Imported Upstream version 1.1.2

[psensor-pkg-ubuntu.git] / src / lib / pgtop2.c

diff --git a/src/lib/pgtop2.c b/src/lib/pgtop2.c
new file mode 100644 (file)
index 0000000..a25c705
--- /dev/null
+++ b/src/lib/pgtop2.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2010-2014 jeanfi@gmail.com
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#include <locale.h>
+#include <libintl.h>
+#define _(str) gettext(str)
+
+#include <string.h>
+
+#include <glibtop/cpu.h>
+#include <glibtop/mem.h>
+
+#include <pgtop2.h>
+
+static float last_used;
+static float last_total;
+
+static const char *PROVIDER_NAME = "gtop2";
+
+struct psensor *create_cpu_usage_sensor(int measures_len)
+{
+       char *label, *id;
+       int type;
+       struct psensor *psensor;
+
+       id = g_strdup_printf("%s cpu usage", PROVIDER_NAME);
+       label = strdup(_("CPU usage"));
+       type = SENSOR_TYPE_GTOP | SENSOR_TYPE_CPU_USAGE;
+
+       psensor = psensor_create(id,
+                                label,
+                                strdup(_("CPU")),
+                                type,
+                                measures_len);
+
+       return psensor;
+}
+
+static struct psensor *create_mem_free_sensor(int measures_len)
+{
+       char *id;
+       int type;
+
+       id = g_strdup_printf("%s mem free", PROVIDER_NAME);
+       type = SENSOR_TYPE_GTOP | SENSOR_TYPE_MEMORY | SENSOR_TYPE_PERCENT;
+
+       return psensor_create(id,
+                             strdup(_("free memory")),
+                             strdup(_("memory")),
+                             type,
+                             measures_len);
+}
+
+static double get_usage()
+{
+       glibtop_cpu cpu;
+       unsigned long int used, dt;
+       double cpu_rate;
+
+       glibtop_get_cpu(&cpu);
+
+       used = cpu.user + cpu.nice + cpu.sys;
+
+       dt = cpu.total - last_total;
+
+       if (dt)
+               cpu_rate = 100.0 * (used - last_used) / dt;
+       else
+               cpu_rate = UNKNOWN_DBL_VALUE;
+
+       last_used = used;
+       last_total = cpu.total;
+
+       return cpu_rate;
+}
+
+static double get_mem_free()
+{
+       glibtop_mem mem;
+       double v;
+
+       glibtop_get_mem(&mem);
+       v = ((double)mem.free) * 100.0 / mem.total;
+
+       return v;
+}
+
+void gtop2_psensor_list_append(struct psensor ***sensors, int measures_len)
+{
+       psensor_list_append(sensors, create_cpu_usage_sensor(measures_len));
+       psensor_list_append(sensors, create_mem_free_sensor(measures_len));
+}
+
+void cpu_usage_sensor_update(struct psensor *s)
+{
+       double v;
+
+       v = get_usage();
+
+       if (v != UNKNOWN_DBL_VALUE)
+               psensor_set_current_value(s, v);
+}
+
+void mem_free_sensor_update(struct psensor *s)
+{
+       double v;
+
+       v = get_mem_free();
+
+       if (v != UNKNOWN_DBL_VALUE)
+               psensor_set_current_value(s, v);
+}
+
+void gtop2_psensor_list_update(struct psensor **sensors)
+{
+       struct psensor *s;
+
+       while (*sensors) {
+               s = *sensors;
+
+               if (!(s->type & SENSOR_TYPE_REMOTE)
+                   && s->type & SENSOR_TYPE_GTOP) {
+                       if (s->type & SENSOR_TYPE_CPU)
+                               cpu_usage_sensor_update(s);
+                       else if (s->type & SENSOR_TYPE_MEMORY)
+                               mem_free_sensor_update(s);
+               }
+
+               sensors++;
+       }
+}