QtSparql  0.2.6
qsparql_tracker_direct_driver_p.h
1 /****************************************************************************
2 **
3 ** Copyright (C) 2010-2011 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (ivan.frade@nokia.com)
6 **
7 ** This file is part of the QtSparql module (not yet part of the Qt Toolkit).
8 **
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
12 ** License version 2.1 as published by the Free Software Foundation and
13 ** appearing in the file LICENSE.LGPL included in the packaging of this
14 ** file. Please review the following information to ensure the GNU Lesser
15 ** General Public License version 2.1 requirements will be met:
16 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
17 **
18 ** In addition, as a special exception, Nokia gives you certain additional
19 ** rights. These rights are described in the Nokia Qt LGPL Exception
20 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 **
22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
25 ** and appearing in the file LICENSE.GPL included in the packaging of this
26 ** file. Please review the following information to ensure the GNU General
27 ** Public License version 3.0 requirements will be met:
28 ** http://www.gnu.org/copyleft/gpl.html.
29 **
30 ** Other Usage
31 ** Alternatively, this file may be used in accordance with the terms and
32 ** conditions contained in a signed written agreement between you and Nokia.
33 **
34 ** If you have questions regarding the use of this file, please contact
35 ** Nokia at ivan.frade@nokia.com.
36 ** $QT_END_LICENSE$
37 **
38 ****************************************************************************/
39 
40 #ifndef QSPARQL_TRACKER_DIRECT_DRIVER_P_H
41 #define QSPARQL_TRACKER_DIRECT_DRIVER_P_H
42 
43 #include <tracker-sparql.h>
44 
45 #include <qsparqlqueryoptions.h>
46 #include <qsparqlerror.h>
47 
48 #include <QtCore/qmutex.h>
49 #include <QtCore/qthreadpool.h>
50 #include <QtCore/qpointer.h>
51 
52 QT_BEGIN_HEADER
53 
54 QT_BEGIN_NAMESPACE
55 
56 class QTrackerDirectDriver;
57 class QTrackerDirectSelectResult;
58 class QTrackerDirectResult;
59 class QTrackerDirectDriverConnectionOpen;
60 
61 class QTrackerDirectDriverPrivate : public QObject
62 {
63  Q_OBJECT
64 public:
65  QTrackerDirectDriverPrivate(QTrackerDirectDriver *driver);
66  ~QTrackerDirectDriverPrivate();
67 
68  void onConnectionOpen(QObject* object, const char* method, const char* slot);
69  void waitForConnectionOpen();
70  void openConnection();
71 
72  TrackerSparqlConnection *connection;
73  int dataReadyInterval;
74  // This mutex is for ensuring that only one thread at a time
75  // is using the connection to make tracker queries. This mutex
76  // probably isn't needed as a TrackerSparqlConnection is
77  // already thread safe.
78  QMutex connectionMutex;
79  QTrackerDirectDriver *driver;
80  QString error;
81  bool asyncOpenCalled;
82 
83  QThreadPool threadPool;
84 
85  // We'll keep track of sync results using this list and method
86  QList<QPointer<QTrackerDirectResult> > activeSyncResults;
87  void addActiveSyncResult(QTrackerDirectResult *result);
88 
89 private Q_SLOTS:
90  void asyncOpenComplete();
91 
92 private:
93  friend class QTrackerDirectDriverConnectionOpen;
94  void checkConnectionError(TrackerSparqlConnection *conn, GError* gerr);
95  QTrackerDirectDriverConnectionOpen *connectionOpener;
96 };
97 
98 QVariant readVariant(TrackerSparqlCursor* cursor, int col);
99 QSparqlError::ErrorType errorCodeToType(gint code);
100 gint qSparqlPriorityToGlib(QSparqlQueryOptions::Priority priority);
101 
102 QT_END_NAMESPACE
103 
104 QT_END_HEADER
105 
106 #endif // QSPARQL_TRACKER_DIRECT_DRIVER_P_H
QSparqlError::ErrorType
ErrorType
Definition: qsparqlerror.h:67
QSparqlQueryOptions::Priority
Priority
Definition: qsparqlqueryoptions.h:82