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
|
/*
* Copyright (C) 2005-2009 Alex Murray <murray.alex@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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#endif /* HAVE_DLFCN_H */
#include "sensors-applet-plugins.h"
#include "sensors-applet-sensor.h"
#define SENSORS_APPLET_USER_PLUGIN_DIR ".mate2/sensors-applet/plugins"
static void load_all_plugins(SensorsApplet *sensors_applet,
const gchar *path)
{
if (g_file_test(path,
G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
GDir *dir;
if ((dir = g_dir_open(path, 0, NULL)) != NULL) {
const gchar *file;
while ((file = g_dir_read_name(dir)) != NULL) {
// try and open plugin
gchar *plugin_file;
void *handle;
SensorsAppletPluginName name_fn;
SensorsAppletPluginInit init_fn;
SensorsAppletPluginGetSensorValue get_value_fn;
plugin_file = g_strdup_printf("%s/%s", path, file);
g_debug("found %s in plugin directory", plugin_file);
if ((handle = dlopen(plugin_file, RTLD_NOW)) != NULL) {
if ((name_fn = dlsym(handle, "sensors_applet_plugin_name")) != NULL &&
(init_fn = dlsym(handle, "sensors_applet_plugin_init")) != NULL &&
(get_value_fn = dlsym(handle, "sensors_applet_plugin_get_sensor_value")) != NULL) {
GList *sensors;
g_debug("calling init function for plugin file %s", plugin_file);
if ((sensors = init_fn()) != NULL) {
GList *sensor;
g_debug("registering plugin %s", name_fn());
g_hash_table_insert(sensors_applet->plugins,
g_strdup(name_fn()),
get_value_fn);
for (sensor = g_list_first(sensors);
sensor != NULL;
sensor = g_list_next(sensor)) {
SensorsAppletSensorInfo *sensor_info = (SensorsAppletSensorInfo *)sensor->data;
sensors_applet_add_sensor(sensors_applet,
sensor_info->path,
sensor_info->id,
sensor_info->label,
name_fn(),
sensor_info->type,
sensor_info->enable,
sensor_info->low_value,
sensor_info->high_value,
FALSE, // ALARM OFF
"", // no alarm commands
"", // no alarm commands
0, // alarm_timeout
sensor_info->multiplier,
sensor_info->offset,
sensor_info->icon,
sensor_info->graph_color);
g_free(sensor_info->path);
g_free(sensor_info->id);
g_free(sensor_info->label);
g_free(sensor_info->graph_color);
g_free(sensor_info);
}
g_list_free(sensors);
} else {
g_debug("plugin could not find any sensors");
if (g_hash_table_lookup(sensors_applet->required_plugins,
name_fn()))
{
g_debug("plugin is required - registering even though no sensors detected");
g_debug("registering plugin %s", name_fn());
g_hash_table_insert(sensors_applet->plugins,
g_strdup(name_fn()),
get_value_fn);
} else {
g_debug("unloading plugin");
}
}
} else {
g_debug("plugin file %s does not contain the required interface", plugin_file);
if (dlclose(handle) != 0) {
g_debug("error closing plugin file %s", plugin_file);
}
}
} else {
g_debug("Could not dlopen: %s: %s", plugin_file, dlerror());
}
g_free(plugin_file);
}
g_dir_close(dir);
} else {
g_debug("error opening plugin dir %s", path);
}
} else {
g_debug("path %s is not a valid directory", path);
}
}
void sensors_applet_plugins_load_all(SensorsApplet *sensors_applet)
{
const gchar *home;
if ((home = g_get_home_dir()) != NULL) {
gchar *path;
path = g_build_filename(home,
SENSORS_APPLET_USER_PLUGIN_DIR,
NULL);
load_all_plugins(sensors_applet, path);
g_free(path);
} else {
g_warning("could not get home dir of user");
}
load_all_plugins(sensors_applet, SENSORS_APPLET_PLUGIN_DIR);
}
SensorsAppletPluginGetSensorValue sensors_applet_plugins_get_sensor_value_func(SensorsApplet *sensors_applet,
const gchar *plugin)
{
return g_hash_table_lookup(sensors_applet->plugins,
plugin);
}
|
