source: trunk/src/dbus/qdbuspendingreply.cpp@ 1030

Last change on this file since 1030 was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

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1/****************************************************************************
2**
3** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtDBus module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
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12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
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16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
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23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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28** GNU General Public License Usage
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30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
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33** ensure the GNU General Public License version 3.0 requirements will be
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40****************************************************************************/
41
42#include "qdbuspendingreply.h"
43#include "qdbuspendingcall_p.h"
44#include "qdbusmetatype.h"
45
46#ifndef QT_NO_DBUS
47
48/*!
49 \class QDBusPendingReply
50 \inmodule QtDBus
51 \since 4.5
52
53 \brief The QDBusPendingReply class contains the reply to an asynchronous method call
54
55 The QDBusPendingReply is a template class with up to 8 template
56 parameters. Those parameters are the types that will be used to
57 extract the contents of the reply's data.
58
59 This class is similar in functionality to QDBusReply, but with two
60 important differences:
61
62 \list
63 \o QDBusReply accepts exactly one return type, whereas
64 QDBusPendingReply can have from 1 to 8 types
65 \o QDBusReply only works on already completed replies, whereas
66 QDBusPendingReply allows one to wait for replies from pending
67 calls
68 \endlist
69
70 Where with QDBusReply you would write:
71
72 \snippet doc/src/snippets/code/src_qdbus_qdbusreply.cpp 0
73
74 with QDBusPendingReply, the equivalent code (including the blocking
75 wait for the reply) would be:
76
77 \snippet doc/src/snippets/code/src.qdbus.qdbuspendingreply.cpp 0
78
79 For method calls that have more than one output argument, with
80 QDBusReply, you would write:
81
82 \snippet doc/src/snippets/code/src_qdbus_qdbusreply.cpp 1
83
84 whereas with QDBusPendingReply, all of the output arguments should
85 be template parameters:
86
87 \snippet doc/src/snippets/code/src.qdbus.qdbuspendingreply.cpp 2
88
89 QDBusPendingReply objects can be associated with
90 QDBusPendingCallWatcher objects, which emit signals when the reply
91 arrives.
92
93 \sa QDBusPendingCallWatcher, QDBusReply,
94 QDBusAbstractInterface::asyncCall()
95*/
96
97/*!
98 \fn QDBusPendingReply::QDBusPendingReply()
99
100 Creates an empty QDBusPendingReply object. Without assigning a
101 QDBusPendingCall object to this reply, QDBusPendingReply cannot do
102 anything. All functions return their failure values.
103*/
104
105/*!
106 \fn QDBusPendingReply::QDBusPendingReply(const QDBusPendingReply &other)
107
108 Creates a copy of the \a other QDBusPendingReply object. Just like
109 QDBusPendingCall and QDBusPendingCallWatcher, this QDBusPendingReply
110 object will share the same pending call reference. All copies
111 share the same return values.
112*/
113
114/*!
115 \fn QDBusPendingReply::QDBusPendingReply(const QDBusPendingCall &call)
116
117 Creates a QDBusPendingReply object that will take its contents from
118 the \a call pending asynchronous call. This QDBusPendingReply object
119 will share the same pending call reference as \a call.
120*/
121
122/*!
123 \fn QDBusPendingReply::QDBusPendingReply(const QDBusMessage &message)
124
125 Creates a QDBusPendingReply object that will take its contents from
126 the message \a message. In this case, this object will be already
127 in its finished state and the reply's contents will be accessible.
128