XPathExpression*
XPathEvaluator::CreateExpression(const nsAString& aExpression,
nsINode* aResolver, ErrorResult& aRv)
{
nsCOMPtr<nsIDocument> doc = do_QueryReferent(mDocument);
XPathEvaluatorParseContext pContext(aResolver,
!(doc && doc->IsHTMLDocument()));
return CreateExpression(aExpression, &pContext, doc, aRv);
}
int StackTrace::GetCallStack(Address* callStack, int maxDepth, int entriesToSkip)
{
PCONTEXT pContext(0);
HMODULE hKernel32Dll = GetModuleHandle("kernel32.dll");
void (WINAPI *pRtlCaptureContext)(PCONTEXT);
*(void**)&pRtlCaptureContext = GetProcAddress(hKernel32Dll, "RtlCaptureContext");
CONTEXT context;
if (pRtlCaptureContext)
{
memset(&context, 0, sizeof(context));
context.ContextFlags = CONTEXT_FULL;
pRtlCaptureContext(&context);
pContext = &context;
}
// +1 -> skip over "us"
return GetCallStack(pContext, callStack, maxDepth, entriesToSkip + 1);
}
nsresult
nsXPathEvaluator::CreateExpression(const nsAString & aExpression,
nsIDOMXPathNSResolver *aResolver,
nsTArray<int32_t> *aNamespaceIDs,
nsTArray<nsCString> *aContractIDs,
nsCOMArray<nsISupports> *aState,
nsIDOMXPathExpression **aResult)
{
nsresult rv;
if (!mRecycler) {
nsRefPtr<txResultRecycler> recycler = new txResultRecycler;
NS_ENSURE_TRUE(recycler, NS_ERROR_OUT_OF_MEMORY);
rv = recycler->init();
NS_ENSURE_SUCCESS(rv, rv);
mRecycler = recycler;
}
nsCOMPtr<nsIDocument> doc = do_QueryReferent(mDocument);
nsXPathEvaluatorParseContext pContext(aResolver, aNamespaceIDs,
aContractIDs, aState,
!(doc && doc->IsHTML()));
nsAutoPtr<Expr> expression;
rv = txExprParser::createExpr(PromiseFlatString(aExpression), &pContext,
getter_Transfers(expression));
if (NS_FAILED(rv)) {
if (rv == NS_ERROR_DOM_NAMESPACE_ERR) {
return NS_ERROR_DOM_NAMESPACE_ERR;
}
return NS_ERROR_DOM_INVALID_EXPRESSION_ERR;
}
nsCOMPtr<nsIDOMDocument> document = do_QueryReferent(mDocument);
*aResult = new nsXPathExpression(expression, mRecycler, document);
if (!*aResult) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(*aResult);
return NS_OK;
}
NS_IMETHODIMP
nsXPathEvaluator::CreateExpression(const nsAString & aExpression,
nsIDOMXPathNSResolver *aResolver,
nsIDOMXPathExpression **aResult)
{
nsresult rv = NS_OK;
if (!mRecycler) {
nsRefPtr<txResultRecycler> recycler = new txResultRecycler;
NS_ENSURE_TRUE(recycler, NS_ERROR_OUT_OF_MEMORY);
rv = recycler->init();
NS_ENSURE_SUCCESS(rv, rv);
mRecycler = recycler;
}
nsCOMPtr<nsIDocument> doc = do_QueryReferent(mDocument);
ParseContextImpl pContext(aResolver, !doc || doc->IsCaseSensitive());
nsAutoPtr<Expr> expression;
rv = txExprParser::createExpr(PromiseFlatString(aExpression), &pContext,
getter_Transfers(expression));
if (NS_FAILED(rv)) {
if (rv == NS_ERROR_DOM_NAMESPACE_ERR) {
return NS_ERROR_DOM_NAMESPACE_ERR;
}
return NS_ERROR_DOM_INVALID_EXPRESSION_ERR;
}
*aResult = new nsXPathExpression(expression, mRecycler);
if (!*aResult) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(*aResult);
return NS_OK;
}
EXPORT_C void CMemSpyEngineHelperHeap::OutputCellListingUserL( const CMemSpyThread& aThread )
{
