2 Aug
2021
2 Aug
'21
11:33 p.m.
John Cowan wrote:
Andrew Warkentin wrote:
That's almost exactly what what ITS does. You open the USR: device and
get a file descriptor (not really, but close enough) into the child
process (inferior job).
There's a third kind of primitive that is
superior to either spawn()
or fork() IMO, specifically one that creates a completely empty
child process and returns a context that lets the parent set up the
child's state using normal APIs.
In that case you don't need *any*
primitive except create_empty_process():
you can do exec() by opening the file, writing to /proc/<child>/mem