зеркало из https://github.com/mozilla/pjs.git
1445 строки
40 KiB
C++
1445 строки
40 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* L. David Baron <dbaron@dbaron.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsTraceRefcntImpl.h"
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#include "nscore.h"
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#include "nsISupports.h"
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#include "nsVoidArray.h"
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#include "prprf.h"
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#include "prlog.h"
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#include "plstr.h"
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#include <stdlib.h>
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#include "nsCOMPtr.h"
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#include "nsCRT.h"
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#include <math.h>
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#if defined(_WIN32)
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#include <windows.h>
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#elif defined(linux) && defined(__GLIBC__) && (defined(__i386) || defined(PPC))
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#include <setjmp.h>
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//
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// On glibc 2.1, the Dl_info api defined in <dlfcn.h> is only exposed
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// if __USE_GNU is defined. I suppose its some kind of standards
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// adherence thing.
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//
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#if (__GLIBC_MINOR__ >= 1) && !defined(__USE_GNU)
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#define __USE_GNU
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#endif
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#include <dlfcn.h>
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#endif
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#ifdef HAVE_LIBDL
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#include <dlfcn.h>
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#endif
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#if defined(XP_MAC) && !TARGET_CARBON
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#include "macstdlibextras.h"
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#endif
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////////////////////////////////////////////////////////////////////////////////
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NS_COM void
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NS_MeanAndStdDev(double n, double sumOfValues, double sumOfSquaredValues,
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double *meanResult, double *stdDevResult)
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{
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double mean = 0.0, var = 0.0, stdDev = 0.0;
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if (n > 0.0 && sumOfValues >= 0) {
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mean = sumOfValues / n;
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double temp = (n * sumOfSquaredValues) - (sumOfValues * sumOfValues);
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if (temp < 0.0 || n <= 1)
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var = 0.0;
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else
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var = temp / (n * (n - 1));
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// for some reason, Windows says sqrt(0.0) is "-1.#J" (?!) so do this:
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stdDev = var != 0.0 ? sqrt(var) : 0.0;
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}
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*meanResult = mean;
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*stdDevResult = stdDev;
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}
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////////////////////////////////////////////////////////////////////////////////
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#ifdef NS_BUILD_REFCNT_LOGGING
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#include "plhash.h"
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#include "prmem.h"
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#include "prlock.h"
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static PRLock* gTraceLock;
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#define LOCK_TRACELOG() PR_Lock(gTraceLock)
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#define UNLOCK_TRACELOG() PR_Unlock(gTraceLock)
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static PLHashTable* gBloatView;
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static PLHashTable* gTypesToLog;
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static PLHashTable* gObjectsToLog;
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static PLHashTable* gSerialNumbers;
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static PRInt32 gNextSerialNumber;
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static PRBool gLogging;
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static PRBool gLogToLeaky;
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static PRBool gLogLeaksOnly;
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static void (*leakyLogAddRef)(void* p, int oldrc, int newrc);
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static void (*leakyLogRelease)(void* p, int oldrc, int newrc);
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static PRBool gInitialized = PR_FALSE;
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static FILE *gBloatLog = nsnull;
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static FILE *gRefcntsLog = nsnull;
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static FILE *gAllocLog = nsnull;
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static FILE *gLeakyLog = nsnull;
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static FILE *gCOMPtrLog = nsnull;
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static PRBool gActivityIsLegal = PR_FALSE;
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struct serialNumberRecord {
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PRInt32 serialNumber;
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PRInt32 refCount;
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PRInt32 COMPtrCount;
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};
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struct nsTraceRefcntStats {
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nsrefcnt mAddRefs;
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nsrefcnt mReleases;
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nsrefcnt mCreates;
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nsrefcnt mDestroys;
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double mRefsOutstandingTotal;
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double mRefsOutstandingSquared;
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double mObjsOutstandingTotal;
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double mObjsOutstandingSquared;
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};
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#ifdef DEBUG_dbaron_off
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// I hope to turn this on for everybody once we hit it a little less.
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#define ASSERT_ACTIVITY_IS_LEGAL \
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NS_WARN_IF_FALSE(gActivityIsLegal, \
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"XPCOM objects created/destroyed from static ctor/dtor")
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#else
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#define ASSERT_ACTIVITY_IS_LEGAL
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#endif
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// These functions are copied from nsprpub/lib/ds/plhash.c, with changes
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// to the functions not called Default* to free the serialNumberRecord or
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// the BloatEntry.
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static void * PR_CALLBACK
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DefaultAllocTable(void *pool, PRSize size)
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{
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#if defined(XP_MAC)
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#pragma unused (pool)
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#endif
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return PR_MALLOC(size);
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}
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static void PR_CALLBACK
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DefaultFreeTable(void *pool, void *item)
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{
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#if defined(XP_MAC)
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#pragma unused (pool)
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#endif
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PR_Free(item);
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}
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static PLHashEntry * PR_CALLBACK
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DefaultAllocEntry(void *pool, const void *key)
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{
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#if defined(XP_MAC)
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#pragma unused (pool,key)
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#endif
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return PR_NEW(PLHashEntry);
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}
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static void PR_CALLBACK
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SerialNumberFreeEntry(void *pool, PLHashEntry *he, PRUintn flag)
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{
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#if defined(XP_MAC)
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#pragma unused (pool)
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#endif
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if (flag == HT_FREE_ENTRY) {
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PR_Free(NS_REINTERPRET_CAST(serialNumberRecord*,he->value));
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PR_Free(he);
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}
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}
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static void PR_CALLBACK
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TypesToLogFreeEntry(void *pool, PLHashEntry *he, PRUintn flag)
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{
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#if defined(XP_MAC)
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#pragma unused (pool)
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#endif
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if (flag == HT_FREE_ENTRY) {
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nsCRT::free(NS_CONST_CAST(char*,
