1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/* Copyright (C) 1998 Joshua Sled
This file is part of LibGTop 1.0.
Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
LibGTop is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
LibGTop is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/procmem.h>
#include <glibtop_suid.h>
#include <kvm.h>
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/resource.h>
#include <vm/vm_object.h>
#include <vm/vm_map.h>
#include <sys/vnode.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <sys/ucred.h>
#include <sys/user.h>
#include <sys/sysctl.h>
#include <vm/vm.h>
static const unsigned long _glibtop_sysdeps_proc_mem =
(1L << GLIBTOP_PROC_MEM_SIZE) +
(1L << GLIBTOP_PROC_MEM_VSIZE) +
(1L << GLIBTOP_PROC_MEM_RESIDENT) +
(1L << GLIBTOP_PROC_MEM_RSS) +
(1L << GLIBTOP_PROC_MEM_RSS_RLIM);
static const unsigned long _glibtop_sysdeps_proc_mem_share =
(1L << GLIBTOP_PROC_MEM_SHARE);
/* define pagetok in terms of pageshift */
#define ps_pgtok(a) (((a) * getpagesize()) / 1024)
/* Init function. */
void
_glibtop_init_proc_mem_p (glibtop *server)
{
server->sysdeps.proc_mem = _glibtop_sysdeps_proc_mem;
}
/* Provides detailed information about a process. */
void
glibtop_get_proc_mem_p (glibtop *server, glibtop_proc_mem *buf,
pid_t pid)
{
struct kinfo_proc *pinfo;
struct vm_map_entry entry, *first;
struct vmspace vmspace;
struct vm_object object;
int count;
memset (buf, 0, sizeof (glibtop_proc_mem));
if (server->sysdeps.proc_mem == 0)
return;
/* It does not work for the swapper task. */
if (pid == 0) return;
/* Get the process data */
pinfo = kvm_getprocs (server->machine->kd, KERN_PROC_PID, pid, &count);
if ((pinfo == NULL) || (count < 1)) {
glibtop_warn_io_r (server, "kvm_getprocs (%d)", pid);
return;
}
#define PROC_VMSPACE ki_vmspace
buf->rss_rlim = pinfo [0].ki_rssize;
buf->vsize = buf->size = (guint64)
pinfo [0].ki_size;
buf->resident = buf->rss = (guint64)
ps_pgtok (pinfo [0].ki_rssize) * 1024;
buf->flags |= _glibtop_sysdeps_proc_mem;
#if 0
/*
* It doesn't make any sense to count as shared each and every mmaped file
*/
/* Now we get the shared memory. */
if (kvm_read (server->machine->kd,
(unsigned long) pinfo [0].PROC_VMSPACE,
(char *) &vmspace, sizeof (vmspace)) != sizeof (vmspace)) {
glibtop_warn_io_r (server, "kvm_read (vmspace)");
return;
}
first = vmspace.vm_map.header.next;
if (kvm_read (server->machine->kd,
(unsigned long) vmspace.vm_map.header.next,
(char *) &entry, sizeof (entry)) != sizeof (entry)) {
glibtop_warn_io_r (server, "kvm_read (entry)");
return;
}
/* Walk through the `vm_map_entry' list ... */
/* I tested this a few times with `mmap'; as soon as you write
* to the mmap'ed area, the object type changes from OBJT_VNODE
* to OBJT_DEFAULT so if seems this really works. */
while (entry.next != first) {
if (kvm_read (server->machine->kd,
(unsigned long) entry.next,
(char *) &entry, sizeof (entry)) != sizeof (entry)) {
glibtop_warn_io_r (server, "kvm_read (entry)");
return;
}
if (entry.eflags & (MAP_ENTRY_IS_SUB_MAP))
continue;
if (!entry.object.vm_object)
continue;
/* We're only interested in `vm_object's */
if (kvm_read (server->machine->kd,
(unsigned long) entry.object.vm_object,
(char *) &object, sizeof (object)) != sizeof (object)) {
glibtop_warn_io_r (server, "kvm_read (object)");
return;
}
if (object.type != OBJT_VNODE)
continue;
buf->share += object.un_pager.vnp.vnp_size;
}
buf->flags |= _glibtop_sysdeps_proc_mem_share;
#endif
}
|
