mirror of
https://github.com/codex-storage/nim-codex.git
synced 2025-02-02 08:05:15 +00:00
reworking slotbuilder
This commit is contained in:
Dmitriy Ryajov
parent
98f60411a6
commit
9c9730d23a
@ -1,109 +0,0 @@
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import std/math
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import std/sequtils
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import pkg/libp2p
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import pkg/chronos
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import pkg/chronicles
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import pkg/questionable/results
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import ../merkletree
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import ../stores
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import ../manifest
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import ../utils
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import ../utils/digest
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const
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# TODO: Unified with the CellSize specified in branch "data-sampler"
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# Number of bytes in a cell. A cell is the smallest unit of data used
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# in the proving circuit.
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CellSize* = 2048
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type
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SlotBuilder* = object of RootObj
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blockStore: BlockStore
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manifest: Manifest
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slotBlocks: int
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proc new*(
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T: type SlotBuilder,
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blockStore: BlockStore,
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manifest: Manifest
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): ?!SlotBuilder =
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if not manifest.protected:
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return failure("Can only create SlotBuilder using protected manifests.")
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if (manifest.blocksCount mod manifest.ecK) != 0:
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return failure("Number of blocks must be divisable by number of slots.")
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if (manifest.blockSize.int mod CellSize) != 0:
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return failure("Block size must be divisable by cell size.")
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let slotBlocks = manifest.blocksCount div manifest.numberOfSlots
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success SlotBuilder(
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blockStore: blockStore,
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manifest: manifest,
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slotBlocks: slotBlocks)
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proc cellsPerBlock(self: SlotBuilder): int =
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self.manifest.blockSize.int div CellSize
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proc selectSlotBlocks*(
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self: SlotBuilder,
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slotIndex: int): Future[?!seq[Poseidon2Hash]] {.async.} =
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let
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treeCid = self.manifest.treeCid
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blockCount = self.manifest.blocksCount
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numberOfSlots = self.manifest.numberOfSlots
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strategy = SteppedIndexingStrategy.new(0, blockCount - 1, numberOfSlots)
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logScope:
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treeCid = treeCid
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blockCount = blockCount
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numberOfSlots = numberOfSlots
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index = blockIndex
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var blocks = newSeq[Poseidon2Hash]()
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for blockIndex in strategy.getIndicies(slotIndex):
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without blk =? await self.blockStore.getBlock(treeCid, blockIndex), err:
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error "Failed to get block CID for tree at index"
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return failure(err)
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without digestTree =? Poseidon2Tree.digest(blk.data, CellSize) and
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blockDigest =? digestTree.root, err:
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error "Failed to create digest for block"
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return failure(err)
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blocks.add(blockDigest)
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# TODO: Remove this sleep. It's here to prevent us from locking up the thread.
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await sleepAsync(10.millis)
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success blocks
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proc numPaddingCells*(self: SlotBuilder, slotBlocks: int): int =
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let
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numberOfCells = slotBlocks * self.cellsPerBlock
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nextPowerOfTwo = nextPowerOfTwo(numberOfCells)
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return nextPowerOfTwo - numberOfCells
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proc buildSlotTree*(self: SlotBuilder, slotBlocks: seq[Cid], paddingCells: int): ?!Poseidon2Tree =
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without emptyCid =? emptyCid(self.manifest.version, self.manifest.hcodec, self.manifest.codec), err:
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error "Unable to initialize empty cid"
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return failure(err)
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let paddingBlocks = divUp(paddingCells, self.cellsPerBlock)
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let padding = newSeqWith(paddingBlocks, emptyCid)
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Poseidon2Tree.init(slotBlocks & padding)
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proc createSlots*(self: SlotBuilder, slotIndex: int): Future[?!Manifest] {.async.} =
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without slotBlocks =? await self.selectSlotBlocks(slotIndex), err:
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error "Failed to select slot blocks"
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return failure(err)
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let paddingCells = self.numPaddingCells(slotBlocks.len)
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trace "Creating slot tree", slotIndex, nSlotBlocks = slotBlocks.len, paddingCells
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return self.buildSlotTree(slotBlocks, paddingCells)
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267
codex/slots/slotbuilder.nim
Normal file
267
codex/slots/slotbuilder.nim
Normal file
@ -0,0 +1,267 @@
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## Nim-Codex
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## Copyright (c) 2023 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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{.push raises: [].}
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import std/math
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import std/sequtils
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import std/sugar
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import pkg/libp2p
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import pkg/chronos
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import pkg/chronicles
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import pkg/questionable/results
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import pkg/poseidon2
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import pkg/poseidon2/io
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import ../indexingstrategy
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import ../merkletree
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import ../stores
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import ../manifest
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import ../utils
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import ../utils/digest
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const
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# TODO: Unified with the CellSize specified in branch "data-sampler"
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# Number of bytes in a cell. A cell is the smallest unit of data used
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# in the proving circuit.
