Merge pull request #48 from async-interop/underlying-loop-handle

Add getLoopHandle() for accessing the underlying loop

Author: kelunik

src/LoopDriver.php

@@ -159,4 +159,15 @@ public function setErrorHandler(callable $callback = null);
      * @return bool
      */
     public function supports($feature);
+
+    /**
+     * Get the underlying loop handle.
+     *
+     * Example: the uv_loop resource for libuv or the EvLoop object for libev or null for a native driver
+     *
+     * Note: This function is *not* exposed in the Loop class; users shall access it directly on the respective loop instance.
+     *
+     * @return null|object|resource The loop handle the event loop operates on. Null if there is none.
+     */
+    public static function getHandle();
 }