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Diffstat (limited to 'lib/libutil/kinfo_getvmobject.3')
-rw-r--r-- | lib/libutil/kinfo_getvmobject.3 | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/lib/libutil/kinfo_getvmobject.3 b/lib/libutil/kinfo_getvmobject.3 new file mode 100644 index 0000000..dc0edd2 --- /dev/null +++ b/lib/libutil/kinfo_getvmobject.3 @@ -0,0 +1,74 @@ +.\" +.\" Copyright (c) 2015 John Baldwin <jhb@FreeBSD.org> +.\" 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. +.\" +.\" $FreeBSD$ +.\" +.Dd May 27, 2015 +.Dt KINFO_GETVMOBJECT 3 +.Os +.Sh NAME +.Nm kinfo_getvmobject +.Nd function for getting system-wide memory information +.Sh LIBRARY +.Lb libutil +.Sh SYNOPSIS +.In sys/types.h +.In sys/user.h +.In libutil.h +.Ft struct kinfo_vmobject * +.Fn kinfo_getvmobject "int *cntp" +.Sh DESCRIPTION +This function is used to obtain information about the objects using memory +in the system. +.Pp +The +.Ar cntp +argument allows the caller to know how many records are returned. +.Pp +This function is a wrapper around the +.Dq vm.objects +.Xr sysctl 3 +MIB. +While the kernel returns a packed structure, this function expands the +data into a fixed record format. +.Sh RETURN VALUES +On success the +.Fn kinfo_getvmobject +function returns a pointer to an array of +.Vt struct kinfo_vmobject +structures as defined by +.In sys/user.h . +The array is allocated by an internal call to +.Xr malloc 3 +and must be freed by the caller with a call to +.Xr free 3 . +On failure the +.Fn kinfo_getvmobject +function returns +.Dv NULL . +.Sh SEE ALSO +.Xr free 3 , +.Xr kinfo_getvmmap 3 , +.Xr malloc 3 |