types

type Blob struct {
	FileID  FileID
	Length  int64
	Content []byte
	Name    string
}

type Block struct {
	ID     BlockID
	Header *BlockHeader // metadata
	Data   []byte       // contents of this block
}

type BlockHeader struct {
	BlockID  BlockID `json:"block_id"`
	FileID   FileID  `json:"file_id"`
	Chunk    NodeID  `json:"chunk"`
	Checksum string  `json:"checksum"`
	Filename string  `json:"filenam"`
	Size     int64   `json:"size"`
}

type BlockID string

type File struct {
	ID           FileID
	Name         string
	Length       int64
	Replications int
	Createtime   time.Time
	Status       FileStatus
	Blocks       map[BlockID]*BlockHeader
}

type FileID string

type FileStatus int

type Node struct {
	ID   NodeID
	Addr string

	Blocks          []BlockID
	Connections     int
	Heath           NodeStatus
	LastHeartbeat   time.Time
	LastUtilization int64
}

type NodeID string

type NodeStatus int

type SyncBlock struct {
	BlockID BlockID
	Addr    string
	NodeID  NodeID
}

type UUID [16]byte