gecko-dev/xpcom/base/nsTraceRefcnt.h

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2.3 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1998
* Netscape Communications Corporation. All Rights Reserved.
*/
#ifndef nsTraceRefcnt_h___
#define nsTraceRefcnt_h___
#include "nsCom.h"
/**
* This class is used to support tracing (and logging using nspr) of
* addref and release calls. Note that only calls that use the
* NS_ADDREF and related macros in nsISupports can be traced.
*
* The name of the nspr log module is "xpcomrefcnt" (case matters).
*
* This code only performs tracing built with debugging AND when
* built with -DMOZ_TRACE_XPCOM_REFCNT (because it's expensive!).
*/
class nsTraceRefcnt {
public:
static NS_COM unsigned long AddRef(void* aPtr,
unsigned long aNewRefcnt,
const char* aFile,
int aLine);
static NS_COM unsigned long Release(void* aPtr,
unsigned long aNewRefcnt,
const char* aFile,
int aLine);
static NS_COM void Create(void* aPtr,
const char* aType,
const char* aFile,
int aLine);
static NS_COM void Destroy(void* aPtr,
const char* aFile,
int aLine);
static NS_COM void LoadLibrarySymbols(const char* aLibraryName,
void* aLibrayHandle);
static NS_COM void WalkTheStack(char* aBuffer, int aBufLen);
};
#endif /* nsTraceRefcnt_h___ */