1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QTHREAD_P_H
#define QTHREAD_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 "qplatformdefs.h"
#include "QtCore/qthread.h"
#include "QtCore/qmutex.h"
#include "QtCore/qstack.h"
#include "QtCore/qwaitcondition.h"
#include "QtCore/qmap.h"
#include "private/qobject_p.h"
QT_BEGIN_NAMESPACE
class QAbstractEventDispatcher;
class QEventLoop;
class QPostEvent
{
public:
QObject *receiver;
QEvent *event;
int priority;
inline QPostEvent()
: receiver(0), event(0), priority(0)
{ }
inline QPostEvent(QObject *r, QEvent *e, int p)
: receiver(r), event(e), priority(p)
{ }
};
inline bool operator<(int priority, const QPostEvent &pe)
{
return pe.priority < priority;
}
inline bool operator<(const QPostEvent &pe, int priority)
{
return priority < pe.priority;
}
class QPostEventList : public QList<QPostEvent>
{
public:
// recursion == recursion count for sendPostedEvents()
int recursion;
// sendOffset == the current event to start sending
int startOffset;
// insertionOffset == set by sendPostedEvents to tell postEvent() where to start insertions
int insertionOffset;
QMutex mutex;
inline QPostEventList()
: QList<QPostEvent>(), recursion(0), startOffset(0), insertionOffset(0)
{ }
};
class Q_CORE_EXPORT QThreadData
{
QAtomicInt _ref;
public:
QThreadData(int initialRefCount = 1);
~QThreadData();
static QThreadData *current();
static QThreadData *get2(QThread *thread);
void ref();
void deref();
QThread *thread;
bool quitNow;
int loopLevel;
QAbstractEventDispatcher *eventDispatcher;
QStack<QEventLoop *> eventLoops;
QPostEventList postEventList;
bool canWait;
QMap<int, void *> tls;
QMutex mutex;
};
#ifndef QT_NO_THREAD
class QThreadPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QThread)
public:
QThreadPrivate(QThreadData *d = 0);
~QThreadPrivate();
mutable QMutex mutex;
bool running;
bool finished;
bool terminated;
uint stackSize;
QThread::Priority priority;
static QThread *threadForId(int id);
#ifdef Q_OS_UNIX
pthread_t thread_id;
QWaitCondition thread_done;
static void *start(void *arg);
static void finish(void *arg);
#endif
#if defined(Q_OS_WIN32) || defined(Q_OS_WINCE)
HANDLE handle;
unsigned int id;
int waiters;
bool terminationEnabled, terminatePending;
static unsigned int __stdcall start(void *);
static void finish(void *, bool lockAnyway=true);
#endif // Q_OS_WIN32
QThreadData *data;
static void createEventDispatcher(QThreadData *data);
};
// thread wrapper for the main() thread
class QAdoptedThread : public QThread
{
Q_DECLARE_PRIVATE(QThread)
public:
QAdoptedThread(QThreadData *data = 0);
~QAdoptedThread();
void init();
static QThread *createThreadForAdoption();
private:
void run();
};
#else // QT_NO_THREAD
class QThreadPrivate : public QObjectPrivate
{
public:
QThreadPrivate() : data(QThreadData::current()) {}
~QThreadPrivate() { }
QThreadData *data;
static void setCurrentThread(QThread*) {}
static QThread *threadForId(int) { return QThread::currentThread(); }
static void createEventDispatcher(QThreadData *data);
Q_DECLARE_PUBLIC(QThread)
};
#endif // QT_NO_THREAD
QT_END_NAMESPACE
#endif // QTHREAD_P_H
|
