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Diffstat (limited to 'src/apt-watcher.c')
| -rw-r--r-- | src/apt-watcher.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/apt-watcher.c b/src/apt-watcher.c new file mode 100644 index 0000000..daab2ee --- /dev/null +++ b/src/apt-watcher.c @@ -0,0 +1,177 @@ +/* +Copyright 2011 Canonical Ltd. + +Authors: + Conor Curran <conor.curran@canonical.com> + +This program is free software: you can redistribute it and/or modify it +under the terms of the GNU General Public License version 3, 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 warranties of +MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>. +*/ + +#include "apt-watcher.h" +#include <gio/gio.h> + +static guint watcher_id; + +struct _AptWatcher +{ + GObject parent_instance; + GCancellable * proxy_cancel; + GDBusProxy * proxy; +}; + +static void +apt_watcher_on_name_appeared (GDBusConnection *connection, + const gchar *name, + const gchar *name_owner, + gpointer user_data); +static void +apt_watcher_on_name_vanished (GDBusConnection *connection, + const gchar *name, + gpointer user_data); +static void +apt_watcher_get_active_transactions_cb (GObject * obj, + GAsyncResult * res, + gpointer user_data); +static void +fetch_proxy_cb (GObject * object, + GAsyncResult * res, + gpointer user_data); + +G_DEFINE_TYPE (AptWatcher, apt_watcher, G_TYPE_OBJECT); + +static void +apt_watcher_init (AptWatcher *self) +{ + self->proxy_cancel = g_cancellable_new(); + g_dbus_proxy_new_for_bus (G_BUS_TYPE_SYSTEM, + G_DBUS_PROXY_FLAGS_NONE, + NULL, + "org.debian.apt", + "/org/debian/apt", + "org.debian.apt", + self->proxy_cancel, + fetch_proxy_cb, + self); +} + +static void +apt_watcher_finalize (GObject *object) +{ + g_bus_unwatch_name (watcher_id); + + G_OBJECT_CLASS (apt_watcher_parent_class)->finalize (object); +} + +static void +apt_watcher_class_init (AptWatcherClass *klass) +{ + GObjectClass* object_class = G_OBJECT_CLASS (klass); + object_class->finalize = apt_watcher_finalize; +} + +static void +fetch_proxy_cb (GObject * object, GAsyncResult * res, gpointer user_data) +{ + GError * error = NULL; + + AptWatcher* self = APT_WATCHER(user_data); + g_return_if_fail(self != NULL); + + GDBusProxy * proxy = g_dbus_proxy_new_for_bus_finish(res, &error); + + if (self->proxy_cancel != NULL) { + g_object_unref(self->proxy_cancel); + self->proxy_cancel = NULL; + } + + if (error != NULL) { + g_warning("Could not grab DBus proxy for %s: %s", + "org.debian.apt", error->message); + g_error_free(error); + return; + } + + self->proxy = proxy; + // Set up the watch. + watcher_id = g_bus_watch_name (G_BUS_TYPE_SYSTEM, + "org.debian.apt", + G_BUS_NAME_WATCHER_FLAGS_NONE, + apt_watcher_on_name_appeared, + apt_watcher_on_name_vanished, + self, + NULL); + + //We'll need to connect to the state changed signal + //g_signal_connect(proxy, "g-signal", G_CALLBACK(receive_signal), self); +} + + +static void +apt_watcher_on_name_appeared (GDBusConnection *connection, + const gchar *name, + const gchar *name_owner, + gpointer user_data) +{ + g_return_if_fail (APT_IS_WATCHER (user_data)); + AptWatcher* watcher = APT_WATCHER (user_data); + + g_print ("Name %s on %s is owned by %s\n", + name, + "the system bus", + name_owner); + + + g_dbus_proxy_call (watcher->proxy, + "GetActiveTransactions", + NULL, + G_DBUS_CALL_FLAGS_NONE, + -1, + NULL, + apt_watcher_get_active_transactions_cb, + user_data); +} + +static void +apt_watcher_get_active_transactions_cb (GObject * obj, + GAsyncResult * res, + gpointer user_data) +{ + g_return_if_fail (APT_IS_WATCHER (user_data)); + AptWatcher* self = APT_WATCHER (user_data); + + GError * error = NULL; + GVariant * result; + + result = g_dbus_proxy_call_finish(self->proxy, res, &error); + + if (error != NULL) { + g_warning ("unable to complete the fetching of active transactions"); + g_error_free (error); + return; + } + + g_debug ("WE GOT SOME ACTIVE TRANSACTIONS TO EXAMINE, type is %s", + g_variant_get_type_string (result)); + //gchar ** transactions = g_variant_get_strv (result); + +} + +static void +apt_watcher_on_name_vanished (GDBusConnection *connection, + const gchar *name, + gpointer user_data) +{ + g_print ("Name %s does not exist on %s\n", + name, + "the system bus"); +} |