// Suspend the process
iEngine.ProcessSuspendLC( aThread.Process().Id() );
// Free cells
RArray<TMemSpyDriverFreeCell> freeCells;
CleanupClosePushL( freeCells );
// Info section
TMemSpyHeapInfo heapInfo;
const TInt error = iEngine.Driver().GetHeapInfoUser( heapInfo, aThread.Id(), freeCells );
if ( error == KErrNone )
{
UpdateSharedHeapInfoL( aThread.Process().Id(), aThread.Id(), heapInfo );
}
if ( error == KErrNone && heapInfo.Type() != TMemSpyHeapInfo::ETypeUnknown )
{
// Get thread name for context
const TFullName pName( aThread.FullName() );
// Begin a new data stream
_LIT( KMemSpyFolder, "Heap\\Cell List" );
_LIT( KMemSpyContext, "Cell List - %S" );
HBufC* context = HBufC::NewLC( KMaxFileName );
TPtr pContext( context->Des() );
pContext.Format( KMemSpyContext, &pName );
iEngine.Sink().DataStreamBeginL( pContext, KMemSpyFolder );
CleanupStack::PopAndDestroy( context );
// Set prefix for overall listing
iEngine.Sink().OutputPrefixSetFormattedLC( KMemSpyPrefixCellList, &pName );
// Start new section
_LIT(KHeader, "CELL LISTING");
iEngine.Sink().OutputSectionHeadingL( KHeader, '=' );
// Prepare temp buffers
TBuf<KMaxFullName + 100> printFormat;
HBufC* tempBuffer = HBufC::NewLC( 2048 );
TPtr pTempBuffer( tempBuffer->Des() );
// Print initial info
OutputHeapInfoL( heapInfo, pName, &freeCells );
// Code segments (needed for map file reading...)
_LIT(KCellListCodeSegInfoFormat, "CodeSegs - ");
iEngine.HelperCodeSegment().OutputCodeSegmentsL( aThread.Process().Id(), printFormat, KCellListCodeSegInfoFormat, '-', ETrue );
// Now walk the heap!
TInt r = iEngine.Driver().WalkHeapInit( aThread.Id() );
if ( r == KErrNone )
{
_LIT(KHeader2, "Cells");
iEngine.Sink().OutputSectionHeadingL( KHeader2, '-' );
TMemSpyDriverCellType cellType;
TAny* cellAddress;
TInt cellLength;
TInt cellNestingLevel;
TInt cellAllocationNumber;
TInt cellHeaderSize;
TAny* cellPayloadAddress;
TBuf8<4> cellData;
//
r = iEngine.Driver().WalkHeapNextCell( aThread.Id(), cellType, cellAddress, cellLength, cellNestingLevel, cellAllocationNumber, cellHeaderSize, cellPayloadAddress );
while( r == KErrNone )
{
TUint fourByteCellData = 0;
TPtrC pType(KNullDesC);
//
if (cellType & EMemSpyDriverAllocatedCellMask)
{
r = iEngine.Driver().WalkHeapReadCellData( cellAddress, cellData, 4 );
if ( r == KErrNone )
{
fourByteCellData = DescriptorAsDWORD( cellData );
}
pType.Set(KCellTypeGoodAllocatedCell);
}
else if (cellType & EMemSpyDriverFreeCellMask)
{
pType.Set(KCellTypeGoodFreeCell);
}
else if (cellType & EMemSpyDriverBadCellMask)
{
switch (cellType)
{
case EMemSpyDriverHeapBadAllocatedCellSize:
pType.Set(KCellTypeBadAllocatedCellSize);
break;
case EMemSpyDriverHeapBadAllocatedCellAddress:
pType.Set(KCellTypeBadAllocatedCellAddress);
break;
case EMemSpyDriverHeapBadFreeCellAddress:
pType.Set(KCellTypeBadFreeCellAddress);
break;
case EMemSpyDriverHeapBadFreeCellSize:
pType.Set(KCellTypeBadFreeCellSize);
break;
default:
pType.Set(KCellTypeBad);
break;
}
}
else
{
pType.Set(KCellTypeUnknown);
}
if ( r == KErrNone )
{
