182ed18acSAlfred Perlstein.\" 282ed18acSAlfred Perlstein.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved. 382ed18acSAlfred Perlstein.\" 482ed18acSAlfred Perlstein.\" Redistribution and use in source and binary forms, with or without 582ed18acSAlfred Perlstein.\" modification, are permitted provided that the following conditions 682ed18acSAlfred Perlstein.\" are met: 782ed18acSAlfred Perlstein.\" 1. Redistributions of source code must retain the above copyright 882ed18acSAlfred Perlstein.\" notice(s), this list of conditions and the following disclaimer as 982ed18acSAlfred Perlstein.\" the first lines of this file unmodified other than the possible 1082ed18acSAlfred Perlstein.\" addition of one or more copyright notices. 1182ed18acSAlfred Perlstein.\" 2. Redistributions in binary form must reproduce the above copyright 1282ed18acSAlfred Perlstein.\" notice(s), this list of conditions and the following disclaimer in the 1382ed18acSAlfred Perlstein.\" documentation and/or other materials provided with the distribution. 1482ed18acSAlfred Perlstein.\" 1582ed18acSAlfred Perlstein.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY 1682ed18acSAlfred Perlstein.\" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 1782ed18acSAlfred Perlstein.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 1882ed18acSAlfred Perlstein.\" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY 1982ed18acSAlfred Perlstein.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2082ed18acSAlfred Perlstein.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2182ed18acSAlfred Perlstein.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 2282ed18acSAlfred Perlstein.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2382ed18acSAlfred Perlstein.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2482ed18acSAlfred Perlstein.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 2582ed18acSAlfred Perlstein.\" DAMAGE. 2682ed18acSAlfred Perlstein.\" 2782ed18acSAlfred Perlstein.\" $FreeBSD$ 2882ed18acSAlfred Perlstein.\" 2982ed18acSAlfred Perlstein.Dd July 9, 2001 3082ed18acSAlfred Perlstein.Dt BUF_LOCK 9 3182ed18acSAlfred Perlstein.Os 3282ed18acSAlfred Perlstein.Sh NAME 3382ed18acSAlfred Perlstein.Nm BUF_LOCK 3482ed18acSAlfred Perlstein.Nd "Locks a buffer" 3582ed18acSAlfred Perlstein.Sh SYNOPSIS 360ef36920SAlfred Perlstein.Fd #include <sys/param.h> 3782ed18acSAlfred Perlstein.Fd #include <sys/buf.h> 3882ed18acSAlfred Perlstein.Ft int 390ef36920SAlfred Perlstein.Fn BUF_LOCK "struct buf *bp" "int locktype" 4082ed18acSAlfred Perlstein.Sh DESCRIPTION 4182ed18acSAlfred PerlsteinThe 4282ed18acSAlfred Perlstein.Nm 4382ed18acSAlfred Perlsteinfunction locks the given buffer. If the lock is already held this 4482ed18acSAlfred Perlsteincall will block until it can aquire the lock unless LK_NOWAIT is 4582ed18acSAlfred Perlsteinset. 4682ed18acSAlfred Perlstein.Pp 4782ed18acSAlfred PerlsteinIts arguments are: 4882ed18acSAlfred Perlstein.Bl -tag -width locktype 4982ed18acSAlfred Perlstein.It Ar bp 5082ed18acSAlfred PerlsteinThe buffer to lock. 5182ed18acSAlfred Perlstein.It Ar locktype 5282ed18acSAlfred PerlsteinFlags controlling the type of lock. See lockmgr(9) for details. 5382ed18acSAlfred Perlstein.El 5482ed18acSAlfred Perlstein.Sh RETURN VALUES 5582ed18acSAlfred PerlsteinA value of 0 is returned upon success. See lockmgr(9) for 5682ed18acSAlfred Perlsteininformation on non-zero return values. 5782ed18acSAlfred Perlstein.Sh SEE ALSO 5882ed18acSAlfred Perlstein.Xr buf 9 5982ed18acSAlfred Perlstein.Xr lockmgr 9 6082ed18acSAlfred Perlstein.Xr BUF_UNLOCK 9 6182ed18acSAlfred Perlstein.Xr BUF_TIMELOCK 9 6282ed18acSAlfred Perlstein.Sh AUTHORS 6382ed18acSAlfred PerlsteinThis man page was written by Chad David. 64