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 DeviceID uint64 type QualifiedPhysicalAddr struct { Dev DeviceID Addr PhysicalAddr } func (a QualifiedPhysicalAddr) Cmp(b QualifiedPhysicalAddr) int { if d := int(a.Dev - b.Dev); d != 0 { return d } return int(a.Addr - b.Addr) }