* Suspend doesn't work in cmd
@ 2020-05-17 17:57 Kacper Michajlow
2020-05-18 3:05 ` Takashi Yano
0 siblings, 1 reply; 4+ messages in thread
From: Kacper Michajlow @ 2020-05-17 17:57 UTC (permalink / raw)
To: The Cygwin Mailing List
Hi,
Control keys doesn't seem to be working correctly under cmd.
STR:
1. Run bash in cmd.exe
2. Run anything, in my case "seq 1 100000"
3. Try to suspend job with CTRL+Z or suspend printing with CTRL+S
Ii will ignore request. Works in mintty, doesn't in cmd.
Cygwin built from e637d53
Thanks,
Kacper
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Suspend doesn't work in cmd
2020-05-17 17:57 Suspend doesn't work in cmd Kacper Michajlow
@ 2020-05-18 3:05 ` Takashi Yano
2020-05-19 10:54 ` Kacper Michajlow
0 siblings, 1 reply; 4+ messages in thread
From: Takashi Yano @ 2020-05-18 3:05 UTC (permalink / raw)
To: cygwin
On Sun, 17 May 2020 19:57:15 +0200
Kacper Michajlow via Cygwin <cygwin@cygwin.com> wrote:
> Hi,
>
> Control keys doesn't seem to be working correctly under cmd.
>
> STR:
> 1. Run bash in cmd.exe
> 2. Run anything, in my case "seq 1 100000"
> 3. Try to suspend job with CTRL+Z or suspend printing with CTRL+S
>
> Ii will ignore request. Works in mintty, doesn't in cmd.
Thanks for the report. This is a known problem, however,
it is hard to fix soon.
In current console implementation, ctrl-Z is processed in
read() system call. So, if process does not call read(),
ctlr-Z does not work.
You can confirm that ctrl-Z works for cat, od, etc. which
calls read().
One solution might be to introduce a thread to handle the
keystrokes. I wonder if it is worth enough to introduce such
a big modification for console code.
--
Takashi Yano <takashi.yano@nifty.ne.jp>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Suspend doesn't work in cmd
2020-05-18 3:05 ` Takashi Yano
@ 2020-05-19 10:54 ` Kacper Michajlow
2020-05-19 14:15 ` Andrey Repin
0 siblings, 1 reply; 4+ messages in thread
From: Kacper Michajlow @ 2020-05-19 10:54 UTC (permalink / raw)
To: The Cygwin Mailing List
On Mon, 18 May 2020 at 05:06, Takashi Yano <takashi.yano@nifty.ne.jp> wrote:
> On Sun, 17 May 2020 19:57:15 +0200
> Kacper Michajlow via Cygwin <cygwin@cygwin.com> wrote:
> > Hi,
> >
> > Control keys doesn't seem to be working correctly under cmd.
> >
> > STR:
> > 1. Run bash in cmd.exe
> > 2. Run anything, in my case "seq 1 100000"
> > 3. Try to suspend job with CTRL+Z or suspend printing with CTRL+S
> >
> > Ii will ignore request. Works in mintty, doesn't in cmd.
>
> Thanks for the report. This is a known problem, however,
> it is hard to fix soon.
>
> In current console implementation, ctrl-Z is processed in
> read() system call. So, if process does not call read(),
> ctlr-Z does not work.
>
> You can confirm that ctrl-Z works for cat, od, etc. which
> calls read().
>
> One solution might be to introduce a thread to handle the
> keystrokes. I wonder if it is worth enough to introduce such
> a big modification for console code.
>
Thanks for explanation. I report those bugs, because I kind of hope to get
away from mintty and use something like Windows Terminal for all envs. But
it doesn't look feasible for Cygwin.
- Kacper
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Suspend doesn't work in cmd
2020-05-19 10:54 ` Kacper Michajlow
@ 2020-05-19 14:15 ` Andrey Repin
0 siblings, 0 replies; 4+ messages in thread
From: Andrey Repin @ 2020-05-19 14:15 UTC (permalink / raw)
To: Kacper Michajlow, cygwin
Greetings, Kacper Michajlow!
> On Mon, 18 May 2020 at 05:06, Takashi Yano wrote:
>> On Sun, 17 May 2020 19:57:15 +0200
>> Kacper Michajlow wrote:
>> > Hi,
>> >
>> > Control keys doesn't seem to be working correctly under cmd.
>> >
>> > STR:
>> > 1. Run bash in cmd.exe
>> > 2. Run anything, in my case "seq 1 100000"
>> > 3. Try to suspend job with CTRL+Z or suspend printing with CTRL+S
>> >
>> > Ii will ignore request. Works in mintty, doesn't in cmd.
>>
>> Thanks for the report. This is a known problem, however,
>> it is hard to fix soon.
>>
>> In current console implementation, ctrl-Z is processed in
>> read() system call. So, if process does not call read(),
>> ctlr-Z does not work.
>>
>> You can confirm that ctrl-Z works for cat, od, etc. which
>> calls read().
>>
>> One solution might be to introduce a thread to handle the
>> keystrokes. I wonder if it is worth enough to introduce such
>> a big modification for console code.
>>
> Thanks for explanation. I report those bugs, because I kind of hope to get
> away from mintty and use something like Windows Terminal for all envs. But
> it doesn't look feasible for Cygwin.
Why not use mintty instead? :D
--
With best regards,
Andrey Repin
Tuesday, May 19, 2020 17:15:05
Sorry for my terrible english...
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-05-19 14:20 UTC | newest]
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2020-05-17 17:57 Suspend doesn't work in cmd Kacper Michajlow
2020-05-18 3:05 ` Takashi Yano
2020-05-19 10:54 ` Kacper Michajlow
2020-05-19 14:15 ` Andrey Repin
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