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// Copyright (C) 2017 QNX Software Systems. All rights reserved.
// Copyright (C) 2021 The Qt Company
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qqnxmediaeventthread_p.h"
#include <QtCore/QDebug>
#include <errno.h>
#include <mm/renderer/types.h>
#include <sys/neutrino.h>
extern "C" {
// ### Include mm/renderer/events.h once we have it
int mmr_event_arm(mmr_context_t *ctxt,
struct sigevent const *sev);
}
QT_BEGIN_NAMESPACE
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;
QQnxMediaEventThread::QQnxMediaEventThread(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("QQnxMediaEventThread: 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("QQnxMediaEventThread: Can't continue without a channel connection");
}
SIGEV_PULSE_INIT(&m_mmrEvent, m_connectionId, SIGEV_PULSE_PRIO_INHERIT, c_mmrCode, 0);
}
QQnxMediaEventThread::~QQnxMediaEventThread()
{
// block until thread terminates
shutdown();
ConnectDetach(m_connectionId);
ChannelDestroy(m_channelId);
}
void QQnxMediaEventThread::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 QQnxMediaEventThread::signalRead()
{
MsgSendPulse(m_connectionId, SIGEV_PULSE_PRIO_INHERIT, c_readCode, 0);
}
void QQnxMediaEventThread::shutdown()
{
MsgSendPulse(m_connectionId, SIGEV_PULSE_PRIO_INHERIT, c_quitCode, 0);
// block until thread terminates
wait();
}
QT_END_NAMESPACE
#include "moc_qqnxmediaeventthread_p.cpp"
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