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/*
# Copyright (c) 2009 - OpenSLX Project, Computer Center University of Freiburg
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# src/net/pvsOutgoingMulticastTransfer.cpp
# - wrap McastSender functionality in PVS daemon
# -----------------------------------------------------------------------------
*/
#include "pvsOutgoingMulticastTransfer.h"
#include <QDataStream>
#include <QFile>
#include <QFileInfo>
#include <QHostInfo>
#include <QSettings>
#include <QTimer>
#include <src/net/pvsMsg.h>
#include <src/net/mcast/McastConfiguration.h>
#include <src/net/mcast/McastPGMSocket.h>
#include <src/net/mcast/McastSender.h>
#include <src/util/consoleLogger.h>
PVSOutgoingMulticastTransfer::PVSOutgoingMulticastTransfer(QString senderName, quint64 id, QString filename, QObject* parent) :
QObject(parent),
_file(0),
_progress(0),
_config(0),
_socket(0),
_progressTimer(0),
_prepareTimer(0),
_senderName(senderName),
_id(id),
_error(false)
{
QFileInfo finfo(filename);
if(!finfo.exists())
{
error("File does not exist");
}
if(!finfo.isReadable())
{
error("File is not readable");
}
_file = new QFile(filename, this);
_length = _file->size();
}
PVSOutgoingMulticastTransfer::~PVSOutgoingMulticastTransfer()
{
if(_file)
delete _file;
if(_config)
delete _config;
}
void PVSOutgoingMulticastTransfer::prepare()
{
if (_socket && !_socketInacceptable)
{
_prepareTimer->stop();
delete _prepareTimer;
_prepareTimer = 0;
QTimer::singleShot(0, this, SLOT(doStart()));
return;
}
else if (_socket)
{
delete _socket;
_socket = 0;
}
QSettings settings;
quint16 portbase = settings.value("multicast/port-base", "6966").value<quint16>();
quint16 portlimit = settings.value("multicast/port-limit", "7966").value<quint16>();
int tries_remaining = 5;
while(tries_remaining > 0)
{
quint16 port = portbase + (qrand() % (portlimit - portbase + 1));
if (!_config)
{
_config = new McastConfiguration();
}
_config->loadFrom(&settings, "multicast");
_config->multicastUDPPortBase(port);
_socket = new McastPGMSocket(this);
if(_socket->open(_config, McastPGMSocket::PSOCK_WRITE))
{
break;
}
else
{
delete _socket;
_socket = 0;
}
}
if (!_socket)
{
emit failed(_id, "Could not open socket");
delete _prepareTimer;
_prepareTimer = 0;
return;
}
else
{
_socketInacceptable = false;
// announce the transfer:
QFileInfo info(*_file);
QString message = QString("%1:%2:%3:%4:%5").arg(_senderName).arg(_id).arg(info.baseName()).arg(info.size()).arg(_config->multicastUDPPortBase());
PVSMsg msg(PVSCOMMAND, "MCASTFTANNOUNCE", message);
emit announce(msg);
_prepareTimer->start(5000);
}
}
void PVSOutgoingMulticastTransfer::doStart()
{
ConsoleLog writeLine(QString("Starting multicast transfer %1").arg(_id));
_file->open(QIODevice::ReadOnly);
_sender = new McastSender(_file, _config, this);
connect(_sender, SIGNAL(finished()), SLOT(senderFinished()));
connect(_sender, SIGNAL(progress(quint64)), SLOT(senderProgress(quint64)));
// connect(_sender, SIGNAL(allSent()), SIGNAL(allSent()));
_socket->setParent(_sender);
_sender->start(_socket);
emit started(_id);
_progressTimer = new QTimer(this);
connect(_progressTimer, SIGNAL(timeout()), SLOT(reportTimeout()));
_progressTimer->setInterval(333);
_progressTimer->start();
}
void PVSOutgoingMulticastTransfer::senderProgress(quint64 bytes)
{
_progress = bytes;
}
void PVSOutgoingMulticastTransfer::senderFinished()
{
if(_progressTimer)
{
_progressTimer->stop();
delete _progressTimer;
_progressTimer = 0;
}
emit finished(_id);
_sender->close();
delete _sender;
}
void PVSOutgoingMulticastTransfer::reportTimeout()
{
emit progress(_id, _progress, _length);
}
void PVSOutgoingMulticastTransfer::retry()
{
bool first = !_socketInacceptable;
_socketInacceptable = true;
if(first)
{
_prepareTimer->setInterval(1000);
}
}
void PVSOutgoingMulticastTransfer::start()
{
if (!_prepareTimer)
{
_prepareTimer = new QTimer(this);
_prepareTimer->setSingleShot(true);
connect(_prepareTimer, SIGNAL(timeout()), SLOT(prepare()));
}
QTimer::singleShot(0, this, SLOT(prepare()));
}
void PVSOutgoingMulticastTransfer::abort()
{
if (_sender)
_sender->close();
}
void PVSOutgoingMulticastTransfer::error(QString const& reason)
{
qCritical() << "Could not create an outgoing mcast transfer: " << reason;
_error = true;
_reason = reason;
}
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