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lvm2/device_mapper/vdo/target.h
Joe Thornber ccc35e2647 device-mapper: Fork libdm internally.
The device-mapper directory now holds a copy of libdm source.  At
the moment this code is identical to libdm.  Over time code will
migrate out to appropriate places (see doc/refactoring.txt).

The libdm directory still exists, and contains the source for the
libdevmapper shared library, which we will continue to ship (though
not neccessarily update).

All code using libdm should now use the version in device-mapper.
2018-05-16 13:00:50 +01:00

69 lines
1.6 KiB
C

/*
* Copyright (C) 2018 Red Hat, Inc. All rights reserved.
*
* This file is part of the device-mapper userspace tools.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DEVICE_MAPPER_VDO_TARGET_H
#define DEVICE_MAPPER_VDO_TARGET_H
#include <stdbool.h>
#include <stdint.h>
//----------------------------------------------------------------
enum vdo_operating_mode {
VDO_MODE_RECOVERING,
VDO_MODE_READ_ONLY,
VDO_MODE_NORMAL
};
enum vdo_compression_state {
VDO_COMPRESSION_ONLINE,
VDO_COMPRESSION_OFFLINE
};
enum vdo_index_state {
VDO_INDEX_ERROR,
VDO_INDEX_CLOSED,
VDO_INDEX_OPENING,
VDO_INDEX_CLOSING,
VDO_INDEX_OFFLINE,
VDO_INDEX_ONLINE,
VDO_INDEX_UNKNOWN
};
struct vdo_status {
char *device;
enum vdo_operating_mode operating_mode;
bool recovering;
enum vdo_index_state index_state;
enum vdo_compression_state compression_state;
uint64_t used_blocks;
uint64_t total_blocks;
};
void vdo_status_destroy(struct vdo_status *s);
#define VDO_MAX_ERROR 256
struct vdo_status_parse_result {
char error[VDO_MAX_ERROR];
struct vdo_status *status;
};
// Parses the status line from the kernel target.
bool vdo_status_parse(const char *input, struct vdo_status_parse_result *result);
//----------------------------------------------------------------
#endif