23 Jan
2005
23 Jan
'05
12:32 p.m.
Thomas Frieden said:
Hi,
Tony Wyatt wrote:
Personally, I prefer pthreads for daemon processes. But for shells...
Yeah, fork works there.
--
We'll jump off that bridge when we get there.
Do we really need the "fork()"
functionality? Surely we don't need to
duplicate the entire volatile memory of the current shell in order to
run another - all we need to do is "run" another shell with the same
Env and local variables, right? We could send the daughter shell a
message containing the current variable settings.
What if the shell uses internal data structure to store state ?
Surely the use of "fork()" is an
overkill for a shell?
No, absoultely not. In fact, shells are one of two cases where fork is
actually not absolutely horrendously braindead (the other is demon
processes).