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CellSize* = 2048
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type
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SlotBuilder* = object of RootObj
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store: BlockStore
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manifest: Manifest
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strategy: IndexingStrategy
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cellSize: int
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blockPadBytes: seq[byte]
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slotsPadLeafs: seq[Poseidon2Hash]
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rootsPadLeafs: seq[Poseidon2Hash]
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func numBlockPadBytes*(self: SlotBuilder): Natural =
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## Number of padding bytes required for a pow2
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## merkle tree for each block.
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##
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self.blockPadBytes.len
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func numSlotsPadLeafs*(self: SlotBuilder): Natural =
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## Number of padding field elements required for a pow2
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## merkle tree for each slot.
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##
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self.slotsPadLeafs.len
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func numRootsPadLeafs*(self: SlotBuilder): Natural =
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## Number of padding field elements required for a pow2
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## merkle tree for the slot roots.
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##
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self.rootsPadLeafs.len
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func numSlotBlocks*(self: SlotBuilder): Natural =
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## Number of blocks per slot.
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##
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self.manifest.blocksCount div self.manifest.numSlots
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func numBlockRoots*(self: SlotBuilder): Natural =
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## Number of cells per block.
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##
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self.manifest.blockSize.int div self.cellSize
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func toCellCid(cell: Poseidon2Hash): ?!Cid =
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let
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cellMhash = ? MultiHash.init(Pos2Bn128MrklCodec, cell.toBytes).mapFailure
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cellCid = ? Cid.init(CIDv1, CodexSlotCell, cellMhash).mapFailure
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success cellCid
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func toSlotCid(root: Poseidon2Hash): ?!Cid =
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let
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mhash = ? MultiHash.init($multiCodec("identity"), root.toBytes).mapFailure
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treeCid = ? Cid.init(CIDv1, SlotRootCodec, mhash).mapFailure
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success treeCid
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func toProvingCid(root: Poseidon2Hash): ?!Cid =
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let
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mhash = ? MultiHash.init($multiCodec("identity"), root.toBytes).mapFailure
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treeCid = ? Cid.init(CIDv1, SlotProvingRootCodec, mhash).mapFailure
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success treeCid
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func mapToSlotCids(slotRoots: seq[Poseidon2Hash]): ?!seq[Cid] =
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success slotRoots.mapIt( ? it.toSlotCid )
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func toEncodableProof*(
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proof: Poseidon2Proof): ?!CodexProof =
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let
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encodableProof = CodexProof(
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mcodec: multiCodec("identity"), # copy bytes as is
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index: proof.index,
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nleaves: proof.nleaves,
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path: proof.path.mapIt( @(it.toBytes) ))
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success encodableProof
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func toVerifiableProof*(
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proof: CodexProof): ?!Poseidon2Proof =
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let
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verifiableProof = Poseidon2Proof(
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index: proof.index,
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nleaves: proof.nleaves,
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path: proof.path.mapIt(
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? Poseidon2Hash.fromBytes(it.toArray32).toResult
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))
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success verifiableProof
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proc getCellHashes*(
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self: SlotBuilder,
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slotIndex: int): Future[?!seq[Poseidon2Hash]] {.async.} =
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let
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treeCid = self.manifest.treeCid
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blockCount = self.manifest.blocksCount
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numberOfSlots = self.manifest.numSlots
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logScope:
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treeCid = treeCid
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blockCount = blockCount
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numberOfSlots = numberOfSlots
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index = blockIndex
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slotIndex = slotIndex
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let
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hashes: seq[Poseidon2Hash] = collect(newSeq):
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for blockIndex in self.strategy.getIndicies(slotIndex):
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trace "Getting block CID for tree at index"
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without blk =? (await self.store.getBlock(treeCid, blockIndex)), err:
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error "Failed to get block CID for tree at index"
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return failure(err)
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without digest =? Poseidon2Tree.digest(blk.data & self.blockPadBytes, self.cellSize), err:
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error "Failed to create digest for block"
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return failure(err)
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# TODO: Remove this sleep. It's here to prevent us from locking up the thread.
