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#ifndef KBUFFEREDIO_H
00024
#define KBUFFEREDIO_H
00025
00026
#include <qcstring.h>
00027
#include <qptrlist.h>
00028
#include "kasyncio.h"
00029
00030
class KBufferedIOPrivate;
00059 class KBufferedIO:
public KAsyncIO
00060 {
00061 Q_OBJECT
00062
00063
protected:
00064
00065
KBufferedIO();
00066
00067
public:
00071 enum closeModes
00072 {
00073 availRead = 0x01,
00074 dirtyWrite = 0x02,
00075 involuntary = 0x10,
00076 delayed = 0x20,
00077 closedNow = 0x40
00078 };
00079
00084
virtual ~KBufferedIO();
00085
00094
virtual void closeNow() = 0;
00095
00117
virtual bool setBufferSize(
int rsize,
int wsize = -2);
00118
00123
virtual int bytesAvailable() const;
00124
00131 virtual
int waitForMore(
int msec) = 0;
00132
00137 virtual
int bytesToWrite() const;
00138
00147 virtual
bool canReadLine() const;
00148
00149
00150
00151
00152
00153
00154
00155
00168 virtual
int peekBlock(
char *data, uint maxlen) = 0;
00169
00182 virtual
int unreadBlock(const
char *data, uint len);
00183
00184 signals:
00189
void bytesWritten(
int nbytes);
00190
00191
00192
00193
00208
void closed(
int state);
00209
00210 protected:
00215 QPtrList<
QByteArray> inBuf;
00216
00221 QPtrList<
QByteArray> outBuf;
00222
00223
unsigned inBufIndex, outBufIndex;
00224
00235 virtual
unsigned consumeReadBuffer(
unsigned nbytes,
char *destbuffer,
bool discard = true);
00236
00248 virtual
void consumeWriteBuffer(
unsigned nbytes);
00249
00261 virtual
unsigned feedReadBuffer(
unsigned nbytes, const
char *buffer,
bool atBeginning = false);
00262
00271 virtual
unsigned feedWriteBuffer(
unsigned nbytes, const
char *buffer);
00272
00277 virtual
unsigned readBufferSize() const;
00278
00283 virtual
unsigned writeBufferSize() const;
00284
00285 protected:
00286 virtual
void virtual_hook(
int id,
void* data );
00287 private:
00288 KBufferedIOPrivate *d;
00289 };
00290
00291 #endif