1 files changed, 30 insertions, 0 deletions
diff --git a/lnode.go b/lnode.go
new file mode 100644
index 0000000..9e457b6
--- /dev/null
+++ b/lnode.go
@@ -0,0 +1,30 @@
+package bolt
+
+import (
+	"unsafe"
+)
+
+type nodeid uint16
+
+// lnode represents a node on a leaf page.
+type lnode struct {
+	flags    uint16
+	keySize  uint16
+	dataSize uint32
+	data     uintptr // Pointer to the beginning of the data.
+}
+
+// key returns a byte slice that of the node key.
+func (n *lnode) key() []byte {
+	return (*[MaxKeySize]byte)(unsafe.Pointer(&n.data))[:n.keySize]
+}
+
+// data returns a byte slice that of the node data.
+func (n *lnode) data() []byte {
+	return (*[MaxKeySize]byte)(unsafe.Pointer(&n.data))[n.keySize : n.keySize+n.dataSize]
+}
+
+// lnodeSize returns the number of bytes required to store a key+data as a leaf node.
+func lnodeSize(key []byte, data []byte) int {
+	return int(unsafe.Offsetof((*lnode)(nil)).data) + len(key) + len(data)
+}