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/*
geom_dal.h -- parted device abstraction layer
Copyright (C) 2001-2002, 2007, 2009-2011 Free Software Foundation, 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/>.
*/
#ifndef GEOM_DAL_H
#define GEOM_DAL_H
#include <parted/parted.h>
#if DYNAMIC_LOADING || !DISCOVER_ONLY
#include <sys/stat.h>
typedef unsigned long blk_t;
struct dal_ops;
struct _dal {
struct dal_ops *ops;
const void *dev;
size_t block_size;
int flags;
void *data;
blk_t len;
};
typedef struct _dal dal_t;
struct dal_ops {
blk_t (*len)(dal_t *);
int (*read)(dal_t *, void *, blk_t, blk_t);
int (*write)(dal_t *, void *, blk_t, blk_t);
int (*sync)(dal_t *);
int (*flags)(dal_t *);
int (*equals)(dal_t *, dal_t *);
int (*stat)(dal_t *, struct stat *);
dev_t (*dev)(dal_t *);
};
extern dal_t *geom_dal_create(PedGeometry *geom, size_t block_size, int flags);
extern int geom_dal_reopen(dal_t *dal, int flags);
extern void geom_dal_free(dal_t *dal);
#endif
#endif
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