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The first version of this file has been created by me, having been directly derived from a BeOS R5 header. To avoid copyright problems I remove it now and rewrite it from the scratch. Hang on...

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3422 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2003-06-04 17:56:00 +00:00
parent fb71d3a960
commit e56907d4fd
1 changed files with 0 additions and 201 deletions
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201
headers/os/support/DataIO.h
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@ -1,201 +0,0 @@
//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: DataIO.h
// Author(s): Jack Burton (burton666@libero.it)
// Description: Pure virtual BDataIO and BPositioIO classes provide
// the protocol for Read()/Write()/Seek().
//
// BMallocIO and BMemoryIO classes implement the protocol,
// as does BFile in the Storage Kit.
//------------------------------------------------------------------------------
#ifndef _DATA_IO_H
#define _DATA_IO_H
// Standard Includes -----------------------------------------------------------
// System Includes -------------------------------------------------------------
#include <BeBuild.h>
#include <SupportDefs.h>
// Project Includes ------------------------------------------------------------
// Local Includes --------------------------------------------------------------
// Local Defines ---------------------------------------------------------------
// Globals ---------------------------------------------------------------------
// BDataIO Class ---------------------------------------------------------------
class BDataIO {
public:
BDataIO();
virtual ~BDataIO();
virtual ssize_t Read(void *buffer, size_t size) = 0;
virtual ssize_t Write(const void *buffer, size_t size) =0;
// Private or reserved ----------------------
private:
virtual void _ReservedDataIO1();
virtual void _ReservedDataIO2();
virtual void _ReservedDataIO3();
virtual void _ReservedDataIO4();
#if !_PR3_COMPATIBLE_
virtual void _ReservedDataIO5();
virtual void _ReservedDataIO6();
virtual void _ReservedDataIO7();
virtual void _ReservedDataIO8();
virtual void _ReservedDataIO9();
virtual void _ReservedDataIO10();
virtual void _ReservedDataIO11();
virtual void _ReservedDataIO12();
#endif
BDataIO(const BDataIO &);
BDataIO &operator=(const BDataIO &);
int32 _reserved[2];
};
// BPositionIO Class -----------------------------------------------------------
class BPositionIO : public BDataIO {
public:
BPositionIO();
virtual ~BPositionIO();
virtual ssize_t Read(void *buffer, size_t size);
virtual ssize_t Write(const void *buffer, size_t size);
virtual ssize_t ReadAt(off_t pos, void *buffer, size_t size) = 0;
virtual ssize_t WriteAt(off_t pos, const void *buffer, size_t size) = 0;
virtual off_t Seek(off_t position, uint32 seek_mode) = 0;
virtual off_t Position() const = 0;
virtual status_t SetSize(off_t size);
// Private or reserved ----------------------
private:
virtual void _ReservedPositionIO1();
virtual void _ReservedPositionIO2();
virtual void _ReservedPositionIO3();
virtual void _ReservedPositionIO4();
#if !_PR3_COMPATIBLE_
virtual void _ReservedPositionIO5();
virtual void _ReservedPositionIO6();
virtual void _ReservedPositionIO7();
virtual void _ReservedPositionIO8();
virtual void _ReservedPositionIO9();
virtual void _ReservedPositionIO10();
virtual void _ReservedPositionIO11();
virtual void _ReservedPositionIO12();
#endif
int32 _reserved[2];
};
// BMallocIO Class -------------------------------------------------------------
class BMallocIO : public BPositionIO {
public:
BMallocIO();
virtual ~BMallocIO();
virtual ssize_t ReadAt(off_t pos, void *buffer, size_t size);
virtual ssize_t WriteAt(off_t pos, const void *buffer, size_t size);
virtual off_t Seek(off_t pos, uint32 seek_mode);
virtual off_t Position() const;
virtual status_t SetSize(off_t size);
void SetBlockSize(size_t blocksize);
const void *Buffer() const;
size_t BufferLength() const;
// Private or reserved ----------------------
private:
virtual void _ReservedMallocIO1();
virtual void _ReservedMallocIO2();
BMallocIO(const BMallocIO &);
BMallocIO &operator=(const BMallocIO &);
size_t fBlockSize;
size_t fMallocSize;
size_t fLength;
char *fData;
off_t fPosition;
int32 _reserved[1];
};
// BMemoryIO Class -------------------------------------------------------------
class BMemoryIO : public BPositionIO {
public:
BMemoryIO(void *p, size_t len);
BMemoryIO(const void *p, size_t len);
virtual ~BMemoryIO();
virtual ssize_t ReadAt(off_t pos, void *buffer, size_t size);
virtual ssize_t WriteAt(off_t pos, const void *buffer, size_t size);
virtual off_t Seek(off_t pos, uint32 seek_mode);
virtual off_t Position() const;
virtual status_t SetSize(off_t size);
// Private or reserved ----------------------
private:
virtual void _ReservedMemoryIO1();
virtual void _ReservedMemoryIO2();
BMemoryIO(const BMemoryIO &);
BMemoryIO &operator=(const BMemoryIO &);
bool fReadOnly;
char *fBuf;
size_t fLen;
size_t fPhys;
size_t fPos;
int32 _reserved[1];
};
//------------------------------------------------------------------------------
#endif // _DATA_IO_H
/*
* $Log $
*
* $Id $
*
*/