QMdnsEngine 0.2.1
Multicast DNS library for Qt applications
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cache.h
1/*
2 * The MIT License (MIT)
3 *
4 * Copyright (c) 2017 Nathan Osman
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 */
24
25#ifndef QMDNSENGINE_CACHE_H
26#define QMDNSENGINE_CACHE_H
27
28#include <QList>
29#include <QObject>
30
31#include "qmdnsengine_export.h"
32
33namespace QMdnsEngine
34{
35
36class Record;
37
38class QMDNSENGINE_EXPORT CachePrivate;
39
65class QMDNSENGINE_EXPORT Cache : public QObject
66{
67 Q_OBJECT
68
69public:
70
74 explicit Cache(QObject *parent = 0);
75
84 void addRecord(const Record &record);
85
97 bool lookupRecord(const QByteArray &name, quint16 type, Record &record) const;
98
106 bool lookupRecords(const QByteArray &name, quint16 type, QList<Record> &records) const;
107
108Q_SIGNALS:
109
117 void shouldQuery(const Record &record);
118
123 void recordExpired(const Record &record);
124
125private:
126
127 CachePrivate *const d;
128};
129
130}
131
132#endif // QMDNSENGINE_CACHE_H
Cache(QObject *parent=0)
Create an empty cache.
void recordExpired(const Record &record)
Indicate that the specified record expired.
void addRecord(const Record &record)
Add a record to the cache.
bool lookupRecord(const QByteArray &name, quint16 type, Record &record) const
Retrieve a single record from the cache.
bool lookupRecords(const QByteArray &name, quint16 type, QList< Record > &records) const
Retrieve multiple records from the cache.
void shouldQuery(const Record &record)
Indicate that a record will expire soon and a new query should be issued.
DNS record.
Definition record.h:60