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Date: Tue, 21 Jul 2015 10:45:41 +0200
Subject: Re: SIGINT generated by Control-C, is not delivered in mintty
From: "Houder" <houder AT xs4all DOT nl>
To: cygwin AT cygwin DOT com, "Thomas Wolff" <towo AT towo DOT net>
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>> The trick is to make mintty NOT interact with a cons.
> Not sure in what way mintty would "interact" with the console here.

Hi Thomas,

You are the expert on mintty now ... I only observed a "pattern":

 - when 'ps ax' shows that mintty is "connected" to a 'cons', SIGINT is ignored
 - when 'ps ax' shows that mintty is NOT "connected" to a 'cons', SIGINT is NOT ignored

See the difference in the 2 cases below.

Henri

1. invocation of 'mintty' (when bash is connected to a cons)

PATH (64) = /usr/local/bin:/usr/bin:/drv/c/...
Executing .bash_profile
Executing .bashrc, $- = himBH, login_shell on
64-@@ ps ax
      PID    PPID    PGID     WINPID   TTY     UID    STIME COMMAND
     5076       1    5076       5076  cons0   1000 10:25:59 /usr/bin/bash <==== tty == cons
     4772    5076    4772       3768  cons0   1000 10:26:38 /usr/bin/ps
64-@@ mintty

... a new window opens
PATH (64) = /usr/local/bin:/usr/bin:/drv/c/WINDOWS/system32:/drv/c/WINDOWS:/drv/c/WINDOWS/System32/Wbem:/home/Henri/bin
Executing .bashrc, $- = himBH, login_shell off
64-@@ ps ax
      PID    PPID    PGID     WINPID   TTY     UID    STIME COMMAND
     4056    5076    4056       2852  cons0   1000 10:26:42 /usr/bin/mintty <==== tty == cons !!!!!
     1076    1884    1076       4852  pty0    1000 10:27:50 /usr/bin/ps
     5076       1    5076       5076  cons0   1000 10:25:59 /usr/bin/bash
     1884    4056    1884        812  pty0    1000 10:26:42 /usr/bin/bash
64-@@ <==== NOT responding to SIGINT

2. invocation of 'setsid mintty' (when bash is connected to a cons)

PATH (64) = /usr/local/bin:/usr/bin:/drv/c/...
Executing .bash_profile
Executing .bashrc, $- = himBH, login_shell on
64-@@ ps ax
      PID    PPID    PGID     WINPID   TTY     UID    STIME COMMAND
     3416    1380    3416       3560  cons0   1000 10:29:29 /usr/bin/ps
     1380       1    1380       1380  cons0   1000 10:29:24 /usr/bin/bash <==== tty == cons
64-@@ setsid mintty

... a new window opens
PATH (64) = /usr/local/bin:/usr/bin:/drv/c/WINDOWS/system32:/drv/c/WINDOWS:/drv/c/WINDOWS/System32/Wbem:/home/Henri/bin
Executing .bashrc, $- = himBH, login_shell off
64-@@ ps ax
      PID    PPID    PGID     WINPID   TTY     UID    STIME COMMAND
      896       1     896       1960  ?       1000 10:30:32 /usr/bin/mintty <==== tty != cons !!!!!
     4160    1512    4160       4652  pty0    1000 10:30:35 /usr/bin/ps
     1512     896    1512       2664  pty0    1000 10:30:32 /usr/bin/bash
I    1380       1    1380       1380  cons0   1000 10:29:24 /usr/bin/bash
64-@@ ^C
64-@@ <==== responding to SIGINT

=====


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