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| |
| #ifndef QEVENTDISPATCHER_CF_P_H |
| #define QEVENTDISPATCHER_CF_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. |
| // |
| |
| #define DEBUG_EVENT_DISPATCHER 0 |
| |
| #include <QtCore/qabstracteventdispatcher.h> |
| #include <QtCore/private/qtimerinfo_unix_p.h> |
| #include <QtCore/qdebug.h> |
| #include <QtPlatformSupport/private/qcfsocketnotifier_p.h> |
| #include <CoreFoundation/CoreFoundation.h> |
| |
| #ifdef __OBJC__ |
| @class RunLoopModeTracker; |
| #else |
| typedef struct objc_object RunLoopModeTracker; |
| #endif |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QEventDispatcherCoreFoundation; |
| |
| template <class T = QEventDispatcherCoreFoundation> |
| class RunLoopSource |
| { |
| public: |
| typedef void (T::*CallbackFunction) (); |
| |
| enum { kHighestPriority = 0 } RunLoopSourcePriority; |
| |
| RunLoopSource(T *delegate, CallbackFunction callback) |
| : m_delegate(delegate), m_callback(callback) |
| { |
| CFRunLoopSourceContext context = {}; |
| context.info = this; |
| context.perform = RunLoopSource::process; |
| |
| m_source = CFRunLoopSourceCreate(kCFAllocatorDefault, kHighestPriority, &context); |
| Q_ASSERT(m_source); |
| } |
| |
| ~RunLoopSource() |
| { |
| CFRunLoopSourceInvalidate(m_source); |
| CFRelease(m_source); |
| } |
| |
| void addToMode(CFStringRef mode, CFRunLoopRef runLoop = 0) |
| { |
| if (!runLoop) |
| runLoop = CFRunLoopGetCurrent(); |
| |
| CFRunLoopAddSource(runLoop, m_source, mode); |
| } |
| |
| void signal() { CFRunLoopSourceSignal(m_source); } |
| |
| private: |
| static void process(void *info) |
| { |
| RunLoopSource *self = static_cast<RunLoopSource *>(info); |
| ((self->m_delegate)->*(self->m_callback))(); |
| } |
| |
| T *m_delegate; |
| CallbackFunction m_callback; |
| CFRunLoopSourceRef m_source; |
| }; |
| |
| template <class T = QEventDispatcherCoreFoundation> |
| class RunLoopObserver |
| { |
| public: |
| typedef void (T::*CallbackFunction) (CFRunLoopActivity activity); |
| |
| RunLoopObserver(T *delegate, CallbackFunction callback, CFOptionFlags activities) |
| : m_delegate(delegate), m_callback(callback) |
| { |
| CFRunLoopObserverContext context = {}; |
| context.info = this; |
| |
| m_observer = CFRunLoopObserverCreate(kCFAllocatorDefault, activities, true, 0, process, &context); |
| Q_ASSERT(m_observer); |
| } |
| |
| ~RunLoopObserver() |
| { |
| CFRunLoopObserverInvalidate(m_observer); |
| CFRelease(m_observer); |
| } |
| |
| void addToMode(CFStringRef mode, CFRunLoopRef runLoop = 0) |
| { |
| if (!runLoop) |
| runLoop = CFRunLoopGetCurrent(); |
| |
| if (!CFRunLoopContainsObserver(runLoop, m_observer, mode)) |
| CFRunLoopAddObserver(runLoop, m_observer, mode); |
| } |
| |
| void removeFromMode(CFStringRef mode, CFRunLoopRef runLoop = 0) |
| { |
| if (!runLoop) |
| runLoop = CFRunLoopGetCurrent(); |
| |
| if (CFRunLoopContainsObserver(runLoop, m_observer, mode)) |
| CFRunLoopRemoveObserver(runLoop, m_observer, mode); |
| } |
| |
| private: |
| static void process(CFRunLoopObserverRef, CFRunLoopActivity activity, void *info) |
| { |
| RunLoopObserver *self = static_cast<RunLoopObserver *>(info); |
| ((self->m_delegate)->*(self->m_callback))(activity); |
| } |
| |
| T *m_delegate; |
| CallbackFunction m_callback; |
| CFRunLoopObserverRef m_observer; |
| }; |
| |
| class QEventDispatcherCoreFoundation : public QAbstractEventDispatcher |
| { |
| Q_OBJECT |
| |
| public: |
| explicit QEventDispatcherCoreFoundation(QObject *parent = 0); |
| ~QEventDispatcherCoreFoundation(); |
| |
| bool processEvents(QEventLoop::ProcessEventsFlags flags); |
| bool hasPendingEvents(); |
| |
| void registerSocketNotifier(QSocketNotifier *notifier); |
| void unregisterSocketNotifier(QSocketNotifier *notifier); |
| |
| void registerTimer(int timerId, int interval, Qt::TimerType timerType, QObject *object); |
| bool unregisterTimer(int timerId); |
| bool unregisterTimers(QObject *object); |
| QList<QAbstractEventDispatcher::TimerInfo> registeredTimers(QObject *object) const; |
| |
| int remainingTime(int timerId); |
| |
| void wakeUp(); |
| void interrupt(); |
| void flush(); |
| |
| private: |
| RunLoopSource<> m_postedEventsRunLoopSource; |
| RunLoopObserver<> m_runLoopActivityObserver; |
| |
| RunLoopModeTracker *m_runLoopModeTracker; |
| |
| QTimerInfoList m_timerInfoList; |
| CFRunLoopTimerRef m_runLoopTimer; |
| CFRunLoopTimerRef m_blockedRunLoopTimer; |
| bool m_overdueTimerScheduled; |
| |
| QCFSocketNotifier m_cfSocketNotifier; |
| |
| struct ProcessEventsState |
| { |
| ProcessEventsState(QEventLoop::ProcessEventsFlags f) |
| : flags(f), wasInterrupted(false) |
| , processedPostedEvents(false), processedTimers(false) |
| , deferredWakeUp(false), deferredUpdateTimers(false) {} |
| |
| QEventLoop::ProcessEventsFlags flags; |
| bool wasInterrupted; |
| bool processedPostedEvents; |
| bool processedTimers; |
| bool deferredWakeUp; |
| bool deferredUpdateTimers; |
| }; |
| |
| ProcessEventsState m_processEvents; |
| |
| void processPostedEvents(); |
| void processTimers(CFRunLoopTimerRef); |
| |
| void handleRunLoopActivity(CFRunLoopActivity activity); |
| |
| void updateTimers(); |
| void invalidateTimer(); |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #if DEBUG_EVENT_DISPATCHER |
| extern uint g_eventDispatcherIndentationLevel; |
| #define qEventDispatcherDebug() qDebug().nospace() \ |
| << qPrintable(QString(QLatin1String("| ")).repeated(g_eventDispatcherIndentationLevel)) \ |
| << __FUNCTION__ << "(): " |
| #define qIndent() ++g_eventDispatcherIndentationLevel |
| #define qUnIndent() --g_eventDispatcherIndentationLevel |
| #else |
| #define qEventDispatcherDebug() QT_NO_QDEBUG_MACRO() |
| #define qIndent() |
| #define qUnIndent() |
| #endif |
| |
| #endif // QEVENTDISPATCHER_CF_P_H |