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NS_REINTERPRET_CAST(const char*, he->key)));
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PR_Free(he);
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}
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}
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static const PLHashAllocOps serialNumberHashAllocOps = {
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DefaultAllocTable, DefaultFreeTable,
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DefaultAllocEntry, SerialNumberFreeEntry
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};
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static const PLHashAllocOps typesToLogHashAllocOps = {
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DefaultAllocTable, DefaultFreeTable,
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DefaultAllocEntry, TypesToLogFreeEntry
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};
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////////////////////////////////////////////////////////////////////////////////
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class BloatEntry {
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public:
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BloatEntry(const char* className, PRUint32 classSize)
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: mClassSize(classSize) {
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mClassName = PL_strdup(className);
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Clear(&mNewStats);
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Clear(&mAllStats);
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mTotalLeaked = 0;
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}
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~BloatEntry() {
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PL_strfree(mClassName);
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}
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PRUint32 GetClassSize() { return (PRUint32)mClassSize; }
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const char* GetClassName() { return mClassName; }
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static void Clear(nsTraceRefcntStats* stats) {
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stats->mAddRefs = 0;
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stats->mReleases = 0;
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stats->mCreates = 0;
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stats->mDestroys = 0;
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stats->mRefsOutstandingTotal = 0;
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stats->mRefsOutstandingSquared = 0;
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stats->mObjsOutstandingTotal = 0;
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stats->mObjsOutstandingSquared = 0;
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}
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void Accumulate() {
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mAllStats.mAddRefs += mNewStats.mAddRefs;
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mAllStats.mReleases += mNewStats.mReleases;
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mAllStats.mCreates += mNewStats.mCreates;
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mAllStats.mDestroys += mNewStats.mDestroys;
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mAllStats.mRefsOutstandingTotal += mNewStats.mRefsOutstandingTotal;
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mAllStats.mRefsOutstandingSquared += mNewStats.mRefsOutstandingSquared;
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mAllStats.mObjsOutstandingTotal += mNewStats.mObjsOutstandingTotal;
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mAllStats.mObjsOutstandingSquared += mNewStats.mObjsOutstandingSquared;
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Clear(&mNewStats);
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}
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void AddRef(nsrefcnt refcnt) {
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mNewStats.mAddRefs++;
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if (refcnt == 1) {
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Ctor();
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}
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AccountRefs();
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}
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void Release(nsrefcnt refcnt) {
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mNewStats.mReleases++;
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if (refcnt == 0) {
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Dtor();
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}
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AccountRefs();
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}
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void Ctor() {
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mNewStats.mCreates++;
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AccountObjs();
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}
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void Dtor() {
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mNewStats.mDestroys++;
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AccountObjs();
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}
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void AccountRefs() {
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PRInt32 cnt = (mNewStats.mAddRefs - mNewStats.mReleases);
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mNewStats.mRefsOutstandingTotal += cnt;
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mNewStats.mRefsOutstandingSquared += cnt * cnt;
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}
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void AccountObjs() {
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PRInt32 cnt = (mNewStats.mCreates - mNewStats.mDestroys);
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mNewStats.mObjsOutstandingTotal += cnt;
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mNewStats.mObjsOutstandingSquared += cnt * cnt;
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}
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static PRIntn PR_CALLBACK DumpEntry(PLHashEntry *he, PRIntn i, void *arg) {
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BloatEntry* entry = (BloatEntry*)he->value;
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if (entry) {
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entry->Accumulate();
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NS_STATIC_CAST(nsVoidArray*, arg)->AppendElement(entry);
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}
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return HT_ENUMERATE_NEXT;
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}
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static PRIntn PR_CALLBACK TotalEntries(PLHashEntry *he, PRIntn i, void *arg) {
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BloatEntry* entry = (BloatEntry*)he->value;
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if (entry && nsCRT::strcmp(entry->mClassName, "TOTAL") != 0) {
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entry->Total((BloatEntry*)arg);
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}
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return HT_ENUMERATE_NEXT;
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}
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void Total(BloatEntry* total) {
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total->mAllStats.mAddRefs += mNewStats.mAddRefs + mAllStats.mAddRefs;
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total->mAllStats.mReleases += mNewStats.mReleases + mAllStats.mReleases;
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total->mAllStats.mCreates += mNewStats.mCreates + mAllStats.mCreates;
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total->mAllStats.mDestroys += mNewStats.mDestroys + mAllStats.mDestroys;
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total->mAllStats.mRefsOutstandingTotal += mNewStats.mRefsOutstandingTotal + mAllStats.mRefsOutstandingTotal;
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total->mAllStats.mRefsOutstandingSquared += mNewStats.mRefsOutstandingSquared + mAllStats.mRefsOutstandingSquared;
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total->mAllStats.mObjsOutstandingTotal += mNewStats.mObjsOutstandingTotal + mAllStats.mObjsOutstandingTotal;
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total->mAllStats.mObjsOutstandingSquared += mNewStats.mObjsOutstandingSquared + mAllStats.mObjsOutstandingSquared;
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PRInt32 count = (mNewStats.mCreates + mAllStats.mCreates);
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total->mClassSize += mClassSize * count; // adjust for average in DumpTotal
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total->mTotalLeaked += (PRInt32)(mClassSize *
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((mNewStats.mCreates + mAllStats.mCreates)
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-(mNewStats.mDestroys + mAllStats.mDestroys)));
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}
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nsresult DumpTotal(PRUint32 nClasses, FILE* out) {
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mClassSize /= mAllStats.mCreates;
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return Dump(-1, out, nsTraceRefcntImpl::ALL_STATS);
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}
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static PRBool HaveLeaks(nsTraceRefcntStats* stats) {
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return ((stats->mAddRefs != stats->mReleases) ||
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(stats->mCreates != stats->mDestroys));
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}
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static nsresult PrintDumpHeader(FILE* out, const char* msg) {
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fprintf(out, "\n== BloatView: %s\n\n", msg);
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fprintf(out,
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" |<----------------Class--------------->|<-----Bytes------>|<----------------Objects---------------->|<--------------References-------------->|\n");
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fprintf(out,
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" Per-Inst Leaked Total Rem Mean StdDev Total Rem Mean StdDev\n");
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return NS_OK;
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}
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nsresult Dump(PRIntn i, FILE* out, nsTraceRefcntImpl::StatisticsType type) {
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nsTraceRefcntStats* stats = (type == nsTraceRefcntImpl::NEW_STATS) ? &mNewStats : &mAllStats;
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if (gLogLeaksOnly && !HaveLeaks(stats)) {
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return NS_OK;
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}
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double meanRefs, stddevRefs;
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NS_MeanAndStdDev(stats->mAddRefs + stats->mReleases,
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stats->mRefsOutstandingTotal,
