mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-06 09:05:45 +00:00
270 lines
9.7 KiB
C++
270 lines
9.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Netscape 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/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 the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* L. David Baron <dbaron@fas.harvard.edu>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either 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 NPL, 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 NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
#ifndef nsTraceRefcnt_h___
|
|
#define nsTraceRefcnt_h___
|
|
|
|
#include "nsCom.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
class nsISupports;
|
|
|
|
// Normaly, the implementation of NS_LOG_ADDREF and NS_LOG_RELEASE
|
|
// will use a stack crawl to determine who called Addref/Release on an
|
|
// xpcom object. If your platform can't implement a stack crawling
|
|
// function, then define this to symbol. When the symbol is defined
|
|
// then the NS_LOG_ADDREF_CALL and NS_LOG_RELEASE_CALL will expand
|
|
// differently.
|
|
#undef NS_LOSING_ARCHITECTURE
|
|
|
|
// 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 seperate 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
|
|
|
|
// Disable refcnt logging if we are in xpcom glue
|
|
// Bug #151072
|
|
#if defined(XPCOM_GLUE)
|
|
#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))
|
|
|
|
#ifdef NS_LOSING_ARCHITECTURE
|
|
|
|
#define NS_LOG_ADDREF_CALL(_p,_rc,_file,_line) \
|
|
nsTraceRefcnt::LogAddRefCall((_p), (_rc), (_file), (_line))
|
|
|
|
#define NS_LOG_RELEASE_CALL(_p,_rc,_file,_line) \
|
|
nsTraceRefcnt::LogReleaseCall((_p), (_rc), (_file), (_line))
|
|
|
|
#define NS_LOG_NEW_XPCOM(_p,_type,_size,_file,_line) \
|
|
nsTraceRefcnt::LogNewXPCOM((_p),(_type),(PRUint32)(_size),(_file),(_line))
|
|
|
|
#define NS_LOG_DELETE_XPCOM(_p,_file,_line) \
|
|
nsTraceRefcnt::LogDeleteXPCOM((_p),(_file),(_line))
|
|
|
|
#else
|
|
|
|
#define NS_LOG_ADDREF_CALL(_p,_rc,_file,_line) _rc
|
|
#define NS_LOG_RELEASE_CALL(_p,_rc,_file,_line) _rc
|
|
|
|
#define NS_LOG_NEW_XPCOM(_p,_type,_size,_file,_line)
|
|
#define NS_LOG_DELETE_XPCOM(_p,_file,_line)
|
|
|
|
#endif
|
|
|
|
#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_RELEASE(_c, _p); \
|
|
if ((_p)) { \
|
|
nsTraceRefcnt::LogReleaseCOMPtr((_c),NS_STATIC_CAST(nsISupports*,_p)); \
|
|
NS_RELEASE(_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 NS_LOG_NEW_XPCOM(_p,_type,_size,_file,_line)
|
|
#define NS_LOG_DELETE_XPCOM(_p,_file,_line)
|
|
#define NS_LOG_ADDREF_CALL(_p,_rc,_file,_line) _rc
|
|
#define NS_LOG_RELEASE_CALL(_p,_rc,_file,_line) _rc
|
|
#define MOZ_DECL_CTOR_COUNTER(_type)
|
|
#define MOZ_COUNT_CTOR(_type)
|
|
#define MOZ_COUNT_DTOR(_type)
|
|
|
|
#endif /* NS_BUILD_REFCNT_LOGGING */
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
struct nsTraceRefcntStats {
|
|
nsrefcnt mAddRefs;
|
|
nsrefcnt mReleases;
|
|
nsrefcnt mCreates;
|
|
nsrefcnt mDestroys;
|
|
double mRefsOutstandingTotal;
|
|
double mRefsOutstandingSquared;
|
|
double mObjsOutstandingTotal;
|
|
double mObjsOutstandingSquared;
|
|
};
|
|
|
|
// Function type used by GatherStatistics. For each type that data has
|
|
// been gathered for, this function is called with the counts of the
|
|
// various operations that have been logged. The function can return
|
|
// PR_FALSE if the gathering should stop.
