openrc-shutdown: Add scheduled shutdown and the ability to cancel a shutdown

You can now schedule a shutdown for a certain time or a cpecific number
of minutes into the future.

When a shutdown is running, you can now cancel it with ^c from the
keyboard or by running "openrc-shutdown -c" from another shell.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/rc/broadcast.h b/src/rc/broadcast.h
new file mode 100644
index 00000000..5f948272
--- /dev/null
+++ b/src/rc/broadcast.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright 2018 Sony Interactive Entertainment Inc. 
+ *
+ * This file is part of OpenRC. It is subject to the license terms in
+ * the LICENSE file found in the top-level directory of this
+ * distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
+ * This file may not be copied, modified, propagated, or distributed
+ *    except according to the terms contained in the LICENSE file.
+ */
+
+#ifndef BROADCAST_H
+#define BROADCAST_H
+
+void broadcast(char *text);
+
+#endif