48 lines
814 B
Nim
48 lines
814 B
Nim
import std/sequtils
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import pkg/chronos
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import pkg/codex/chunker
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import pkg/codex/rng
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export chunker
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type
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RandomChunker* = Chunker
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proc new*(
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T: type RandomChunker,
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rng: Rng,
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chunkSize = DefaultChunkSize,
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size: int,
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pad = false
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): RandomChunker =
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## Create a chunker that produces random data
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##
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var consumed = 0
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proc reader(data: ChunkBuffer, len: int): Future[int]
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{.async, gcsafe, raises: [Defect].} =
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var alpha = toSeq(byte('A')..byte('z'))
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if consumed >= size:
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return 0
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var read = 0
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while read < len:
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rng.shuffle(alpha)
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for a in alpha:
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if read >= len:
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break
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data[read] = a
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read.inc
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consumed += read
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return read
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Chunker.new(
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reader = reader,
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pad = pad,
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chunkSize = chunkSize)
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