package models

import "encoding/binary"

const (
	BNODE_NODE = 1
	BNODE_LEAF = 2
)

func (node BNode) btype() uint16 {
	return binary.LittleEndian.Uint16(node[0:2])
}


func (node BNode) nkeys() uint16 {
	return binary.LittleEndian.Uint16(node[2:4])
}


func (node BNode) setHeader(btype uint16, nkeys uint16) {
	binary.LittleEndian.PutUint16(node[0:2], btype)
	binary.LittleEndian.PutUint16(node[2:4], nkeys)
}

func (node BNode) getPrt(ids uint16) uint64{
	assert(ids < node.nkeys())
	pos := HEADER + 8*ids
	return binary.LittleEndian.Uint64(node[pos:])
}

func (node BNode) setPtr(idx uint16, val uint64) {
}