96 lines
3.8 KiB
C++
96 lines
3.8 KiB
C++
/*
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** Command & Conquer Red Alert(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* $Header: /CounterStrike/BFIOFILE.H 1 3/03/97 10:24a Joe_bostic $ */
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/***********************************************************************************************
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*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
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***********************************************************************************************
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* *
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* Project Name : Westwood Library *
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* *
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* File Name : BFIOFILE.H *
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* *
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* Programmer : David R. Dettmer *
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* *
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* Start Date : November 10, 1995 *
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* *
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* Last Update : November 10, 1995 [DRD] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#ifndef BFIOFILE_H
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#define BFIOFILE_H
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#include "rawfile.h"
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/*
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** This derivation of the raw file class handles buffering the input/output in order to
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** achieve greater speed. The buffering is not active by default. It must be activated
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** by setting the appropriate buffer through the Cache() function.
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*/
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class BufferIOFileClass : public RawFileClass
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{
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public:
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BufferIOFileClass(char const *filename);
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BufferIOFileClass(void);
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virtual ~BufferIOFileClass(void);
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bool Cache( long size=0, void *ptr=NULL );
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void Free( void );
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bool Commit( void );
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virtual char const * Set_Name(char const *filename);
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virtual int Is_Available(int forced=false);
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virtual int Is_Open(void) const;
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virtual int Open(char const *filename, int rights=READ);
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virtual int Open(int rights=READ);
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virtual long Read(void *buffer, long size);
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virtual long Seek(long pos, int dir=SEEK_CUR);
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virtual long Size(void);
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virtual long Write(void const *buffer, long size);
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virtual void Close(void);
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enum {MINIMUM_BUFFER_SIZE=1024};
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private:
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unsigned IsAllocated:1;
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unsigned IsOpen:1;
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unsigned IsDiskOpen:1;
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unsigned IsCached:1;
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unsigned IsChanged:1;
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unsigned UseBuffer:1;
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int BufferRights;
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void *Buffer;
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long BufferSize;
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long BufferPos;
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long BufferFilePos;
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long BufferChangeBeg;
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long BufferChangeEnd;
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long FileSize;
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long FilePos;
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long TrueFileStart;
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};
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#endif
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