summaryrefslogtreecommitdiffstats
path: root/qtools/qiodevice.h
diff options
context:
space:
mode:
Diffstat (limited to 'qtools/qiodevice.h')
-rw-r--r--qtools/qiodevice.h155
1 files changed, 155 insertions, 0 deletions
diff --git a/qtools/qiodevice.h b/qtools/qiodevice.h
new file mode 100644
index 0000000..1c54217
--- /dev/null
+++ b/qtools/qiodevice.h
@@ -0,0 +1,155 @@
+/****************************************************************************
+**
+**
+** Definition of QIODevice class
+**
+** Created : 940913
+**
+** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
+**
+** This file is part of the tools module of the Qt GUI Toolkit.
+**
+** This file may be distributed under the terms of the Q Public License
+** as defined by Trolltech AS of Norway and appearing in the file
+** LICENSE.QPL included in the packaging of this file.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
+** licenses may use this file in accordance with the Qt Commercial License
+** Agreement provided with the Software.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
+** information about Qt Commercial License Agreements.
+** See http://www.trolltech.com/qpl/ for QPL licensing information.
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#ifndef QIODEVICE_H
+#define QIODEVICE_H
+
+#ifndef QT_H
+#include "qglobal.h"
+#include "qcstring.h"
+#endif // QT_H
+
+
+// IO device access types
+
+#define IO_Direct 0x0100 // direct access device
+#define IO_Sequential 0x0200 // sequential access device
+#define IO_Combined 0x0300 // combined direct/sequential
+#define IO_TypeMask 0x0f00
+
+// IO handling modes
+
+#define IO_Raw 0x0040 // raw access (not buffered)
+#define IO_Async 0x0080 // asynchronous mode
+
+// IO device open modes
+
+#define IO_ReadOnly 0x0001 // readable device
+#define IO_WriteOnly 0x0002 // writable device
+#define IO_ReadWrite 0x0003 // read+write device
+#define IO_Append 0x0004 // append
+#define IO_Truncate 0x0008 // truncate device
+#define IO_Translate 0x0010 // translate CR+LF
+#define IO_ModeMask 0x00ff
+
+// IO device state
+
+#define IO_Open 0x1000 // device is open
+#define IO_StateMask 0xf000
+
+
+// IO device status
+
+#define IO_Ok 0
+#define IO_ReadError 1 // read error
+#define IO_WriteError 2 // write error
+#define IO_FatalError 3 // fatal unrecoverable error
+#define IO_ResourceError 4 // resource limitation
+#define IO_OpenError 5 // cannot open device
+#define IO_ConnectError 5 // cannot connect to device
+#define IO_AbortError 6 // abort error
+#define IO_TimeOutError 7 // time out
+#define IO_UnspecifiedError 8 // unspecified error
+
+class Q_EXPORT QIODevice // IO device class
+{
+public:
+ QIODevice();
+ virtual ~QIODevice();
+
+ int flags() const { return ioMode; }
+ int mode() const { return ioMode & IO_ModeMask; }
+ int state() const { return ioMode & IO_StateMask; }
+
+ bool isDirectAccess() const { return ((ioMode & IO_Direct) == IO_Direct); }
+ bool isSequentialAccess() const { return ((ioMode & IO_Sequential) == IO_Sequential); }
+ bool isCombinedAccess() const { return ((ioMode & IO_Combined) == IO_Combined); }
+ bool isBuffered() const { return ((ioMode & IO_Raw) != IO_Raw); }
+ bool isRaw() const { return ((ioMode & IO_Raw) == IO_Raw); }
+ bool isSynchronous() const { return ((ioMode & IO_Async) != IO_Async); }
+ bool isAsynchronous() const { return ((ioMode & IO_Async) == IO_Async); }
+ bool isTranslated() const { return ((ioMode & IO_Translate) == IO_Translate); }
+ bool isReadable() const { return ((ioMode & IO_ReadOnly) == IO_ReadOnly); }
+ bool isWritable() const { return ((ioMode & IO_WriteOnly) == IO_WriteOnly); }
+ bool isReadWrite() const { return ((ioMode & IO_ReadWrite) == IO_ReadWrite); }
+ bool isInactive() const { return state() == 0; }
+ bool isOpen() const { return state() == IO_Open; }
+
+ int status() const { return ioSt; }
+ void resetStatus() { ioSt = IO_Ok; }
+
+ virtual bool open( int mode ) = 0;
+ virtual void close() = 0;
+ virtual void flush() = 0;
+
+ virtual uint size() const = 0;
+ virtual int at() const;
+ virtual bool at( int );
+ virtual bool atEnd() const;
+ bool reset() { return at(0); }
+
+ virtual int readBlock( char *data, uint maxlen ) = 0;
+ virtual int writeBlock( const char *data, uint len ) = 0;
+ virtual int readLine( char *data, uint maxlen );
+ int writeBlock( const QByteArray& data );
+ QByteArray readAll();
+
+ virtual int getch() = 0;
+ virtual int putch( int ) = 0;
+ virtual int ungetch( int ) = 0;
+
+protected:
+ void setFlags( int f ) { ioMode = f; }
+ void setType( int );
+ void setMode( int );
+ void setState( int );
+ void setStatus( int );
+ int ioIndex;
+
+private:
+ int ioMode;
+ int ioSt;
+
+private: // Disabled copy constructor and operator=
+#if defined(Q_DISABLE_COPY)
+ QIODevice( const QIODevice & );
+ QIODevice &operator=( const QIODevice & );
+#endif
+};
+
+
+#endif // QIODEVICE_H