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Diffstat (limited to 'tools/runonphone/trk/communicationstarter.cpp')
| -rw-r--r-- | tools/runonphone/trk/communicationstarter.cpp | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/tools/runonphone/trk/communicationstarter.cpp b/tools/runonphone/trk/communicationstarter.cpp new file mode 100644 index 0000000..b425db2 --- /dev/null +++ b/tools/runonphone/trk/communicationstarter.cpp @@ -0,0 +1,248 @@ +/************************************************************************** +** +** This file is part of Qt Creator +** +** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** Commercial Usage +** +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://qt.nokia.com/contact. +** +**************************************************************************/ + +#include "communicationstarter.h" +#include "bluetoothlistener.h" +#include "trkdevice.h" + +#include <QtCore/QTimer> +#include <QtCore/QEventLoop> + +namespace trk { + +// --------------- AbstractBluetoothStarter +struct BaseCommunicationStarterPrivate { + explicit BaseCommunicationStarterPrivate(const BaseCommunicationStarter::TrkDevicePtr &d); + + const BaseCommunicationStarter::TrkDevicePtr trkDevice; + BluetoothListener *listener; + QTimer *timer; + int intervalMS; + int attempts; + int n; + QString device; + QString errorString; + BaseCommunicationStarter::State state; +}; + +BaseCommunicationStarterPrivate::BaseCommunicationStarterPrivate(const BaseCommunicationStarter::TrkDevicePtr &d) : + trkDevice(d), + listener(0), + timer(0), + intervalMS(1000), + attempts(-1), + n(0), + device(QLatin1String("/dev/rfcomm0")), + state(BaseCommunicationStarter::TimedOut) +{ +} + +BaseCommunicationStarter::BaseCommunicationStarter(const TrkDevicePtr &trkDevice, QObject *parent) : + QObject(parent), + d(new BaseCommunicationStarterPrivate(trkDevice)) +{ +} + +BaseCommunicationStarter::~BaseCommunicationStarter() +{ + stopTimer(); + delete d; +} + +void BaseCommunicationStarter::stopTimer() +{ + if (d->timer && d->timer->isActive()) + d->timer->stop(); +} + +bool BaseCommunicationStarter::initializeStartupResources(QString *errorMessage) +{ + errorMessage->clear(); + return true; +} + +BaseCommunicationStarter::StartResult BaseCommunicationStarter::start() +{ + if (state() == Running) { + d->errorString = QLatin1String("Internal error, attempt to re-start BaseCommunicationStarter.\n"); + return StartError; + } + // Before we instantiate timers, and such, try to open the device, + // which should succeed if another listener is already running in + // 'Watch' mode + if (d->trkDevice->open(d->device , &(d->errorString))) + return ConnectionSucceeded; + // Pull up resources for next attempt + d->n = 0; + if (!initializeStartupResources(&(d->errorString))) + return StartError; + // Start timer + if (!d->timer) { + d->timer = new QTimer; + connect(d->timer, SIGNAL(timeout()), this, SLOT(slotTimer())); + } + d->timer->setInterval(d->intervalMS); + d->timer->setSingleShot(false); + d->timer->start(); + d->state = Running; + return Started; +} + +BaseCommunicationStarter::State BaseCommunicationStarter::state() const +{ + return d->state; +} + +int BaseCommunicationStarter::intervalMS() const +{ + return d->intervalMS; +} + +void BaseCommunicationStarter::setIntervalMS(int i) +{ + d->intervalMS = i; + if (d->timer) + d->timer->setInterval(i); +} + +int BaseCommunicationStarter::attempts() const +{ + return d->attempts; +} + +void BaseCommunicationStarter::setAttempts(int a) +{ + d->attempts = a; +} + +QString BaseCommunicationStarter::device() const +{ + return d->device; +} + +void BaseCommunicationStarter::setDevice(const QString &dv) +{ + d->device = dv; +} + +QString BaseCommunicationStarter::errorString() const +{ + return d->errorString; +} + +void BaseCommunicationStarter::slotTimer() +{ + ++d->n; + // Check for timeout + if (d->attempts >= 0 && d->n >= d->attempts) { + stopTimer(); + d->errorString = tr("%1: timed out after %n attempts using an interval of %2ms.", 0, d->n) + .arg(d->device).arg(d->intervalMS); + d->state = TimedOut; + emit timeout(); + } else { + // Attempt n to connect? + if (d->trkDevice->open(d->device , &(d->errorString))) { + stopTimer(); + const QString msg = tr("%1: Connection attempt %2 succeeded.").arg(d->device).arg(d->n); + emit message(msg); + d->state = Connected; + emit connected(); + } else { + const QString msg = tr("%1: Connection attempt %2 failed: %3 (retrying)...") + .arg(d->device).arg(d->n).arg(d->errorString); + emit message(msg); + } + } +} + +// --------------- AbstractBluetoothStarter + +AbstractBluetoothStarter::AbstractBluetoothStarter(const TrkDevicePtr &trkDevice, QObject *parent) : + BaseCommunicationStarter(trkDevice, parent) +{ +} + +bool AbstractBluetoothStarter::initializeStartupResources(QString *errorMessage) +{ + // Create the listener and forward messages to it. + BluetoothListener *listener = createListener(); + connect(this, SIGNAL(message(QString)), listener, SLOT(emitMessage(QString))); + return listener->start(device(), errorMessage); +} + +// -------- ConsoleBluetoothStarter +ConsoleBluetoothStarter::ConsoleBluetoothStarter(const TrkDevicePtr &trkDevice, + QObject *listenerParent, + QObject *parent) : +AbstractBluetoothStarter(trkDevice, parent), +m_listenerParent(listenerParent) +{ +} + +BluetoothListener *ConsoleBluetoothStarter::createListener() +{ + BluetoothListener *rc = new BluetoothListener(m_listenerParent); + rc->setMode(BluetoothListener::Listen); + rc->setPrintConsoleMessages(true); + return rc; +} + +bool ConsoleBluetoothStarter::startBluetooth(const TrkDevicePtr &trkDevice, + QObject *listenerParent, + const QString &device, + int attempts, + QString *errorMessage) +{ + // Set up a console starter to print to stdout. + ConsoleBluetoothStarter starter(trkDevice, listenerParent); + starter.setDevice(device); + starter.setAttempts(attempts); + switch (starter.start()) { + case Started: + break; + case ConnectionSucceeded: + return true; + case StartError: + *errorMessage = starter.errorString(); + return false; + } + // Run the starter with an event loop. @ToDo: Implement + // some asynchronous keypress read to cancel. + QEventLoop eventLoop; + connect(&starter, SIGNAL(connected()), &eventLoop, SLOT(quit())); + connect(&starter, SIGNAL(timeout()), &eventLoop, SLOT(quit())); + eventLoop.exec(QEventLoop::ExcludeUserInputEvents); + if (starter.state() != AbstractBluetoothStarter::Connected) { + *errorMessage = starter.errorString(); + return false; + } + return true; +} +} // namespace trk |