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
|
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef TRKDEVICE_H
#define TRKDEVICE_H
#include "symbianutils_global.h"
#include "callback.h"
#include <QtCore/QObject>
#include <QtCore/QVariant>
#include <QtCore/QByteArray>
#include <QtCore/QSharedPointer>
QT_BEGIN_NAMESPACE
class QIODevice;
QT_END_NAMESPACE
namespace trk {
struct TrkResult;
struct TrkMessage;
struct TrkDevicePrivate;
/* TrkDevice: Implements a Windows COM or Linux device for
* Trk communications. Provides synchronous write and asynchronous
* read operation.
* The serialFrames property specifies whether packets are encapsulated in
* "0x90 <length>" frames, which is currently the case for serial ports.
* Contains a write message queue allowing
* for queueing messages with a notification callback. If the message receives
* an ACK, the callback is invoked.
* The special message TRK_WRITE_QUEUE_NOOP_CODE code can be used for synchronization.
* The respective message will not be sent, the callback is just invoked.
* Note that calling open/close in quick succession can cause crashes
* due to the use of queused signals. */
enum { TRK_WRITE_QUEUE_NOOP_CODE = 0x7f };
typedef trk::Callback<const TrkResult &> TrkCallback;
class SYMBIANUTILS_EXPORT TrkDevice : public QObject
{
Q_OBJECT
Q_PROPERTY(bool serialFrame READ serialFrame WRITE setSerialFrame)
Q_PROPERTY(bool verbose READ verbose WRITE setVerbose)
Q_PROPERTY(QString port READ port WRITE setPort)
public:
explicit TrkDevice(QObject *parent = 0);
virtual ~TrkDevice();
bool open(QString *errorMessage);
bool isOpen() const;
QString port() const;
void setPort(const QString &p);
QString errorString() const;
bool serialFrame() const;
void setSerialFrame(bool f);
int verbose() const;
void setVerbose(int b);
// Enqueue a message with a notification callback.
void sendTrkMessage(unsigned char code,
TrkCallback callBack = TrkCallback(),
const QByteArray &data = QByteArray(),
const QVariant &cookie = QVariant());
// Enqeue an initial ping
void sendTrkInitialPing();
// Send an Ack synchronously, bypassing the queue
bool sendTrkAck(unsigned char token);
public slots:
void clearWriteQueue();
signals:
void messageReceived(const trk::TrkResult &result);
// Emitted with the contents of messages enclosed in 07e, not for log output
void rawDataReceived(const QByteArray &data);
void error(const QString &msg);
void logMessage(const QString &msg);
private slots:
void slotMessageReceived(const trk::TrkResult &result, const QByteArray &a);
protected slots:
void emitError(const QString &msg);
void emitLogMessage(const QString &msg);
public slots:
void close();
private:
void readMessages();
TrkDevicePrivate *d;
};
} // namespace trk
#endif // TRKDEVICE_H
|
