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// Copyright (C) 2022 Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later
package rebuildmappings
import (
"context"
"math"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsvol"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfsprogs/btrfsinspect"
)
type AllSums struct {
Logical []btrfsinspect.SumRun[btrfsvol.LogicalAddr]
Physical map[btrfsvol.DeviceID]btrfsinspect.SumRun[btrfsvol.PhysicalAddr]
}
func (as AllSums) SumForPAddr(paddr btrfsvol.QualifiedPhysicalAddr) (btrfsinspect.ShortSum, bool) {
run, ok := as.Physical[paddr.Dev]
if !ok {
return "", false
}
return run.SumForAddr(paddr.Addr)
}
func (as AllSums) RunForLAddr(laddr btrfsvol.LogicalAddr) (btrfsinspect.SumRun[btrfsvol.LogicalAddr], btrfsvol.LogicalAddr, bool) {
for _, run := range as.Logical {
if run.Addr > laddr {
return btrfsinspect.SumRun[btrfsvol.LogicalAddr]{}, run.Addr, false
}
if run.Addr.Add(run.Size()) <= laddr {
continue
}
return run, 0, true
}
return btrfsinspect.SumRun[btrfsvol.LogicalAddr]{}, math.MaxInt64, false
}
func (as AllSums) SumForLAddr(laddr btrfsvol.LogicalAddr) (btrfsinspect.ShortSum, bool) {
run, _, ok := as.RunForLAddr(laddr)
if !ok {
return "", false
}
return run.SumForAddr(laddr)
}
func (as AllSums) WalkLogical(ctx context.Context, fn func(btrfsvol.LogicalAddr, btrfsinspect.ShortSum) error) error {
for _, run := range as.Logical {
if err := run.Walk(ctx, fn); err != nil {
return err
}
}
return nil
}
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