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* fhandler.h (fhandler_console::tc_getpgid): New function.

Browse Source 
* spawn.cc (spawn_guts): Add logic to put pure-windows processes "in the
background" when they are started that way.
This commit is contained in:
Christopher Faylor 2011-10-07 13:52:20 +00:00
parent c53c656b1c
commit 3d1dd0789e
3 changed files with 19 additions and 1 deletions
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7
winsup/cygwin/ChangeLog
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@ -1,3 +1,10 @@
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

1
winsup/cygwin/fhandler.h
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@ -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)
{

12
winsup/cygwin/spawn.cc
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@ -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