notify: Use lazy snap readings and once per notify instance
An application under snap confinement won't have a way of escaping from it, so we can just initialize the snap variables at the global notify scope once and just re-use them when needed.
This commit is contained in:
Marco Trevisan (Treviño)
parent
74f87250a3
commit
e8ea0c39d0
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@ -36,6 +36,10 @@ gint _notify_notification_get_timeout (const NotifyNotific
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gboolean _notify_notification_has_nondefault_actions (const NotifyNotification *n);
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gboolean _notify_check_spec_version (int major, int minor);
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const char * _notify_get_snap_name (void);
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const char * _notify_get_snap_path (void);
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const char * _notify_get_snap_app (void);
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G_END_DECLS
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#endif /* _LIBNOTIFY_INTERNAL_H_ */
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@ -70,10 +70,6 @@ struct _NotifyNotificationPrivate
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char *body;
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char *activation_token;
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const char *snap_path;
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const char *snap_name;
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char *snap_app;
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/* NULL to use icon data. Anything else to have server lookup icon */
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char *icon_name;
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@ -356,104 +352,6 @@ destroy_pair (CallbackPair *pair)
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g_free (pair);
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}
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static void
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maybe_initialize_snap (NotifyNotification *obj)
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{
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NotifyNotificationPrivate *priv = obj->priv;
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gchar *cgroup_contents = NULL;
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priv->snap_path = g_getenv ("SNAP");
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if (priv->snap_path == NULL)
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return;
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if (*priv->snap_path == '\0' ||
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!strchr (priv->snap_path, G_DIR_SEPARATOR)) {
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priv->snap_path = NULL;
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return;
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}
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priv->snap_name = g_getenv ("SNAP_NAME");
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if (priv->snap_name && *priv->snap_name == '\0') {
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priv->snap_name = NULL;
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}
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if (g_file_get_contents ("/proc/self/cgroup", &cgroup_contents,
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NULL, NULL)) {
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gchar **lines = g_strsplit (cgroup_contents, "\n", -1);
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gchar *found_snap_name = NULL;
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gint i;
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for (i = 0; lines[i]; ++i) {
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gchar **parts = g_strsplit (lines[i], ":", 3);
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gchar *basename;
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gchar **ns;
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guint ns_length;
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if (g_strv_length (parts) != 3) {
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g_strfreev (parts);
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continue;
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}
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basename = g_path_get_basename (parts[2]);
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g_strfreev (parts);
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if (!basename) {
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continue;
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}
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ns = g_strsplit (basename, ".", -1);
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ns_length = g_strv_length (ns);
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g_free (basename);
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if (ns_length < 2 || !g_str_equal (ns[0], "snap")) {
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g_strfreev (ns);
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continue;
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}
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if (priv->snap_name == NULL) {
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g_free (found_snap_name);
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found_snap_name = g_strdup (ns[1]);
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}
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if (ns_length < 3) {
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g_strfreev (ns);
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continue;
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}
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if (priv->snap_name == NULL) {
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priv->snap_name = found_snap_name;
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found_snap_name = NULL;
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}
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if (g_str_equal (ns[1], priv->snap_name)) {
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priv->snap_app = g_strdup (ns[2]);
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g_strfreev (ns);
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break;
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}
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g_strfreev (ns);
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}
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if (priv->snap_name == NULL && found_snap_name != NULL) {
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priv->snap_name = found_snap_name;
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found_snap_name = NULL;
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}
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g_strfreev (lines);
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g_free (found_snap_name);
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}
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if (priv->snap_app == NULL) {
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priv->snap_app = g_strdup (priv->snap_name);
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}
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g_debug ("SNAP path: %s", priv->snap_path);
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g_debug ("SNAP name: %s", priv->snap_name);
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g_debug ("SNAP app: %s", priv->snap_app);
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g_free (cgroup_contents);
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}
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static void
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notify_notification_init (NotifyNotification *obj)
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{
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@ -469,8 +367,6 @@ notify_notification_init (NotifyNotification *obj)
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g_str_equal,
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g_free,
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(GDestroyNotify) destroy_pair);
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maybe_initialize_snap (obj);
