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