2 * Copyright (c) 2013 Hudson River Trading LLC
3 * Written by: John H. Baldwin <jhb@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/types.h>
29 #include <sys/sysctl.h>
36 static struct kinfo_vmobject *
37 kinfo_getvmobject_impl(int *cntp, const char *vmobjsysctl)
40 struct kinfo_vmobject *kvo, *list, *kp;
45 for (i = 0; i < 3; i++) {
46 if (sysctlbyname(vmobjsysctl, NULL, &len, NULL, 0) < 0) {
50 buf = reallocf(buf, len);
53 if (sysctlbyname(vmobjsysctl, buf, &len, NULL, 0) == 0)
55 if (errno != ENOMEM) {
69 kvo = (struct kinfo_vmobject *)(uintptr_t)bp;
70 bp += kvo->kvo_structsize;
74 list = calloc(cnt, sizeof(*list));
84 kvo = (struct kinfo_vmobject *)(uintptr_t)bp;
85 memcpy(kp, kvo, kvo->kvo_structsize);
86 bp += kvo->kvo_structsize;
87 kp->kvo_structsize = sizeof(*kp);
95 struct kinfo_vmobject *
96 kinfo_getvmobject(int *cntp)
98 return (kinfo_getvmobject_impl(cntp, "vm.objects"));
101 struct kinfo_vmobject *
102 kinfo_getswapvmobject(int *cntp)
104 return (kinfo_getvmobject_impl(cntp, "vm.swap_objects"));