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}
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static void
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@ -487,7 +383,6 @@ notify_notification_finalize (GObject *object)
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g_free (priv->body);
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g_free (priv->icon_name);
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g_free (priv->activation_token);
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g_free (priv->snap_app);
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if (priv->actions != NULL) {
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g_slist_foreach (priv->actions, (GFunc) g_free, NULL);
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@ -596,7 +491,6 @@ static gchar *
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try_prepend_snap_desktop (NotifyNotification *notification,
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const gchar *desktop)
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{
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NotifyNotificationPrivate *priv = notification->priv;
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gchar *ret = NULL;
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/*
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@ -604,11 +498,11 @@ try_prepend_snap_desktop (NotifyNotification *notification,
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* ${SNAP_NAME}_; snap .desktop files are in the format
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* ${SNAP_NAME}_desktop_file_name
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*/
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ret = try_prepend_path (desktop, priv->snap_path);
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ret = try_prepend_path (desktop, _notify_get_snap_path ());
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if (ret == NULL && priv->snap_name != NULL &&
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if (ret == NULL && _notify_get_snap_name () != NULL &&
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strchr (desktop, G_DIR_SEPARATOR) == NULL) {
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ret = g_strdup_printf ("%s_%s", priv->snap_name, desktop);
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ret = g_strdup_printf ("%s_%s", _notify_get_snap_name (), desktop);
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}
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return ret;
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@ -619,7 +513,7 @@ try_prepend_snap (NotifyNotification *notification,
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const gchar *value)
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{
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/* hardcoded paths to icons might be relocated under $SNAP */
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return try_prepend_path (value, notification->priv->snap_path);
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return try_prepend_path (value, _notify_get_snap_path ());
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}
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@ -831,13 +725,13 @@ notify_notification_show (NotifyNotification *notification,
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g_variant_new_int64 (getpid ()));
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}
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if (priv->snap_app &&
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if (_notify_get_snap_app () &&
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g_hash_table_lookup (priv->hints, "desktop-entry") == NULL) {
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gchar *snap_desktop;
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snap_desktop = g_strdup_printf ("%s_%s",
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priv->snap_name,
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priv->snap_app);
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_notify_get_snap_name (),
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_notify_get_snap_app ());
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g_debug ("Using desktop entry: %s", snap_desktop);
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g_variant_builder_add (&hints_builder, "{sv}",
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@ -846,7 +740,7 @@ notify_notification_show (NotifyNotification *notification,
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}
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#ifdef GLIB_VERSION_2_32
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if (!priv->snap_app) {
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if (!_notify_get_snap_app ()) {
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application = g_application_get_default ();
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}
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@ -1078,7 +972,7 @@ maybe_parse_snap_hint_value (NotifyNotification *notification,
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{
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StringParserFunc parse_func = NULL;
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if (!notification->priv->snap_path)
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if (!_notify_get_snap_path ())
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return value;
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if (g_strcmp0 (key, "desktop-entry") == 0) {
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@ -43,6 +43,8 @@
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static gboolean _initted = FALSE;
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static char *_app_name = NULL;
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static char *_snap_name = NULL;
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static char *_snap_app = NULL;
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static GDBusProxy *_proxy = NULL;
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static GList *_active_notifications = NULL;
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static int _spec_version_major = 0;
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@ -151,13 +153,20 @@ notify_init (const char *app_name)
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if (_initted)
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return TRUE;
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if (app_name == NULL) {
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#ifdef GLIB_VERSION_2_32
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if (app_name == NULL && g_application_get_default ()) {
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GApplication *application = g_application_get_default ();
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GApplication *application;
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#endif
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app_name = _notify_get_snap_app ();
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#ifdef GLIB_VERSION_2_32
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if (app_name == NULL &&
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(application = g_application_get_default ())) {
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app_name = g_application_get_application_id (application);
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}
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#endif
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}
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notify_set_app_name (app_name);
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@ -170,6 +179,148 @@ notify_init (const char *app_name)
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return TRUE;
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}
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static void
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_initialize_snap_names (void)
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{
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gchar *cgroup_contents = NULL;
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gchar *found_snap_name = NULL;
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gchar **lines;
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gint i;
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if (!g_file_get_contents ("/proc/self/cgroup", &cgroup_contents,
