ByteBlockReader.measure_key_header_length: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend as ByteBlockReader
Lines 1016-1031 of mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&start_line=1016&end_line=1031

import Base
import mylsm-lsm-store@0.6.0.1/src/ByteWal.bend as ByteWal
import bend-kit-bytes@0.3.2.0/bytes.bend as Bytes

# Handles measure key header length.
def measure_key_header_length(
  +index_offset: Nat,
  +used: Nat,
  key: Bytes.Bytes,
  pair: Bytes.Bytes & Maybe<&2, U32>,
  file: File
) -> IO(Result<&1, &1, U32 & String, ByteWal.ValueMetadata>):
  match pair:
    case (_, None{}):
      do IO<Result<&1, &1, U32 & String, ByteWal.ValueMetadata>>:
        _closed : Unit <- File.close(file)
        return Fail{corruption("invalid byte SST block length")}
    case (_, Some{+payload_length}):
      measure_key_header_valid(index_offset, used, key, payload_length,
        file, measure_key_bounds(index_offset, used, payload_length))

Uses (18):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=File
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=File.close
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=IO
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=IO.bind
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=IO.pure
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit
  https://jend.leeeet.dev/definition.txt?path=bend-kit-bytes@0.3.3.0/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/ByteWal.bend&name=ValueMetadata
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&name=corruption
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&name=measure_key_bounds
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&name=measure_key_header_valid