The function
process-alive-p
returns
t
if
process
is alive, that is, if process-kill has not been called on the process.
(mp:process-alive-p mp:*current-process*)
=> T
(let ((process (mp:process-run-function
"test" nil 'identity nil)))
(sleep 2)
(mp:process-alive-p process))
=> NIL
LispWorks User Guide and Reference Manual - 21 Dec 2011