/*
* Copyright (c) 2007 Jakub Jermar
* 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 and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 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.
*/
/** @addtogroup fs
* @{
*/
#ifndef VFS_VFS_H_
#define VFS_VFS_H_
#include <ipc/ipc.h>
#define VFS_FIRST FIRST_USER_METHOD
typedef enum {
VFS_REGISTER = VFS_FIRST,
VFS_MOUNT,
VFS_UNMOUNT,
VFS_OPEN,
VFS_CREATE,
VFS_CLOSE,
VFS_READ,
VFS_WRITE,
VFS_SEEK,
VFS_LAST, /* keep this the last member of the enum */
} vfs_request_t;
/**
* An instance of this structure is associated with a particular FS operation.
* It tells VFS if the FS supports the operation or maybe if a default one
* should be used.
*/
typedef enum {
VFS_OP_NULL = 0,
VFS_OP_DEFAULT,
VFS_OP_DEFINED
} vfs_op_t;
#define FS_NAME_MAXLEN 20
/**
* A structure like this is passed to VFS by each individual FS upon its
* registration. It assosiates a human-readable identifier with each
* registered FS. More importantly, through this structure, the FS announces
* what operations it supports.
*/
typedef struct {
/** Unique identifier of the fs. */
char fs_name[FS_NAME_MAXLEN];
/** Operations. */
vfs_op_t ops[VFS_LAST - VFS_FIRST];
} vfs_info_t;
#endif
/**
* @}
*/