81 lines
2.9 KiB
Nim
81 lines
2.9 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2023 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.push raises: [].}
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import ../spec/datatypes/deneb
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from std/sequtils import mapIt
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from std/strutils import join
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const
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MaxBlobs = SLOTS_PER_EPOCH * MAX_BLOBS_PER_BLOCK
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type
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BlobQuarantine* = object
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blobs*: OrderedTable[(Eth2Digest, BlobIndex), ref BlobSidecar]
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BlobFetchRecord* = object
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block_root*: Eth2Digest
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indices*: seq[BlobIndex]
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func shortLog*(x: seq[BlobIndex]): string =
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"<" & x.mapIt($it).join(", ") & ">"
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func shortLog*(x: seq[BlobFetchRecord]): string =
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"[" & x.mapIt(shortLog(it.block_root) & shortLog(it.indices)).join(", ") & "]"
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func put*(quarantine: var BlobQuarantine, blobSidecar: ref BlobSidecar) =
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if quarantine.blobs.lenu64 > MaxBlobs:
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# FIFO if full. For example, sync manager and request manager can race to
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# put blobs in at the same time, so one gets blob insert -> block resolve
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# -> blob insert sequence, which leaves garbage blobs.
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var oldest_blob_key: (Eth2Digest, BlobIndex)
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for k in quarantine.blobs.keys:
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oldest_blob_key = k
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break
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quarantine.blobs.del oldest_blob_key
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discard quarantine.blobs.hasKeyOrPut((blobSidecar.block_root,
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blobSidecar.index), blobSidecar)
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func blobIndices*(quarantine: BlobQuarantine, digest: Eth2Digest):
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seq[BlobIndex] =
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var r: seq[BlobIndex] = @[]
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for i in 0..<MAX_BLOBS_PER_BLOCK:
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if quarantine.blobs.hasKey((digest, i)):
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r.add(i)
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r
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func hasBlob*(quarantine: BlobQuarantine, blobSidecar: BlobSidecar): bool =
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quarantine.blobs.hasKey((blobSidecar.block_root, blobSidecar.index))
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func popBlobs*(quarantine: var BlobQuarantine, digest: Eth2Digest):
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seq[ref BlobSidecar] =
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var r: seq[ref BlobSidecar] = @[]
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for i in 0..<MAX_BLOBS_PER_BLOCK:
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var b: ref BlobSidecar
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if quarantine.blobs.pop((digest, i), b):
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r.add(b)
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r
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func hasBlobs*(quarantine: BlobQuarantine, blck: deneb.SignedBeaconBlock):
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bool =
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let idxs = quarantine.blobIndices(blck.root)
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if len(blck.message.body.blob_kzg_commitments) != len(idxs):
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return false
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for i in 0..<len(idxs):
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if idxs[i] != uint64(i):
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return false
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true
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func blobFetchRecord*(quarantine: BlobQuarantine, blck: deneb.SignedBeaconBlock):
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BlobFetchRecord =
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var indices: seq[BlobIndex]
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for i in 0..<len(blck.message.body.blob_kzg_commitments):
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let idx = BlobIndex(i)
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if not quarantine.blobs.hasKey((blck.root, idx)):
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indices.add(idx)
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BlobFetchRecord(block_root: blck.root, indices: indices)
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