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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/*
*
* Connection Manager
*
* Copyright (C) 2007-2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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
#include <errno.h>
#include <gdbus.h>
#include "connman.h"
static DBusConnection *connection;
static GHashTable *counter_table;
static GHashTable *owner_mapping;
struct connman_counter {
char *owner;
char *path;
unsigned int interval;
guint watch;
};
static void remove_counter(gpointer user_data)
{
struct connman_counter *counter = user_data;
DBG("owner %s path %s", counter->owner, counter->path);
__connman_rtnl_update_interval_remove(counter->interval);
__connman_service_counter_unregister(counter->path);
g_free(counter->owner);
g_free(counter->path);
g_free(counter);
}
static void owner_disconnect(DBusConnection *conn, void *user_data)
{
struct connman_counter *counter = user_data;
DBG("owner %s path %s", counter->owner, counter->path);
g_hash_table_remove(owner_mapping, counter->owner);
g_hash_table_remove(counter_table, counter->path);
}
int __connman_counter_register(const char *owner, const char *path,
unsigned int interval)
{
struct connman_counter *counter;
int err;
DBG("owner %s path %s interval %u", owner, path, interval);
counter = g_hash_table_lookup(counter_table, path);
if (counter)
return -EEXIST;
counter = g_try_new0(struct connman_counter, 1);
if (!counter)
return -ENOMEM;
counter->owner = g_strdup(owner);
counter->path = g_strdup(path);
err = __connman_service_counter_register(counter->path);
if (err < 0) {
g_free(counter->owner);
g_free(counter->path);
g_free(counter);
return err;
}
g_hash_table_replace(counter_table, counter->path, counter);
g_hash_table_replace(owner_mapping, counter->owner, counter);
counter->interval = interval;
__connman_rtnl_update_interval_add(counter->interval);
counter->watch = g_dbus_add_disconnect_watch(connection, owner,
owner_disconnect, counter, NULL);
return 0;
}
int __connman_counter_unregister(const char *owner, const char *path)
{
struct connman_counter *counter;
DBG("owner %s path %s", owner, path);
counter = g_hash_table_lookup(counter_table, path);
if (!counter)
return -ESRCH;
if (g_strcmp0(owner, counter->owner) != 0)
return -EACCES;
if (counter->watch > 0)
g_dbus_remove_watch(connection, counter->watch);
g_hash_table_remove(owner_mapping, counter->owner);
g_hash_table_remove(counter_table, counter->path);
return 0;
}
void __connman_counter_send_usage(const char *path,
DBusMessage *message)
{
struct connman_counter *counter;
counter = g_hash_table_lookup(counter_table, path);
if (!counter) {
if (message)
dbus_message_unref(message);
return;
}
dbus_message_set_destination(message, counter->owner);
dbus_message_set_path(message, counter->path);
dbus_message_set_interface(message, CONNMAN_COUNTER_INTERFACE);
dbus_message_set_member(message, "Usage");
dbus_message_set_no_reply(message, TRUE);
g_dbus_send_message(connection, message);
}
static void release_counter(gpointer key, gpointer value, gpointer user_data)
{
struct connman_counter *counter = value;
DBusMessage *message;
DBG("owner %s path %s", counter->owner, counter->path);
if (counter->watch > 0)
g_dbus_remove_watch(connection, counter->watch);
message = dbus_message_new_method_call(counter->owner, counter->path,
CONNMAN_COUNTER_INTERFACE, "Release");
if (!message)
return;
dbus_message_set_no_reply(message, TRUE);
g_dbus_send_message(connection, message);
}
int __connman_counter_init(void)
{
DBG("");
connection = connman_dbus_get_connection();
if (!connection)
return -1;
counter_table = g_hash_table_new_full(g_str_hash, g_str_equal,
NULL, remove_counter);
owner_mapping = g_hash_table_new_full(g_str_hash, g_str_equal,
NULL, NULL);
return 0;
}
void __connman_counter_cleanup(void)
{
DBG("");
if (!connection)
return;
g_hash_table_foreach(counter_table, release_counter, NULL);
g_hash_table_destroy(owner_mapping);
g_hash_table_destroy(counter_table);
dbus_connection_unref(connection);
}
|
