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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtBluetooth module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/QLoggingCategory>
#include <QtAndroidExtras/QAndroidJniEnvironment>
#include "android/serveracceptancethread_p.h"
Q_DECLARE_LOGGING_CATEGORY(QT_BT_ANDROID)
ServerAcceptanceThread::ServerAcceptanceThread(QObject *parent) :
QObject(parent), maxPendingConnections(1)
{
qRegisterMetaType<QBluetoothServer::Error>("QBluetoothServer::Error");
}
ServerAcceptanceThread::~ServerAcceptanceThread()
{
Q_ASSERT(!isRunning());
QMutexLocker lock(&m_mutex);
shutdownPendingConnections();
}
void ServerAcceptanceThread::setServiceDetails(const QBluetoothUuid &uuid,
const QString &serviceName,
QBluetooth::SecurityFlags securityFlags)
{
QMutexLocker lock(&m_mutex);
m_uuid = uuid;
m_serviceName = serviceName;
secFlags = securityFlags;
}
bool ServerAcceptanceThread::hasPendingConnections() const
{
QMutexLocker lock(&m_mutex);
return (pendingSockets.count() > 0);
}
/*
* Returns the next pending connection or an invalid JNI object.
* Note that even a stopped thread may still have pending
* connections. Pending connections are only terminated upon
* thread restart or destruction.
*/
QAndroidJniObject ServerAcceptanceThread::nextPendingConnection()
{
QMutexLocker lock(&m_mutex);
if (pendingSockets.isEmpty())
return QAndroidJniObject();
else
return pendingSockets.takeFirst();
}
void ServerAcceptanceThread::setMaxPendingConnections(int maximumCount)
{
QMutexLocker lock(&m_mutex);
maxPendingConnections = maximumCount;
}
void ServerAcceptanceThread::run()
{
QMutexLocker lock(&m_mutex);
if (!validSetup()) {
qCWarning(QT_BT_ANDROID) << "Invalid Server Socket setup";
return;
}
if (isRunning()) {
stop();
shutdownPendingConnections();
}
javaThread = QAndroidJniObject("org/qtproject/qt5/android/bluetooth/QtBluetoothSocketServer");
if (!javaThread.isValid())
return;
javaThread.setField<jlong>("qtObject", reinterpret_cast<long>(this));
javaThread.setField<jboolean>("logEnabled", QT_BT_ANDROID().isDebugEnabled());
QString tempUuid = m_uuid.toString();
tempUuid.chop(1); //remove trailing '}'
tempUuid.remove(0,1); //remove first '{'
QAndroidJniObject uuidString = QAndroidJniObject::fromString(tempUuid);
QAndroidJniObject serviceNameString = QAndroidJniObject::fromString(m_serviceName);
bool isSecure = !(secFlags == QBluetooth::NoSecurity);
javaThread.callMethod<void>("setServiceDetails", "(Ljava/lang/String;Ljava/lang/String;Z)V",
uuidString.object<jstring>(),
serviceNameString.object<jstring>(),
isSecure);
javaThread.callMethod<void>("start");
}
void ServerAcceptanceThread::stop()
{
if (javaThread.isValid()) {
qCDebug(QT_BT_ANDROID) << "Closing server socket";
javaThread.callMethod<void>("close");
}
}
bool ServerAcceptanceThread::isRunning() const
{
if (javaThread.isValid())
return javaThread.callMethod<jboolean>("isAlive");
return false;
}
//Runs inside the java thread
void ServerAcceptanceThread::javaThreadErrorOccurred(int errorCode)
{
qCDebug(QT_BT_ANDROID) << "JavaThread error:" << errorCode;
emit error(QBluetoothServer::InputOutputError);
}
//Runs inside the Java thread
void ServerAcceptanceThread::javaNewSocket(jobject s)
{
QMutexLocker lock(&m_mutex);
QAndroidJniObject socket(s);
if (!socket.isValid())
return;
if (pendingSockets.count() < maxPendingConnections) {
qCDebug(QT_BT_ANDROID) << "New incoming java socket detected";
pendingSockets.append(socket);
emit newConnection();
} else {
QAndroidJniEnvironment env;
qCWarning(QT_BT_ANDROID) << "Refusing connection due to limited pending socket queue";
socket.callMethod<void>("close");
if (env->ExceptionCheck()) {
qCWarning(QT_BT_ANDROID) << "Error during refusal of new socket";
env->ExceptionDescribe();
env->ExceptionClear();
}
}
}
bool ServerAcceptanceThread::validSetup() const
{
return (!m_uuid.isNull() && !m_serviceName.isEmpty());
}
void ServerAcceptanceThread::shutdownPendingConnections()
{
while (!pendingSockets.isEmpty()) {
QAndroidJniObject socket = pendingSockets.takeFirst();
socket.callMethod<void>("close");
}
}
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