1/****************************************************************************
2**
3** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
4** Contact: http://www.qt-project.org/legal
5**
6** This file is part of the QtDBus module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
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15** use the contact form at http://qt.digia.com/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 2.1 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 2.1 requirements
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25** In addition, as a special exception, Digia gives you certain additional
26** rights. These rights are described in the Digia Qt LGPL Exception
27** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28**
29** GNU General Public License Usage
30** Alternatively, this file may be used under the terms of the GNU
31** General Public License version 3.0 as published by the Free Software
32** Foundation and appearing in the file LICENSE.GPL included in the
33** packaging of this file. Please review the following information to
34** ensure the GNU General Public License version 3.0 requirements will be
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40****************************************************************************/
41
42//
43// W A R N I N G
44// -------------
45//
46// This file is not part of the public API. This header file may
47// change from version to version without notice, or even be
48// removed.
49//
50// We mean it.
51//
52//
53
54#ifndef QDBUSPENDINGCALL_P_H
55#define QDBUSPENDINGCALL_P_H
56
57#include <qshareddata.h>
58#include <qpointer.h>
59#include <qlist.h>
60#include <qmutex.h>
61#include <qwaitcondition.h>
62
63#include "qdbusmessage.h"
64#include "qdbus_symbols_p.h"
65
66#ifndef QT_NO_DBUS
67
68QT_BEGIN_NAMESPACE
69
70class QDBusPendingCall;
71class QDBusPendingCallWatcher;
72class QDBusPendingCallWatcherHelper;
73class QDBusConnectionPrivate;
74
75class QDBusPendingCallPrivate: public QSharedData
76{
77public:
78 // {
79 // set only during construction:
80 const QDBusMessage sentMessage;
81 QDBusConnectionPrivate * const connection;
82
83 // for the callback mechanism (see setReplyCallback and QDBusConnectionPrivate::sendWithReplyAsync)
84 QPointer<QObject> receiver;
85 QList<int> metaTypes;
86 int methodIdx;
87
88 // }
89
90 mutable QMutex mutex;
91 QWaitCondition waitForFinishedCondition;
92
93 // {
94 // protected by the mutex above:
95 QDBusPendingCallWatcherHelper *watcherHelper;
96 QDBusMessage replyMessage;
97 DBusPendingCall *pending;
98 volatile bool waitingForFinished;
99
100 QString expectedReplySignature;
101 int expectedReplyCount;
102 // }
103
104 QDBusPendingCallPrivate(const QDBusMessage &sent, QDBusConnectionPrivate *connection)
105 : sentMessage(sent), connection(connection), watcherHelper(0), pending(0), waitingForFinished(false)
106 { }
107 ~QDBusPendingCallPrivate();
108 bool setReplyCallback(QObject *target, const char *member);
109 void waitForFinished();
110 void setMetaTypes(int count, const int *types);
111 void checkReceivedSignature();
112
113 static QDBusPendingCall fromMessage(const QDBusMessage &msg);
114};
115
116class QDBusPendingCallWatcherHelper: public QObject
117{
118 Q_OBJECT
119public:
120 void add(QDBusPendingCallWatcher *watcher);
121
122 void emitSignals(const QDBusMessage &replyMessage, const QDBusMessage &sentMessage)
123 {
124 if (replyMessage.type() == QDBusMessage::ReplyMessage)
125 emit reply(replyMessage);
126 else
127 emit error(replyMessage, sentMessage);
128 emit finished();
129 }
130
131Q_SIGNALS:
132 void finished();
133 void reply(const QDBusMessage &msg);
134 void error(const QDBusError &error, const QDBusMessage &msg);
135};
136
137QT_END_NAMESPACE
138
139#endif // QT_NO_DBUS
140#endif
141