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# await sleepAsync(10.millis)
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digest
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success hashes
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proc buildSlotTree*(
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self: SlotBuilder,
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slotIndex: int): Future[?!Poseidon2Tree] {.async.} =
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without cellHashes =? (await self.getCellHashes(slotIndex)), err:
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error "Failed to select slot blocks", err = err.msg
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return failure(err)
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Poseidon2Tree.init(cellHashes & self.slotsPadLeafs)
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proc buildSlot*(
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self: SlotBuilder,
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slotIndex: int): Future[?!Poseidon2Hash] {.async.} =
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## Build a slot tree and store it in the block store.
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##
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without tree =? (await self.buildSlotTree(slotIndex)) and
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treeCid =? tree.root.?toSlotCid, err:
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error "Failed to build slot tree", err = err.msg
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return failure(err)
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trace "Storing slot tree", treeCid, slotIndex, leaves = tree.leavesCount
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for i, leaf in tree.leaves:
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without cellCid =? leaf.toCellCid, err:
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error "Failed to get CID for slot cell", err = err.msg
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return failure(err)
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without proof =? tree.getProof(i) and
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encodableProof =? proof.toEncodableProof, err:
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error "Failed to get proof for slot tree", err = err.msg
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return failure(err)
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if err =? (await self.store.putCidAndProof(
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treeCid, i, cellCid, encodableProof)).errorOption:
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error "Failed to store slot tree", err = err.msg
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return failure(err)
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tree.root()
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proc buildSlots(self: SlotBuilder): Future[?!Manifest] {.async.} =
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let
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slotRoots: seq[Poseidon2Hash] = collect(newSeq):
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for i in 0..<self.manifest.numSlots:
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without root =? (await self.buildSlot(i)), err:
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error "Failed to build slot", err = err.msg, index = i
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return failure(err)
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root
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without provingRootCid =? Poseidon2Tree.init(slotRoots & self.rootsPadLeafs).?root.?toProvingCid, err:
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error "Failed to build proving tree", err = err.msg
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return failure(err)
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without rootCids =? slotRoots.mapToSlotCids(), err:
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error "Failed to map slot roots to CIDs", err = err.msg
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return failure(err)
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Manifest.new(self.manifest, provingRootCid, rootCids)
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func nextPowerOfTwoPad*(a: int): int =
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## Returns the next power of two of `a` and `b` and the difference between
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## the original value and the next power of two.
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##
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nextPowerOfTwo(a) - a
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proc new*(
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T: type SlotBuilder,
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store: BlockStore,
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manifest: Manifest,
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strategy: IndexingStrategy = nil,
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cellSize = CellSize): ?!SlotBuilder =
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if not manifest.protected:
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return failure("Can only create SlotBuilder using protected manifests.")
