kernel: implement a generic object signalling system

libmango/include-user/mango/object.h

@@ -0,0 +1,8 @@
+#ifndef MANGO_OBJECT_H_
+#define MANGO_OBJECT_H_
+
+#include <mango/types.h>
+
+extern kern_status_t kern_object_wait(kern_wait_item_t *items, size_t nr_items);
+
+#endif

libmango/include/mango/signal.h

@@ -0,0 +1,10 @@
+#ifndef MANGO_SIGNAL_H_
+#define MANGO_SIGNAL_H_
+
+#define CHANNEL_SIGNAL_MSG_RECEIVED           0x01u
+
+#define VM_CONTROLLER_SIGNAL_REQUEST_RECEIVED 0x01u
+
+#define EQUEUE_SIGNAL_PACKET_RECEIVED         0x01u
+
+#endif