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77 lines
2.4 KiB
Groff
77 lines
2.4 KiB
Groff
.\"
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.\" Copyright (c) 2015 John Baldwin <jhb@FreeBSD.org>
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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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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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.Dd May 20, 2020
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.Dt KINFO_GETVMOBJECT 3
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.Os
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.Sh NAME
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.Nm kinfo_getvmobject
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.Nd function for getting system-wide memory information
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.Sh LIBRARY
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.Lb libutil
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.Sh SYNOPSIS
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.In sys/types.h
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.In sys/user.h
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.In libutil.h
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.Ft struct kinfo_vmobject *
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.Fn kinfo_getvmobject "int *cntp"
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.Sh DESCRIPTION
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This function is used to obtain information about the objects using memory
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in the system.
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.Pp
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The
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.Ar cntp
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argument allows the caller to know how many records are returned.
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.Pp
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This function is a wrapper around the
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.Dq vm.objects
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.Xr sysctl 3
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MIB.
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While the kernel returns a packed structure, this function expands the
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data into a fixed record format.
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.Sh RETURN VALUES
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On success the
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.Fn kinfo_getvmobject
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function returns a pointer to an array of
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.Vt struct kinfo_vmobject
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structures as defined by
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.In sys/user.h .
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The array is allocated by an internal call to
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.Xr malloc 3
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and must be freed by the caller with a call to
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.Xr free 3 .
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On failure the
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.Fn kinfo_getvmobject
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function returns
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.Dv NULL .
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.Sh SEE ALSO
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.Xr free 3 ,
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.Xr kinfo_getvmmap 3 ,
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.Xr malloc 3
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.Sh HISTORY
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The
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.Fn kinfo_getvmobject
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function first appeared in
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.Fx 10.2 .
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