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if (manifest.blocksCount mod manifest.numSlots) != 0:
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return failure("Number of blocks must be divisable by number of slots.")
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if (manifest.blockSize.int mod cellSize) != 0:
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return failure("Block size must be divisable by cell size.")
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let
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strategy = if strategy == nil:
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SteppedIndexingStrategy.new(
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0, manifest.blocksCount - 1, manifest.numSlots)
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else:
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strategy
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# all trees have to be padded to power of two
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numBlockCells = manifest.blockSize.int div cellSize # number of cells per block
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blockPadBytes
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= newSeq[byte](numBlockCells.nextPowerOfTwoPad * cellSize) # power of two padding for blocks
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slotsPadLeafs
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= newSeqWith((manifest.blocksCount div manifest.numSlots).nextPowerOfTwoPad, Poseidon2Zero) # power of two padding for block roots
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rootsPadLeafs
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= newSeqWith(manifest.numSlots.nextPowerOfTwoPad, Poseidon2Zero)
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success SlotBuilder(
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store: store,
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manifest: manifest,
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strategy: strategy,
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cellSize: cellSize,
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blockPadBytes: blockPadBytes,
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slotsPadLeafs: slotsPadLeafs,
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rootsPadLeafs: rootsPadLeafs)
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@ -1,5 +1,8 @@
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import std/sequtils
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import std/math
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import std/importutils
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import std/sugar
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import pkg/chronos
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import pkg/asynctest
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import pkg/questionable/results
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@ -9,29 +12,53 @@ import pkg/codex/stores
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import pkg/codex/chunker
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import pkg/codex/merkletree
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import pkg/codex/utils
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import pkg/codex/utils/digest
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import pkg/datastore
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import pkg/poseidon2
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import pkg/poseidon2/io
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import constantine/math/io/io_fields
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import ../helpers
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import ../examples
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import ../merkletree/helpers
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import pkg/codex/manifest/indexingstrategy
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import pkg/codex/slotbuilder/slotbuilder
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import pkg/codex/indexingstrategy {.all.}
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import pkg/codex/slots/slotbuilder {.all.}
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asyncchecksuite "Slot builder":
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suite "Slot builder":
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let
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blockSize = 64 * 1024
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numberOfCellsPerBlock = blockSize div CellSize
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numberOfSlotBlocks = 6
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numberOfSlots = 5
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numberOfDatasetBlocks = numberOfSlotBlocks * numberOfSlots
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datasetSize = numberOfDatasetBlocks * blockSize
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chunker = RandomChunker.new(Rng.instance(), size = datasetSize, chunkSize = blockSize)
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blockSize = 1024
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cellSize = 64
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ecK = 3
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ecM = 2
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numSlots = ecK + ecM
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numDatasetBlocks = 100
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numBlockCells = blockSize div cellSize
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numTotalBlocks = calcEcBlocksCount(numDatasetBlocks, ecK, ecM) # total number of blocks in the dataset after
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# EC (should will match number of slots)
