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39
40#ifndef QEVENTDISPATCHER_UNIX_P_H
41#define QEVENTDISPATCHER_UNIX_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include "QtCore/qabstracteventdispatcher.h"
55#include "QtCore/qlist.h"
56#include "private/qabstracteventdispatcher_p.h"
57#include "private/qcore_unix_p.h"
58#include "QtCore/qvarlengtharray.h"
59#include "private/qtimerinfo_unix_p.h"
60
61QT_BEGIN_NAMESPACE
62
63class QEventDispatcherUNIXPrivate;
64
65struct Q_CORE_EXPORT QSocketNotifierSetUNIX final
66{
67 inline QSocketNotifierSetUNIX() noexcept;
68
69 inline bool isEmpty() const noexcept;
70 inline short events() const noexcept;
71
72 QSocketNotifier *notifiers[3];
73};
74
75Q_DECLARE_TYPEINFO(QSocketNotifierSetUNIX, Q_PRIMITIVE_TYPE);
76
77struct QThreadPipe
78{
79 QThreadPipe();
80 ~QThreadPipe();
81
82 bool init();
83 pollfd prepare() const;
84
85 void wakeUp();
86 int check(const pollfd &pfd);
87
88 // note for eventfd(7) support:
89 // if fds[1] is -1, then eventfd(7) is in use and is stored in fds[0]
90 int fds[2];
91 QAtomicInt wakeUps;
92
93#if defined(Q_OS_VXWORKS)
94 static const int len_name = 20;
95 char name[len_name];
96#endif
97};
98
99class Q_CORE_EXPORT QEventDispatcherUNIX : public QAbstractEventDispatcher
100{
101 Q_OBJECT
102 Q_DECLARE_PRIVATE(QEventDispatcherUNIX)
103
104public:
105 explicit QEventDispatcherUNIX(QObject *parent = nullptr);
106 ~QEventDispatcherUNIX();
107
108 bool processEvents(QEventLoop::ProcessEventsFlags flags) override;
109
110 void registerSocketNotifier(QSocketNotifier *notifier) final;
111 void unregisterSocketNotifier(QSocketNotifier *notifier) final;
112
113 void registerTimer(int timerId, qint64 interval, Qt::TimerType timerType, QObject *object) final;
114 bool unregisterTimer(int timerId) final;
115 bool unregisterTimers(QObject *object) final;
116 QList<TimerInfo> registeredTimers(QObject *object) const final;
117
118 int remainingTime(int timerId) final;
119
120 void wakeUp() override;
121 void interrupt() final;
122
123protected:
124 QEventDispatcherUNIX(QEventDispatcherUNIXPrivate &dd, QObject *parent = nullptr);
125};
126
127class Q_CORE_EXPORT QEventDispatcherUNIXPrivate : public QAbstractEventDispatcherPrivate
128{
129 Q_DECLARE_PUBLIC(QEventDispatcherUNIX)
130
131public:
132 QEventDispatcherUNIXPrivate();
133 ~QEventDispatcherUNIXPrivate();
134
135 int activateTimers();
136
137 void markPendingSocketNotifiers();
138 int activateSocketNotifiers();
139 void setSocketNotifierPending(QSocketNotifier *notifier);
140
141 QThreadPipe threadPipe;
142 QList<pollfd> pollfds;
143
144 QHash<int, QSocketNotifierSetUNIX> socketNotifiers;
145 QList<QSocketNotifier *> pendingNotifiers;
146
147 QTimerInfoList timerList;
148 QAtomicInt interrupt; // bool
149};
150
151inline QSocketNotifierSetUNIX::QSocketNotifierSetUNIX() noexcept
152{
153 notifiers[0] = nullptr;
154 notifiers[1] = nullptr;
155 notifiers[2] = nullptr;
156}
157
158inline bool QSocketNotifierSetUNIX::isEmpty() const noexcept
159{
160 return !notifiers[0] && !notifiers[1] && !notifiers[2];
161}
162
163inline short QSocketNotifierSetUNIX::events() const noexcept
164{
165 short result = 0;
166
167 if (notifiers[0])
168 result |= POLLIN;
169
170 if (notifiers[1])
171 result |= POLLOUT;
172
173 if (notifiers[2])
174 result |= POLLPRI;
175
176 return result;
177}
178
179QT_END_NAMESPACE
180
181#endif // QEVENTDISPATCHER_UNIX_P_H
182