1 files changed, 159 insertions, 0 deletions
diff --git a/src/tools/valgrindfake/outputgenerator.cpp b/src/tools/valgrindfake/outputgenerator.cpp
new file mode 100644
index 0000000000..2a6225a8bb
--- /dev/null
+++ b/src/tools/valgrindfake/outputgenerator.cpp
@@ -0,0 +1,159 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Author: Milian Wolff, KDAB (milian.wolff@kdab.com)
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** No Commercial Usage
+**
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#include "outputgenerator.h"
+
+#include <QAbstractSocket>
+#include <QIODevice>
+#include <QTextStream>
+#include <QCoreApplication>
+#include <QStringList>
+#include <QDebug>
+
+using namespace Valgrind::Fake;
+
+OutputGenerator::OutputGenerator(QAbstractSocket *output, QIODevice *input) :
+    m_output(output),
+    m_input(input),
+    m_finished(false),
+    m_crash(false),
+    m_garbage(false),
+    m_wait(0)
+{
+    Q_ASSERT(input->isOpen());
+    Q_ASSERT(input->isReadable());
+
+    m_timer.setSingleShot(true);
+    m_timer.start();
+
+    connect(&m_timer, SIGNAL(timeout()),
+            this, SLOT(writeOutput()));
+}
+
+void OutputGenerator::setCrashRandomly(bool enable)
+{
+    m_crash = enable;
+}
+
+void OutputGenerator::setOutputGarbage(bool enable)
+{
+    m_garbage = enable;
+}
+
+void OutputGenerator::setWait(uint seconds)
+{
+    m_wait = seconds;
+}
+
+#include <iostream>
+
+static bool blockingWrite(QIODevice *dev, const QByteArray &ba)
+{
+    const qint64 toWrite = ba.size();
+    qint64 written = 0;
+    while (written < ba.size()) {
+        const qint64 n = dev->write(ba.constData() + written, toWrite - written);
+        if (n < 0)
+            return false;
+        written += n;
+    }
+
+    return true;
+}
+
+void OutputGenerator::produceRuntimeError()
+{
+    if (m_crash) {
+        std::cerr << "Goodbye, cruel world" << std::endl;
+        int zero = 0; // hide the error at compile-time to avoid a compiler warning
+        int i = 1 / zero;
+        Q_UNUSED(i);
+        Q_ASSERT(false);
+    }
+    else if (m_garbage) {
+        std::cerr << "Writing garbage" << std::endl;
+        blockingWrite(m_output, "<</GARBAGE = '\"''asdfaqre");
+        m_output->flush();
+    } else if (m_wait) {
+        qDebug() << "waiting in fake valgrind for " << m_wait << " seconds..." << endl;
+        sleep(m_wait);
+    }
+}
+
+
+void OutputGenerator::writeOutput()
+{
+    m_timer.setInterval(qrand() % 1000);
+
+    int lines = 0;
+    while (!m_input->atEnd()) {
+        qint64 lastPos = m_input->pos();
+        QByteArray line = m_input->readLine();
+        if (lines > 0 && !m_finished && line.contains("<error>")) {
+            if ((m_crash || m_garbage || m_wait) && qrand() % 10 == 1) {
+                produceRuntimeError();
+                m_timer.start();
+                return;
+            }
+
+            m_input->seek(lastPos);
+            m_timer.start();
+            return;
+        } else {
+            if (!m_finished && line.contains("<state>FINISHED</state>")) {
+                m_finished = true;
+                if (m_crash || m_garbage || m_wait) {
+                    produceRuntimeError();
+                    m_timer.start();
+                    return;
+                }
+            }
+
+            if (!blockingWrite(m_output, line)) {
+                std::cerr << "Writing to socket failed: " << qPrintable(m_output->errorString()) << std::endl;
+                emit finished();
+                return;
+            }
+            m_output->flush();
+            ++lines;
+        }
+    }
+
+    Q_ASSERT(m_input->atEnd());
+
+    while (m_output->bytesToWrite() > 0)
+        m_output->waitForBytesWritten(-1);
+    emit finished();
+}