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
|
/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/shm_limits.h>
#include <kvm.h>
#include <rctl.h>
#include <sys/shm.h>
static const struct nlist nlst[] = { {"glibtop_shm_limits"}, {NULL} };
#if GLIBTOP_SOLARIS_RELEASE >=51000
static const unsigned long _glibtop_sysdeps_shm_limits = 0;
#else
# if GLIBTOP_SOLARIS_RELEASE < 50900
static const unsigned long _glibtop_sysdeps_shm_limits =
(1L << GLIBTOP_IPC_SHMMAX) + (1L << GLIBTOP_IPC_SHMMIN);
# else
static const unsigned long _glibtop_sysdeps_shm_limits =
(1L << GLIBTOP_IPC_SHMMAX) + (1L << GLIBTOP_IPC_SHMMIN) +
(1L << GLIBTOP_IPC_SHMMNI) + (1L << GLIBTOP_IPC_SHMSEG);
# endif
#endif
/* Init function. */
void
_glibtop_init_shm_limits_p (glibtop *server)
{
#if GLIBTOP_SOLARIS_RELEASE < 51000
kvm_t * const kd = server->machine.kd;
if(kd && !kvm_nlist(kd, nlst))
server->sysdeps.shm_limits = _glibtop_sysdeps_shm_limits;
else
server->sysdeps.shm_limits = 0;
#endif
}
/* Provides information about sysv ipc limits. */
void
glibtop_get_shm_limits_p (glibtop *server, glibtop_shm_limits *buf)
{
#if GLIBTOP_SOLARIS_RELEASE < 51000
kvm_t * const kd = server->machine.kd;
glibtop_shm_limits sinfo;
memset (buf, 0, sizeof (glibtop_shm_limits));
if(!(server->sysdeps.shm_limits))
return;
if(kvm_read(kd, nlst[0].n_value, (void *)&sinfo,
sizeof(glibtop_shm_limits)) != sizeof(glibtop_shm_limits))
return;
buf->shmmax = sinfo.shmmax;
buf->shmmni = sinfo.shmmni;
#if GLIBTOP_SOLARIS_RELEASE < 50900
buf->shmmin = sinfo.shmmin;
buf->shmseg = sinfo.shmseg;
# endif
#endif
#if GLIBTOP_SOLARIS_RELEASE >= 51000
rctlblk_t *rblk;
if ((rblk = malloc(rctlblk_size())) == NULL)
return;
if (getrctl("project.max-shm-memory", NULL, rblk, RCTL_FIRST) == -1)
return;
else
buf->shmmax = rctlblk_get_value(rblk);
if (getrctl("project.max-shm-ids", NULL, rblk, RCTL_FIRST) == -1)
return;
else
buf->shmmni = rctlblk_get_value(rblk);
#endif
buf->flags = _glibtop_sysdeps_shm_limits;
}
|
