diff options
Diffstat (limited to 'src/plugins/qnx/mediaplayer/mmreventthread.cpp')
-rw-r--r-- | src/plugins/qnx/mediaplayer/mmreventthread.cpp | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/plugins/qnx/mediaplayer/mmreventthread.cpp b/src/plugins/qnx/mediaplayer/mmreventthread.cpp new file mode 100644 index 000000000..25f26e216 --- /dev/null +++ b/src/plugins/qnx/mediaplayer/mmreventthread.cpp @@ -0,0 +1,121 @@ +/**************************************************************************** +** +** Copyright (C) 2017 QNX Software Systems. All rights reserved. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 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. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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(); +} |