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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "outputcallback.h"
#include "stringutils.h"
#include "extensioncontext.h"
#include "base64.h"
#include <cstring>
/* \class OutputCallback
OutputCallback catches DEBUG_OUTPUT_DEBUGGEE and reports it
base64-encoded back to Qt Creator.
\ingroup qtcreatorcdbext
*/
OutputCallback::OutputCallback(IDebugOutputCallbacksWide *wrapped) :
m_wrapped(wrapped), m_recording(false)
{
}
OutputCallback::~OutputCallback() // must be present to avoid exit crashes
{
}
STDMETHODIMP OutputCallback::QueryInterface(
THIS_
IN REFIID InterfaceId,
OUT PVOID* Interface
)
{
*Interface = NULL;
if (IsEqualIID(InterfaceId, __uuidof(IUnknown)) ||
IsEqualIID(InterfaceId, __uuidof(IDebugOutputCallbacksWide)))
{
*Interface = (IDebugOutputCallbacksWide*)this;
AddRef();
return S_OK;
} else {
return E_NOINTERFACE;
}
}
STDMETHODIMP_(ULONG) OutputCallback::AddRef(THIS)
{
// This class is designed to be static so
// there's no true refcount.
return 1;
}
STDMETHODIMP_(ULONG) OutputCallback::Release(THIS)
{
// This class is designed to be static so
// there's no true refcount.
return 0;
}
STDMETHODIMP OutputCallback::Output(
THIS_
IN ULONG mask,
IN PCWSTR text
)
{
if (m_recording)
m_recorded.append(text);
// Do not unconditionally output ourselves here, as this causes an endless
// recursion. Suppress prompts (note that sequences of prompts may mess parsing up)
if (!m_wrapped || mask == DEBUG_OUTPUT_PROMPT)
return S_OK;
// Wrap debuggee output in gdbmi such that creator recognizes it
if (mask != DEBUG_OUTPUT_DEBUGGEE) {
m_wrapped->Output(mask, text);
return S_OK;
}
// Base encode as GDBMI is not really made for wide chars
std::ostringstream str;
base64Encode(str, reinterpret_cast<const unsigned char *>(text), sizeof(wchar_t) * std::wcslen(text));
ExtensionContext::instance().reportLong('E', 0, "debuggee_output", str.str().c_str());
return S_OK;
}
void OutputCallback::startRecording()
{
m_recorded.clear();
m_recording = true;
}
std::wstring OutputCallback::stopRecording()
{
const std::wstring rc = m_recorded;
m_recorded.clear();
m_recording = false;
return rc;
}
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