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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QEVENTDISPATCHER_UNIX_P_H
#define QEVENTDISPATCHER_UNIX_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "QtCore/qabstracteventdispatcher.h"
#include "QtCore/qlist.h"
#include "private/qabstracteventdispatcher_p.h"
#include "private/qcore_unix_p.h"
#include "private/qpodlist_p.h"
#include "QtCore/qvarlengtharray.h"
#if defined(Q_OS_VXWORKS)
# include <sys/times.h>
#else
# include <sys/time.h>
# if (!defined(Q_OS_HPUX) || defined(__ia64)) && !defined(Q_OS_NACL)
# include <sys/select.h>
# endif
#endif
QT_BEGIN_NAMESPACE
// internal timer info
struct QTimerInfo {
int id; // - timer identifier
timeval interval; // - timer interval
timeval timeout; // - when to sent event
QObject *obj; // - object to receive event
QTimerInfo **activateRef; // - ref from activateTimers
};
class QTimerInfoList : public QList<QTimerInfo*>
{
#if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED)
timeval previousTime;
clock_t previousTicks;
int ticksPerSecond;
int msPerTick;
bool timeChanged(timeval *delta);
#endif
// state variables used by activateTimers()
QTimerInfo *firstTimerInfo;
public:
QTimerInfoList();
timeval currentTime;
timeval updateCurrentTime();
// must call updateCurrentTime() first!
void repairTimersIfNeeded();
bool timerWait(timeval &);
void timerInsert(QTimerInfo *);
void timerRepair(const timeval &);
void registerTimer(int timerId, int interval, QObject *object);
bool unregisterTimer(int timerId);
bool unregisterTimers(QObject *object);
QList<QPair<int, int> > registeredTimers(QObject *object) const;
int activateTimers();
};
struct QSockNot
{
QSocketNotifier *obj;
int fd;
fd_set *queue;
};
class QSockNotType
{
public:
QSockNotType();
~QSockNotType();
typedef QPodList<QSockNot*, 32> List;
List list;
fd_set select_fds;
fd_set enabled_fds;
fd_set pending_fds;
};
class QEventDispatcherUNIXPrivate;
class Q_CORE_EXPORT QEventDispatcherUNIX : public QAbstractEventDispatcher
{
Q_OBJECT
Q_DECLARE_PRIVATE(QEventDispatcherUNIX)
public:
explicit QEventDispatcherUNIX(QObject *parent = 0);
~QEventDispatcherUNIX();
bool processEvents(QEventLoop::ProcessEventsFlags flags);
bool hasPendingEvents();
void registerSocketNotifier(QSocketNotifier *notifier);
void unregisterSocketNotifier(QSocketNotifier *notifier);
void registerTimer(int timerId, int interval, QObject *object);
bool unregisterTimer(int timerId);
bool unregisterTimers(QObject *object);
QList<TimerInfo> registeredTimers(QObject *object) const;
void wakeUp();
void interrupt();
void flush();
protected:
QEventDispatcherUNIX(QEventDispatcherUNIXPrivate &dd, QObject *parent = 0);
void setSocketNotifierPending(QSocketNotifier *notifier);
int activateTimers();
int activateSocketNotifiers();
virtual int select(int nfds,
fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
timeval *timeout);
};
class Q_CORE_EXPORT QEventDispatcherUNIXPrivate : public QAbstractEventDispatcherPrivate
{
Q_DECLARE_PUBLIC(QEventDispatcherUNIX)
public:
QEventDispatcherUNIXPrivate();
~QEventDispatcherUNIXPrivate();
int doSelect(QEventLoop::ProcessEventsFlags flags, timeval *timeout);
bool mainThread;
int thread_pipe[2];
// highest fd for all socket notifiers
int sn_highest;
// 3 socket notifier types - read, write and exception
QSockNotType sn_vec[3];
QTimerInfoList timerList;
// pending socket notifiers list
QSockNotType::List sn_pending_list;
QAtomicInt wakeUps;
bool interrupt;
};
QT_END_NAMESPACE
#endif // QEVENTDISPATCHER_UNIX_P_H
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