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qeventdispatcher_unix_p.h
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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#ifndef QEVENTDISPATCHER_UNIX_P_H
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#define QEVENTDISPATCHER_UNIX_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "QtCore/qabstracteventdispatcher.h"
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#include "QtCore/qlist.h"
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#include "private/qabstracteventdispatcher_p.h"
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#include "private/qcore_unix_p.h"
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#include "private/qpodlist_p.h"
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#include "QtCore/qvarlengtharray.h"
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#if !defined(Q_OS_VXWORKS)
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# include <sys/time.h>
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# if (!defined(Q_OS_HPUX) || defined(__ia64)) && !defined(Q_OS_NACL)
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# include <sys/select.h>
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# endif
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#endif
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QT_BEGIN_NAMESPACE
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// internal timer info
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struct
QTimerInfo
{
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int
id
;
// - timer identifier
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timeval
interval
;
// - timer interval
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timeval
timeout
;
// - when to sent event
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QObject
*
obj
;
// - object to receive event
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QTimerInfo
**
activateRef
;
// - ref from activateTimers
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};
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class
QTimerInfoList
:
public
QList
<QTimerInfo*>
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{
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#if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED)
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timeval previousTime;
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clock_t previousTicks;
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int
ticksPerSecond;
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int
msPerTick;
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bool
timeChanged(timeval *delta);
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#endif
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// state variables used by activateTimers()
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QTimerInfo
*
firstTimerInfo
;
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public
:
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QTimerInfoList
();
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timeval
currentTime
;
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timeval updateCurrentTime();
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// must call updateCurrentTime() first!
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void
repairTimersIfNeeded();
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bool
timerWait(timeval &);
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void
timerInsert(
QTimerInfo
*);
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void
timerRepair(
const
timeval &);
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void
registerTimer(
int
timerId,
int
interval
,
QObject
*
object
);
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bool
unregisterTimer(
int
timerId);
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bool
unregisterTimers(
QObject
*
object
);
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QList<QPair<int, int>
> registeredTimers(
QObject
*
object
)
const
;
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int
activateTimers();
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};
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struct
QSockNot
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{
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QSocketNotifier
*
obj
;
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int
fd
;
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fd_set *
queue
;
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};
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class
QSockNotType
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{
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public
:
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QSockNotType
();
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~
QSockNotType
();
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typedef
QPodList<QSockNot*, 32>
List
;
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List
list
;
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fd_set
select_fds
;
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fd_set
enabled_fds
;
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fd_set
pending_fds
;
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};
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class
QEventDispatcherUNIXPrivate
;
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class
Q_CORE_EXPORT
QEventDispatcherUNIX
:
public
QAbstractEventDispatcher
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{
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Q_OBJECT
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Q_DECLARE_PRIVATE
(
QEventDispatcherUNIX
)
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public
:
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explicit
QEventDispatcherUNIX
(
QObject
*parent = 0);
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~
QEventDispatcherUNIX
();
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bool
processEvents(QEventLoop::ProcessEventsFlags flags);
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bool
hasPendingEvents();
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void
registerSocketNotifier(
QSocketNotifier
*notifier);
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void
unregisterSocketNotifier(
QSocketNotifier
*notifier);
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void
registerTimer(
int
timerId,
int
interval
,
QObject
*
object
);
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bool
unregisterTimer(
int
timerId);
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bool
unregisterTimers(
QObject
*
object
);
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QList<TimerInfo>
registeredTimers(
QObject
*
object
)
const
;
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void
wakeUp();
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void
interrupt();
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void
flush
();
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protected
:
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QEventDispatcherUNIX
(
QEventDispatcherUNIXPrivate
&dd,
QObject
*parent = 0);
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void
setSocketNotifierPending(
QSocketNotifier
*notifier);
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int
activateTimers();
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int
activateSocketNotifiers();
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virtual
int
select
(
int
nfds,
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fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
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timeval *
timeout
);
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};
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class
Q_CORE_EXPORT
QEventDispatcherUNIXPrivate
:
public
QAbstractEventDispatcherPrivate
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{
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Q_DECLARE_PUBLIC
(
QEventDispatcherUNIX
)
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public
:
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QEventDispatcherUNIXPrivate
();
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~
QEventDispatcherUNIXPrivate
();
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int
doSelect(QEventLoop::ProcessEventsFlags flags, timeval *
timeout
);
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virtual
int
initThreadWakeUp();
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virtual
int
processThreadWakeUp(
int
nsel);
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bool
mainThread
;
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int
thread_pipe[2];
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// highest fd for all socket notifiers
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int
sn_highest
;
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// 3 socket notifier types - read, write and exception
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QSockNotType
sn_vec[3];
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QTimerInfoList
timerList
;
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// pending socket notifiers list
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QSockNotType::List
sn_pending_list
;
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QAtomicInt
wakeUps
;
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bool
interrupt
;
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};
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QT_END_NAMESPACE
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#endif // QEVENTDISPATCHER_UNIX_P_H
QSockNot::obj
QSocketNotifier * obj
Definition:
qeventdispatcher_unix_p.h:118
QTimerInfo::id
int id
Definition:
qeventdispatcher_unix_p.h:74
QT_END_NAMESPACE
#define QT_END_NAMESPACE
This macro expands to.
