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/*
* Copyright (C) 2001 Sistina Software (UK) Limited.
*
* This file is released under the GPL.
*/
#ifndef _LVM_DEVICE_H
#define _LVM_DEVICE_H
#include "lvm-types.h"
#include "list.h"
/*
* All devices in LVM will be represented by one of these.
* pointer comparisons are valid.
*/
struct device {
char *name;
struct list_head aliases; /* struct str_list from lvm-types.h */
dev_t dev;
};
/*
* All io should use these routines, rather than opening the devices
* by hand. You do not have to call an open routine. ATM all io is
* immediately flushed.
*/
int dev_get_size(struct device *dev, uint64_t *size);
int64_t dev_read(struct device *dev,
uint64_t offset, int64_t len, void *buffer);
int64_t dev_write(struct device *dev,
uint64_t offset, int64_t len, void *buffer);
static inline int is_lvm_partition(const char *name) {
return 1;
}
#define LVM_DEFAULT_DIR_PREFIX "/dev/"
/* FIXME Allow config file override */
static inline char *lvm_dir_prefix(void) { return LVM_DEFAULT_DIR_PREFIX; }
#endif
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