Mail Archives: cygwin/2006/11/13/10:08:56
Eric Blake wrote:
> So far, no one has found a good way for a cygwin process killed by Alt-F4
> (or the X button) to treat that as a SIGHUP and pass that information on
> to all of its children processes. So, by killing rxvt abruptly, you are
> indeed stranding bash as a zombie process.
Actually, I think rxvt/W11 already handles some of this; in
W11/w32/event.c, MSWin messages WM_DESTROY, WM_QUIT, and WM_CLOSE ...
case WM_DESTROY:
case WM_QUIT:
case WM_CLOSE:
event->type = ClientMessage;
event->xclient.format = 32;
event->xclient.data.l[0] =
XInternAtom(NULL,"WM_DELETE_WINDOW", FALSE);
break;
... are all turned into an X11-style XA_WMDELETEWINDOW message, which is
then handled (in src/command.c) by
case ClientMessage:
if (ev->xclient.format == 32
&& (Atom)ev->xclient.data.l[0] == h->xa[XA_WMDELETEWINDOW])
exit(EXIT_SUCCESS);
(There is a little translation between the string "WM_DELETE_WINDOW",
the struct h->xa, and the enum which defines XA_WMDELETEWINDOW, but
that's basically what happens).
Or what *should* be happening.
So, I think that in src/command.c, right before exit() is called, rxvt
ought to kill its children -- except I thought exit() should do that
already?
--
Chuck
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