1 files changed, 43 insertions, 0 deletions
diff --git a/systray/helpers.c b/systray/helpers.c
new file mode 100644
index 0000000..d1af9f8
--- /dev/null
+++ b/systray/helpers.c
@@ -0,0 +1,43 @@
+#include "helpers.h"
+
+#include <dbus/dbus.h>
+
+#include <errno.h>
+#include <stddef.h>
+
+// IWYU pragma: no_include "dbus/dbus-protocol.h"
+// IWYU pragma: no_include "dbus/dbus-shared.h"
+
+int
+request_property(DBusConnection *conn, const char *busname, const char *busobj,
+                 const char *prop, const char *iface, PropHandler handler,
+                 void *data)
+{
+	DBusMessage *msg = NULL;
+	DBusPendingCall *pending = NULL;
+	int r;
+
+	if (!(msg = dbus_message_new_method_call(busname, busobj,
+	                                         DBUS_INTERFACE_PROPERTIES,
+	                                         "Get")) ||
+	    !dbus_message_append_args(msg, DBUS_TYPE_STRING, &iface,
+	                              DBUS_TYPE_STRING, &prop,
+	                              DBUS_TYPE_INVALID) ||
+	    !dbus_connection_send_with_reply(conn, msg, &pending, -1) ||
+	    !dbus_pending_call_set_notify(pending, handler, data, NULL)) {
+		r = -ENOMEM;
+		goto fail;
+	}
+
+	dbus_message_unref(msg);
+	return 0;
+
+fail:
+	if (pending) {
+		dbus_pending_call_cancel(pending);
+		dbus_pending_call_unref(pending);
+	}
+	if (msg)
+		dbus_message_unref(msg);
+	return r;
+}