pTempBuffer.Format( KCellListLineFormat, &pType, cellAddress, cellLength, cellAllocationNumber, cellNestingLevel, fourByteCellData, cellPayloadAddress, cellHeaderSize );
iEngine.Sink().OutputLineL( pTempBuffer );
//
r = iEngine.Driver().WalkHeapNextCell( aThread.Id(), cellType, cellAddress, cellLength, cellNestingLevel, cellAllocationNumber, cellHeaderSize, cellPayloadAddress );
}
}
//
iEngine.Driver().WalkHeapClose();
}
CleanupStack::PopAndDestroy( tempBuffer );
CleanupStack::PopAndDestroy(); // clear prefix
iEngine.Sink().DataStreamEndL();
}
CleanupStack::PopAndDestroy( &freeCells );
CleanupStack::PopAndDestroy(); // resume process
}
void CMemSpyEngineHelperHeap::OutputHeapDataKernelL(const TMemSpyHeapInfo& aHeapInfo,
TBool aCreateDataStream,
const RArray<TMemSpyDriverCell>* aCells)
{
TFullName threadName;
MemSpyEngineUtils::GetKernelHeapThreadName( threadName, EFalse );
// Begin a new data stream
if ( aCreateDataStream )
{
_LIT( KMemSpyFolder, "Heap\\Data" );
_LIT( KMemSpyContext, "Heap Data - %S" );
HBufC* context = HBufC::NewLC( KMaxFileName );
TPtr pContext( context->Des() );
pContext.Format( KMemSpyContext, &threadName );
iEngine.Sink().DataStreamBeginL( pContext, KMemSpyFolder );
CleanupStack::PopAndDestroy( context );
}
TBuf<KMaxFullName + 100> printFormat;
// Start marker
iEngine.Sink().OutputLineFormattedL( KMemSpyMarkerHeapData, &KNullDesC, aHeapInfo.Tid() );
// Set overall prefix
iEngine.Sink().OutputPrefixSetFormattedLC( KMemSpyPrefixHeapData, &threadName );
// Info section
OutputHeapInfoL( aHeapInfo, threadName, aCells );
// Code segments (needed for map file reading...)
_LIT(KCellListCodeSegInfoFormat, "CodeSegs - ");
iEngine.HelperCodeSegment().OutputCodeSegmentsL( aHeapInfo.Pid(), printFormat, KCellListCodeSegInfoFormat, '-', ETrue );
// Dump section
_LIT(KHeaderDump, "Heap Data");
iEngine.Sink().OutputSectionHeadingL( KHeaderDump, '-' );
HBufC8* data = HBufC8::NewLC( 4096 * 12 );
TPtr8 pData(data->Des());
TUint remaining = 0;
TUint readAddress = 0;
TInt r = iEngine.Driver().GetHeapDataKernel(aHeapInfo.Tid(), pData, readAddress, remaining);
TUint prevEndAddress = readAddress + pData.Length();
if (r == KErrNone)
{
while (r == KErrNone)
{
if (readAddress > prevEndAddress)
{
// We've hit a discontinuity, ie one or more unmapped pages
_LIT(KBreak, "........");
iEngine.Sink().OutputLineL(KBreak);
}
_LIT(KHeapDumpDataFormat, "%S");
iEngine.Sink().OutputBinaryDataL(KHeapDumpDataFormat, pData.Ptr(), (const TUint8*) readAddress, pData.Length());
readAddress += pData.Length();
if (remaining > 0)
{
prevEndAddress = readAddress;
r = iEngine.Driver().GetHeapDataKernelNext(aHeapInfo.Tid(), pData, readAddress, remaining);
}
else
break;
}
}
else
{
_LIT( KHeapFetchError, "Heap error: %d");
iEngine.Sink().OutputLineFormattedL( KHeapFetchError, r );
}
CleanupStack::PopAndDestroy( data );
CleanupStack::PopAndDestroy(); // clear prefix
// End marker
iEngine.Sink().OutputLineFormattedL( KMemSpyMarkerHeapData, &KMemSpySinkTagClose, aHeapInfo.Tid() );
if ( aCreateDataStream )
{
iEngine.Sink().DataStreamEndL();
}
}
