diff options
| -rw-r--r-- | winsup/cygwin/ChangeLog | 7 | ||||
| -rw-r--r-- | winsup/cygwin/fhandler.h | 1 | ||||
| -rw-r--r-- | winsup/cygwin/spawn.cc | 12 |
3 files changed, 19 insertions, 1 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 82de82a6e..186f22fa2 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,4 +1,11 @@ 2011-10-07 Corinna Vinschen <corinna@vinschen.de> + Christopher Faylor <me.cygwin2011@cgf.cx> + + * fhandler.h (fhandler_console::tc_getpgid): New function. + * spawn.cc (spawn_guts): Add logic to put pure-windows processes "in + the background" when they are started that way. + +2011-10-07 Corinna Vinschen <corinna@vinschen.de> * include/sys/cygwin.h (cygwin_getinfo_types): Define values additionally as preprocessor symbols. diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h index 3cbcba91d..be6e012b0 100644 --- a/winsup/cygwin/fhandler.h +++ b/winsup/cygwin/fhandler.h @@ -1100,6 +1100,7 @@ private: tty_min *tc () const {return &(shared_console_info->tty_min_state);} public: + static pid_t tc_getpgid () {return shared_console_info->tty_min_state.getpgid ();} fhandler_console (fh_devices); static console_state *open_shared_console (HWND hw, HANDLE& h) { diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc index 37769f78e..40c28f77f 100644 --- a/winsup/cygwin/spawn.cc +++ b/winsup/cygwin/spawn.cc @@ -558,7 +558,17 @@ spawn_guts (const char *prog_arg, const char *const *argv, && (!ch.iscygwin () || mode != _P_OVERLAY || cygheap->fdtab.need_fixup_before ())) c_flags |= CREATE_SUSPENDED; - + /* If a native application should be spawned, we test here if the spawning + process is running in a console and, if so, if it's a foreground or + background process. If it's a background process, we start the native + process with the CREATE_NEW_PROCESS_GROUP flag set. This lets the native + process ignore Ctrl-C by default. If we don't do that, pressing Ctrl-C + in a console will break native processes running in the background, + because the Ctrl-C event is sent to all processes in the console, unless + they ignore it explicitely. CREATE_NEW_PROCESS_GROUP does that for us. */ + if (!ch.iscygwin () && myself->ctty >= 0 && iscons_dev (myself->ctty) + && fhandler_console::tc_getpgid () != getpgrp ()) + c_flags |= CREATE_NEW_PROCESS_GROUP; ch.refresh_cygheap (); /* When ruid != euid we create the new process under the current original account and impersonate in child, this way maintaining the different |