Waits until a specified process dies, or a timeout is reached.
mp
process-join process &key timeout => flag
process⇩ |
A process. |
timeout⇩ |
A non-negative real or nil . |
flag |
A boolean. |
The function process-join
waits until the process process dies, or timeout seconds passed.
If the process dies then process-join
returns t
. If the timeout passed it returns nil
.
process-join
can be used on dead processes, and in this case returns t
immediately.
The effect of process-join
is similar to:
(mp:process-wait-with-timeout "Waiting for process to die" timeout #'(lambda (x) (not (mp:process-alive-p x))) process)
but the call above may not return until the next time the scheduler runs, possibly causing a delay. In contrast process-join
returns immediately when the process dies.
LispWorks® User Guide and Reference Manual - 01 Dec 2021 19:30:51