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stats->mRefsOutstandingSquared,
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&meanRefs, &stddevRefs);
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double meanObjs, stddevObjs;
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NS_MeanAndStdDev(stats->mCreates + stats->mDestroys,
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stats->mObjsOutstandingTotal,
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stats->mObjsOutstandingSquared,
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&meanObjs, &stddevObjs);
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if ((stats->mAddRefs - stats->mReleases) != 0 ||
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stats->mAddRefs != 0 ||
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meanRefs != 0 ||
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stddevRefs != 0 ||
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(stats->mCreates - stats->mDestroys) != 0 ||
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stats->mCreates != 0 ||
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meanObjs != 0 ||
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stddevObjs != 0) {
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fprintf(out, "%4d %-40.40s %8d %8d %8d %8d (%8.2f +/- %8.2f) %8d %8d (%8.2f +/- %8.2f)\n",
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i+1, mClassName,
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(PRInt32)mClassSize,
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(nsCRT::strcmp(mClassName, "TOTAL"))
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?(PRInt32)((stats->mCreates - stats->mDestroys) * mClassSize)
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:mTotalLeaked,
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stats->mCreates,
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(stats->mCreates - stats->mDestroys),
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meanObjs,
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stddevObjs,
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stats->mAddRefs,
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(stats->mAddRefs - stats->mReleases),
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meanRefs,
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stddevRefs);
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}
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return NS_OK;
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}
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protected:
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char* mClassName;
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double mClassSize; // this is stored as a double because of the way we compute the avg class size for total bloat
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PRInt32 mTotalLeaked; // used only for TOTAL entry
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nsTraceRefcntStats mNewStats;
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nsTraceRefcntStats mAllStats;
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};
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static void PR_CALLBACK
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BloatViewFreeEntry(void *pool, PLHashEntry *he, PRUintn flag)
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{
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#if defined(XP_MAC)
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#pragma unused (pool)
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#endif
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if (flag == HT_FREE_ENTRY) {
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BloatEntry* entry = NS_REINTERPRET_CAST(BloatEntry*,he->value);
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delete entry;
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PR_Free(he);
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}
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}
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const static PLHashAllocOps bloatViewHashAllocOps = {
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DefaultAllocTable, DefaultFreeTable,
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DefaultAllocEntry, BloatViewFreeEntry
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};
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static void
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RecreateBloatView()
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{
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gBloatView = PL_NewHashTable(256,
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PL_HashString,
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PL_CompareStrings,
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PL_CompareValues,
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&bloatViewHashAllocOps, NULL);
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}
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static BloatEntry*
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GetBloatEntry(const char* aTypeName, PRUint32 aInstanceSize)
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{
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if (!gBloatView) {
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RecreateBloatView();
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}
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BloatEntry* entry = NULL;
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if (gBloatView) {
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entry = (BloatEntry*)PL_HashTableLookup(gBloatView, aTypeName);
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if (entry == NULL && aInstanceSize > 0) {
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entry = new BloatEntry(aTypeName, aInstanceSize);
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PLHashEntry* e = PL_HashTableAdd(gBloatView, aTypeName, entry);
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if (e == NULL) {
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delete entry;
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entry = NULL;
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}
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} else {
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NS_ASSERTION(aInstanceSize == 0 ||
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entry->GetClassSize() == aInstanceSize,
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"bad size recorded");
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}
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}
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return entry;
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}
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static PRIntn PR_CALLBACK DumpSerialNumbers(PLHashEntry* aHashEntry, PRIntn aIndex, void* aClosure)
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{
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serialNumberRecord* record = NS_REINTERPRET_CAST(serialNumberRecord *,aHashEntry->value);
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#ifdef HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR
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fprintf((FILE*) aClosure, "%d (%d references; %d from COMPtrs)\n",
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record->serialNumber,
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record->refCount,
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record->COMPtrCount);
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#else
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fprintf((FILE*) aClosure, "%d (%d references)\n",
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record->serialNumber,
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record->refCount);
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#endif
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return HT_ENUMERATE_NEXT;
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}
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#endif /* NS_BUILD_REFCNT_LOGGING */
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nsresult
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nsTraceRefcntImpl::DumpStatistics(StatisticsType type, FILE* out)
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{
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nsresult rv = NS_OK;
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#ifdef NS_BUILD_REFCNT_LOGGING
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if (gBloatLog == nsnull || gBloatView == nsnull) {
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return NS_ERROR_FAILURE;
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}
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if (out == nsnull) {
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out = gBloatLog;
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}
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LOCK_TRACELOG();
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|
|
PRBool wasLogging = gLogging;
|
|
gLogging = PR_FALSE; // turn off logging for this method
|
|
|
|
const char* msg;
|
|
if (type == NEW_STATS) {
|
|
if (gLogLeaksOnly)
|
|
msg = "NEW (incremental) LEAK STATISTICS";
|
|
else
|
|
msg = "NEW (incremental) LEAK AND BLOAT STATISTICS";
|
|
}
|
|
else {
|
|
if (gLogLeaksOnly)
|
|
msg = "ALL (cumulative) LEAK STATISTICS";
|
|
else
|
|
msg = "ALL (cumulative) LEAK AND BLOAT STATISTICS";
|
|
}
|
|
rv = BloatEntry::PrintDumpHeader(out, msg);
|
|
if (NS_FAILED(rv)) goto done;
|
|
|
|
{
|
|
BloatEntry total("TOTAL", 0);
|
|
PL_HashTableEnumerateEntries(gBloatView, BloatEntry::TotalEntries, &total);
|
|
total.DumpTotal(gBloatView->nentries, out);
|
|
|
|
nsVoidArray entries;
|
|
PL_HashTableEnumerateEntries(gBloatView, BloatEntry::DumpEntry, &entries);
|
|
|
|
fprintf(stdout, "nsTraceRefcntImpl::DumpStatistics: %d entries\n",
|
|
entries.Count());
|
|
|
|
// Sort the entries alphabetically by classname.
|
|
PRInt32 i, j;
|
|
for (i = entries.Count() - 1; i >= 1; --i) {
|
|
for (j = i - 1; j >= 0; --j) {
|
|
BloatEntry* left = NS_STATIC_CAST(BloatEntry*, entries[i]);
|
|
BloatEntry* right = NS_STATIC_CAST(BloatEntry*, entries[j]);
|
|
|
|
if (PL_strcmp(left->GetClassName(), right->GetClassName()) < 0) {
|
|
entries.ReplaceElementAt(right, i);
|
|
entries.ReplaceElementAt(left, j);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Enumerate from back-to-front, so things come out in alpha order
|
|
for (i = 0; i < entries.Count(); ++i) {
|
|
BloatEntry* entry = NS_STATIC_CAST(BloatEntry*, entries[i]);
|
|
entry->Dump(i, out, type);
|
|
}
|
|
}
|
|
|
|
if (gSerialNumbers) {
|
|
fprintf(out, "\n\nSerial Numbers of Leaked Objects:\n");
|
|
PL_HashTableEnumerateEntries(gSerialNumbers, DumpSerialNumbers, out);
|
|
}
|
|
|
|
done:
|
|
gLogging = wasLogging;
|
|
UNLOCK_TRACELOG();
|
|
#endif
|
|
return rv;
|
|
}
|
|
|
|
void
|
|
nsTraceRefcntImpl::ResetStatistics()
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
LOCK_TRACELOG();
|
|
if (gBloatView) {
|
|
PL_HashTableDestroy(gBloatView);
|
|
gBloatView = nsnull;
|
|
}
|
|
UNLOCK_TRACELOG();
|
|
#endif
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
static PRBool LogThisType(const char* aTypeName)
|
|
{
|
|
void* he = PL_HashTableLookup(gTypesToLog, aTypeName);
|
|
return nsnull != he;
|
|
}
|
|
|
|
static PRInt32 GetSerialNumber(void* aPtr, PRBool aCreate)
|
|
{
|
|
#ifdef GC_LEAK_DETECTOR
|
|
// need to disguise this pointer, so the table won't keep the object alive.
