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// Copyright (C) 2023 Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later
package btrfsitem
import (
"git.lukeshu.com/btrfs-progs-ng/lib/binstruct"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsprim"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsvol"
"git.lukeshu.com/btrfs-progs-ng/lib/fmtutil"
)
type QGroupStatusFlags uint64
const (
QGroupStatusFlagOn QGroupStatusFlags = 1 << iota
QGroupStatusFlagRescan
QGroupStatusFlagInconsistent
)
var qgroupStatusFlagNames = []string{
"ON",
"RESCAN",
"INCONSISTENT",
}
func (f QGroupStatusFlags) Has(req QGroupStatusFlags) bool { return f&req == req }
func (f QGroupStatusFlags) String() string {
return fmtutil.BitfieldString(f, qgroupStatusFlagNames, fmtutil.HexNone)
}
const QGroupStatusVersion uint64 = 1
// A QGroupStatus holds the qgroup state of a subvolume (I think that
// implies that the QGroupStatus goes in the subvolume tree that it is
// describing?).
//
// Key:
//
// key.objectid = 0
// key.offset = 0
type QGroupStatus struct { // trivial QGROUP_STATUS=240
Version uint64 `bin:"off=0, siz=8"`
Generation btrfsprim.Generation `bin:"off=8, siz=8"`
Flags QGroupStatusFlags `bin:"off=16, siz=8"`
RescanProgress btrfsvol.LogicalAddr `bin:"off=24, siz=8"`
binstruct.End `bin:"off=32"`
}
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