60 lines
2.1 KiB
Vala
60 lines
2.1 KiB
Vala
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public abstract class DBusServiceBase : Object {
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protected uint dbus_watch_id;
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public bool is_connected { get; private set; default = false; }
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protected const string DBUS_PATH = "/net/buzzert/kordophonecd/daemon";
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protected const string DBUS_NAME = "net.buzzert.kordophonecd";
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protected DBusServiceBase() {
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connect_to_dbus.begin((obj, res) => {
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connect_to_dbus.end(res);
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});
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}
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~DBusServiceBase() {
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if (dbus_watch_id > 0) {
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Bus.unwatch_name(dbus_watch_id);
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}
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}
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protected abstract void setup_signals();
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protected abstract async Object? get_proxy() throws Error;
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protected abstract string get_service_name();
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private async void connect_to_dbus() {
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try {
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debug("Trying to connect to %s service at path: %s", get_service_name(), DBUS_PATH);
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var proxy = yield get_proxy();
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if (proxy == null) {
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throw new Error(1337, 1, "Failed to get proxy");
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}
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// If we get here, connection succeeded
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debug("Connected to %s service at path: %s", get_service_name(), DBUS_PATH);
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is_connected = true;
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setup_signals();
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} catch (Error e) {
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debug("Failed to connect to %s at %s: %s", get_service_name(), DBUS_PATH, e.message);
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}
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if (!is_connected) {
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warning("Failed to connect to %s on any known path", get_service_name());
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// Watch for the service to appear
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dbus_watch_id = Bus.watch_name(BusType.SESSION,
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DBUS_NAME,
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BusNameWatcherFlags.AUTO_START,
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() => {
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connect_to_dbus.begin();
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},
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null);
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}
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}
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protected Error create_not_connected_error() {
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return new Error(1337, 1, @"$(get_service_name()) not connected");
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}
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}
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