|
|
aPtr = (void*) ~PLHashNumber(aPtr);
|
|
#endif
|
|
PLHashEntry** hep = PL_HashTableRawLookup(gSerialNumbers, PLHashNumber(NS_PTR_TO_INT32(aPtr)), aPtr);
|
|
if (hep && *hep) {
|
|
return PRInt32((NS_REINTERPRET_CAST(serialNumberRecord*,(*hep)->value))->serialNumber);
|
|
}
|
|
else if (aCreate) {
|
|
serialNumberRecord *record = PR_NEW(serialNumberRecord);
|
|
record->serialNumber = ++gNextSerialNumber;
|
|
record->refCount = 0;
|
|
record->COMPtrCount = 0;
|
|
PL_HashTableRawAdd(gSerialNumbers, hep, PLHashNumber(NS_PTR_TO_INT32(aPtr)), aPtr, NS_REINTERPRET_CAST(void*,record));
|
|
return gNextSerialNumber;
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static PRInt32* GetRefCount(void* aPtr)
|
|
{
|
|
#ifdef GC_LEAK_DETECTOR
|
|
// need to disguise this pointer, so the table won't keep the object alive.
|
|
aPtr = (void*) ~PLHashNumber(aPtr);
|
|
#endif
|
|
PLHashEntry** hep = PL_HashTableRawLookup(gSerialNumbers, PLHashNumber(NS_PTR_TO_INT32(aPtr)), aPtr);
|
|
if (hep && *hep) {
|
|
return &((NS_REINTERPRET_CAST(serialNumberRecord*,(*hep)->value))->refCount);
|
|
} else {
|
|
return nsnull;
|
|
}
|
|
}
|
|
|
|
static PRInt32* GetCOMPtrCount(void* aPtr)
|
|
{
|
|
#ifdef GC_LEAK_DETECTOR
|
|
// need to disguise this pointer, so the table won't keep the object alive.
|
|
aPtr = (void*) ~PLHashNumber(aPtr);
|
|
#endif
|
|
PLHashEntry** hep = PL_HashTableRawLookup(gSerialNumbers, PLHashNumber(NS_PTR_TO_INT32(aPtr)), aPtr);
|
|
if (hep && *hep) {
|
|
return &((NS_REINTERPRET_CAST(serialNumberRecord*,(*hep)->value))->COMPtrCount);
|
|
} else {
|
|
return nsnull;
|
|
}
|
|
}
|
|
|
|
static void RecycleSerialNumberPtr(void* aPtr)
|
|
{
|
|
#ifdef GC_LEAK_DETECTOR
|
|
// need to disguise this pointer, so the table won't keep the object alive.
|
|
aPtr = (void*) ~PLHashNumber(aPtr);
|
|
#endif
|
|
PL_HashTableRemove(gSerialNumbers, aPtr);
|
|
}
|
|
|
|
static PRBool LogThisObj(PRInt32 aSerialNumber)
|
|
{
|
|
return nsnull != PL_HashTableLookup(gObjectsToLog, (const void*)(aSerialNumber));
|
|
}
|
|
|
|
static PRBool InitLog(const char* envVar, const char* msg, FILE* *result)
|
|
{
|
|
const char* value = getenv(envVar);
|
|
if (value) {
|
|
if (nsCRT::strcmp(value, "1") == 0) {
|
|
*result = stdout;
|
|
fprintf(stdout, "### %s defined -- logging %s to stdout\n",
|
|
envVar, msg);
|
|
return PR_TRUE;
|
|
}
|
|
else if (nsCRT::strcmp(value, "2") == 0) {
|
|
*result = stderr;
|
|
fprintf(stdout, "### %s defined -- logging %s to stderr\n",
|
|
envVar, msg);
|
|
return PR_TRUE;
|
|
}
|
|
else {
|
|
FILE *stream = ::fopen(value, "w");
|
|
if (stream != NULL) {
|
|
*result = stream;
|
|
fprintf(stdout, "### %s defined -- logging %s to %s\n",
|
|
envVar, msg, value);
|
|
return PR_TRUE;
|
|
}
|
|
else {
|
|
fprintf(stdout, "### %s defined -- unable to log %s to %s\n",
|
|
envVar, msg, value);
|
|
return PR_FALSE;
|
|
}
|
|
}
|
|
}
|
|
return PR_FALSE;
|
|
}
|
|
|
|
|
|
static PLHashNumber PR_CALLBACK HashNumber(const void* aKey)
|
|
{
|
|
return PLHashNumber(NS_PTR_TO_INT32(aKey));
|
|
}
|
|
|
|
static void InitTraceLog(void)
|
|
{
|
|
if (gInitialized) return;
|
|
gInitialized = PR_TRUE;
|
|
|
|
#if defined(XP_MAC) && !TARGET_CARBON
|
|
// this can get called before Toolbox has been initialized.