|
|
//
|
|
// aCurrentStats is the current value of the counters. aPrevStats is
|
|
// the previous value of the counters which is established by the
|
|
// nsTraceRefcnt::SnapshotStatistics call.
|
|
typedef PRBool (PR_CALLBACK *nsTraceRefcntStatFunc)
|
|
(const char* aTypeName,
|
|
PRUint32 aInstanceSize,
|
|
nsTraceRefcntStats* aCurrentStats,
|
|
nsTraceRefcntStats* aPrevStats,
|
|
void *aClosure);
|
|
|
|
/**
|
|
* 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 void Startup();
|
|
|
|
static NS_COM void Shutdown();
|
|
|
|
static NS_COM void LogAddRef(void* aPtr,
|
|
nsrefcnt aNewRefCnt,
|
|
const char* aTypeName,
|
|
PRUint32 aInstanceSize);
|
|
|
|
static NS_COM void LogRelease(void* aPtr,
|
|
nsrefcnt aNewRefCnt,
|
|
const char* aTypeName);
|
|
|
|
static NS_COM void LogNewXPCOM(void* aPtr,
|
|
const char* aTypeName,
|
|
PRUint32 aInstanceSize,
|
|
const char* aFile,
|
|
int aLine);
|
|
|
|
static NS_COM void LogDeleteXPCOM(void* aPtr,
|
|
const char* aFile,
|
|
int aLine);
|
|
|
|
static NS_COM nsrefcnt LogAddRefCall(void* aPtr,
|
|
nsrefcnt aNewRefcnt,
|
|
const char* aFile,
|
|
int aLine);
|
|
|
|
static NS_COM nsrefcnt LogReleaseCall(void* aPtr,
|
|
nsrefcnt aNewRefcnt,
|
|
const char* aFile,
|
|
int aLine);
|
|
|
|
static NS_COM void LogCtor(void* aPtr, const char* aTypeName,
|
|
PRUint32 aInstanceSize);
|
|
|
|
static NS_COM void LogDtor(void* aPtr, const char* aTypeName,
|
|
PRUint32 aInstanceSize);
|
|
|
|
static NS_COM void LogAddCOMPtr(void *aCOMPtr, nsISupports *aObject);
|
|
|
|
static NS_COM void LogReleaseCOMPtr(void *aCOMPtr, nsISupports *aObject);
|
|
|
|
enum StatisticsType {
|
|
ALL_STATS,
|
|
NEW_STATS
|
|
};
|
|
|
|
static NS_COM nsresult DumpStatistics(StatisticsType type = ALL_STATS,
|
|
FILE* out = 0);
|
|
|
|
static NS_COM void ResetStatistics(void);
|
|
|
|
static NS_COM void GatherStatistics(nsTraceRefcntStatFunc aFunc,
|
|
void* aClosure);
|
|
|
|
static NS_COM void LoadLibrarySymbols(const char* aLibraryName,
|
|
void* aLibrayHandle);
|
|
|
|
static NS_COM void DemangleSymbol(const char * aSymbol,
|
|
char * aBuffer,
|
|
int aBufLen);
|
|
|
|
static NS_COM void WalkTheStack(FILE* aStream);
|
|
|
|
static NS_COM void SetPrefServiceAvailability(PRBool avail);
|
|
|
|
/**
|
|
* 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 NS_COM void SetActivityIsLegal(PRBool aLegal);
|
|
};
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// And now for that utility that you've all been asking for...
|
|
|
|
extern "C" NS_COM void
|
|
NS_MeanAndStdDev(double n, double sumOfValues, double sumOfSquaredValues,
|
|
double *meanResult, double *stdDevResult);
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
#endif /* nsTraceRefcnt_h___ */
|