1 .\"
   2 .\" This file and its contents are supplied under the terms of the
   3 .\" Common Development and Distribution License ("CDDL"), version 1.0.
   4 .\" You may only use this file in accordance with the terms of version
   5 .\" 1.0 of the CDDL.
   6 .\"
   7 .\" A full copy of the text of the CDDL should have accompanied this
   8 .\" source.  A copy of the CDDL is also available via the Internet at
   9 .\" http://www.illumos.org/license/CDDL.
  10 .\"
  11 .\"
  12 .\" Copyright 2017, Richard Lowe.
  13 .\"
  14 .Dd Jan 18, 2017
  15 .Dt VMEM_CONTAINS 9F
  16 .Os
  17 .Sh NAME
  18 .Nm vmem_contains ,
  19 .Nd check for membership in a vmem arena
  20 .Sh SYNOPSIS
  21 .In sys/vmem.h
  22 .Ft int
  23 .Fo vmem_contains
  24 .Fa "vmem_t *vmp"
  25 .Fa "void *vaddr"
  26 .Fa "size_t *size"
  27 .Fc
  28 .Sh INTERFACE LEVEL
  29 illumos DDI specific
  30 .Sh PARAMETERS
  31 .Bl -tag -width Ds
  32 .It Fa vmp
  33 The vmem arena
  34 .It Fa vaddr
  35 address of the segment to query.
  36 .It Fa size
  37 size of the segment to query
  38 .El
  39 .Sh DESCRIPTION
  40 The
  41 .Fn vmem_contains
  42 function checks whether a segment of
  43 .Fa size
  44 bytes at
  45 .Fa vaddr
  46 exists within the vmem arena
  47 .Fa vmp .
  48 .Sh CONTEXT
  49 This function may be called from user or kernel context.
  50 .Sh RETURN VALUES
  51 .Fn vmem_contains
  52 returns non\-0 if the segment exists, and 0 otherwise.
  53 .Sh SEE ALSO
  54 .Xr vmem 9 ,
  55 .Xr vmem_add 9F ,
  56 .Xr vmem_alloc 9F ,
  57 .Xr vmem_create 9F