Copyright (c) 2009 Alan L. Cox <alc@cs.rice.edu>
All rights reserved.
Redistribution and use in source and binary forms, with or without
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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SUCH DAMAGE.
$FreeBSD: releng/10.2/lib/libc/gen/getpagesizes.3 233648 2012-03-29 05:02:12Z eadler $
.Dd September 21, 2009 .Dt GETPAGESIZES 3 .Os .Sh NAME .Nm getpagesizes .Nd "get system page sizes" .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/mman.h .Ft int .Fn getpagesizes "size_t pagesize[]" "int nelem" .Sh DESCRIPTION The .Fn getpagesizes function retrieves page size information from the system. When it is called with .Fa pagesize specified as .Dv NULL and .Fa nelem specified as 0, it returns the number of distinct page sizes that are supported by the system. Otherwise, it assigns up to .Fa nelem of the system-supported page sizes to consecutive elements of the array referenced by .Fa pagesize . These page sizes are expressed in bytes. In this case, .Fn getpagesizes returns the number of such page sizes that it assigned to the array. .Sh RETURN VALUES If successful, the .Fn getpagesizes function returns either the number of page sizes that are supported by the system or the number of supported page sizes that it assigned to the array referenced by .Fa pagesize . Otherwise, it returns the value\~-1 and sets .Va errno to indicate the error. .Sh ERRORS The .Fn getpagesizes function will succeed unless: l -tag -width Er t Bq Er EINVAL The .Fa pagesize argument is .Dv NULL and the .Fa nelem argument is non-zero. t Bq Er EINVAL The .Fa nelem argument is less than zero. .El .Sh SEE ALSO .Xr getpagesize 3 .Sh HISTORY The .Fn getpagesizes function first appeared in Solaris 9. This manual page was written in conjunction with a new but compatible implementation that was first released in .Fx 7.3 . .Sh AUTHORS This manual page was written by .An Alan L. Cox Aq alc@cs.rice.edu .
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
$FreeBSD: releng/10.2/lib/libc/gen/getpagesizes.3 233648 2012-03-29 05:02:12Z eadler $
.Dd September 21, 2009 .Dt GETPAGESIZES 3 .Os .Sh NAME .Nm getpagesizes .Nd "get system page sizes" .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/mman.h .Ft int .Fn getpagesizes "size_t pagesize[]" "int nelem" .Sh DESCRIPTION The .Fn getpagesizes function retrieves page size information from the system. When it is called with .Fa pagesize specified as .Dv NULL and .Fa nelem specified as 0, it returns the number of distinct page sizes that are supported by the system. Otherwise, it assigns up to .Fa nelem of the system-supported page sizes to consecutive elements of the array referenced by .Fa pagesize . These page sizes are expressed in bytes. In this case, .Fn getpagesizes returns the number of such page sizes that it assigned to the array. .Sh RETURN VALUES If successful, the .Fn getpagesizes function returns either the number of page sizes that are supported by the system or the number of supported page sizes that it assigned to the array referenced by .Fa pagesize . Otherwise, it returns the value\~-1 and sets .Va errno to indicate the error. .Sh ERRORS The .Fn getpagesizes function will succeed unless: l -tag -width Er t Bq Er EINVAL The .Fa pagesize argument is .Dv NULL and the .Fa nelem argument is non-zero. t Bq Er EINVAL The .Fa nelem argument is less than zero. .El .Sh SEE ALSO .Xr getpagesize 3 .Sh HISTORY The .Fn getpagesizes function first appeared in Solaris 9. This manual page was written in conjunction with a new but compatible implementation that was first released in .Fx 7.3 . .Sh AUTHORS This manual page was written by .An Alan L. Cox Aq alc@cs.rice.edu .