dom/base/SameProcessMessageQueue.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_SameProcessMessageQueue_h
   8 #define mozilla_dom_SameProcessMessageQueue_h
   9
  10 #include "nsIRunnable.h"
  11 #include "mozilla/RefPtr.h"
  12 #include "nsTArray.h"
  13
  14 namespace mozilla::dom {
  15
  16 class SameProcessMessageQueue {
  17  public:
  18   SameProcessMessageQueue();
  19   virtual ~SameProcessMessageQueue();
  20
  21   class Runnable : public nsIRunnable {
  22    public:
  23     explicit Runnable();
  24
  25     NS_DECL_ISUPPORTS
  26     NS_DECL_NSIRUNNABLE
  27
  28     virtual nsresult HandleMessage() = 0;
  29
  30    protected:
  31     virtual ~Runnable() = default;
  32
  33    private:
  34     bool mDispatched;
  35   };
  36
  37   void Push(Runnable* aRunnable);
  38   void Flush();
  39
  40   static SameProcessMessageQueue* Get();
  41
  42  private:
  43   nsTArray<RefPtr<Runnable>> mQueue;
  44   static SameProcessMessageQueue* sSingleton;
  45 };
  46
  47 }  // namespace mozilla::dom
  48
  49 #endif  // mozilla_dom_SameProcessMessageQueue_h