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| |
| #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(); |
| } |