summaryrefslogtreecommitdiffstats
path: root/src/kernel/qthread.h
blob: 675e3a30518c69acf38bd54355966615f8fa59d0 (plain)
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
/****************************************************************************
**
** Definition of QThread class
**
** Created : 931107
**
** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file.  Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/

#ifndef QTHREAD_H
#define QTHREAD_H

#if defined(QT_THREAD_SUPPORT)

#ifndef QT_H
#include "qwindowdefs.h"
#ifndef QT_NO_COMPAT
#include "qmutex.h"
#include "qsemaphore.h"
#include "qwaitcondition.h"
#endif // QT_NO_COMPAT
#endif // QT_H

#include <limits.h>

class QThreadInstance;

class Q_EXPORT QThread : public Qt
{
public:
    static Qt::HANDLE currentThread();

#ifndef QT_NO_COMPAT
    static void postEvent( QObject *,QEvent * );
#endif

    static void initialize();
    static void cleanup();

    static void exit();

#ifdef Q_QDOC
    QThread( unsigned int stackSize = 0 );
#else
    QThread( unsigned int stackSize );
    QThread();
#endif

    virtual ~QThread();

    // default argument causes thread to block indefinately
    bool wait( unsigned long time = ULONG_MAX );

    enum Priority {
	IdlePriority,

	LowestPriority,
	LowPriority,
	NormalPriority,
	HighPriority,
	HighestPriority,

	TimeCriticalPriority,

	InheritPriority
    };

#ifdef Q_QDOC
    void start( Priority = InheritPriority );
#else
    void start( Priority );
    void start();
#endif

    void terminate();

    bool finished() const;
    bool running() const;

    enum CleanupType {
	CleanupNone,
	CleanupMergeObjects
    };

    CleanupType cleanupType() const;
    void setCleanupType(CleanupType);

    bool threadPostedEventsDisabled() const;
    void setThreadPostedEventsDisabled(bool);

protected:
    virtual void run() = 0;

    static void sleep( unsigned long );
    static void msleep( unsigned long );
    static void usleep( unsigned long );

private:
    QThreadInstance * d;
    friend class QThreadInstance;
    friend class QCoreApplicationThread;
    friend class QApplication;
    friend class QEventLoop;

#if defined(Q_DISABLE_COPY)
    QThread( const QThread & );
    QThread &operator=( const QThread & );
#endif // Q_DISABLE_COPY

public:
    static QThread* currentThreadObject();
};

class Q_EXPORT QEventLoopThread : public QThread
{
    public:
        QEventLoopThread();
        ~QEventLoopThread();
        virtual void run();
};

#endif // QT_THREAD_SUPPORT

#endif // QTHREAD_H