From 73ab1d420dedd965ebe6f814dcf016c8e10879f2 Mon Sep 17 00:00:00 2001
From: Ben Johnson <benbjohnson@yahoo.com>
Date: Fri, 24 Jan 2014 16:32:18 -0700
Subject: TODO

---
 bnode.go | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 bnode.go

(limited to 'bnode.go')

diff --git a/bnode.go b/bnode.go
new file mode 100644
index 0000000..d272e93
--- /dev/null
+++ b/bnode.go
@@ -0,0 +1,23 @@
+package bolt
+
+import (
+	"unsafe"
+)
+
+// bnode represents a node on a branch page.
+type bnode struct {
+	flags   uint16
+	keySize uint16
+	pgid    pgid
+	data    uintptr // Pointer to the beginning of the data.
+}
+
+// key returns a byte slice that of the key data.
+func (n *bnode) key() []byte {
+	return (*[MaxKeySize]byte)(unsafe.Pointer(&n.data))[:n.keySize]
+}
+
+// bnodeSize returns the number of bytes required to store a key as a branch node.
+func bnodeSize(key []byte) int {
+	return int(unsafe.Offsetof((*bnode)(nil)).data) + len(key)
+}
-- 
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