add signal monitoring support

1 files changed, 12 insertions, 0 deletions

diff --git a/server.c b/server.c
index cfee65a..7b2cb53 100644
--- a/server.c
+++ b/server.c
@@ -72,6 +72,9 @@ static const char * introspect_data = {
 	"   </signal>\n"
 	"   <signal name=\"Stopped\">\n"
 	"   </signal>\n"
+	"   <signal name=\"SignalLevelChanged\">\n"
+	"     <arg type=\"q\" name=\"signal\" />\n"
+	"   </signal>\n"
 	"   <signal name=\"PiReceived\">\n"
 	"     <arg type=\"q\" name=\"pi\" />\n"
 	"   </signal>\n"
@@ -514,6 +517,15 @@ void server_notify_stopped()
 	dbus_message_unref(m);
 }
 
+void server_notify_signal(uint16_t signal)
+{
+	DBusMessage *m = dbus_message_new_signal(BUS_PATH, BUS_INTERFACE, "SignalLevelChanged");
+	g_return_if_fail(m != NULL);
+	dbus_message_append_args(m, DBUS_TYPE_UINT16, &signal, DBUS_TYPE_INVALID);
+	dbus_connection_send(bus, m, NULL);
+	dbus_message_unref(m);
+}
+
 void server_notify_pi(uint16_t pi)
 {
 	DBusMessage *m = dbus_message_new_signal(BUS_PATH, BUS_INTERFACE, "PiChanged");