|
|
InitializeMacToolbox();
|
|
#endif
|
|
|
|
PRBool defined;
|
|
defined = InitLog("XPCOM_MEM_BLOAT_LOG", "bloat/leaks", &gBloatLog);
|
|
if (!defined)
|
|
gLogLeaksOnly = InitLog("XPCOM_MEM_LEAK_LOG", "leaks", &gBloatLog);
|
|
if (defined || gLogLeaksOnly) {
|
|
RecreateBloatView();
|
|
if (!gBloatView) {
|
|
NS_WARNING("out of memory");
|
|
gBloatLog = nsnull;
|
|
gLogLeaksOnly = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
(void)InitLog("XPCOM_MEM_REFCNT_LOG", "refcounts", &gRefcntsLog);
|
|
|
|
(void)InitLog("XPCOM_MEM_ALLOC_LOG", "new/delete", &gAllocLog);
|
|
|
|
defined = InitLog("XPCOM_MEM_LEAKY_LOG", "for leaky", &gLeakyLog);
|
|
if (defined) {
|
|
gLogToLeaky = PR_TRUE;
|
|
void* p = nsnull;
|
|
void* q = nsnull;
|
|
#ifdef HAVE_LIBDL
|
|
p = dlsym(0, "__log_addref");
|
|
q = dlsym(0, "__log_release");
|
|
#endif
|
|
if (p && q) {
|
|
leakyLogAddRef = (void (*)(void*,int,int)) p;
|
|
leakyLogRelease = (void (*)(void*,int,int)) q;
|
|
}
|
|
else {
|
|
gLogToLeaky = PR_FALSE;
|
|
fprintf(stdout, "### ERROR: XPCOM_MEM_LEAKY_LOG defined, but can't locate __log_addref and __log_release symbols\n");
|
|
fflush(stdout);
|
|
}
|
|
}
|
|
|
|
const char* classes = getenv("XPCOM_MEM_LOG_CLASSES");
|
|
|
|
#ifdef HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR
|
|
if (classes) {
|
|
(void)InitLog("XPCOM_MEM_COMPTR_LOG", "nsCOMPtr", &gCOMPtrLog);
|
|
} else {
|
|
if (getenv("XPCOM_MEM_COMPTR_LOG")) {
|
|
fprintf(stdout, "### XPCOM_MEM_COMPTR_LOG defined -- but XPCOM_MEM_LOG_CLASSES is not defined\n");
|
|
}
|
|
}
|
|
#else
|
|
const char* comptr_log = getenv("XPCOM_MEM_COMPTR_LOG");
|
|
if (comptr_log) {
|
|
fprintf(stdout, "### XPCOM_MEM_COMPTR_LOG defined -- but it will not work without dynamic_cast\n");
|
|
}
|
|
#endif
|
|
|
|
if (classes) {
|
|
// if XPCOM_MEM_LOG_CLASSES was set to some value, the value is interpreted
|
|
// as a list of class names to track
|
|
gTypesToLog = PL_NewHashTable(256,
|
|
PL_HashString,
|
|
PL_CompareStrings,
|
|
PL_CompareValues,
|
|
&typesToLogHashAllocOps, NULL);
|
|
if (!gTypesToLog) {
|
|
NS_WARNING("out of memory");
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_CLASSES defined -- unable to log specific classes\n");
|
|
}
|
|
else {
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_CLASSES defined -- only logging these classes: ");
|
|
const char* cp = classes;
|
|
for (;;) {
|
|
char* cm = (char*) strchr(cp, ',');
|
|
if (cm) {
|
|
*cm = '\0';
|
|
}
|
|
PL_HashTableAdd(gTypesToLog, nsCRT::strdup(cp), (void*)1);
|
|
fprintf(stdout, "%s ", cp);
|
|
if (!cm) break;
|
|
*cm = ',';
|
|
cp = cm + 1;
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
|
|
gSerialNumbers = PL_NewHashTable(256,
|
|
HashNumber,
|
|
PL_CompareValues,
|
|
PL_CompareValues,
|
|
&serialNumberHashAllocOps, NULL);
|
|
|
|
|
|
}
|
|
|
|
const char* objects = getenv("XPCOM_MEM_LOG_OBJECTS");
|
|
if (objects) {
|
|
gObjectsToLog = PL_NewHashTable(256,
|
|
HashNumber,
|
|
PL_CompareValues,
|
|
PL_CompareValues,
|
|
NULL, NULL);
|
|
|
|
if (!gObjectsToLog) {
|
|
NS_WARNING("out of memory");
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_OBJECTS defined -- unable to log specific objects\n");
|
|
}
|
|
else if (! (gRefcntsLog || gAllocLog || gCOMPtrLog)) {
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_OBJECTS defined -- but none of XPCOM_MEM_(REFCNT|ALLOC|COMPTR)_LOG is defined\n");
|
|
}
|
|
else {
|
|
fprintf(stdout, "### XPCOM_MEM_LOG_OBJECTS defined -- only logging these objects: ");
|
|
const char* cp = objects;
|
|
for (;;) {
|
|
char* cm = (char*) strchr(cp, ',');
|
|
if (cm) {
|
|
*cm = '\0';
|
|
}
|
|
PRInt32 top = 0;
|
|
PRInt32 bottom = 0;
|
|
while (*cp) {
|
|
if (*cp == '-') {
|
|
bottom = top;
|
|
top = 0;
|
|
++cp;
|
|
}
|
|
top *= 10;
|
|
top += *cp - '0';
|
|
++cp;
|
|
}
|
|
if (!bottom) {
|
|
bottom = top;
|
|
}
|
|
for(PRInt32 serialno = bottom; serialno <= top; serialno++) {
|
|
PL_HashTableAdd(gObjectsToLog, (const void*)serialno, (void*)1);
|
|
fprintf(stdout, "%d ", serialno);
|
|
}
|
|
if (!cm) break;
|
|
*cm = ',';
|
|
cp = cm + 1;
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
}
|
|
|
|
|
|
if (gBloatLog || gRefcntsLog || gAllocLog || gLeakyLog || gCOMPtrLog) {
|
|
gLogging = PR_TRUE;
|
|
}
|
|
|
|
gTraceLock = PR_NewLock();
|
|
}
|
|
|
|
#endif
|
|
|
|
#if defined(_WIN32) && defined(_M_IX86) // WIN32 x86 stack walking code
|
|
#include "nsStackFrameWin.h"
|
|
void
|
|
nsTraceRefcntImpl::WalkTheStack(FILE* aStream)
|
|
{
|
|
DumpStackToFile(aStream);
|
|
}
|
|
|
|
// WIN32 x86 stack walking code
|
|
// i386 or PPC Linux stackwalking code or Solaris
|
|
#elif (defined(linux) && defined(__GLIBC__) && (defined(__i386) || defined(PPC))) || (defined(__sun) && (defined(__sparc) || defined(sparc) || defined(__i386) || defined(i386)))
|
|
#include "nsStackFrameUnix.h"
|
|
void
|
|
nsTraceRefcntImpl::WalkTheStack(FILE* aStream)
|
|
{
|
|
DumpStackToFile(aStream);
|
|
}
|
|
|
|
#elif defined(XP_MAC)
|
|
|
|
/**
|
|
* Stack walking code for the Mac OS.