Definition:
qglobal.h:90
QSockNotType::pending_fds
fd_set pending_fds
Definition:
qeventdispatcher_unix_p.h:134
QAtomicInt
The QAtomicInt class provides platform-independent atomic operations on integers. ...
Definition:
qatomic.h:55
QTimerInfo::obj
QObject * obj
Definition:
qeventdispatcher_unix_p.h:77
QEventDispatcherUNIXPrivate::interrupt
bool interrupt
Definition:
qeventdispatcher_unix_p.h:203
QSockNotType::list
List list
Definition:
qeventdispatcher_unix_p.h:131
select
int select(int, fd_set *, fd_set *, fd_set *, struct timeval *)
Definition:
qfunctions_nacl.cpp:153
QEventDispatcherUNIX
Definition:
qeventdispatcher_unix_p.h:140
QObject
The QObject class is the base class of all Qt objects.
Definition:
qobject.h:111
QSocketNotifier
The QSocketNotifier class provides support for monitoring activity on a file descriptor.
Definition:
qsocketnotifier.h:53
QPodList< QSockNot *, 32 >
QEventDispatcherUNIXPrivate
Definition:
qeventdispatcher_unix_p.h:177
QTimerInfoList::firstTimerInfo
QTimerInfo * firstTimerInfo
Definition:
qeventdispatcher_unix_p.h:93
QTimerInfo::activateRef
QTimerInfo ** activateRef
Definition:
qeventdispatcher_unix_p.h:78
QT_BEGIN_NAMESPACE
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition:
qglobal.h:89
QTimerInfo::timeout
timeval timeout
Definition:
qeventdispatcher_unix_p.h:76
QSockNot::queue
fd_set * queue
Definition:
qeventdispatcher_unix_p.h:120
QEventDispatcherUNIXPrivate::sn_pending_list
QSockNotType::List sn_pending_list
Definition:
qeventdispatcher_unix_p.h:200
Q_OBJECT
#define Q_OBJECT
Definition:
qobjectdefs.h:157
QSockNot::fd
int fd
Definition:
qeventdispatcher_unix_p.h:119
QEventDispatcherUNIXPrivate::wakeUps
QAtomicInt wakeUps
Definition:
qeventdispatcher_unix_p.h:202
QTimerInfoList
Definition:
qeventdispatcher_unix_p.h:81
QSockNotType::enabled_fds
fd_set enabled_fds
Definition:
qeventdispatcher_unix_p.h:133
Q_DECLARE_PUBLIC
#define Q_DECLARE_PUBLIC(Class)
Definition:
qglobal.h:2477
Q_CORE_EXPORT
#define Q_CORE_EXPORT
Definition:
qglobal.h:1449
QTimerInfo
Definition:
qeventdispatcher_unix_p.h:73
QSockNotType::select_fds
fd_set select_fds
Definition:
qeventdispatcher_unix_p.h:132
QEventDispatcherUNIXPrivate::sn_highest
int sn_highest
Definition:
qeventdispatcher_unix_p.h:193
QSockNot
Definition:
qeventdispatcher_unix_p.h:116
QEventDispatcherUNIXPrivate::timerList
QTimerInfoList timerList
Definition:
qeventdispatcher_unix_p.h:197
flush
Q_CORE_EXPORT QTextStream & flush(QTextStream &s)
Q_DECLARE_PRIVATE
#define Q_DECLARE_PRIVATE(Class)
Definition:
qglobal.h:2467
QSockNotType::List
QPodList< QSockNot *, 32 > List
Definition:
qeventdispatcher_unix_p.h:129
QAbstractEventDispatcherPrivate
Definition:
qabstracteventdispatcher_p.h:63
QSockNotType
Definition:
qeventdispatcher_unix_p.h:123
QAbstractEventDispatcher
The QAbstractEventDispatcher class provides an interface to manage Qt's event queue.
Definition:
qabstracteventdispatcher.h:58
QTimerInfo::interval
timeval interval
Definition:
qeventdispatcher_unix_p.h:75
QTimerInfoList::currentTime
timeval currentTime
Definition:
qeventdispatcher_unix_p.h:98
QEventDispatcherUNIXPrivate::mainThread
bool mainThread
Definition:
qeventdispatcher_unix_p.h:189
QList
The QList class is a template class that provides lists.
Definition:
qdatastream.h:62
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