[NaCl SDK] Support non blocking TCP/UDP

native_client_sdk/src/libraries/nacl_io/mount_node.h

Index: native_client_sdk/src/libraries/nacl_io/mount_node.h
diff --git a/native_client_sdk/src/libraries/nacl_io/mount_node.h b/native_client_sdk/src/libraries/nacl_io/mount_node.h
index 661a194bfe0390e581bba027b592d3acdd60aa95..37847c9bd57c7d861e4d54c79dc92592bd6ea225 100644
--- a/native_client_sdk/src/libraries/nacl_io/mount_node.h
+++ b/native_client_sdk/src/libraries/nacl_io/mount_node.h
@@ -26,7 +26,7 @@ typedef sdk_util::ScopedRef<MountNode> ScopedMountNode;
 
 // NOTE: The KernelProxy is the only class that should be setting errno. All
 // other classes should return Error (as defined by nacl_io/error.h).
-class MountNode : public EventListener {
+class MountNode : public sdk_util::RefObject {
  protected:
   explicit MountNode(Mount* mount);
   virtual ~MountNode();
@@ -37,7 +37,9 @@ class MountNode : public EventListener {
   virtual void Destroy();
 
  public:
-  // Declared in EventEmitter. defaults to signalled.
+  // Returns the emitter for this Node if it has one, if not, assume this
+  // object can not block.
+  virtual EventEmitter* GetEventEmitter();
   virtual uint32_t GetEventStatus();
 
   // Normal OS operations on a node (file), can be called by the kernel