[thread overview]
Message-ID: <nycvar.QRO.7.76.6.2203091310080.357@tvgsbejvaqbjf.bet> (raw)
In-Reply-To: <20220304131126.8293-5-phillip.wood123@gmail.com>

Hi Phillip,

On Fri, 4 Mar 2022, Phillip Wood wrote:

> From: Phillip Wood <phillip.wood@dunelm.org.uk>
>
> If the user suspends git while it is waiting for a keypress reset the
> terminal before stopping and restore the settings when git resumes. If
> the user tries to resume in the background print an error
> message (taking care to use async safe functions) before stopping
> again. Ideally we would reprint the prompt for the user when git
> resumes but this patch just restarts the read().
>
> The signal handler is established with sigaction() rather than using
> sigchain_push() as this allows us to control the signal mask when the
> handler is invoked and ensure SA_RESTART is used to restart the
> read() when resuming.

This description makes sense. From my understanding of signals, the code
also does make sense, but it is unfortunate that it has to be so much code
to implement something as straight-forward as suspend/resume.

FWIW I tested the `add -p` command with these patches on Windows and it
still works as well as when I had developed it.

Thank you,
Dscho

  parent reply	other threads:[~2022-03-09 12:19 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-04 13:11 [PATCH 0/4] builtin add -p: hopefully final readkey fixes Phillip Wood
2022-03-04 13:11 ` [PATCH 1/4] terminal: use flags for save_term() Phillip Wood
2022-03-04 20:40   ` Ramsay Jones
2022-03-07 11:11     ` Phillip Wood
2022-03-07 20:21       ` Ramsay Jones
2022-03-08 10:41         ` Phillip Wood
2022-03-05 14:02   ` Ævar Arnfjörð Bjarmason
2022-03-07 10:45     ` Phillip Wood
2022-03-07 12:06       ` Ævar Arnfjörð Bjarmason
2022-03-04 13:11 ` [PATCH 2/4] terminal: don't assume stdin is /dev/tty Phillip Wood
2022-03-04 20:42   ` Ramsay Jones
2022-03-04 13:11 ` [PATCH 3/4] terminal: work around macos poll() bug Phillip Wood
2022-03-04 13:11 ` [PATCH 4/4] terminal: restore settings on SIGTSTP Phillip Wood
2022-03-05 13:59   ` Ævar Arnfjörð Bjarmason
2022-03-07 10:53     ` Phillip Wood
2022-03-07 11:49       ` Ævar Arnfjörð Bjarmason
2022-03-07 13:49         ` Phillip Wood
2022-03-07 14:45           ` Ævar Arnfjörð Bjarmason
2022-03-08 10:54             ` Phillip Wood
2022-03-09 12:19   ` Johannes Schindelin [this message]
2022-03-10 16:06     ` Phillip Wood
2022-03-09 11:03 ` [PATCH v2 0/4] builtin add -p: hopefully final readkey fixes Phillip Wood
2022-03-09 11:03   ` [PATCH v2 1/4] terminal: use flags for save_term() Phillip Wood
2022-03-11 16:52     ` Carlo Arenas
2022-03-14 10:49       ` Phillip Wood
2022-03-09 11:03   ` [PATCH v2 2/4] terminal: don't assume stdin is /dev/tty Phillip Wood
2022-03-09 11:03   ` [PATCH v2 3/4] terminal: work around macos poll() bug Phillip Wood
2022-03-10 13:35     ` Ævar Arnfjörð Bjarmason
2022-03-10 16:02       ` Phillip Wood
2022-03-10 18:02         ` Junio C Hamano
2022-03-09 11:03   ` [PATCH v2 4/4] terminal: restore settings on SIGTSTP Phillip Wood
2022-03-09 23:10   ` [PATCH v2 0/4] builtin add -p: hopefully final readkey fixes Junio C Hamano
2022-03-09 23:37     ` Junio C Hamano
2022-03-10 13:28       ` Phillip Wood
2022-03-10 18:18         ` Phillip Wood
2022-03-10 18:53           ` Junio C Hamano
2022-03-10 13:25   ` Johannes Schindelin
2022-03-10 16:08     ` Phillip Wood
2022-03-15 10:57 ` [PATCH v3 " Phillip Wood
2022-03-15 10:57   ` [PATCH v3 1/4] terminal: use flags for save_term() Phillip Wood
2022-03-15 10:57   ` [PATCH v3 2/4] terminal: don't assume stdin is /dev/tty Phillip Wood
2022-03-15 17:42     ` Junio C Hamano
2022-03-15 18:01       ` rsbecker
2022-03-15 19:05         ` Junio C Hamano
2022-03-15 19:38           ` rsbecker
2022-03-15 10:57   ` [PATCH v3 3/4] terminal: work around macos poll() bug Phillip Wood
2022-03-15 10:57   ` [PATCH v3 4/4] terminal: restore settings on SIGTSTP Phillip Wood
2022-03-15 17:51     ` Junio C Hamano
2022-03-16 18:54 ` [PATCH v4 0/4] builtin add -p: hopefully final readkey fixes Phillip Wood
2022-03-16 18:54   ` [PATCH v4 1/4] terminal: use flags for save_term() Phillip Wood
2022-03-16 18:54   ` [PATCH v4 2/4] terminal: don't assume stdin is /dev/tty Phillip Wood
2022-03-16 18:54   ` [PATCH v4 3/4] terminal: work around macos poll() bug Phillip Wood
2022-03-16 18:54   ` [PATCH v4 4/4] terminal: restore settings on SIGTSTP Phillip Wood

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