2 * Copyright (C) 2010-2014 jeanfi@gmail.com
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 #define _(str) gettext(str)
25 #include <glibtop/cpu.h>
29 static glibtop_cpu *cpu;
30 static float last_used;
31 static float last_total;
33 struct psensor *create_cpu_usage_sensor(int measures_len)
38 struct psensor *psensor;
40 id = strdup("cpu usage");
41 label = strdup("cpu usage");
42 type = SENSOR_TYPE_CPU_USAGE;
44 psensor = psensor_create(id,
54 cpu_psensor_list_add(struct psensor **sensors, int measures_len)
58 s = create_cpu_usage_sensor(measures_len);
60 return psensor_list_add(sensors, s);
63 static double get_usage()
65 unsigned long int used = 0;
67 double cpu_rate = UNKNOWN_DBL_VALUE;
70 cpu = malloc(sizeof(glibtop_cpu));
74 used = cpu->user + cpu->nice + cpu->sys;
76 dt = cpu->total - last_total;
79 cpu_rate = 100 * (used - last_used) / dt;
82 last_total = cpu->total;
87 void cpu_usage_sensor_update(struct psensor *s)
89 psensor_set_current_value(s, get_usage());
92 void cpu_psensor_list_update(struct psensor **sensors)
94 struct psensor **ss, *s;
100 if (!(s->type & SENSOR_TYPE_REMOTE)
101 && s->type == SENSOR_TYPE_CPU_USAGE)
102 cpu_usage_sensor_update(s);