ipc

type CreateBlockArgs struct {
	//handle common.BlockHandle
	Handles []common.BlockHandle
}

type CreateBlockResponse struct {
	ResponseCode common.Code
}

type CreateFileArgs struct {
	Length uint64
}

type CreateFileResponse struct {
	Key     common.HotKey
	ErrCode common.Code
}

type DeleteFileArgs struct {
	Key common.HotKey
}

type DeleteFileResponse struct {
	ErrCode common.Code
}

type ForwardDataArgs struct {
	Handle common.BlockHandle
	//Data []byte
	Target []common.NodeAddress
}

type ForwardDataResponse struct {
	ErrCode common.Code
}

type GetBlockInfoArgs struct {
	Handle common.BlockHandle
}

type GetBlockInfoResponse struct {
	// locations
	Locations []common.NodeAddress
	Primary   common.NodeAddress
}

type GetMetadataArgs struct {
	FileKey common.HotKey
}

type GetMetadataResponse struct {
	// blocks
	BlockHandles []common.BlockHandle
	// length
	Length int64
}

type HeartBeatArgs struct {
	Address common.NodeAddress
	DNType  common.NodeType
}

type HeartBeatResponse struct {
	Garbage []common.BlockHandle
}

type ListKeysArgs struct {
	Limit int // how many keys
}

type ListKeysResponse struct {
	Keys []common.HotKey
}

type NodeStatusArgs struct{}

type NodeStatusResponse struct {
	Nodes map[common.NodeAddress]*common.Node
}

type ReadBlockArgs struct {
	Handle common.BlockHandle
	Offset common.Offset
	Length int
}

type ReadBlockResponse struct {
	Data    []byte
	Length  int
	ErrCode common.Code
}

type WriteBlockArgs struct {
	Handle      common.BlockHandle
	Data        []byte
	Offset      common.Offset
	Secondaries []common.NodeAddress
}

type WriteBlockResponse struct {
	ErrCode common.Code
}