encodingParams method

WalrusEncodingParams encodingParams(int nShards, int blobLen)

Get encoding parameters for a given shard count and blob size.

Implementation

WalrusEncodingParams encodingParams(int nShards, int blobLen) {
  final outP = calloc<Uint32>(1);
  final outS = calloc<Uint32>(1);
  final outSS = calloc<Uint32>(1);
  final outPriSize = calloc<Uint64>(1);
  final outSecSize = calloc<Uint64>(1);

  try {
    final ret = _encodingParams(
      nShards,
      blobLen,
      outP,
      outS,
      outSS,
      outPriSize,
      outSecSize,
    );

    if (ret != 0) {
      throw WalrusFfiException(
        'walrus_encoding_params failed with code $ret',
      );
    }

    return WalrusEncodingParams(
      primarySymbols: outP.value,
      secondarySymbols: outS.value,
      symbolSize: outSS.value,
      primarySliverSize: outPriSize.value,
      secondarySliverSize: outSecSize.value,
    );
  } finally {
    calloc.free(outP);
    calloc.free(outS);
    calloc.free(outSS);
    calloc.free(outPriSize);
    calloc.free(outSecSize);
  }
}