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/* Store I/O
Copyright (C) 1995 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This file is part of the GNU Hurd.
The GNU Hurd 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, or (at
your option) any later version.
The GNU Hurd 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef __STORE_H__
#define __STORE_H__
struct store
{
/* If this store was created using store_create, the file from which we got
our store. */
file_t source;
enum file_storage_class class;
off_t *runs;
unsigned num_runs;
char *name;
mach_port_t port;
void *misc;
struct store_meths *meths;
};
struct store_meths
{
error_t (*read)(struct store *store,
off_t addr, size_t amount, char **buf, size_t *len);
error_t (*write)(struct store *store,
off_t addr, char *buf, size_t len, size_t *amount);
};
error_t store_create (file_t source, struct store **store);
#endif /* __STORE_H__ */
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