func (block *Block) Release() {
if block.dirty {
n, err := block.cache.f.WriteAt(block.Buf[:], block.id<<blockShift)
bug.Err(err)
bug.Assert(n == blockSize)
}
}
func (kv *Kv) Put(key, val Bytes) {
var block *Block
if kv.rootId == 0 {
block = kv.cache.newLeaf()
} else {
block = kv.cache.Get(kv.rootId)
}
head := getHead(block)
bug.Assert(head.leaf)
kv.key = key
kv.val = val
}
func (cache *Cache) Get(blknum int64) *Block {
var block Block
n, err := cache.f.ReadAt(block.Buf[:], blknum<<blockShift)
if err == io.EOF {
n = blockSize
err = nil
}
bug.Err(err)
bug.Assert(n == blockSize)
block.id = blknum
block.cache = cache
return &block
}