|
|
*/
|
|
|
|
#include "gc_fragments.h"
|
|
|
|
#include <typeinfo>
|
|
|
|
extern "C" {
|
|
void MWUnmangle(const char *mangled_name, char *unmangled_name, size_t buffersize);
|
|
}
|
|
|
|
struct traceback_table {
|
|
long zero;
|
|
long magic;
|
|
long reserved;
|
|
long codeSize;
|
|
short nameLength;
|
|
char name[2];
|
|
};
|
|
|
|
static char* pc2name(long* pc, char name[], long size)
|
|
{
|
|
name[0] = '\0';
|
|
|
|
// make sure pc is instruction aligned (at least).
|
|
if (UInt32(pc) == (UInt32(pc) & 0xFFFFFFFC)) {
|
|
long instructionsToLook = 4096;
|
|
long* instruction = (long*)pc;
|
|
|
|
// look for the traceback table.
|
|
while (instructionsToLook--) {
|
|
if (instruction[0] == 0x4E800020 && instruction[1] == 0x00000000) {
|
|
traceback_table* tb = (traceback_table*)&instruction[1];
|
|
memcpy(name, tb->name + 1, --nameLength);
|
|
name[nameLength] = '\0';
|
|
break;
|
|
}
|
|
++instruction;
|
|
}
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
struct stack_frame {
|
|
stack_frame* next; // savedSP
|
|
void* savedCR;
|
|
void* savedLR;
|
|
void* reserved0;
|
|
void* reserved1;
|
|
void* savedTOC;
|
|
};
|
|
|
|
static asm stack_frame* getStackFrame()
|
|
{
|
|
mr r3, sp
|
|
blr
|
|
}
|
|
|
|
NS_COM void
|
|
nsTraceRefcntImpl::WalkTheStack(FILE* aStream)
|
|
{
|
|
stack_frame* currentFrame = getStackFrame(); // WalkTheStack's frame.
|
|
currentFrame = currentFrame->next; // WalkTheStack's caller's frame.
|
|
currentFrame = currentFrame->next; // WalkTheStack's caller's caller's frame.
|
|
|
|
while (true) {
|
|
// LR saved at 8(SP) in each frame. subtract 4 to get address of calling instruction.
|
|
void* pc = currentFrame->savedLR;
|
|
|
|
// convert PC to name, unmangle it, and generate source location, if possible.
|
|
static char symbol_name[1024], unmangled_name[1024], file_name[256]; UInt32 file_offset;
|
|
|
|
if (GC_address_to_source((char*)pc, symbol_name, file_name, &file_offset)) {
|
|
MWUnmangle(symbol_name, unmangled_name, sizeof(unmangled_name));
|
|
fprintf(aStream, "%s[%s,%ld]\n", unmangled_name, file_name, file_offset);
|
|
} else {
|
|
pc2name((long*)pc, symbol_name, sizeof(symbol_name));
|
|
MWUnmangle(symbol_name, unmangled_name, sizeof(unmangled_name));
|
|
fprintf(aStream, "%s(0x%08X)\n", unmangled_name, pc);
|
|
}
|
|
|
|
currentFrame = currentFrame->next;
|
|
// the bottom-most frame is marked as pointing to NULL, or is ODD if a 68K transition frame.
|
|
if (currentFrame == NULL || UInt32(currentFrame) & 0x1)
|
|
break;
|
|
}
|
|
}
|
|
|
|
#else // unsupported platform.
|
|
|
|
void
|
|
nsTraceRefcntImpl::WalkTheStack(FILE* aStream)
|
|
{
|
|
fprintf(aStream, "write me, dammit!\n");
|
|
}
|
|
|
|
#endif
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
// This thing is exported by libstdc++
|
|
// Yes, this is a gcc only hack
|
|
#if defined(MOZ_DEMANGLE_SYMBOLS)
|
|
#include <cxxabi.h>
|
|
#include <stdlib.h> // for free()
|
|
#endif // MOZ_DEMANGLE_SYMBOLS
|
|
|
|
NS_COM void
|
|
nsTraceRefcntImpl::DemangleSymbol(const char * aSymbol,
|
|
char * aBuffer,
|
|
int aBufLen)
|
|
{
|
|
NS_ASSERTION(nsnull != aSymbol,"null symbol");
|
|
NS_ASSERTION(nsnull != aBuffer,"null buffer");
|
|
NS_ASSERTION(aBufLen >= 32 ,"pulled 32 out of you know where");
|
|
|
|
aBuffer[0] = '\0';
|
|
|
|
#if defined(MOZ_DEMANGLE_SYMBOLS)
|
|
/* See demangle.h in the gcc source for the voodoo */
|
|
char * demangled = abi::__cxa_demangle(aSymbol,0,0,0);
|
|
|
|
if (demangled)
|
|
{
|
|
strncpy(aBuffer,demangled,aBufLen);
|
|
free(demangled);
|
|
}
|
|
#endif // MOZ_DEMANGLE_SYMBOLS
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
NS_COM void
|
|
nsTraceRefcntImpl::LoadLibrarySymbols(const char* aLibraryName,
|
|
void* aLibrayHandle)
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
#if defined(_WIN32) && defined(_M_IX86) /* Win32 x86 only */
|
|
if (!gInitialized)
|
|
InitTraceLog();
|
|
|
|
if (gAllocLog || gRefcntsLog) {
|
|
fprintf(stdout, "### Loading symbols for %s\n", aLibraryName);
|
|
fflush(stdout);
|
|
|
|
HANDLE myProcess = ::GetCurrentProcess();
|
|
BOOL ok = EnsureSymInitialized();
|
|
if (ok) {
|
|
const char* baseName = aLibraryName;
|
|
// just get the base name of the library if a full path was given:
|
|
PRInt32 len = strlen(aLibraryName);
|
|
for (PRInt32 i = len - 1; i >= 0; i--) {
|
|
if (aLibraryName[i] == '\\') {
|
|
baseName = &aLibraryName[i + 1];
|
|
break;
|
|
}
|
|
}
|
|
DWORD baseAddr = _SymLoadModule(myProcess,
|
|
NULL,
|
|
(char*)baseName,
|
|
(char*)baseName,
|
|
0,
|
|
0);
|
|
ok = (baseAddr != nsnull);
|
|
}
|
|
if (!ok) {
|
|
LPVOID lpMsgBuf;
|
|
FormatMessage(
|
|
FORMAT_MESSAGE_ALLOCATE_BUFFER |
|
|
FORMAT_MESSAGE_FROM_SYSTEM |
|
|
FORMAT_MESSAGE_IGNORE_INSERTS,
|
|
NULL,
|
|
GetLastError(),
|
|
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
|
|
(LPTSTR) &lpMsgBuf,
|
|
0,
|
|
NULL
|
|
);
|
|
fprintf(stdout, "### ERROR: LoadLibrarySymbols for %s: %s\n",
|
|
aLibraryName, lpMsgBuf);
|
|
fflush(stdout);
|
|
LocalFree( lpMsgBuf );
|
|
}
|
|
}
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// don't use the logging ones. :-)
|
|
NS_IMETHODIMP_(nsrefcnt) nsTraceRefcntImpl::AddRef(void)
|
|
{
|
|
NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt");
|
|
++mRefCnt;
|
|
return mRefCnt;
|
|
}
|
|
|
|
NS_IMETHODIMP_(nsrefcnt) nsTraceRefcntImpl::Release(void)
