iface

type IBufferManager interface {
	sync.Locker
	RLock()
	RUnlock()
	buf.IMemoryPool

	String() string
	NodeCount() int
	GetNextID() uint64
	GetNextTransientID() uint64

	RegisterMemory(vf common.IVFile, spillable bool, constructor buf.MemoryNodeConstructor) nif.INodeHandle
	RegisterSpillableNode(vf common.IVFile, nodeID uint64, constructor buf.MemoryNodeConstructor) nif.INodeHandle
	RegisterNode(vf common.IVFile, useCompress bool, nodeID uint64, constructor buf.MemoryNodeConstructor) nif.INodeHandle
	UnregisterNode(nif.INodeHandle)

	CreateNode(vf common.IVFile, useCompress bool, constructor buf.MemoryNodeConstructor) INode

	Pin(h nif.INodeHandle) nif.IBufferHandle
	Unpin(h nif.INodeHandle)
}

type INode interface {
	io.Closer
	GetManagedNode() MangaedNode
	GetBufferHandle() nif.IBufferHandle
}

type MangaedNode struct {
	Handle   nif.IBufferHandle
	DataNode buf.IMemoryNode
}