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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** 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.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at info@qt.nokia.com.
**
**************************************************************************/
#include "outputcollector.h"
#ifdef Q_OS_WIN
#include <QtNetwork/QLocalServer>
#include <QtNetwork/QLocalSocket>
#include <QtCore/QCoreApplication>
#include <stdlib.h>
#else
#include <QtCore/QFile>
#include <QtCore/QSocketNotifier>
#include <QtCore/QTemporaryFile>
#include <QtCore/QVarLengthArray>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef Q_OS_SOLARIS
# include <sys/filio.h> // FIONREAD
#endif
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#endif
namespace Debugger {
namespace Internal {
OutputCollector::OutputCollector(QObject *parent)
: QObject(parent)
{
#ifdef Q_OS_WIN
m_server = 0;
m_socket = 0;
#endif
}
OutputCollector::~OutputCollector()
{
shutdown();
}
bool OutputCollector::listen()
{
#ifdef Q_OS_WIN
if (m_server)
return m_server->isListening();
m_server = new QLocalServer(this);
connect(m_server, SIGNAL(newConnection()), SLOT(newConnectionAvailable()));
return m_server->listen(QString::fromLatin1("creator-%1-%2")
.arg(QCoreApplication::applicationPid())
.arg(rand()));
#else
if (!m_serverPath.isEmpty())
return true;
QByteArray codedServerPath;
forever {
{
QTemporaryFile tf;
if (!tf.open()) {
m_errorString = tr("Cannot create temporary file: %1").arg(tf.errorString());
m_serverPath.clear();
return false;
}
m_serverPath = tf.fileName();
}
// By now the temp file was deleted again
codedServerPath = QFile::encodeName(m_serverPath);
if (!::mkfifo(codedServerPath.constData(), 0600))
break;
if (errno != EEXIST) {
m_errorString = tr("Cannot create FiFo %1: %2").arg(m_serverPath, strerror(errno));
m_serverPath.clear();
return false;
}
}
if ((m_serverFd = ::open(codedServerPath.constData(), O_RDONLY|O_NONBLOCK)) < 0) {
m_errorString = tr("Cannot open FiFo %1: %2").arg(m_serverPath, strerror(errno));
m_serverPath.clear();
return false;
}
m_serverNotifier = new QSocketNotifier(m_serverFd, QSocketNotifier::Read, this);
connect(m_serverNotifier, SIGNAL(activated(int)), SLOT(bytesAvailable()));
return true;
#endif
}
void OutputCollector::shutdown()
{
#ifdef Q_OS_WIN
delete m_server; // Deletes socket as well (QObject parent)
m_server = 0;
m_socket = 0;
#else
if (!m_serverPath.isEmpty()) {
::close(m_serverFd);
::unlink(QFile::encodeName(m_serverPath).constData());
delete m_serverNotifier;
m_serverPath.clear();
}
#endif
}
QString OutputCollector::errorString() const
{
#ifdef Q_OS_WIN
return m_socket ? m_socket->errorString() : m_server->errorString();
#else
return m_errorString;
#endif
}
QString OutputCollector::serverName() const
{
#ifdef Q_OS_WIN
return m_server->fullServerName();
#else
return m_serverPath;
#endif
}
#ifdef Q_OS_WIN
void OutputCollector::newConnectionAvailable()
{
if (m_socket)
return;
m_socket = m_server->nextPendingConnection();
connect(m_socket, SIGNAL(readyRead()), SLOT(bytesAvailable()));
}
#endif
void OutputCollector::bytesAvailable()
{
#ifdef Q_OS_WIN
emit byteDelivery(m_socket->readAll());
#else
size_t nbytes = 0;
if (::ioctl(m_serverFd, FIONREAD, (char *) &nbytes) < 0)
return;
QVarLengthArray<char, 8192> buff(nbytes);
if (::read(m_serverFd, buff.data(), nbytes) != (int)nbytes)
return;
if (nbytes) // Skip EOF notifications
emit byteDelivery(QByteArray::fromRawData(buff.data(), nbytes));
#endif
}
} // namespace Internal
} // namespace Debugger
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