84 lines
1.8 KiB
Nim
84 lines
1.8 KiB
Nim
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## Nim-Dagger
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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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import std/options
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import pkg/leopard
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import pkg/stew/results
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import ../backend
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type
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LeoEncoderBackend* = ref object of EncoderBackend
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encoder*: Option[LeoEncoder]
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LeoDecoderBackend* = ref object of DecoderBackend
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decoder*: Option[LeoDecoder]
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method encode*(
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self: LeoEncoderBackend,
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data,
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parity: var openArray[seq[byte]]): Result[void, cstring] =
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var encoder = if self.encoder.isNone:
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self.encoder = (? LeoEncoder.init(
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self.blockSize,
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self.buffers,
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self.parity)).some
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self.encoder.get()
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else:
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self.encoder.get()
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encoder.encode(data, parity)
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method decode*(
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self: LeoDecoderBackend,
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data,
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parity,
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recovered: var openArray[seq[byte]]): Result[void, cstring] =
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var decoder = if self.decoder.isNone:
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self.decoder = (? LeoDecoder.init(
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self.blockSize,
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self.buffers,
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self.parity)).some
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self.decoder.get()
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else:
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self.decoder.get()
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decoder.decode(data, parity, recovered)
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method release*(self: LeoEncoderBackend) =
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if self.encoder.isSome:
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self.encoder.get().free()
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method release*(self: LeoDecoderBackend) =
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if self.decoder.isSome:
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self.decoder.get().free()
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func new*(
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T: type LeoEncoderBackend,
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blockSize,
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buffers,
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parity: int): T =
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T(
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blockSize: blockSize,
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buffers: buffers,
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parity: parity)
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func new*(
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T: type LeoDecoderBackend,
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blockSize,
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buffers,
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parity: int): T =
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T(
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blockSize: blockSize,
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buffers: buffers,
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parity: parity)
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