From 8db7bed06505569c1b41a338b5131cfd5c9d1f28 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Sun, 26 Jun 2022 20:25:27 -0600
Subject: tidy up which package things are in

---
 pkg/btrfs/btrfsvol/addr.go | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 pkg/btrfs/btrfsvol/addr.go

(limited to 'pkg/btrfs/btrfsvol/addr.go')

diff --git a/pkg/btrfs/btrfsvol/addr.go b/pkg/btrfs/btrfsvol/addr.go
new file mode 100644
index 0000000..e8b578a
--- /dev/null
+++ b/pkg/btrfs/btrfsvol/addr.go
@@ -0,0 +1,45 @@
+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)
+}
-- 
cgit v1.2.3-2-g168b