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
|
// This may look like C code, but it's really -*- C++ -*-
/*
* Copyright (C) 2008 Emweb bvba, Kessel-Lo, Belgium.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef DISPATCH_THREAD_H_
#define DISPATCH_THREAD_H_
#include <QThread>
#include <boost/thread.hpp>
#include <boost/thread/condition.hpp>
namespace Wt {
class WQApplication;
class WEvent;
class DispatchThread;
/*
* Help object used to dispatch an event into a Qt event loop.
*/
class DispatchObject : public QObject
{
Q_OBJECT;
public:
DispatchObject(DispatchThread *thread);
void propagateEvent();
signals:
void doEvent();
private slots:
void onEvent();
private:
DispatchThread *thread_;
};
/*
* Thread in which all interaction with Qt objects is done.
*
* If constructed <i>withEventLoop</i>, then QThread::exec() is
* called, starting a new Qt event loop, and signal/slot events can be
* delivered within the event loop handling. Otherwise, plain thread
* synchronization is implemented.
*/
class DispatchThread : public QThread
{
public:
DispatchThread(WQApplication *app, bool withEventLoop);
virtual void run();
void notify(const WEvent& event);
void destroy();
void waitDone();
private:
WQApplication *app_;
bool qtEventLoop_;
DispatchObject *dispatchObject_;
const WEvent *event_;
boost::mutex doneMutex_;
bool done_;
boost::condition doneCondition_;
boost::mutex newEventMutex_;
bool newEvent_;
boost::condition newEventCondition_;
bool doEvent();
void signalDone();
void myExec();
void myPropagateEvent();
friend class DispatchObject;
};
}
#endif // DISPATCH_THREAD_H_
|
