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40 | ****************************************************************************/ |
41 | |
42 | #ifndef QEVENTDISPATCHER_UNIX_P_H |
43 | #define QEVENTDISPATCHER_UNIX_P_H |
44 | |
45 | // |
46 | // W A R N I N G |
47 | // ------------- |
48 | // |
49 | // This file is not part of the Qt API. It exists purely as an |
50 | // implementation detail. This header file may change from version to |
51 | // version without notice, or even be removed. |
52 | // |
53 | // We mean it. |
54 | // |
55 | |
56 | #include "QtCore/qabstracteventdispatcher.h" |
57 | #include "QtCore/qlist.h" |
58 | #include "private/qabstracteventdispatcher_p.h" |
59 | #include "private/qcore_unix_p.h" |
60 | #include "private/qpodlist_p.h" |
61 | #include "QtCore/qvarlengtharray.h" |
62 | |
63 | #if !defined(Q_OS_VXWORKS) |
64 | # include <sys/time.h> |
65 | # if (!defined(Q_OS_HPUX) || defined(__ia64)) && !defined(Q_OS_NACL) |
66 | # include <sys/select.h> |
67 | # endif |
68 | #endif |
69 | |
70 | QT_BEGIN_NAMESPACE |
71 | |
72 | // internal timer info |
73 | struct QTimerInfo { |
74 | int id; // - timer identifier |
75 | timeval interval; // - timer interval |
76 | timeval timeout; // - when to sent event |
77 | QObject *obj; // - object to receive event |
78 | QTimerInfo **activateRef; // - ref from activateTimers |
79 | }; |
80 | |
81 | class QTimerInfoList : public QList<QTimerInfo*> |
82 | { |
83 | #if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED) |
84 | timeval previousTime; |
85 | clock_t previousTicks; |
86 | int ticksPerSecond; |
87 | int msPerTick; |
88 | |
89 | bool timeChanged(timeval *delta); |
90 | #endif |
91 | |
92 | // state variables used by activateTimers() |
93 | QTimerInfo *firstTimerInfo; |
94 | |
95 | public: |
96 | QTimerInfoList(); |
97 | |
98 | timeval currentTime; |
99 | timeval updateCurrentTime(); |
100 | |
101 | // must call updateCurrentTime() first! |
102 | void repairTimersIfNeeded(); |
103 | |
104 | bool timerWait(timeval &); |
105 | void timerInsert(QTimerInfo *); |
106 | void timerRepair(const timeval &); |
107 | |
108 | void registerTimer(int timerId, int interval, QObject *object); |
109 | bool unregisterTimer(int timerId); |
110 | bool unregisterTimers(QObject *object); |
111 | QList<QPair<int, int> > registeredTimers(QObject *object) const; |
112 | |
113 | int activateTimers(); |
114 | }; |
115 | |
116 | struct QSockNot |
117 | { |
118 | QSocketNotifier *obj; |
119 | int fd; |
120 | fd_set *queue; |
121 | }; |
122 | |
123 | class QSockNotType |
124 | { |
125 | public: |
126 | QSockNotType(); |
127 | ~QSockNotType(); |
128 | |
129 | typedef QPodList<QSockNot*, 32> List; |
130 | |
131 | List list; |
132 | fd_set select_fds; |
133 | fd_set enabled_fds; |
134 | fd_set pending_fds; |
135 | |
136 | }; |
137 | |
138 | class QEventDispatcherUNIXPrivate; |
139 | |
140 | class Q_CORE_EXPORT QEventDispatcherUNIX : public QAbstractEventDispatcher |
141 | { |
142 | Q_OBJECT |
143 | Q_DECLARE_PRIVATE(QEventDispatcherUNIX) |
144 | |
145 | public: |
146 | explicit QEventDispatcherUNIX(QObject *parent = 0); |
147 | ~QEventDispatcherUNIX(); |
148 | |
149 | bool processEvents(QEventLoop::ProcessEventsFlags flags); |
150 | bool hasPendingEvents(); |
151 | |
152 | void registerSocketNotifier(QSocketNotifier *notifier); |
153 | void unregisterSocketNotifier(QSocketNotifier *notifier); |
154 | |
155 | void registerTimer(int timerId, int interval, QObject *object); |
156 | bool unregisterTimer(int timerId); |
157 | bool unregisterTimers(QObject *object); |
158 | QList<TimerInfo> registeredTimers(QObject *object) const; |
159 | |
160 | void wakeUp(); |
161 | void interrupt(); |
162 | void flush(); |
163 | |
164 | protected: |
165 | QEventDispatcherUNIX(QEventDispatcherUNIXPrivate &dd, QObject *parent = 0); |
166 | |
167 | void setSocketNotifierPending(QSocketNotifier *notifier); |
168 | |
169 | int activateTimers(); |
170 | int activateSocketNotifiers(); |
171 | |
172 | virtual int select(int nfds, |
173 | fd_set *readfds, fd_set *writefds, fd_set *exceptfds, |
174 | timeval *timeout); |
175 | }; |
176 | |
177 | class Q_CORE_EXPORT QEventDispatcherUNIXPrivate : public QAbstractEventDispatcherPrivate |
178 | { |
179 | Q_DECLARE_PUBLIC(QEventDispatcherUNIX) |
180 | |
181 | public: |
182 | QEventDispatcherUNIXPrivate(); |
183 | ~QEventDispatcherUNIXPrivate(); |
184 | |
185 | int doSelect(QEventLoop::ProcessEventsFlags flags, timeval *timeout); |
186 | virtual int initThreadWakeUp(); |
187 | virtual int processThreadWakeUp(int nsel); |
188 | |
189 | bool mainThread; |
190 | int thread_pipe[2]; |
191 | |
192 | // highest fd for all socket notifiers |
193 | int sn_highest; |
194 | // 3 socket notifier types - read, write and exception |
195 | QSockNotType sn_vec[3]; |
196 | |
197 | QTimerInfoList timerList; |
198 | |
199 | // pending socket notifiers list |
200 | QSockNotType::List sn_pending_list; |
201 | |
202 | QAtomicInt wakeUps; |
203 | bool interrupt; |
204 | }; |
205 | |
206 | QT_END_NAMESPACE |
207 | |
208 | #endif // QEVENTDISPATCHER_UNIX_P_H |
209 | |