Method decode_chunks

src/erasure-code/clay/ErasureCodeClay.cc:212–239

#endif

int ErasureCodeClay::decode_chunks(const set<int> &want_to_read,
				   const map<int, bufferlist> &chunks,
				   map<int, bufferlist> *decoded)
{
  set<int> erasures;
  map<int, bufferlist> coded_chunks;

  for (int i = 0; i < k + m; i++) {
    if (chunks.count(i) == 0) {
      erasures.insert(i < k ? i : i+nu);
    }
    ceph_assert(decoded->count(i) > 0);
    coded_chunks[i < k ? i : i+nu] = (*decoded)[i];
  }
  int chunk_size = coded_chunks[0].length();

  for (int i = k; i < k+nu; i++) {
    bufferptr buf(buffer::create_aligned(chunk_size, SIMD_ALIGN));
    buf.zero();
    coded_chunks[i].push_back(std::move(buf));
  }

  int res = decode_layered(erasures, &coded_chunks);
  for (int i = k; i < k+nu; i++) {
    coded_chunks[i].clear();
  }
  return res;
}

int ErasureCodeClay::parse(ErasureCodeProfile &profile,
			   ostream *ss)