2001-09-16 06:13:26 +04:00
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.\" $NetBSD: lfs_segwait.2,v 1.3 2001/09/16 02:13:29 wiz Exp $
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2000-05-25 01:54:59 +04:00
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.\"
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.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Konrad Schroder.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd May 23, 2000
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.Dt LFS_SEGWAIT 2
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.Os
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.Sh NAME
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.Nm lfs_segwait
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.Nd wait until a segment is written
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.Fd #include <sys/types.h>
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.Ft int
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.Fn lfs_segwait "fsid_t *fsidp" "struct timeval *tv"
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.Sh DESCRIPTION
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.Fn lfs_segwait
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blocks until a new segment is acquired for writing by the filesystem
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specified by
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.Fa *fsidp
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or if
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.Fa *fsidp
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is -1, until a segment is acquired for writing by any LFS filesystem.
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.Pp
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If
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.Fa timeout
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2001-09-16 05:38:59 +04:00
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is non-zero,
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.Fn lfs_segwait
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will return after
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.Fa timeout
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milliseconds regardless of whether a new segment has been designated for
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writing or not.
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.Sh RETURN VALUES
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.Fn lfs_segwait
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returns 0 if a new segment was acquired; 1 if it timed out; or -1 on error.
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.Sh ERRORS
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An error return from
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.Fn lfs_segwait
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indicates:
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.Bl -tag -width Er
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.It Bq Er EFAULT
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.Fa fsidp
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points outside the process's allocated address space.
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.It Bq Er EINTR
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A signal was delivered before the time limit expired and
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before a new segment was designated for writing.
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.It Bq Er EINVAL
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The specified time limit is negative.
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.El
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.Sh SEE ALSO
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.Xr lfs_bmapv 2 ,
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.Xr lfs_markv 2 ,
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2001-09-16 06:13:26 +04:00
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.Xr lfs_segclean 2 ,
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.Xr lfs_cleanerd 8
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2000-05-25 01:54:59 +04:00
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.Sh HISTORY
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The
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.Fn lfs_segwait
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function call appeared in
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.Bx 4.4 .
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