2001-09-16 06:57:03 +04:00
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.\" $NetBSD: getpagesize.3,v 1.9 2001/09/16 02:57:03 wiz Exp $
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1995-02-27 07:12:15 +03:00
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.\"
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1994-05-07 06:52:59 +04:00
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.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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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 University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)getpagesize.3 8.1 (Berkeley) 6/4/93
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.\"
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.Dd June 4, 1993
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.Dt GETPAGESIZE 3
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1999-03-22 22:44:33 +03:00
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.Os
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1994-05-07 06:52:59 +04:00
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.Sh NAME
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.Nm getpagesize
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.Nd get system page size
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1998-02-05 21:45:17 +03:00
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.Sh LIBRARY
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.Lb libc
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1994-05-07 06:52:59 +04:00
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.Sh SYNOPSIS
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.Fd #include <unistd.h>
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.Ft int
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.Fn getpagesize void
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.Sh DESCRIPTION
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1998-05-25 00:26:02 +04:00
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.Bf -symbolic
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This interface is obsoleted by
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.Xr sysconf 3 .
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2001-09-16 06:30:23 +04:00
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.Ef
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.Pp
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1998-08-29 12:32:32 +04:00
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.Fn getpagesize
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1994-05-07 06:52:59 +04:00
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returns the number of bytes in a page.
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1998-04-29 00:11:33 +04:00
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Page granularity is the granularity of many of the memory management calls.
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1994-05-07 06:52:59 +04:00
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.Pp
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2001-09-16 06:30:23 +04:00
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The page size is a
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1998-04-29 00:11:33 +04:00
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.Em system
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1994-05-07 06:52:59 +04:00
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page size and may not be the same as the underlying
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hardware page size.
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.Sh SEE ALSO
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2001-09-16 06:57:03 +04:00
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.Xr pagesize 1 ,
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1994-05-07 06:52:59 +04:00
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.Xr sbrk 2 ,
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2001-09-16 06:57:03 +04:00
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.Xr sysconf 3
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1994-05-07 06:52:59 +04:00
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.Sh HISTORY
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The
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.Nm
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function call appeared in
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.Bx 4.2 .
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