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originalDatasetSize = numDatasetBlocks * blockSize # size of the dataset before EC
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totalDatasetSize = numTotalBlocks * blockSize # size of the dataset after EC
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numTotalSlotBlocks = nextPowerOfTwo(numTotalBlocks div numSlots)
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blockPadBytes =
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newSeq[byte](numBlockCells.nextPowerOfTwoPad * cellSize) # power of two padding for blocks
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slotsPadLeafs =
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newSeqWith((numTotalBlocks div numSlots).nextPowerOfTwoPad, Poseidon2Zero) # power of two padding for block roots
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rootsPadLeafs =
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newSeqWith(numSlots.nextPowerOfTwoPad, Poseidon2Zero)
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var
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datasetBlocks: seq[bt.Block]
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localStore = CacheStore.new()
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localStore: BlockStore
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manifest: Manifest
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protectedManifest: Manifest
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expectedEmptyCid: Cid
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slotBuilder: SlotBuilder
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chunker: Chunker
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proc createBlocks(): Future[void] {.async.} =
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while true:
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@ -45,132 +72,225 @@ asyncchecksuite "Slot builder":
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proc createProtectedManifest(): Future[void] {.async.} =
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let
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cids = datasetBlocks.mapIt(it.cid)
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tree = Poseidon2Tree.init(cids).tryGet()
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treeCid = tree.rootCid().tryGet()
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datasetTree = CodexTree.init(cids[0..<numDatasetBlocks]).tryGet()
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datasetTreeCid = datasetTree.rootCid().tryGet()
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protectedTree = CodexTree.init(cids).tryGet()
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protectedTreeCid = protectedTree.rootCid().tryGet()
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for index, cid in cids[0..<numDatasetBlocks]:
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let proof = datasetTree.getProof(index).tryget()
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(await localStore.putCidAndProof(datasetTreeCid, index, cid, proof)).tryGet
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for index, cid in cids:
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let proof = tree.getProof(index).tryget()
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discard await localStore.putBlockCidAndProof(treeCid, index, cid, proof)
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let proof = protectedTree.getProof(index).tryget()
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(await localStore.putCidAndProof(protectedTreeCid, index, cid, proof)).tryGet
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manifest = Manifest.new(
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treeCid = datasetTreeCid,
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blockSize = blockSize.NBytes,
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datasetSize = originalDatasetSize.NBytes)
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|
||||
protectedManifest = Manifest.new(
|
||||
manifest = Manifest.new(
|
||||
treeCid = treeCid,
|
||||
blockSize = blockSize.NBytes,
|
||||
datasetSize = datasetSize.NBytes),
|
||||
treeCid = treeCid,
|
||||
datasetSize = datasetSize.NBytes,
|
||||
ecK = numberOfSlots,
|
||||
ecM = 0
|
||||
)
|
||||
manifest = manifest,
|
||||
treeCid = protectedTreeCid,
|
||||
datasetSize = totalDatasetSize.NBytes,
|
||||
ecK = ecK,
|
||||
ecM = ecM)
|
||||
|
||||
let manifestBlock = bt.Block.new(protectedManifest.encode().tryGet(), codec = DagPBCodec).tryGet()
|
||||
discard await localStore.putBlock(manifestBlock)
|
||||
expectedEmptyCid = emptyCid(protectedManifest.version, protectedManifest.hcodec, protectedManifest.codec).tryget()
|
||||
let
|
||||
manifestBlock = bt.Block.new(
|
||||
manifest.encode().tryGet(),
|
||||
codec = ManifestCodec).tryGet()
|
||||
|
||||
protectedManifestBlock = bt.Block.new(
|
||||
protectedManifest.encode().tryGet(),
|
||||
codec = ManifestCodec).tryGet()
|
||||
|
||||
(await localStore.putBlock(manifestBlock)).tryGet()
|
||||
(await localStore.putBlock(protectedManifestBlock)).tryGet()
|
||||
|
||||
expectedEmptyCid = emptyCid(
|
||||
protectedManifest.version,
|
||||
protectedManifest.hcodec,
|
||||
protectedManifest.codec).tryGet()
|
||||
|
||||
privateAccess(SlotBuilder) # enable access to private fields
|
||||
|
||||
setup:
|
||||
let
|
||||
repoDs = SQLiteDatastore.new(Memory).tryGet()
|
||||
metaDs = SQLiteDatastore.new(Memory).tryGet()
|
||||
localStore = RepoStore.new(repoDs, metaDs)
|
||||
|
||||
chunker = RandomChunker.new(Rng.instance(), size = totalDatasetSize, chunkSize = blockSize)
|
||||
await createBlocks()
|
||||
await createProtectedManifest()
|
||||
slotBuilder = SlotBuilder.new(localStore, protectedManifest).tryGet()
|
||||
|
||||
teardown:
|
||||
await localStore.close()
