1*2fe8fb19SBen Gras.\" $NetBSD: valloc.3,v 1.14 2010/05/08 11:22:58 wiz Exp $ 2*2fe8fb19SBen Gras.\" 3*2fe8fb19SBen Gras.\" Copyright (c) 1980, 1991, 1993 4*2fe8fb19SBen Gras.\" The Regents of the University of California. All rights reserved. 5*2fe8fb19SBen Gras.\" 6*2fe8fb19SBen Gras.\" Redistribution and use in source and binary forms, with or without 7*2fe8fb19SBen Gras.\" modification, are permitted provided that the following conditions 8*2fe8fb19SBen Gras.\" are met: 9*2fe8fb19SBen Gras.\" 1. Redistributions of source code must retain the above copyright 10*2fe8fb19SBen Gras.\" notice, this list of conditions and the following disclaimer. 11*2fe8fb19SBen Gras.\" 2. Redistributions in binary form must reproduce the above copyright 12*2fe8fb19SBen Gras.\" notice, this list of conditions and the following disclaimer in the 13*2fe8fb19SBen Gras.\" documentation and/or other materials provided with the distribution. 14*2fe8fb19SBen Gras.\" 3. Neither the name of the University nor the names of its contributors 15*2fe8fb19SBen Gras.\" may be used to endorse or promote products derived from this software 16*2fe8fb19SBen Gras.\" without specific prior written permission. 17*2fe8fb19SBen Gras.\" 18*2fe8fb19SBen Gras.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19*2fe8fb19SBen Gras.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20*2fe8fb19SBen Gras.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21*2fe8fb19SBen Gras.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22*2fe8fb19SBen Gras.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23*2fe8fb19SBen Gras.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24*2fe8fb19SBen Gras.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25*2fe8fb19SBen Gras.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26*2fe8fb19SBen Gras.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27*2fe8fb19SBen Gras.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28*2fe8fb19SBen Gras.\" SUCH DAMAGE. 29*2fe8fb19SBen Gras.\" 30*2fe8fb19SBen Gras.\" @(#)valloc.3 8.1 (Berkeley) 6/4/93 31*2fe8fb19SBen Gras.\" 32*2fe8fb19SBen Gras.Dd May 6, 2010 33*2fe8fb19SBen Gras.Dt VALLOC 3 34*2fe8fb19SBen Gras.Os 35*2fe8fb19SBen Gras.Sh NAME 36*2fe8fb19SBen Gras.Nm valloc 37*2fe8fb19SBen Gras.Nd aligned memory allocation function 38*2fe8fb19SBen Gras.Sh LIBRARY 39*2fe8fb19SBen Gras.Lb libc 40*2fe8fb19SBen Gras.Sh SYNOPSIS 41*2fe8fb19SBen Gras.In stdlib.h 42*2fe8fb19SBen Gras.Ft void * 43*2fe8fb19SBen Gras.Fn valloc "size_t size" 44*2fe8fb19SBen Gras.Sh DESCRIPTION 45*2fe8fb19SBen Gras.Bf -symbolic 46*2fe8fb19SBen GrasThe 47*2fe8fb19SBen Gras.Fn valloc 48*2fe8fb19SBen Grasfunction is obsoleted by the current version of 49*2fe8fb19SBen Gras.Xr malloc 3 , 50*2fe8fb19SBen Graswhich aligns page-sized and larger allocations. 51*2fe8fb19SBen Gras.Ef 52*2fe8fb19SBen Gras.Pp 53*2fe8fb19SBen GrasThe 54*2fe8fb19SBen Gras.Fn valloc 55*2fe8fb19SBen Grasfunction 56*2fe8fb19SBen Grasallocates 57*2fe8fb19SBen Gras.Fa size 58*2fe8fb19SBen Grasbytes aligned on a page boundary. 59*2fe8fb19SBen GrasIt is implemented by calling 60*2fe8fb19SBen Gras.Xr malloc 3 61*2fe8fb19SBen Graswith a slightly larger request, saving the true beginning of the block 62*2fe8fb19SBen Grasallocated, and returning a properly aligned pointer. 63*2fe8fb19SBen Gras.Sh RETURN VALUES 64*2fe8fb19SBen GrasThe 65*2fe8fb19SBen Gras.Fn valloc 66*2fe8fb19SBen Grasfunction returns 67*2fe8fb19SBen Grasa pointer to the allocated space if successful; otherwise 68*2fe8fb19SBen Grasa null pointer is returned 69*2fe8fb19SBen Gras.Sh HISTORY 70*2fe8fb19SBen GrasThe 71*2fe8fb19SBen Gras.Fn valloc 72*2fe8fb19SBen Grasfunction appeared in 73*2fe8fb19SBen Gras.Bx 3.0 . 74*2fe8fb19SBen Gras.Sh BUGS 75*2fe8fb19SBen GrasA 76*2fe8fb19SBen Gras.Fn vfree 77*2fe8fb19SBen Grasfunction has not been implemented. 78