117 lines
5.0 KiB
C++
117 lines
5.0 KiB
C++
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//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/* $Header: /CounterStrike/CDFILE.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 : CDFILE.H *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : October 18, 1994 *
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* *
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* Last Update : October 18, 1994 [JLB] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#ifndef CDFILE_H
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#define CDFILE_H
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#include <dos.h>
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#include "bfiofile.h"
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/*
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** This class is derived from the BufferIOFileClass. This class adds the functionality of searching
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** across multiple directories or drives. It is designed for the typical case of a CD-ROM game
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** were some data exists in the current directory (hard drive) and the rest exists on the CD-ROM.
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** Searching for the file occurs by first examining the current directory. If the file does not
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** exist there, then all the paths available are examined in turn until the file can be found.
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** For opening files to write, only the current directory is examined. The directory search order
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** is controlled by the path list as submitted to Set_Search_Drives(). The format of the path
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** string is the same as the DOS path string.
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*/
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class CDFileClass : public BufferIOFileClass
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{
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public:
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CDFileClass(char const *filename);
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CDFileClass(void);
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virtual ~CDFileClass(void) {};
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virtual char const * Set_Name(char const *filename);
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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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void Searching(int on) {IsDisabled = !on;};
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static bool Is_There_Search_Drives(void) {return(First != NULL);};
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static int Set_Search_Drives(char * pathlist);
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static void Add_Search_Drive(char *path);
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static void Clear_Search_Drives(void);
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static void Refresh_Search_Drives(void);
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static void Set_CD_Drive(int drive);
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static int Get_CD_Drive(void) {return(CurrentCDDrive);};
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static int Get_Last_CD_Drive(void) {return(LastCDDrive);};
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// RawPath will overflow if we keep setting the path. ST - 1/23/2019 11:12AM
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static void Reset_Raw_Path(void) { RawPath[0] = 0; }
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// Need to access the paths. ST - 3/15/2019 2:14PM
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static const char *Get_Search_Path(int index);
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private:
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/*
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** Is multi-drive searching disabled for this file object?
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*/
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unsigned IsDisabled:1;
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/*
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** This is the control record for each of the drives specified in the search
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** path. There can be many such search paths available.
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*/
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typedef struct {
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void * Next; // Pointer to next search record.
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char const * Path; // Pointer to path string.
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} SearchDriveType;
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/*
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** This points to the first path record.
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*/
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static SearchDriveType * First;
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/*
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** This is a copy of the unparsed search path list
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*/
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static char RawPath[512];
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/*
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** The drive letter of the current cd drive
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*/
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static int CurrentCDDrive;
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/*
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** The drive letter of the last used CD drive
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*/
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static int LastCDDrive;
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};
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#endif
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