|
||||
|
||||
# Need to reset all objects because otherwise they get
|
||||
# captured by the test runner closures, not good!
|
||||
reset(datasetBlocks)
|
||||
reset(localStore)
|
||||
reset(manifest)
|
||||
reset(protectedManifest)
|
||||
reset(expectedEmptyCid)
|
||||
reset(slotBuilder)
|
||||
reset(chunker)
|
||||
|
||||
test "Can only create slotBuilder with protected manifest":
|
||||
let unprotectedManifest = Manifest.new(
|
||||
let
|
||||
unprotectedManifest = Manifest.new(
|
||||
treeCid = Cid.example,
|
||||
blockSize = blockSize.NBytes,
|
||||
datasetSize = datasetSize.NBytes)
|
||||
datasetSize = originalDatasetSize.NBytes)
|
||||
|
||||
check:
|
||||
SlotBuilder.new(localStore, unprotectedManifest).isErr
|
||||
SlotBuilder.new(localStore, unprotectedManifest, cellSize = cellSize)
|
||||
.error.msg == "Can only create SlotBuilder using protected manifests."
|
||||
|
||||
test "Number of blocks must be devisable by number of slots":
|
||||
let mismatchManifest = Manifest.new(
|
||||
let
|
||||
mismatchManifest = Manifest.new(
|
||||
manifest = Manifest.new(
|
||||
treeCid = Cid.example,
|
||||
blockSize = blockSize.NBytes,
|
||||
datasetSize = datasetSize.NBytes),
|
||||
datasetSize = originalDatasetSize.NBytes),
|
||||
treeCid = Cid.example,
|
||||
datasetSize = datasetSize.NBytes,
|
||||
ecK = numberOfSlots - 1,
|
||||
ecM = 0
|
||||
)
|
||||
datasetSize = totalDatasetSize.NBytes,
|
||||
ecK = ecK - 1,
|
||||
ecM = ecM)
|
||||
|
||||
check:
|
||||
SlotBuilder.new(localStore, mismatchManifest).isErr
|
||||
SlotBuilder.new(localStore, mismatchManifest, cellSize = cellSize)
|
||||
.error.msg == "Number of blocks must be divisable by number of slots."
|
||||
|
||||
test "Block size must be divisable by cell size":
|
||||
let mismatchManifest = Manifest.new(
|
||||
let
|
||||
mismatchManifest = Manifest.new(
|
||||
manifest = Manifest.new(
|
||||
treeCid = Cid.example,
|
||||
blockSize = (blockSize - 1).NBytes,
|
||||
datasetSize = (datasetSize - numberOfDatasetBlocks).NBytes),
|
||||
blockSize = (blockSize + 1).NBytes,
|
||||
datasetSize = (originalDatasetSize - 1).NBytes),
|
||||
treeCid = Cid.example,
|
||||
datasetSize = (datasetSize - numberOfDatasetBlocks).NBytes,
|
||||
ecK = numberOfSlots,
|
||||
ecM = 0
|
||||
)
|
||||
datasetSize = (totalDatasetSize - 1).NBytes,
|
||||
ecK = ecK,
|
||||
ecM = ecM)
|
||||
|
||||
check:
|
||||
SlotBuilder.new(localStore, mismatchManifest).isErr
|
||||
SlotBuilder.new(localStore, mismatchManifest, cellSize = cellSize)
|
||||
.error.msg == "Block size must be divisable by cell size."
