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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
**************************************************************************/
#include "cdbsymbolgroupcontext.h"
#include "cdbdebugengine_p.h"
#include "watchhandler.h"
// A helper function to extract a string value from a member function of
// IDebugSymbolGroup2 taking the symbol index and a character buffer.
// Pass in the the member function as '&IDebugSymbolGroup2::GetSymbolNameWide'
typedef HRESULT (__stdcall IDebugSymbolGroup2::*WideStringRetrievalFunction)(ULONG, PWSTR, ULONG, PULONG);
static inline QString getSymbolString(IDebugSymbolGroup2 *sg,
WideStringRetrievalFunction wsf,
unsigned long index)
{
static WCHAR nameBuffer[MAX_PATH + 1];
// Name
ULONG nameLength;
const HRESULT hr = (sg->*wsf)(index, nameBuffer, MAX_PATH, &nameLength);
if (SUCCEEDED(hr)) {
nameBuffer[nameLength] = 0;
return QString::fromUtf16(nameBuffer);
}
return QString();
}
namespace Debugger {
namespace Internal {
CdbSymbolGroupContext::CdbSymbolGroupContext(const QString &prefix,
IDebugSymbolGroup2 *symbolGroup) :
m_prefix(prefix),
m_nameDelimiter(QLatin1Char('.')),
m_symbolGroup(symbolGroup)
{
}
CdbSymbolGroupContext::~CdbSymbolGroupContext()
{
m_symbolGroup->Release();
}
CdbSymbolGroupContext::Range
CdbSymbolGroupContext::getSymbolRange(const QString &prefix)
{
if (debugCDB)
qDebug() << Q_FUNC_INFO << prefix;
const ChildRangeMap::const_iterator it = m_childRanges.constFind(prefix);
if (it != m_childRanges.constEnd())
return it.value();
const Range r = prefix == m_prefix ? allocateRootSymbols() : allocateChildSymbols(prefix);
m_childRanges.insert(prefix, r);
return r;
}
CdbSymbolGroupContext::Range
CdbSymbolGroupContext::allocateChildSymbols(const QString &prefix)
{
unsigned long startPos = 0;
unsigned long count = 0;
bool success = false;
QString errorMessage;
do {
const int parentIndex = m_symbolINames.indexOf(prefix);
if (parentIndex == -1) {
errorMessage = QString::fromLatin1("Prefix not found '%1'").arg(prefix);
break;
}
success = true;
} while (false);
if (!success) {
qWarning("%s\n", qPrintable(errorMessage));
}
return Range(startPos, count);
}
CdbSymbolGroupContext::Range
CdbSymbolGroupContext::allocateRootSymbols()
{
unsigned long startPos = 0;
unsigned long count = 0;
bool success = false;
QString errorMessage;
do {
HRESULT hr = m_symbolGroup->GetNumberSymbols(&count);
if (FAILED(hr)) {
errorMessage = msgComFailed("GetNumberSymbols", hr);
break;
}
m_symbolParameters.reserve(3u * count);
m_symbolParameters.resize(count);
hr = m_symbolGroup->GetSymbolParameters(0, count, symbolParameters());
if (FAILED(hr)) {
errorMessage = msgComFailed("GetSymbolParameters", hr);
break;
}
const QString symbolPrefix = m_prefix + m_nameDelimiter;
for (unsigned long i = 0; i < count; i++)
m_symbolINames.push_back(symbolPrefix + getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolNameWide, i));
success = true;
} while (false);
if (!success) {
clear();
count = 0;
qWarning("%s\n", qPrintable(errorMessage));
}
return Range(startPos, count);
}
void CdbSymbolGroupContext::clear()
{
m_symbolParameters.clear();
m_childRanges.clear();
m_symbolINames.clear();
}
WatchData CdbSymbolGroupContext::symbolAt(unsigned long index) const
{
if (debugCDB)
qDebug() << Q_FUNC_INFO << index;
WatchData wd;
wd.iname = m_symbolINames.at(index);
const int lastDelimiterPos = wd.iname.lastIndexOf(m_nameDelimiter);
wd.name = lastDelimiterPos == -1 ? wd.iname : wd.iname.mid(lastDelimiterPos + 1);
wd.type = getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolTypeNameWide, index);
wd.value = getSymbolString(m_symbolGroup, &IDebugSymbolGroup2::GetSymbolValueTextWide, index);
const DEBUG_SYMBOL_PARAMETERS ¶ms = m_symbolParameters.at(index);
if (params.SubElements) {
wd.setTypeUnneeded();
wd.setValueUnneeded();
wd.setChildCount(1);
} else {
wd.setAllUnneeded();
}
if (debugCDB) {
qDebug() << Q_FUNC_INFO << wd.toString();
}
return wd;
}
}
}
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