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/****************************************************************************
**
** Copyright (C) 2017 QNX Software Systems. All rights reserved.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#include "mmreventthread.h"
#include <QtCore/QDebug>
#include <errno.h>
#include <mm/renderer/events.h>
#include <sys/neutrino.h>
static const int c_mmrCode = _PULSE_CODE_MINAVAIL + 0;
static const int c_readCode = _PULSE_CODE_MINAVAIL + 1;
static const int c_quitCode = _PULSE_CODE_MINAVAIL + 2;
MmrEventThread::MmrEventThread(mmr_context_t *context)
: QThread(),
m_mmrContext(context)
{
if (Q_UNLIKELY((m_channelId = ChannelCreate(_NTO_CHF_DISCONNECT
| _NTO_CHF_UNBLOCK
| _NTO_CHF_PRIVATE)) == -1)) {
qFatal("MmrEventThread: Can't continue without a channel");
}
if (Q_UNLIKELY((m_connectionId = ConnectAttach(0, 0, m_channelId,
_NTO_SIDE_CHANNEL, 0)) == -1)) {
ChannelDestroy(m_channelId);
qFatal("MmrEventThread: Can't continue without a channel connection");
}
SIGEV_PULSE_INIT(&m_mmrEvent, m_connectionId, SIGEV_PULSE_PRIO_INHERIT, c_mmrCode, 0);
}
MmrEventThread::~MmrEventThread()
{
// block until thread terminates
shutdown();
ConnectDetach(m_connectionId);
ChannelDestroy(m_channelId);
}
void MmrEventThread::run()
{
int armResult = mmr_event_arm(m_mmrContext, &m_mmrEvent);
if (armResult > 0)
emit eventPending();
while (1) {
struct _pulse msg;
memset(&msg, 0, sizeof(msg));
int receiveId = MsgReceive(m_channelId, &msg, sizeof(msg), nullptr);
if (receiveId == 0) {
if (msg.code == c_mmrCode) {
emit eventPending();
} else if (msg.code == c_readCode) {
armResult = mmr_event_arm(m_mmrContext, &m_mmrEvent);
if (armResult > 0)
emit eventPending();
} else if (msg.code == c_quitCode) {
break;
} else {
qWarning() << Q_FUNC_INFO << "Unexpected pulse" << msg.code;
}
} else if (receiveId > 0) {
qWarning() << Q_FUNC_INFO << "Unexpected message" << msg.code;
} else {
qWarning() << Q_FUNC_INFO << "MsgReceive error" << strerror(errno);
}
}
}
void MmrEventThread::signalRead()
{
MsgSendPulse(m_connectionId, SIGEV_PULSE_PRIO_INHERIT, c_readCode, 0);
}
void MmrEventThread::shutdown()
{
MsgSendPulse(m_connectionId, SIGEV_PULSE_PRIO_INHERIT, c_quitCode, 0);
// block until thread terminates
wait();
}
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