|
|
{
|
|
NS_PRECONDITION(0 != mRefCnt, "dup release");
|
|
--mRefCnt;
|
|
if (mRefCnt == 0) {
|
|
mRefCnt = 1; /* stabilize */
|
|
delete this;
|
|
return 0;
|
|
}
|
|
return mRefCnt;
|
|
}
|
|
|
|
NS_IMPL_QUERY_INTERFACE1(nsTraceRefcntImpl, nsITraceRefcnt)
|
|
|
|
nsTraceRefcntImpl::nsTraceRefcntImpl()
|
|
{
|
|
/* member initializers and constructor code */
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTraceRefcntImpl::LogAddRef(void* aPtr,
|
|
nsrefcnt aRefcnt,
|
|
const char* aClazz,
|
|
PRUint32 classSize)
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
ASSERT_ACTIVITY_IS_LEGAL;
|
|
if (!gInitialized)
|
|
InitTraceLog();
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
if (gBloatLog) {
|
|
BloatEntry* entry = GetBloatEntry(aClazz, classSize);
|
|
if (entry) {
|
|
entry->AddRef(aRefcnt);
|
|
}
|
|
}
|
|
|
|
// Here's the case where neither NS_NEWXPCOM nor MOZ_COUNT_CTOR were used,
|
|
// yet we still want to see creation information:
|
|
|
|
PRBool loggingThisType = (!gTypesToLog || LogThisType(aClazz));
|
|
PRInt32 serialno = 0;
|
|
if (gSerialNumbers && loggingThisType) {
|
|
serialno = GetSerialNumber(aPtr, aRefcnt == 1);
|
|
PRInt32* count = GetRefCount(aPtr);
|
|
if(count)
|
|
(*count)++;
|
|
|
|
}
|
|
|
|
PRBool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
if (aRefcnt == 1 && gAllocLog && loggingThisType && loggingThisObject) {
|
|
fprintf(gAllocLog, "\n<%s> 0x%08X %d Create\n",
|
|
aClazz, NS_PTR_TO_INT32(aPtr), serialno);
|
|
WalkTheStack(gAllocLog);
|
|
}
|
|
|
|
if (gRefcntsLog && loggingThisType && loggingThisObject) {
|
|
if (gLogToLeaky) {
|
|
(*leakyLogAddRef)(aPtr, aRefcnt - 1, aRefcnt);
|
|
}
|
|
else {
|
|
// Can't use PR_LOG(), b/c it truncates the line
|
|
fprintf(gRefcntsLog,
|
|
"\n<%s> 0x%08X %d AddRef %d\n", aClazz, NS_PTR_TO_INT32(aPtr), serialno, aRefcnt);
|
|
WalkTheStack(gRefcntsLog);
|
|
fflush(gRefcntsLog);
|
|
}
|
|
}
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTraceRefcntImpl::LogRelease(void* aPtr,
|
|
nsrefcnt aRefcnt,
|
|
const char* aClazz)
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
ASSERT_ACTIVITY_IS_LEGAL;
|
|
if (!gInitialized)
|
|
InitTraceLog();
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
if (gBloatLog) {
|
|
BloatEntry* entry = GetBloatEntry(aClazz, 0);
|
|
if (entry) {
|
|
entry->Release(aRefcnt);
|
|
}
|
|
}
|
|
|
|
PRBool loggingThisType = (!gTypesToLog || LogThisType(aClazz));
|
|
PRInt32 serialno = 0;
|
|
if (gSerialNumbers && loggingThisType) {
|
|
serialno = GetSerialNumber(aPtr, PR_FALSE);
|
|
PRInt32* count = GetRefCount(aPtr);
|
|
if(count)
|
|
(*count)--;
|
|
|
|
}
|
|
|
|
PRBool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
if (gRefcntsLog && loggingThisType && loggingThisObject) {
|
|
if (gLogToLeaky) {
|
|
(*leakyLogRelease)(aPtr, aRefcnt + 1, aRefcnt);
|
|
}
|
|
else {
|
|
// Can't use PR_LOG(), b/c it truncates the line
|
|
fprintf(gRefcntsLog,
|
|
"\n<%s> 0x%08X %d Release %d\n", aClazz, NS_PTR_TO_INT32(aPtr), serialno, aRefcnt);
|
|
WalkTheStack(gRefcntsLog);
|
|
fflush(gRefcntsLog);
|
|
}
|
|
}
|
|
|
|
// Here's the case where neither NS_DELETEXPCOM nor MOZ_COUNT_DTOR were used,
|
|
// yet we still want to see deletion information:
|
|
|
|
if (aRefcnt == 0 && gAllocLog && loggingThisType && loggingThisObject) {
|
|
fprintf(gAllocLog,
|
|
"\n<%s> 0x%08X %d Destroy\n",
|
|
aClazz, NS_PTR_TO_INT32(aPtr), serialno);
|
|
WalkTheStack(gAllocLog);
|
|
}
|
|
|
|
if (aRefcnt == 0 && gSerialNumbers && loggingThisType) {
|
|
RecycleSerialNumberPtr(aPtr);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTraceRefcntImpl::LogCtor(void* aPtr,
|
|
const char* aType,
|
|
PRUint32 aInstanceSize)
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
ASSERT_ACTIVITY_IS_LEGAL;
|
|
if (!gInitialized)
|
|
InitTraceLog();
|
|
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
if (gBloatLog) {
|
|
BloatEntry* entry = GetBloatEntry(aType, aInstanceSize);
|
|
if (entry) {
|
|
entry->Ctor();
|
|
}
|
|
}
|
|
|
|
PRBool loggingThisType = (!gTypesToLog || LogThisType(aType));
|
|
PRInt32 serialno = 0;
|
|
if (gSerialNumbers && loggingThisType) {
|
|
serialno = GetSerialNumber(aPtr, PR_TRUE);
|
|
}
|
|
|
|
PRBool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
if (gAllocLog && loggingThisType && loggingThisObject) {
|
|
fprintf(gAllocLog, "\n<%s> 0x%08X %d Ctor (%d)\n",
|
|
aType, NS_PTR_TO_INT32(aPtr), serialno, aInstanceSize);
|
|
WalkTheStack(gAllocLog);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTraceRefcntImpl::LogDtor(void* aPtr,
|
|
const char* aType,
|
|
PRUint32 aInstanceSize)
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
ASSERT_ACTIVITY_IS_LEGAL;
|
|
if (!gInitialized)
|
|
InitTraceLog();
|
|
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
if (gBloatLog) {
|
|
BloatEntry* entry = GetBloatEntry(aType, aInstanceSize);
|
|
if (entry) {
|
|
entry->Dtor();
|
|
}
|
|
}
|
|
|
|
PRBool loggingThisType = (!gTypesToLog || LogThisType(aType));
|
|
PRInt32 serialno = 0;
|
|
if (gSerialNumbers && loggingThisType) {
|
|
serialno = GetSerialNumber(aPtr, PR_FALSE);
|
|
RecycleSerialNumberPtr(aPtr);
|
|
}
|
|
|
|
PRBool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
|
|
// (If we're on a losing architecture, don't do this because we'll be
|
|
// using LogDeleteXPCOM instead to get file and line numbers.)
