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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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) override;
NS_IMETHOD_(MozExternalRefCountType) AddRef(void) override
{
return 1;
}
NS_IMETHOD_(MozExternalRefCountType) Release(void) override
{
return 1;
}
NS_DECL_NSIMEMORY
static nsresult Create(nsISupports* aOuter,
const nsIID& aIID, void** aResult);
nsresult FlushMemory(const char16_t* aReason, bool aImmediate);
nsresult RunFlushers(const char16_t* aReason);
protected:
struct FlushEvent : public nsIRunnable
{
constexpr FlushEvent() : mReason(nullptr) {}
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__
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