david@uunet.uu.net (David Hull) (02/10/89)
A while ago there was some discussion about how to start a process in a
ttysw after the ttysw has already been created. I stumbled across this
while looking through the SunOS 3.4 source code. As far as I know it is
completely undocumented and may not work in later releases, though it
appears that is does still exist under SunOS 4.0.
The call you want to use is:
Tty tty;
char *argv[] = { "vi", 0 };
int pid;
...
pid = ttysw_fork_it(tty, argv);
where ttysw is the Tty that was returned by window_create(), argv is the
null-terminated list of arguments, and pid is the process id of the
process that is forked off.
I called ttysw_fork_it() in the frame's wait3 handler (set with
notify_set_wait3_func()), to restart the editor if the user quit by
mistake. As far as I know, there isn't any way to create a ttysw without
a program running in it.
I hope this is of help.
-David