document the fact that kqueue will immediately return and not timeout when

nevents is 0. PR: kern/45291
2003-10-20 02:29:16 +00:00 · 2003-10-20 02:29:16 +00:00 · 634862b329
commit 634862b329
parent 180b0f65cc
1 changed files with 8 additions and 0 deletions
--- a/lib/libc/sys/kqueue.2
+++ b/lib/libc/sys/kqueue.2
@ -113,6 +113,14 @@ The
 argument
 determines the size of
 .Fa eventlist .
+When
+.Fa nevents
+is zero,
+.Fn kevent
+will return immediately even if there is a
+.Fa timeout
+specified unlike
+.Xr select  2 .
 If
 .Fa timeout
 is a non-NULL pointer, it specifies a maximum interval to wait