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KDECore

k3bufferedsocket.h

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00001 /*  -*- C++ -*-
00002  *  Copyright (C) 2003,2005 Thiago Macieira <thiago@kde.org>
00003  *
00004  *
00005  *  Permission is hereby granted, free of charge, to any person obtaining
00006  *  a copy of this software and associated documentation files (the
00007  *  "Software"), to deal in the Software without restriction, including
00008  *  without limitation the rights to use, copy, modify, merge, publish,
00009  *  distribute, sublicense, and/or sell copies of the Software, and to
00010  *  permit persons to whom the Software is furnished to do so, subject to
00011  *  the following conditions:
00012  *
00013  *  The above copyright notice and this permission notice shall be included 
00014  *  in all copies or substantial portions of the Software.
00015  *
00016  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00017  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00018  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00019  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00020  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00021  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00022  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00023  */
00024 
00025 #ifndef KBUFFEREDSOCKET_H
00026 #define KBUFFEREDSOCKET_H
00027 
00028 #include <kdecore_export.h>
00029 #include "k3streamsocket.h"
00030 
00031 #include <QtCore/QObject>
00032 #include <QtCore/QByteArray>
00033 #include <QtCore/QList>
00034 
00035 namespace KNetwork {
00036 
00037 class KBufferedSocketPrivate;
00058 class KDECORE_EXPORT KBufferedSocket: public KStreamSocket
00059 {
00060   Q_OBJECT
00061 public:
00069   explicit KBufferedSocket(const QString& node = QString(), const QString& service = QString(),
00070           QObject* parent = 0L);
00071 
00075   virtual ~KBufferedSocket();
00076 
00080   virtual void setSocketDevice(KSocketDevice* device);
00081 
00082 protected:
00086   virtual bool setSocketOptions(int opts);
00087 
00088 public:
00095   virtual void close();
00096 
00100   virtual qint64 bytesAvailable() const;
00101 
00105   virtual qint64 waitForMore(int msecs, bool *timeout = 0L);
00106 
00110   virtual void enableRead(bool enable);
00111 
00115   virtual void enableWrite(bool enable);
00116 
00120   void setInputBuffering(bool enable);
00121 
00125   void setOutputBuffering(bool enable);
00126 
00130   virtual qint64 bytesToWrite() const;
00131 
00138   virtual void closeNow();
00139 
00143   virtual bool canReadLine() const;
00144 
00145   // KDE4: make virtual, add timeout to match the Qt4 signature
00146   //       and move to another class up the hierarchy
00151   void waitForConnect();
00152 
00153 protected:
00159   virtual qint64 readData(char *data, qint64 maxlen, KSocketAddress *from);
00160 
00166   virtual qint64 peekData(char *data, qint64 maxlen, KSocketAddress *from);
00167 
00173   virtual qint64 writeData(const char *data, qint64 len, const KSocketAddress* to);
00174 
00178   virtual qint64 readLineData(char *data, qint64 maxSize);
00179 
00183   virtual void stateChanging(SocketState newState);
00184 
00185 protected Q_SLOTS:
00189   virtual void slotReadActivity();
00190 
00194   virtual void slotWriteActivity();
00195 
00196 #if 0
00197   // Already present in QIODevice
00198 Q_SIGNALS:
00202   void bytesWritten(int bytes);
00203 #endif
00204 
00205 private:
00206   KBufferedSocket(const KBufferedSocket&);
00207   KBufferedSocket& operator=(const KBufferedSocket&);
00208 
00209   KBufferedSocketPrivate* const d;
00210 };
00211 
00212 }               // namespace KNetwork
00213 
00214 #endif

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