use select() so we can wait for XEvents or our timer

include/views/SkOSWindow_Unix.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkOSWindow_Unix_DEFINED
 #define SkOSWindow_Unix_DEFINED
 
@@ skipping 14 matching lines @@
 
 class SkOSWindow : public SkWindow {
 public:
     SkOSWindow(void*);
     ~SkOSWindow();
 
     void* getHWND() const { return (void*)fUnixWindow.fWin; }
     void* getDisplay() const { return (void*)fUnixWindow.fDisplay; }
     void* getUnixWindow() const { return (void*)&fUnixWindow; }
     void loop();
-    void post_linuxevent();
 
     enum SkBackEndTypes {
         kNone_BackEndType,
         kNativeGL_BackEndType,
     };
 
     struct AttachmentInfo {
         int fSampleCount;
         int fStencilBits;
     };
 
     bool attach(SkBackEndTypes attachType, int msaaSampleCount, AttachmentInfo*);
     void detach();
     void present();
 
     int getMSAASampleCount() const { return fMSAASampleCount; }
 
     //static bool PostEvent(SkEvent* evt, SkEventSinkID, SkMSec delay);
 
 protected:
     // Overridden from from SkWindow:
-    virtual bool onEvent(const SkEvent&) SK_OVERRIDE;
-    virtual void onHandleInval(const SkIRect&) SK_OVERRIDE;
-    virtual bool onHandleChar(SkUnichar) SK_OVERRIDE;
-    virtual bool onHandleKey(SkKey) SK_OVERRIDE;
-    virtual bool onHandleKeyUp(SkKey) SK_OVERRIDE;
     virtual void onSetTitle(const char title[]) SK_OVERRIDE;
 
 private:
+    enum NextXEventResult {
+        kContinue_NextXEventResult,
+        kQuitRequest_NextXEventResult,
+        kPaintRequest_NextXEventResult
+    };
+
+    NextXEventResult nextXEvent();
     void doPaint();
     void mapWindowAndWait();
 
     void closeWindow();
     void initWindow(int newMSAASampleCount, AttachmentInfo* info);
 
     SkUnixWindow fUnixWindow;
 
     // Needed for GL
     XVisualInfo* fVi;
     // we recreate the underlying xwindow if this changes
     int fMSAASampleCount;
 
     typedef SkWindow INHERITED;
 };
 
 #endif