First CVS upload.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@80

include/dos_system.h

@@ -0,0 +1,105 @@
+/*
+ *  Copyright (C) 2002  The DOSBox Team
+ *
+ *  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 2 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 Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef DOSSYSTEM_H_
+#define DOSSYSTEM_H_
+
+#include <dosbox.h>
+
+#define DOS_NAMELENGTH 12
+#define DOS_DIRDEPTH 16
+#define DOS_PATHLENGTH (DOS_DIRDEPTH+1)*(DOS_NAMELENGTH+2)
+#define DOS_TEMPSIZE 1024
+
+enum {
+	DOS_ATTR_READ_ONLY=	0x01,
+	DOS_ATTR_HIDDEN=	0x02,
+	DOS_ATTR_SYSTEM=	0x04,
+	DOS_ATTR_VOLUME=	0x08,
+	DOS_ATTR_DIRECTORY=	0x10,
+	DOS_ATTR_ARCHIVE=	0x20
+};
+
+#pragma pack (1)
+struct DTA_FindBlock {
+	Bit8u sdrive;								/* The Drive the search is taking place */
+	Bit16u sattr;								/* The attributes that need to be found */
+	Bit8u fill[18];
+	Bit8u attr;
+	Bit16u time;
+	Bit16u date;
+	Bit32u size;
+	char name[DOS_NAMELENGTH];
+};
+#pragma pack ()
+
+class DOS_File {
+public:
+	virtual bool Read(Bit8u * data,Bit16u * size)=0;
+	virtual bool Write(Bit8u * data,Bit16u * size)=0;
+	virtual bool Seek(Bit32u * pos,Bit32u type)=0;
+	virtual bool Close()=0;
+	virtual Bit16u GetInformation(void)=0;
+	Bit8u type;Bit32u flags;
+/* Some Device Specific Stuff */
+};
+
+class DOS_Device : public DOS_File {
+public:
+/* Some Device Specific Stuff */
+	char * name;
+	Bit8u fhandle;	
+};
+
+
+
+class DOS_Drive {
+public:
+	DOS_Drive();
+	virtual bool FileOpen(DOS_File * * file,char * name,Bit32u flags)=0;
+	virtual bool FileCreate(DOS_File * * file,char * name,Bit16u attributes)=0;
+	virtual bool FileUnlink(char * name)=0;
+	virtual bool RemoveDir(char * dir)=0;
+	virtual bool MakeDir(char * dir)=0;
+	virtual bool TestDir(char * dir)=0;
+	virtual bool FindFirst(char * search,DTA_FindBlock * dta)=0;
+	virtual bool FindNext(DTA_FindBlock * dta)=0;
+	virtual bool GetFileAttr(char * name,Bit16u * attr)=0;
+	virtual bool Rename(char * oldname,char * newname)=0;
+	virtual bool FreeSpace(Bit16u * bytes,Bit16u * sectors,Bit16u * clusters,Bit16u * free)=0;
+	char * GetInfo(void);
+	char curdir[DOS_PATHLENGTH];
+	char info[256];
+};
+
+enum { OPEN_READ=0,OPEN_WRITE=1,OPEN_READWRITE=2 };
+enum { DOS_SEEK_SET=0,DOS_SEEK_CUR=1,DOS_SEEK_END=2};
+
+
+/*
+ A multiplex handler should read the registers to check what function is being called 
+ If the handler returns false dos will stop checking other handlers 
+*/
+
+typedef bool (MultiplexHandler)(void);
+void DOS_AddMultiplexHandler(MultiplexHandler * handler);
+
+void DOS_AddDevice(DOS_Device * adddev);
+void VFILE_Register(char * name,Bit8u * data,Bit32u size);
+#endif
+