Mailing-List: contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT sources DOT redhat DOT com Delivered-To: mailing list cygwin AT sources DOT redhat DOT com Message-ID: <002901c0c833$d32553a0$3e8a42d8@hpcustomer> From: "Tim Baker" To: References: <002101c0c82e$8206abe0$3e8a42d8 AT hpcustomer> <2352393414 DOT 20010418214818 AT logos-m DOT ru> Subject: Re: cygwin apps in pipe ignore ctrl+c Date: Wed, 18 Apr 2001 11:17:26 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 > TB> I have a console app MyApp which runs in a pipe. MyApp calls > TB> CreateProcess() to launch OtherApp and later calls > TB> GenerateConsoleCtrlEvent() to send Ctrl+C to OtherApp. When > TB> OtherApp is non-Cygwin it is interrupted cleanly just as though > TB> the user had typed Ctrl+C from in the DOS window. But when > TB> OtherApp is a Cygwin application it ignores any number of > TB> CTRL_C_EVENTs I send and continues running. So a Cygwin > TB> app must be calling SetConsoleCtrlHandler() to intercept the > TB> CTRL_C_EVENT but for some reason it is not behaving properly > TB> when the Cygwin app is *running in a pipe*. (The Cygwin app IS > TB> attached to a Win32 console window which is required for > TB> GenterateConsoleCtrlEvent() to work.) > > use kill() function to interrupt cygwin application. this is a normal > unix way to do such things. Sure, but I do not know if OtherApp is going to be a Cygwin app or not. Sometimes it is not, so calling Cygwin's kill() might not be appropriate. In any event, this bug effects typing Ctrl+C in a console window too. When I run "gcc -pipe file.c" and CPP is running, I type Ctrl+C and CPP does not die. I then type Ctrl+Alt+Del to see the running tasks and GCC is gone but not CPP (CPP continues running then exits). -- Tim Baker -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple