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 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #ifndef nsMemoryImpl_h__

 #define nsMemoryImpl_h__

 #include "mozilla/Atomics.h"

 #include "nsIMemory.h"

 #include "nsIRunnable.h"

 // nsMemoryImpl is a static object. We can do this because it doesn't have

 // a constructor/destructor or any instance members. Please don't add

 // instance member variables, only static member variables.

 class nsMemoryImpl : public nsIMemory

 {

 public:

     // We don't use the generic macros because we are a special static object

     NS_IMETHOD QueryInterface(REFNSIID aIID, void** aResult);

     NS_IMETHOD_(MozExternalRefCountType) AddRef(void) { return 1; }

     NS_IMETHOD_(MozExternalRefCountType) Release(void) { return 1; }

     NS_DECL_NSIMEMORY

     static nsresult Create(nsISupports* outer,

                            const nsIID& aIID, void **aResult);

     NS_HIDDEN_(nsresult) FlushMemory(const char16_t* aReason, bool aImmediate);

     NS_HIDDEN_(nsresult) RunFlushers(const char16_t* aReason);

 protected:

     struct FlushEvent : public nsIRunnable {

         NS_DECL_ISUPPORTS_INHERITED

         NS_DECL_NSIRUNNABLE

         const char16_t* mReason;

     };

     static mozilla::Atomic<bool> sIsFlushing;

     static FlushEvent sFlushEvent;

     static PRIntervalTime sLastFlushTime;

 };

 #endif // nsMemoryImpl_h__