File: cpu.c

package info (click to toggle)
libgtop2 2.40.0-2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bullseye, sid
  • size: 8,072 kB
  • sloc: ansic: 25,393; sh: 7,089; makefile: 418; perl: 268; xml: 179; sed: 16
file content (68 lines) | stat: -rw-r--r-- 1,936 bytes parent folder | download | duplicates (3)
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
/* 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., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/cpu.h>

static const unsigned long _glibtop_sysdeps_cpu =
(1L << GLIBTOP_CPU_TOTAL) + (1L << GLIBTOP_CPU_USER) +
(1L << GLIBTOP_CPU_NICE) + (1L << GLIBTOP_CPU_SYS) +
(1L << GLIBTOP_CPU_IDLE) + (1L << GLIBTOP_CPU_FREQUENCY);

/* Init function. */

void
_glibtop_init_cpu_s (glibtop *server)
{
	server->sysdeps.cpu = _glibtop_sysdeps_cpu;
}

/* Provides information about cpu usage. */

void
glibtop_get_cpu_s (glibtop *server, glibtop_cpu *buf)
{
	struct tbl_sysinfo sysinfo;
	int ret;

	glibtop_init_s (&server, GLIBTOP_SYSDEPS_CPU, 0);

	memset (buf, 0, sizeof (glibtop_cpu));

	ret = table (TBL_SYSINFO, 0, (char *) &sysinfo, 1,
		     sizeof (struct tbl_sysinfo));

	if (ret != 1) return;

	buf->flags = _glibtop_sysdeps_cpu;

	buf->user = sysinfo.si_user;
	buf->nice = sysinfo.si_nice;
	buf->sys  = sysinfo.si_sys;
	buf->idle = sysinfo.si_idle;

	buf->total = sysinfo.si_user + sysinfo.si_nice +
		sysinfo.si_sys + sysinfo.si_idle;

	buf->frequency = sysinfo.si_hz;
}