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/*
*
* 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)
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);
}
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