vfs.h

/**************************************************************************************
 Copyright (c) 2002 The UbixOS Project
 All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions, the following disclaimer and the list of authors.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions, the following disclaimer and the list of authors
in the documentation and/or other materials provided with the distribution. Neither the name of the UbixOS Project nor the names of its
contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 $Id$

**************************************************************************************/

#ifndef _VFS_H
#define _VFS_H

#include <ubixos/types.h>

#define maxFd   32
#define fdAvail 1
#define fdOpen  2
#define fdRead  3
#define fdEof   4


#define fileRead    0x0001
#define fileWrite   0x0002
#define fileBinary  0x0004
#define fileAppend  0x0008

typedef struct fileDescriptorStruct {
  struct fileDescriptorStruct *prev;
  struct fileDescriptorStruct *next;
  struct mountPoints          *mp;
  uInt16         status;
  uInt16         mode;
  uInt32         offset;
  uInt32         size;
  uInt16         length;
  uInt32         start;
  uInt8          fileName[22];
  char           *buffer;
  uInt32         dirBlock;
  uInt32         perms;
  } fileDescriptor;

struct fileSystem {
  struct fileSystem *prev;
  struct fileSystem *next;
  int               (*vfsInitFS)(void *);
  int               (*vfsRead)(void *,char *,long,long);
  int               (*vfsWrite)(void *,char *,long,long);
  int               (*vfsOpenFile)(void *,void *);
  int               (*vfsUnlink)(char *,void *);
  int               (*vfsMakeDir)(char *,void *);
  int               (*vfsRemDir)(char *);
  int               (*vfsSync)(void);
  int               vfsType;
  };


/* VFS Functions */
int vfsInit();
int vfsRegisterFS(int,void *,void *,void *,void *,void *,void *,void *,void *);
struct fileSystem *vfsFindFS(int);



//File IO
fileDescriptor *fopen(const char *file,const char *flags);


#endif

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