runonphone: Implement traceswitch support for coda

The traceswitch application redirects debug messages to the USB
port. This was supported by the TRK backend but not by the CODA
backend.

1. CODA backend now recognises mux channel 2 as valid
2. new TextTraceHandler class to attach to channel 2 and decode
   trace packets / print them to stdout
3. CODA signal handler creates a TextTraceHandler & destroys it
   on shutdown

Reviewed-By: Miikka Heikkinen

1 files changed, 89 insertions, 0 deletions

diff --git a/tools/runonphone/texttracehandler.cpp b/tools/runonphone/texttracehandler.cpp
new file mode 100644
index 0000000..fff02e9
--- /dev/null
+++ b/tools/runonphone/texttracehandler.cpp
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QTextStream>
+#include "texttracehandler.h"
+#include "trkutils.h"
+
+class TextTraceHandlerPrivate
+{
+public:
+    TextTraceHandlerPrivate();
+    ~TextTraceHandlerPrivate();
+    QIODevice *device;
+    QTextStream out;
+};
+
+TextTraceHandlerPrivate::TextTraceHandlerPrivate()
+: out(stdout)
+{
+}
+
+TextTraceHandlerPrivate::~TextTraceHandlerPrivate()
+{
+    delete device;
+}
+
+TextTraceHandler::TextTraceHandler(QIODevice *device, QObject *parent)
+: QObject(parent)
+{
+    d = new TextTraceHandlerPrivate;
+    d->device = device;
+    connect(device, SIGNAL(readyRead()), this, SLOT(dataAvailable()));
+}
+
+TextTraceHandler::~TextTraceHandler()
+{
+    delete d;
+}
+
+void TextTraceHandler::dataAvailable()
+{
+    QByteArray result = d->device->readAll();
+    quint64 secs = 0;
+    quint64 ns = 0;
+    if (result.length() >= 8) {
+        quint64 timestamp = trk::extractInt64(result.constData()) & 0x0FFFFFFFFFFFFFFFULL;
+        secs = timestamp / 1000000000;
+        ns = timestamp % 1000000000;
+    }
+    d->out << QString("[%1.%2] %3").arg(secs).arg(ns).arg(QString(result.mid(8))) << endl;
+}