| /* |
| * |
| * 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); |
| } |