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NULL, NULL)) {
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g_free (cgroup_contents);
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return;
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}
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lines = g_strsplit (cgroup_contents, "\n", -1);
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g_free (cgroup_contents);
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for (i = 0; lines[i]; ++i) {
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gchar **parts = g_strsplit (lines[i], ":", 3);
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gchar *basename;
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gchar **ns;
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guint ns_length;
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if (g_strv_length (parts) != 3) {
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g_strfreev (parts);
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continue;
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}
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basename = g_path_get_basename (parts[2]);
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g_strfreev (parts);
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if (!basename) {
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continue;
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}
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ns = g_strsplit (basename, ".", -1);
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ns_length = g_strv_length (ns);
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g_free (basename);
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if (ns_length < 2 || !g_str_equal (ns[0], "snap")) {
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g_strfreev (ns);
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continue;
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}
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if (_snap_name == NULL) {
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g_free (found_snap_name);
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found_snap_name = g_strdup (ns[1]);
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}
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if (ns_length < 3) {
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g_strfreev (ns);
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continue;
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}
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if (_snap_name == NULL) {
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_snap_name = found_snap_name;
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found_snap_name = NULL;
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g_debug ("SNAP name: %s", _snap_name);
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}
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if (g_str_equal (ns[1], _snap_name)) {
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_snap_app = g_strdup (ns[2]);
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g_strfreev (ns);
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break;
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}
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g_strfreev (ns);
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}
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if (_snap_name == NULL && found_snap_name != NULL) {
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_snap_name = found_snap_name;
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found_snap_name = NULL;
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g_debug ("SNAP name: %s", _snap_name);
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}
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if (_snap_app == NULL) {
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_snap_app = g_strdup (_snap_name);
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}
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g_debug ("SNAP app: %s", _snap_app);
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g_strfreev (lines);
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g_free (found_snap_name);
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}
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const char *
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_notify_get_snap_path (void)
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{
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static const char *snap_path = NULL;
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static gsize snap_path_set = FALSE;
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if (g_once_init_enter (&snap_path_set)) {
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snap_path = g_getenv ("SNAP");
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if (!snap_path || *snap_path == '\0' ||
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!strchr (snap_path, G_DIR_SEPARATOR)) {
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snap_path = NULL;
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} else {
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g_debug ("SNAP path: %s", snap_path);
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}
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g_once_init_leave (&snap_path_set, TRUE);
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}
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return snap_path;
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}
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const char *
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_notify_get_snap_name (void)
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{
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static gsize snap_name_set = FALSE;
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if (g_once_init_enter (&snap_name_set)) {
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if (!_snap_name) {
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const char *snap_name_env = g_getenv ("SNAP_NAME");
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if (!snap_name_env || *snap_name_env == '\0')
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snap_name_env = NULL;
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_snap_name = g_strdup (snap_name_env);
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g_debug ("SNAP name: %s", _snap_name);
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}
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g_once_init_leave (&snap_name_set, TRUE);
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}
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return _snap_name;
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}
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const char *
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_notify_get_snap_app (void)
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{
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static gsize snap_app_set = FALSE;
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if (g_once_init_enter (&snap_app_set)) {
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_initialize_snap_names ();
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g_once_init_leave (&snap_app_set, TRUE);
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}
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return _snap_app;
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}
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/**
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* notify_get_app_name:
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*
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@ -219,6 +370,12 @@ notify_uninit (void)
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_proxy = NULL;
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}
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g_free (_snap_name);
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_snap_name = NULL;
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g_free (_snap_app);
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_snap_app = NULL;
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_initted = FALSE;
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}
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