Add RS watchdog.

Change-Id: I4c912beb84fa8a37ada0088049f7776132e994b6
diff --git a/libs/rs/rsThreadIO.h b/libs/rs/rsThreadIO.h
index 9036118..ebce0ab 100644
--- a/libs/rs/rsThreadIO.h
+++ b/libs/rs/rsThreadIO.h
@@ -39,6 +39,7 @@
     // Returns true if any commands were processed.
     bool playCoreCommands(Context *con, bool waitForCommand, uint64_t timeToWait);
 
+    void setTimoutCallback(void (*)(void *), void *, uint64_t timeout);
     //LocklessCommandFifo mToCore;