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/*
* Copyright (C) 2011 Hubert Kario <kario@wsisiz.edu.pl>
*
* 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 _lvmls_h_
#define _lvmls_h_
#include <stdint.h>
#include "config.h"
void init_le_to_pe(struct program_params *pp);
void le_to_pe_exit(struct program_params *pp);
struct pv_info {
char *pv_name;
uint64_t start_seg;
};
struct le_info {
uint64_t le;
uint64_t pe;
const char *dev;
const char *lv_name;
};
// information about continuous extent allocations
struct pv_allocations {
char *pv_name;
char *vg_name;
char *vg_format; // not used
char *vg_attr; // not used
char *lv_name;
char *pv_type; // type of allocation ("free", "linear", "striped")
uint64_t pv_start; // starting extent in PV
uint64_t pv_length;
uint64_t lv_start; // starting extent of this segment in LV
};
// TODO move to program_params
extern struct pv_allocations *pv_segments;
extern size_t pv_segments_num;
void pv_info_free(struct pv_info *pv);
// convert logical extent from logical volume specified by lv_name,
// vg_name and logical extent number (le_num) to physical extent
// on specific device
struct pv_info *LE_to_PE(const char *vg_name, const char *lv_name, uint64_t le_num);
uint64_t get_pe_size(const char *vg_name);
/**
* Returns amount of free extents on pv in vg
*/
uint64_t get_free_extent_number(const char *vg_name, const char *pv_name);
struct le_info get_first_LE_info(const char *vg_name, const char *lv_name,
const char *pv_name);
/**
* Return type of allocation for provided PE
*/
struct le_info get_PE_allocation(const char *vg_name, const char *pv_name,
uint64_t pe_num);
/**
* Returns number of extents used by lv on specified pv in vg
*/
uint64_t get_used_space_on_pv(const char *vg_name, const char *lv_name,
const char *pv_name);
#endif /* ifndef _lvmls_h */