pjs/xpcom/glue/nsTraceRefcnt.h

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C
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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/MPL/
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* L. David Baron <dbaron@dbaron.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsTraceRefcnt_h___
#define nsTraceRefcnt_h___
#include "nscore.h"
class nsISupports;
// By default refcnt logging is not part of the build.
#undef NS_BUILD_REFCNT_LOGGING
#if (defined(DEBUG) || defined(FORCE_BUILD_REFCNT_LOGGING))
// Make refcnt logging part of the build. This doesn't mean that
// actual logging will occur (that requires a separate enable; see
// nsTraceRefcnt.h for more information).
#define NS_BUILD_REFCNT_LOGGING 1
#endif
// If NO_BUILD_REFCNT_LOGGING is defined then disable refcnt logging
// in the build. This overrides FORCE_BUILD_REFCNT_LOGGING.
#if defined(NO_BUILD_REFCNT_LOGGING)
#undef NS_BUILD_REFCNT_LOGGING
#endif
#ifdef NS_BUILD_REFCNT_LOGGING
#define NS_LOG_ADDREF(_p, _rc, _type, _size) \
nsTraceRefcnt::LogAddRef((_p), (_rc), (_type), (PRUint32) (_size))
#define NS_LOG_RELEASE(_p, _rc, _type) \
nsTraceRefcnt::LogRelease((_p), (_rc), (_type))
#define MOZ_DECL_CTOR_COUNTER(_type)
#define MOZ_COUNT_CTOR(_type) \
PR_BEGIN_MACRO \
nsTraceRefcnt::LogCtor((void*)this, #_type, sizeof(*this)); \
PR_END_MACRO
#define MOZ_COUNT_DTOR(_type) \
PR_BEGIN_MACRO \
nsTraceRefcnt::LogDtor((void*)this, #_type, sizeof(*this)); \
PR_END_MACRO
#ifdef HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR // from autoconf (XXX needs to be
// set for non-autoconf platforms)
// nsCOMPtr.h allows these macros to be defined by clients
// These logging functions require dynamic_cast<void *>, so we don't
// define these macros if we don't have dynamic_cast.
#define NSCAP_LOG_ASSIGNMENT(_c, _p) \
if (_p) \
nsTraceRefcnt::LogAddCOMPtr((_c),NS_STATIC_CAST(nsISupports*,_p))
#define NSCAP_LOG_RELEASE(_c, _p) \
if (_p) \
nsTraceRefcnt::LogReleaseCOMPtr((_c), NS_STATIC_CAST(nsISupports*,_p))
#endif /* HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR */
#else /* !NS_BUILD_REFCNT_LOGGING */
#define NS_LOG_ADDREF(_p, _rc, _type, _size)
#define NS_LOG_RELEASE(_p, _rc, _type)
#define MOZ_DECL_CTOR_COUNTER(_type)
#define MOZ_COUNT_CTOR(_type)
#define MOZ_COUNT_DTOR(_type)
#endif /* NS_BUILD_REFCNT_LOGGING */
//----------------------------------------------------------------------
/**
* Note: The implementations for these methods are no-ops in a build
* where NS_BUILD_REFCNT_LOGGING is disabled.
*/
class nsTraceRefcnt {
public:
static NS_COM_GLUE void LogAddRef(void* aPtr,
nsrefcnt aNewRefCnt,
const char* aTypeName,
PRUint32 aInstanceSize);
static NS_COM_GLUE void LogRelease(void* aPtr,
nsrefcnt aNewRefCnt,
const char* aTypeName);
static NS_COM_GLUE void LogCtor(void* aPtr, const char* aTypeName,
PRUint32 aInstanceSize);
static NS_COM_GLUE void LogDtor(void* aPtr, const char* aTypeName,
PRUint32 aInstanceSize);
static NS_COM_GLUE void LogAddCOMPtr(void *aCOMPtr, nsISupports *aObject);
static NS_COM_GLUE void LogReleaseCOMPtr(void *aCOMPtr, nsISupports *aObject);
};
#endif /* nsTraceRefcnt_h___ */