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authorTheo de Raadt <deraadt@cvs.openbsd.org>2003-08-19 22:16:40 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2003-08-19 22:16:40 +0000
commit97545fe4089995279b1270673dd8950368a985e5 (patch)
treef74952eaf9e150481cd140a9759a9264c8007d82
parentb66500e9fdff60a92e7e8fc10421c39c5da7f4a6 (diff)
document what happens when pollfd.fd is -1
-rw-r--r--lib/libc/sys/poll.211
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/libc/sys/poll.2 b/lib/libc/sys/poll.2
index 71a6ee661f9..268e1e7e0ce 100644
--- a/lib/libc/sys/poll.2
+++ b/lib/libc/sys/poll.2
@@ -1,4 +1,4 @@
-.\" $OpenBSD: poll.2,v 1.14 2003/04/25 22:14:19 tedu Exp $
+.\" $OpenBSD: poll.2,v 1.15 2003/08/19 22:16:39 deraadt Exp $
.\"
.\" Copyright (c) 1994 Jason R. Thorpe
.\" All rights reserved.
@@ -60,6 +60,15 @@ struct pollfd {
The
.Pa fd
member is an open file descriptor.
+If
+.Pa fd
+is -1,
+the
+.Nm pollfd
+structure is considered unused, and
+.Pa revents
+will be cleared.
+.Pp
The
.Pa events
and