Adding a Wayland basic toolkit

ui/wayland/wayland_message_pump.h

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WAYLAND_MESSAGE_PUMP_H_
+#define WAYLAND_MESSAGE_PUMP_H_
+
+#include <glib.h>
+#include <stdint.h>
+
+class WaylandDisplay;
+
+class WaylandMessagePump {
+ public:
+  WaylandMessagePump(WaylandDisplay* display);
+  virtual ~WaylandMessagePump();
+
+ protected:
+  virtual int HandlePrepare();
+  virtual bool HandleCheck();
+  virtual void HandleDispatch();
+ private:
+  struct WorkSource : public GSource {
+    WaylandMessagePump* pump;
+  };
+
+  static gboolean SourcePrepare(GSource* source, gint* timeout);
+  static gboolean SourceCheck(GSource* source);
+  static gboolean SourceDispatch(GSource* source,
+                                 GSourceFunc callback,
+                                 gpointer data);
+  static int SourceUpdate(uint32_t mask, void* data);
+
+  WaylandDisplay* display_;
+  WorkSource* source_;
+  GPollFD pfd_;
+  uint32_t mask_;
+};
+
+#endif