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/****************************************************************************
**
** Copyright (C) 2013 Lauri Laanmets (Proekspert AS) <lauri.laanmets@eesti.ee>
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 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, 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtAndroidExtras/QAndroidJniEnvironment>
#include "android/inputstreamthread_p.h"
#include "qbluetoothsocket_p.h"
QT_BEGIN_NAMESPACE
InputStreamThread::InputStreamThread(QBluetoothSocketPrivate *socket)
: QThread(), m_stop(false)
{
m_socket_p = socket;
}
void InputStreamThread::run()
{
qint32 byte;
Q_UNUSED(byte)
while (1) {
{
QMutexLocker locker(&m_mutex);
if (m_stop)
break;
}
readFromInputStream();
}
QAndroidJniEnvironment env;
if (m_socket_p->inputStream.isValid())
m_socket_p->inputStream.callMethod<void>("close");
if (env->ExceptionCheck()) {
env->ExceptionDescribe();
env->ExceptionClear();
}
}
bool InputStreamThread::bytesAvailable() const
{
QMutexLocker locker(&m_mutex);
return m_socket_p->buffer.size();
}
//This runs inside the thread.
void InputStreamThread::readFromInputStream()
{
QAndroidJniEnvironment env;
int bufLen = 1000; // Seems to magical number that also low-end products can survive.
jbyteArray nativeArray = env->NewByteArray(bufLen);
jint ret = m_socket_p->inputStream.callMethod<jint>("read", "([BII)I", nativeArray, 0, bufLen);
if (env->ExceptionCheck() || ret < 0) {
if (env->ExceptionCheck()) {
env->ExceptionDescribe();
env->ExceptionClear();
}
env->DeleteLocalRef(nativeArray);
QMutexLocker lock(&m_mutex);
m_stop = true;
/*
* We cannot distinguish IOException due to valid closure or due to other error
* Therefore we always have to throw an error and a disconnect signal
* A genuine disconnect wouldn't need the error signal.
* For now we always signal error which implicitly emits disconnect() too.
*/
emit error();
return;
}
if (ret == 0) {
qDebug() << "Nothing to read";
env->DeleteLocalRef(nativeArray);
return;
}
QMutexLocker lock(&m_mutex);
char *writePtr = m_socket_p->buffer.reserve(bufLen);
env->GetByteArrayRegion(nativeArray, 0, ret, reinterpret_cast<jbyte*>(writePtr));
env->DeleteLocalRef(nativeArray);
m_socket_p->buffer.chop(bufLen - ret);
emit dataAvailable();
}
void InputStreamThread::stop()
{
QMutexLocker locker(&m_mutex);
m_stop = true;
}
qint64 InputStreamThread::readData(char *data, qint64 maxSize)
{
QMutexLocker locker(&m_mutex);
if (m_stop)
return -1;
if (!m_socket_p->buffer.isEmpty())
return m_socket_p->buffer.read(data, maxSize);
return 0;
}
QT_END_NAMESPACE
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