gecko-dev/xpcom/base/nsTraceRefcnt.h

47 строки
1.4 KiB
C++

/* -*- 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 nsTraceRefcnt_h___
#define nsTraceRefcnt_h___
#include <stdio.h> // for FILE
#include "nscore.h"
class nsTraceRefcnt
{
public:
static void Shutdown();
enum StatisticsType {
ALL_STATS,
NEW_STATS
};
static nsresult DumpStatistics(StatisticsType aType = ALL_STATS,
FILE* aOut = 0);
static void ResetStatistics();
static void WalkTheStack(FILE* aStream);
/**
* Tell nsTraceRefcnt whether refcounting, allocation, and destruction
* activity is legal. This is used to trigger assertions for any such
* activity that occurs because of static constructors or destructors.
*/
static void SetActivityIsLegal(bool aLegal);
};
////////////////////////////////////////////////////////////////////////////////
// And now for that utility that you've all been asking for...
extern "C" void
NS_MeanAndStdDev(double aNumberOfValues,
double aSumOfValues, double aSumOfSquaredValues,
double* aMeanResult, double* aStdDevResult);
////////////////////////////////////////////////////////////////////////////////
#endif