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dataslave.h
1/*
2 * This file is part of the KDE libraries
3 * Copyright (c) 2003 Leo Savernik <l.savernik@aon.at>
4 * Derived from slave.h
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License version 2 as published by the Free Software Foundation.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 **/
20
21#ifndef __TDEIO_DATASLAVE_H__
22#define __TDEIO_DATASLAVE_H__
23
24#include <tdeio/global.h>
25#include <tdeio/slave.h>
26
27class TQTimer;
28
29// don't forget to sync DISPATCH_IMPL in dataslave.h
30#define DISPATCH_DECL(type) \
31 void dispatch_##type();
32
33// don't forget to sync DISPATCH_IMPL1 in dataslave.h
34#define DISPATCH_DECL1(type, paramtype, param) \
35 void dispatch_##type(paramtype param);
36
37namespace TDEIO {
38
48 class DataSlave : public TDEIO::Slave {
49 TQ_OBJECT
50 public:
51 DataSlave();
52
53 virtual ~DataSlave();
54
55 virtual void setHost(const TQString &host, int port,
56 const TQString &user, const TQString &passwd);
57 virtual void setConfig(const MetaData &config);
58
59 virtual void suspend();
60 virtual void resume();
61 virtual bool suspended();
62 virtual void send(int cmd, const TQByteArray &data = TQByteArray());
63
64 virtual void hold(const KURL &url);
65
66 // pure virtual methods that are defined by the actual protocol
67 virtual void get(const KURL &url) = 0;
68 virtual void mimetype(const KURL &url) = 0;
69
70 protected:
75 void setAllMetaData(const MetaData &);
80 void sendMetaData();
81
82 // queueing methods
84 enum QueueType { Queue_mimeType = 1, Queue_totalSize,
85 Queue_sendMetaData, Queue_data, Queue_finished };
89 struct QueueStruct {
90 QueueType type;
91 TQString s;
92 TDEIO::filesize_t size;
93 TQByteArray ba;
94
95 QueueStruct() {}
96 QueueStruct(QueueType type) : type(type) {}
97 };
98 typedef TQValueList<QueueStruct> DispatchQueue;
99 DispatchQueue dispatchQueue;
100
101 DISPATCH_DECL1(mimeType, const TQString &, s)
102 DISPATCH_DECL1(totalSize, TDEIO::filesize_t, size)
103 DISPATCH_DECL(sendMetaData)
104 DISPATCH_DECL1(data, const TQByteArray &, ba)
105 DISPATCH_DECL(finished)
106
107 protected slots:
111 void dispatchNext();
112 protected:
113 virtual void virtual_hook( int id, void* data );
114 private:
115 MetaData meta_data;
116 bool _suspended;
117 TQTimer *timer;
118 };
119
120}
121
122#undef DISPATCH_DECL
123#undef DISPATCH_DECL1
124
125#endif /*__TDEIO_DATASLAVE_H__*/
TDEIO::DataSlave
This class provides a high performance implementation for the data url scheme (rfc2397).
Definition: dataslave.h:48
TDEIO::DataSlave::dispatchNext
void dispatchNext()
dispatches next queued method.
Definition: dataslave.cpp:99
TDEIO::DataSlave::setAllMetaData
void setAllMetaData(const MetaData &)
Sets metadata.
Definition: dataslave.cpp:163
TDEIO::DataSlave::QueueType
QueueType
identifiers of functions to be queued
Definition: dataslave.h:84
TDEIO::DataSlave::sendMetaData
void sendMetaData()
Sends metadata set with setAllMetaData.
Definition: dataslave.cpp:167
TDEIO::MetaData
MetaData is a simple map of key/value strings.
Definition: global.h:516
TDEIO::Slave
Attention developers: If you change the implementation of TDEIO::Slave, do not use connection() or sl...
Definition: slave.h:44
TDEIO::Slave::passwd
TQString passwd()
Definition: slave.h:138
TDEIO::Slave::port
int port()
Definition: slave.h:128
TDEIO::Slave::user
TQString user()
Definition: slave.h:133
TDEIO::Slave::host
TQString host()
Definition: slave.h:123
TDEIO
A namespace for TDEIO globals.
Definition: authinfo.h:29
TDEIO::filesize_t
TQ_ULLONG filesize_t
64-bit file size
Definition: global.h:39
TDEIO::DataSlave::QueueStruct
structure for queueing.
Definition: dataslave.h:89

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