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From: L A Walsh <cygwin@tlinx.org>
To: Takashi Yano <takashi.yano@nifty.ne.jp>
Cc: cygwin@cygwin.com, Alvin Seville <alvinseville7cf@gmail.com>
Subject: Re: Cygwin doesn't handle SIGWINCH properly in Windows Terminal
Date: Sun, 14 Feb 2021 12:44:32 -0800	[thread overview]
Message-ID: <60298BB0.1070301@tlinx.org> (raw)
In-Reply-To: <20210214174358.f828f285a566846254c3c54a@nifty.ne.jp>

On 2021/02/14 00:43, Takashi Yano via Cygwin wrote:
> This is because cygwin console handles SIGWINCH when the input
> messages is processed. If the process does not call either read()
> or select(), SIGWINCH will not be sent. This is the long standing
> problem of the implementation and hard to fix.
>
> ....
>
> This seems to be a bug of console code. I will submit a patch
> for this issue.
>   
---
I'd be careful 'fixing' this, as it seems to work the same
way on linux / bash.

I have this func setup on bash_profile & bashrc on
both cygwin and linux:

# display new size of terminal when resized
:                                                         
showsize () {\
  declare s=$(stty size); s="(${s// /x})"  ;\
  printf "%s" "$s${s//?/$'\b'}"       ;\
}; export -f showsize

trap showsize SIGWINCH
-----
Of note, on linux, I didn't have to reset LINES/COLUMNS,
however, on cygwin, I note that I should.

Oh well -- hmmm....is that a bug?




  reply	other threads:[~2021-02-14 20:46 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-13 10:39 Alvin Seville
2021-02-13 17:38 ` Brian Inglis
2021-02-14  8:43 ` Takashi Yano
2021-02-14 20:44   ` L A Walsh [this message]
2021-02-15  0:05     ` Takashi Yano
2021-02-16  2:17       ` L A Walsh
2021-02-16  5:48         ` Marco Atzeri
2021-02-16  6:20           ` Brian Inglis
2021-02-16 10:26             ` Thomas Wolff
2021-02-16 10:38               ` Thomas Wolff
2021-02-16 21:55               ` L A Walsh
2021-02-15  0:21     ` Takashi Yano
2021-02-16 10:31   ` Takashi Yano
2021-02-16 11:31     ` Takashi Yano
2021-02-16 16:26       ` Brian Inglis
2021-02-16 20:37         ` Takashi Yano
2021-02-16 20:50           ` Thomas Wolff
2021-02-16 22:11             ` Brian Inglis

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