nim-codex/codex/manifest/types.nim

43 lines
1.4 KiB
Nim

## Nim-Codex
## Copyright (c) 2022 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
import std/tables
import pkg/libp2p
import pkg/questionable
const
DagPBCodec* = multiCodec("dag-pb")
type
ManifestCoderType*[codec: static MultiCodec] = object
DagPBCoder* = ManifestCoderType[multiCodec("dag-pb")]
const
# TODO: move somewhere better?
ManifestContainers* = {
$DagPBCodec: DagPBCoder()
}.toTable
type
Manifest* = ref object of RootObj
rootHash*: ?Cid # root (tree) hash of the contained data set
blockSize*: int # size of each contained block (might not be needed if blocks are len-prefixed)
blocks*: seq[Cid] # block Cid
version*: CidVersion # Cid version
hcodec*: MultiCodec # Multihash codec
codec*: MultiCodec # Data set codec
case protected*: bool # Protected datasets have erasure coded info
of true:
K*: int # Number of blocks to encode
M*: int # Number of resulting parity blocks
originalCid*: Cid # The original Cid of the dataset being erasure coded
originalLen*: int # The length of the original manifest
else:
discard