On Aug 31 18:48, Takashi Yano via Cygwin-patches wrote: > - Pseudo console internally sends escape sequence CSI6n (query cursor > position) on startup of non-cygwin apps. If the terminal does not > support CSI6n, CreateProcess() hangs waiting for response. To prevent > hang, this patch disables pseudo console if the terminal does not > have CSI6n. This is checked on the first execution of non-cygwin > app using the following steps. > 1) Check if the terminal support ANSI escape sequences by looking > into terminfo database. If terminfo has cursor_home (ESC [H), > the terminal is supposed to support ANSI escape sequences. > 2) If the terminal supports ANSI escape sequneces, send CSI6n for > a test and wait for a responce for 40ms. > 3) If there is a responce within 40ms, CSI6n is supposed to be > supported. > Also set-title capability is checked, and removes escape sequence > for setting window title if the terminal does not have the set- > title capability. > --- > winsup/cygwin/fhandler.h | 1 + > winsup/cygwin/fhandler_tty.cc | 235 ++++++++++++++++++++++++++++++---- > winsup/cygwin/spawn.cc | 18 ++- > winsup/cygwin/tty.cc | 3 + > winsup/cygwin/tty.h | 3 + > 5 files changed, 230 insertions(+), 30 deletions(-)
Pushed with minor typo fixes (responce -> response, responced -> responded). A native english speaker will probably use different expressions, like (not responded -> not acknowledged) or something, but I think it's ok as is. Thanks for your explanations in your other mail! Corinna