void CMemSpyEngineHelperHeap::OutputHeapDataUserL(const TProcessId& aPid,
const TThreadId& aTid,
const TDesC& aThreadName,
const TMemSpyHeapInfo& aInfo,
TBool aCreateDataStream,
const RArray<TMemSpyDriverCell>* aCells )
{
TBuf<KMaxFullName + 100> printFormat;
// Begin a new data stream
if ( aCreateDataStream )
{
_LIT( KMemSpyFolder, "Heap\\Data" );
_LIT( KMemSpyContext, "Heap Data - %S" );
HBufC* context = HBufC::NewLC( KMaxFileName );
TPtr pContext( context->Des() );
pContext.Format( KMemSpyContext, &aThreadName );
iEngine.Sink().DataStreamBeginL( pContext, KMemSpyFolder );
CleanupStack::PopAndDestroy( context );
}
// Get the heap info first of all
iEngine.ProcessSuspendLC( aPid );
// Start marker
iEngine.Sink().OutputLineFormattedL( KMemSpyMarkerHeapData, &KNullDesC, (TUint) aTid );
// Set overall prefix
iEngine.Sink().OutputPrefixSetFormattedLC( KMemSpyPrefixHeapData, &aThreadName );
// Info section
OutputHeapInfoL( aInfo, aThreadName, aCells );
// Code segments (needed for map file reading...)
_LIT(KCellListCodeSegInfoFormat, "CodeSegs - ");
iEngine.HelperCodeSegment().OutputCodeSegmentsL( aPid, printFormat, KCellListCodeSegInfoFormat, '-', ETrue );
// Dump section
_LIT(KHeaderDump, "Heap Data");
iEngine.Sink().OutputSectionHeadingL( KHeaderDump, '-' );
HBufC8* data = HBufC8::NewLC( 4096 * 12 );
TPtr8 pData(data->Des());
TUint remaining = 0;
TUint readAddress = 0;
// When we obtained the heap info, we also obtained a checksum of all the free cells
// within the specified heap. We validate that this hasn't changed at the time we
// request the heap data for paranoia purposes (There have been "Issues" with MemSpy
// not actually suspending a process between fetching heap info & heap data, causing
// a mismatch in free cell information).
const TUint32 checksum = aInfo.AsRHeap().Statistics().StatsFree().Checksum();
TRACE( RDebug::Printf( "CMemSpyEngineHelperHeap::OutputHeapDataUserL() - checksum: 0x%08x", checksum ) );
TInt r = iEngine.Driver().GetHeapData( aTid, checksum, pData, readAddress, remaining );
TUint prevEndAddress = readAddress + pData.Length();
if (r == KErrNone)
{
while (r == KErrNone)
{
if (readAddress > prevEndAddress)
{
// We've hit a discontinuity, ie one or more unmapped pages
_LIT(KBreak, "........");
iEngine.Sink().OutputLineL(KBreak);
}
_LIT(KHeapDumpDataFormat, "%S");
iEngine.Sink().OutputBinaryDataL(KHeapDumpDataFormat, pData.Ptr(), (const TUint8*) readAddress, pData.Length());
readAddress += pData.Length();
if (remaining > 0)
{
prevEndAddress = readAddress;
r = iEngine.Driver().GetHeapDataNext(aTid, pData, readAddress, remaining);
}
else
break;
}
}
else
{
_LIT( KHeapFetchError, "Heap error: %d");
iEngine.Sink().OutputLineFormattedL( KHeapFetchError, r );
}
CleanupStack::PopAndDestroy( data );
CleanupStack::PopAndDestroy(); // clear prefix
CleanupStack::PopAndDestroy(); // resume process
// End marker
iEngine.Sink().OutputLineFormattedL( KMemSpyMarkerHeapData, &KMemSpySinkTagClose, (TUint) aTid );
if ( aCreateDataStream )
{
iEngine.Sink().DataStreamEndL();
}
}