|
|
if (gAllocLog && loggingThisType && loggingThisObject) {
|
|
fprintf(gAllocLog, "\n<%s> 0x%08X %d Dtor (%d)\n",
|
|
aType, NS_PTR_TO_INT32(aPtr), serialno, aInstanceSize);
|
|
WalkTheStack(gAllocLog);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTraceRefcntImpl::LogAddCOMPtr(void* aCOMPtr,
|
|
nsISupports* aObject)
|
|
{
|
|
#if defined(NS_BUILD_REFCNT_LOGGING) && defined(HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR)
|
|
// Get the most-derived object.
|
|
void *object = dynamic_cast<void *>(aObject);
|
|
|
|
// This is a very indirect way of finding out what the class is
|
|
// of the object being logged. If we're logging a specific type,
|
|
// then
|
|
if (!gTypesToLog || !gSerialNumbers) {
|
|
return NS_OK;
|
|
}
|
|
PRInt32 serialno = GetSerialNumber(object, PR_FALSE);
|
|
if (serialno == 0) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!gInitialized)
|
|
InitTraceLog();
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
PRInt32* count = GetCOMPtrCount(object);
|
|
if(count)
|
|
(*count)++;
|
|
|
|
PRBool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
|
|
if (gCOMPtrLog && loggingThisObject) {
|
|
fprintf(gCOMPtrLog, "\n<?> 0x%08X %d nsCOMPtrAddRef %d 0x%08X\n",
|
|
NS_PTR_TO_INT32(object), serialno, count?(*count):-1, NS_PTR_TO_INT32(aCOMPtr));
|
|
WalkTheStack(gCOMPtrLog);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsTraceRefcntImpl::LogReleaseCOMPtr(void* aCOMPtr,
|
|
nsISupports* aObject)
|
|
{
|
|
#if defined(NS_BUILD_REFCNT_LOGGING) && defined(HAVE_CPP_DYNAMIC_CAST_TO_VOID_PTR)
|
|
// Get the most-derived object.
|
|
void *object = dynamic_cast<void *>(aObject);
|
|
|
|
// This is a very indirect way of finding out what the class is
|
|
// of the object being logged. If we're logging a specific type,
|
|
// then
|
|
if (!gTypesToLog || !gSerialNumbers) {
|
|
return NS_OK;
|
|
}
|
|
PRInt32 serialno = GetSerialNumber(object, PR_FALSE);
|
|
if (serialno == 0) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!gInitialized)
|
|
InitTraceLog();
|
|
if (gLogging) {
|
|
LOCK_TRACELOG();
|
|
|
|
PRInt32* count = GetCOMPtrCount(object);
|
|
if(count)
|
|
(*count)--;
|
|
|
|
PRBool loggingThisObject = (!gObjectsToLog || LogThisObj(serialno));
|
|
|
|
if (gCOMPtrLog && loggingThisObject) {
|
|
fprintf(gCOMPtrLog, "\n<?> 0x%08X %d nsCOMPtrRelease %d 0x%08X\n",
|
|
NS_PTR_TO_INT32(object), serialno, count?(*count):-1, NS_PTR_TO_INT32(aCOMPtr));
|
|
WalkTheStack(gCOMPtrLog);
|
|
}
|
|
|
|
UNLOCK_TRACELOG();
|
|
}
|
|
#endif
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_COM void
|
|
nsTraceRefcntImpl::Startup()
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
SetActivityIsLegal(PR_TRUE);
|
|
#endif
|
|
}
|
|
|
|
NS_COM void
|
|
nsTraceRefcntImpl::Shutdown()
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
|
|
if (gBloatView) {
|
|
PL_HashTableDestroy(gBloatView);
|
|
gBloatView = nsnull;
|
|
}
|
|
if (gTypesToLog) {
|
|
PL_HashTableDestroy(gTypesToLog);
|
|
gTypesToLog = nsnull;
|
|
}
|
|
if (gObjectsToLog) {
|
|
PL_HashTableDestroy(gObjectsToLog);
|
|
gObjectsToLog = nsnull;
|
|
}
|
|
if (gSerialNumbers) {
|
|
PL_HashTableDestroy(gSerialNumbers);
|
|
gSerialNumbers = nsnull;
|
|
}
|
|
|
|
SetActivityIsLegal(PR_FALSE);
|
|
|
|
#endif
|
|
}
|
|
|
|
NS_COM void
|
|
nsTraceRefcntImpl::SetActivityIsLegal(PRBool aLegal)
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
gActivityIsLegal = aLegal;
|
|
#endif
|
|
}
|
|
|
|
|
|
NS_METHOD
|
|
nsTraceRefcntImpl::Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr)
|
|
{
|
|
*aInstancePtr = nsnull;
|
|
nsITraceRefcnt* tracer = new nsTraceRefcntImpl();
|
|
if (!tracer)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
nsresult rv = tracer->QueryInterface(aIID, aInstancePtr);
|
|
if (NS_FAILED(rv)) {
|
|
delete tracer;
|
|
}
|
|
|
|
return rv;
|
|
}
|