|
||||
|
||||
for nSlotBlocks in [1, 12, 123, 1234, 12345]:
|
||||
test "Can calculate the number of padding cells (" & $nSlotBlocks & ")":
|
||||
test "Should build correct slot builder":
|
||||
slotBuilder = SlotBuilder.new(
|
||||
localStore,
|
||||
protectedManifest,
|
||||
cellSize = cellSize).tryGet()
|
||||
|
||||
check:
|
||||
slotBuilder.numBlockPadBytes == blockPadBytes.len
|
||||
slotBuilder.numSlotsPadLeafs == slotsPadLeafs.len
|
||||
slotBuilder.numRootsPadLeafs == rootsPadLeafs.len
|
||||
|
||||
test "Should build slot hashes for all slots":
|
||||
let
|
||||
nPadCells = slotBuilder.calculateNumberOfPaddingCells(nSlotBlocks)
|
||||
totalSlotBytes = nSlotBlocks * blockSize
|
||||
totalSlotCells = totalSlotBytes div CellSize
|
||||
expectedPadCells = nextPowerOfTwo(totalSlotCells) - totalSlotCells
|
||||
check:
|
||||
expectedPadCells == nPadCells
|
||||
steppedStrategy = SteppedIndexingStrategy.new(0, numTotalBlocks - 1, numSlots)
|
||||
slotBuilder = SlotBuilder.new(
|
||||
localStore,
|
||||
protectedManifest,
|
||||
cellSize = cellSize).tryGet()
|
||||
|
||||
for i in 0 ..< numberOfSlots:
|
||||
test "Can select slot block CIDs (index: " & $i & ")":
|
||||
for i in 0 ..< numSlots:
|
||||
let
|
||||
steppedStrategy = SteppedIndexingStrategy.new(0, numberOfDatasetBlocks - 1, numberOfSlots)
|
||||
expectedDatasetBlockIndicies = steppedStrategy.getIndicies(i)
|
||||
expectedBlockCids = expectedDatasetBlockIndicies.mapIt(datasetBlocks[it].cid)
|
||||
expectedBlock = steppedStrategy
|
||||
.getIndicies(i)
|
||||
.mapIt( datasetBlocks[it] )
|
||||
|
||||
slotBlockCids = (await slotBuilder.selectSlotBlocks(i)).tryGet()
|
||||
expectedHashes: seq[Poseidon2Hash] = collect(newSeq):
|
||||
for blk in expectedBlock:
|
||||
SpongeMerkle.digest(blk.data & blockPadBytes, cellSize)
|
||||
|
||||
cellHashes = (await slotBuilder.getCellHashes(i)).tryGet()
|
||||
|
||||
check:
|
||||
expectedBlockCids == slotBlockCids
|
||||
expectedHashes == cellHashes
|
||||
|
||||
test "Can create slot tree (index: " & $i & ")":
|
||||
test "Should build slot trees for all slots":
|
||||
let
|
||||
expectedSlotBlockCids = (await slotBuilder.selectSlotBlocks(i)).tryGet()
|
||||
expectedNumPadBlocks = divUp(slotBuilder.calculateNumberOfPaddingCells(expectedSlotBlockCids.len), numberOfCellsPerBlock)
|
||||
steppedStrategy = SteppedIndexingStrategy.new(0, numTotalBlocks - 1, numSlots)
|
||||
slotBuilder = SlotBuilder.new(
|
||||
localStore,
|
||||
protectedManifest,
|
||||
cellSize = cellSize).tryGet()
|
||||
|
||||
slotTree = (await slotBuilder.createSlotTree(i)).tryGet()
|
||||
|
||||
check:
|
||||
# Tree size
|
||||
slotTree.leavesCount == expectedSlotBlockCids.len + expectedNumPadBlocks
|
||||
|
||||
for i in 0 ..< numberOfSlotBlocks:
|
||||
check:
|
||||
# Each slot block
|
||||
slotTree.getLeafCid(i).tryget() == expectedSlotBlockCids[i]
|
||||
|
||||
for i in 0 ..< expectedNumPadBlocks:
|
||||
check:
|
||||
# Each pad block
|
||||
slotTree.getLeafCid(numberOfSlotBlocks + i).tryget() == expectedEmptyCid
|
||||
|
||||
test "Can create slot tree":
|
||||
for i in 0 ..< numSlots:
|
||||
let
|
||||
slotBlockCids = datasetBlocks[0 ..< numberOfSlotBlocks].mapIt(it.cid)
|
||||
numPadCells = numberOfCellsPerBlock div 2 # We expect 1 pad block.
