55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsMemoryImpl_h__
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#define nsMemoryImpl_h__
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#include "mozilla/Atomics.h"
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#include "nsIMemory.h"
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#include "nsIRunnable.h"
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// nsMemoryImpl is a static object. We can do this because it doesn't have
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// a constructor/destructor or any instance members. Please don't add
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// instance member variables, only static member variables.
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class nsMemoryImpl : public nsIMemory
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{
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public:
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// We don't use the generic macros because we are a special static object
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NS_IMETHOD QueryInterface(REFNSIID aIID, void** aResult) override;
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NS_IMETHOD_(MozExternalRefCountType) AddRef(void) override
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{
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return 1;
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}
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NS_IMETHOD_(MozExternalRefCountType) Release(void) override
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{
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return 1;
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}
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NS_DECL_NSIMEMORY
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static nsresult Create(nsISupports* aOuter,
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const nsIID& aIID, void** aResult);
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nsresult FlushMemory(const char16_t* aReason, bool aImmediate);
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nsresult RunFlushers(const char16_t* aReason);
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protected:
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struct FlushEvent : public nsIRunnable
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{
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constexpr FlushEvent() : mReason(nullptr) {}
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSIRUNNABLE
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const char16_t* mReason;
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};
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static mozilla::Atomic<bool> sIsFlushing;
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static FlushEvent sFlushEvent;
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static PRIntervalTime sLastFlushTime;
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};
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#endif // nsMemoryImpl_h__
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