Make disable return an int32_t for runOnce usage

src/concurrency/OSThread.cpp

@@ -93,10 +93,12 @@ void OSThread::run()
     currentThread = NULL;
 }
 
-void OSThread::disable() 
+int32_t OSThread::disable() 
 {
     enabled = false;
     setInterval(INT32_MAX);
+    
+    return INT32_MAX;
 }
 
 /**

src/concurrency/OSThread.h

@@ -53,7 +53,7 @@ class OSThread : public Thread
 
     static void setup();
 
-    void disable();
+    int32_t disable();
 
     /**
      * Wait a specified number msecs starting from the current time (rather than the last time we were run)