Re: Suspend doesn't work in cmd
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 10" >> > 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... -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: Suspend doesn't work in cmd
On Mon, 18 May 2020 at 05:06, Takashi Yano wrote: > On Sun, 17 May 2020 19:57:15 +0200 > Kacper Michajlow via Cygwin 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 10" > > 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 -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
Re: Suspend doesn't work in cmd
On Sun, 17 May 2020 19:57:15 +0200 Kacper Michajlow via Cygwin 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 10" > 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 -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation:https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
