forked from qt-creator/qt-creator
01316c28f2
If there is a message counter mismatch it is very helpful to get message content. Change-Id: I4ea2526bd4b72010627e99de08ff9a8e64ca3d02 Reviewed-by: Tim Jenssen <tim.jenssen@theqtcompany.com>
118 lines
3.0 KiB
C++
118 lines
3.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "readmessageblock.h"
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#include "messageenvelop.h"
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#include <QDataStream>
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#include <QDebug>
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#include <QIODevice>
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#include <QVariant>
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namespace ClangBackEnd {
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ReadMessageBlock::ReadMessageBlock(QIODevice *ioDevice)
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: ioDevice(ioDevice),
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messageCounter(0),
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blockSize(0)
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{
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}
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bool ReadMessageBlock::checkIfMessageIsLost(QDataStream &in)
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{
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qint64 currentMessageCounter;
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in >> currentMessageCounter;
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bool messageIsLost = false;
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#ifndef DONT_CHECK_MESSAGE_COUNTER
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messageIsLost = !((currentMessageCounter == 0 && messageCounter == 0) || (messageCounter + 1 == currentMessageCounter));
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if (messageIsLost)
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qWarning() << "message lost: " << messageCounter << currentMessageCounter;
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#endif
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messageCounter = currentMessageCounter;
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return messageIsLost;
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}
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MessageEnvelop ReadMessageBlock::read()
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{
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QDataStream in(ioDevice);
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MessageEnvelop message;
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if (isTheWholeMessageReadable(in)) {
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bool messageIsLost = checkIfMessageIsLost(in);
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in >> message;
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if (messageIsLost)
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qDebug() << message;
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}
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return message;
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}
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QVector<MessageEnvelop> ReadMessageBlock::readAll()
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{
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QVector<MessageEnvelop> messages;
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while (true) {
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const MessageEnvelop message = read();
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if (message.isValid())
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messages.append(message);
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else
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return messages;
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}
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Q_UNREACHABLE();
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}
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void ReadMessageBlock::resetCounter()
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{
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messageCounter = 0;
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}
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bool ReadMessageBlock::isTheWholeMessageReadable(QDataStream &in)
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{
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if (ioDevice->bytesAvailable() < qint64(sizeof(blockSize)))
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return false;
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if (blockSize == 0)
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in >> blockSize;
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if (ioDevice->bytesAvailable() < blockSize)
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return false;
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blockSize = 0;
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return true;
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}
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} // namespace ClangBackEnd
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