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package btrfsvol
import (
"fmt"
"lukeshu.com/btrfs-tools/pkg/util"
)
type (
PhysicalAddr int64
LogicalAddr int64
AddrDelta int64
)
func formatAddr(addr int64, f fmt.State, verb rune) {
switch verb {
case 'v', 's', 'q':
str := fmt.Sprintf("%#016x", addr)
fmt.Fprintf(f, util.FmtStateString(f, verb), str)
default:
fmt.Fprintf(f, util.FmtStateString(f, verb), addr)
}
}
func (a PhysicalAddr) Format(f fmt.State, verb rune) { formatAddr(int64(a), f, verb) }
func (a LogicalAddr) Format(f fmt.State, verb rune) { formatAddr(int64(a), f, verb) }
func (d AddrDelta) Format(f fmt.State, verb rune) { formatAddr(int64(d), f, verb) }
func (a PhysicalAddr) Sub(b PhysicalAddr) AddrDelta { return AddrDelta(a - b) }
func (a LogicalAddr) Sub(b LogicalAddr) AddrDelta { return AddrDelta(a - b) }
func (a PhysicalAddr) Add(b AddrDelta) PhysicalAddr { return a + PhysicalAddr(b) }
func (a LogicalAddr) Add(b AddrDelta) LogicalAddr { return a + LogicalAddr(b) }
type QualifiedPhysicalAddr struct {
Dev util.UUID
Addr PhysicalAddr
}
func (a QualifiedPhysicalAddr) Cmp(b QualifiedPhysicalAddr) int {
if d := a.Dev.Cmp(b.Dev); d != 0 {
return d
}
return int(a.Addr - b.Addr)
}
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