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Clarify what happens if fd is set to -1

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Submitted by:	Alfred Perlstein <bright@rush.net>
This commit is contained in:
billf 1999-06-29 16:32:22 +00:00
parent 893e0d6d36
commit a9d802a64d
1 changed files with 4 additions and 2 deletions
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6
lib/libc/sys/poll.2
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@ -1,5 +1,5 @@
.\" $NetBSD: poll.2,v 1.3 1996/09/07 21:53:08 mycroft Exp $ .\" $NetBSD: poll.2,v 1.3 1996/09/07 21:53:08 mycroft Exp $
.\" $Id: poll.2,v 1.1 1997/09/14 05:44:35 peter Exp $ .\" $Id: poll.2,v 1.2 1998/06/04 21:05:45 steve Exp $
.\" .\"
.\" Copyright (c) 1996 Charles M. Hannum. All rights reserved. .\" Copyright (c) 1996 Charles M. Hannum. All rights reserved.
.\" .\"
@ -65,7 +65,9 @@ The fields of
are as follows: are as follows:
.Bl -tag -width XXXrevents .Bl -tag -width XXXrevents
.It fd .It fd
File descriptor to poll. File descriptor to poll. If fd is equal to -1 then
.Fa revents
is cleared (set to zero), and that pollfd is not checked.
.It events .It events
Events to poll for. (See below.) Events to poll for. (See below.)
.It revents .It revents