|
||||
expectedBlock = steppedStrategy
|
||||
.getIndicies(i)
|
||||
.mapIt( datasetBlocks[it] )
|
||||
|
||||
slotTree = slotBuilder.buildSlotTree(slotBlockCids, numPadCells).tryGet()
|
||||
expectedHashes: seq[Poseidon2Hash] = collect(newSeq):
|
||||
for blk in expectedBlock:
|
||||
SpongeMerkle.digest(blk.data & blockPadBytes, cellSize)
|
||||
expectedRoot = Merkle.digest(expectedHashes & slotsPadLeafs)
|
||||
|
||||
slotTree = (await slotBuilder.buildSlotTree(i)).tryGet()
|
||||
|
||||
check:
|
||||
# Tree size
|
||||
slotTree.leavesCount == slotBlockCids.len + 1
|
||||
expectedRoot == slotTree.root().tryGet()
|
||||
|
||||
for i in 0 ..< numberOfSlotBlocks:
|
||||
check:
|
||||
# Each slot block
|
||||
slotTree.getLeafCid(i).tryget() == slotBlockCids[i]
|
||||
test "Should persist trees for all slots":
|
||||
let
|
||||
slotBuilder = SlotBuilder.new(
|
||||
localStore,
|
||||
protectedManifest,
|
||||
cellSize = cellSize).tryGet()
|
||||
|
||||
for i in 0 ..< numSlots:
|
||||
let
|
||||
slotTree = (await slotBuilder.buildSlotTree(i)).tryGet()
|
||||
slotRoot = (await slotBuilder.buildSlot(i)).tryGet()
|
||||
slotCid = slotRoot.toSlotCid().tryGet()
|
||||
|
||||
for cellIndex in 0..<numTotalSlotBlocks:
|
||||
let
|
||||
(cellCid, proof) = (await localStore.getCidAndProof(slotCid, cellIndex)).tryGet()
|
||||
verifiableProof = proof.toVerifiableProof().tryGet()
|
||||
posProof = slotTree.getProof(cellIndex).tryGet
|
||||
|
||||
check:
|
||||
# 1 pad block
|
||||
slotTree.getLeafCid(numberOfSlotBlocks).tryget() == expectedEmptyCid
|
||||
verifiableProof.index == posProof.index
|
||||
verifiableProof.nleaves == posProof.nleaves
|
||||
verifiableProof.path == posProof.path
|
||||
|
||||
test "Should build correct verification root":
|
||||
let
|
||||
steppedStrategy = SteppedIndexingStrategy.new(0, numTotalBlocks - 1, numSlots)
|
||||
slotBuilder = SlotBuilder.new(
|
||||
localStore,
|
||||
protectedManifest,
|
||||
cellSize = cellSize).tryGet()
|
||||
|
||||
slotsHashes = collect(newSeq):
|
||||
for i in 0 ..< numSlots:
|
||||
let
|
||||
expectedBlocks = steppedStrategy
|
||||
.getIndicies(i)
|
||||
.mapIt( datasetBlocks[it] )
|
||||
|
||||
slotHashes: seq[Poseidon2Hash] = collect(newSeq):
|
||||
for blk in expectedBlocks:
|
||||
SpongeMerkle.digest(blk.data & blockPadBytes, cellSize)
|
||||
|
||||
Merkle.digest(slotHashes & slotsPadLeafs)
|
||||
|
||||
expectedRoot = Merkle.digest(slotsHashes & rootsPadLeafs)
|
||||
manifest = (await slotBuilder.buildSlots()).tryGet()
|
||||
mhash = manifest.verificationRoot.mhash.tryGet()
|
||||
mhashBytes = mhash.digestBytes
|
||||
rootHash = Poseidon2Hash.fromBytes(mhashBytes.toArray32).toResult.tryGet()
|
||||
|
||||
check:
|
||||
expectedRoot == rootHash
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user