source: trunk/examples/network/torrent/connectionmanager.cpp

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

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

File size: 3.0 KB
Line 
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 examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:BSD$
10** You may use this file under the terms of the BSD license as follows:
11**
12** "Redistribution and use in source and binary forms, with or without
13** modification, are permitted provided that the following conditions are
14** met:
15** * Redistributions of source code must retain the above copyright
16** notice, this list of conditions and the following disclaimer.
17** * Redistributions in binary form must reproduce the above copyright
18** notice, this list of conditions and the following disclaimer in
19** the documentation and/or other materials provided with the
20** distribution.
21** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
22** the names of its contributors may be used to endorse or promote
23** products derived from this software without specific prior written
24** permission.
25**
26** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
37** $QT_END_LICENSE$
38**
39****************************************************************************/
40
41#include "connectionmanager.h"
42
43#include <QByteArray>
44#include <QDateTime>
45
46static const int MaxConnections = 250;
47
48Q_GLOBAL_STATIC(ConnectionManager, connectionManager)
49
50ConnectionManager *ConnectionManager::instance()
51{
52 return connectionManager();
53}
54
55bool ConnectionManager::canAddConnection() const
56{
57 return (connections.size() < MaxConnections);
58}
59
60void ConnectionManager::addConnection(PeerWireClient *client)
61{
62 connections << client;
63}
64
65void ConnectionManager::removeConnection(PeerWireClient *client)
66{
67 connections.remove(client);
68}
69
70int ConnectionManager::maxConnections() const
71{
72 return MaxConnections;
73}
74
75QByteArray ConnectionManager::clientId() const
76{
77 if (id.isEmpty()) {
78 // Generate peer id
79 int startupTime = int(QDateTime::currentDateTime().toTime_t());
80
81 QString s;
82 s.sprintf("-QT%04x-", (QT_VERSION % 0xffff00) >> 8);
83 id += s.toLatin1();
84 id += QByteArray::number(startupTime, 10);
85 id += QByteArray(20 - id.size(), '-');
86 }
87 return id;
88}
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