Initial commit of Command & Conquer Red Alert source code.

CODE/BFIOFILE.H

@@ -0,0 +1,95 @@
+/*
+**	Command & Conquer Red Alert(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program is free software: you can redistribute it and/or modify
+**	it under the terms of the GNU General Public License as published by
+**	the Free Software Foundation, either version 3 of the License, or
+**	(at your option) any later version.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Header: /CounterStrike/BFIOFILE.H 1     3/03/97 10:24a Joe_bostic $ */
+/***********************************************************************************************
+ ***              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               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : Westwood Library                                             *
+ *                                                                                             *
+ *                    File Name : BFIOFILE.H                                                   *
+ *                                                                                             *
+ *                   Programmer : David R. Dettmer                                             *
+ *                                                                                             *
+ *                   Start Date : November 10, 1995                                            *
+ *                                                                                             *
+ *                  Last Update : November 10, 1995  [DRD]                                     *
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+#ifndef BFIOFILE_H
+#define BFIOFILE_H
+
+#include	"rawfile.h"
+
+/*
+**	This derivation of the raw file class handles buffering the input/output in order to
+**	achieve greater speed. The buffering is not active by default. It must be activated
+**	by setting the appropriate buffer through the Cache() function.
+*/
+class BufferIOFileClass : public RawFileClass
+{
+	public:
+
+		BufferIOFileClass(char const *filename);
+		BufferIOFileClass(void);
+		virtual ~BufferIOFileClass(void);
+
+		bool Cache( long size=0, void *ptr=NULL );
+		void Free( void );
+		bool Commit( void );
+		virtual char const * Set_Name(char const *filename);
+		virtual int Is_Available(int forced=false);
+		virtual int Is_Open(void) const;
+		virtual int Open(char const *filename, int rights=READ);
+		virtual int Open(int rights=READ);
+		virtual long Read(void *buffer, long size);
+		virtual long Seek(long pos, int dir=SEEK_CUR);
+		virtual long Size(void);
+		virtual long Write(void const *buffer, long size);
+		virtual void Close(void);
+
+		enum {MINIMUM_BUFFER_SIZE=1024};
+
+	private:
+
+		unsigned IsAllocated:1;
+		unsigned IsOpen:1;
+		unsigned IsDiskOpen:1;
+		unsigned IsCached:1;
+		unsigned IsChanged:1;
+		unsigned UseBuffer:1;
+
+		int BufferRights;
+
+		void *Buffer;
+
+		long BufferSize;
+		long BufferPos;
+		long BufferFilePos;
+		long BufferChangeBeg;
+		long BufferChangeEnd;
+		long FileSize;
+		long FilePos;
+		long TrueFileStart;
+};
+
+#endif