Mail Archives: cygwin/2002/01/08/12:47:48
If you are writing cygwin programs, don't use windows signal mechanisms
like SetConsoleCtrlHandler. Just use signal()/kill(), et al.
If your program does not use cygwin then investigate the currently active
thread "bash/cmd CTRL-C problem...".
cgf
On Tue, Jan 08, 2002 at 12:31:47PM -0500, Timothy Wall wrote:
>I'm trying to get some consistent behavior under the command shell and cygwin,
>tho' without much luck so far. I'd like to know if there's a canonical
>SIGINT/SIGTERM handling convention for console processes (taking cygwin into
>account, or barring that for invocations in cmd.exe only).
>
>The important thing for my program is that it perform certain cleanup
>operations on exit (normally taken care of with a signal handler attached to
>SIGINT/SIGTERM).
>
>Under the cmd.exe, the handler usually gets called when it's installed with
>signal() or with SetConsoleCtrlHandler (there have been cases where it does
>not, but I can't reliably reproduce them...).
>
>Under bash, however, it looks like the consolectrlhandler never even gets a
>chance to finish before the process is wiped. Installing with signal() also
>seems that the process is wiped before the cleanup gets a chance to run.
>
>(the handler sets a flag which the main thread uses to determine that it's
>time to exit).
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Bug reporting: http://cygwin.com/bugs.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
- Raw text -