Method ZlibDecompressionStream

c++/src/Compression.cc:691–719

#endif

  ZlibDecompressionStream::ZlibDecompressionStream(std::unique_ptr<SeekableInputStream> inStream,
                                                   size_t bufferSize, MemoryPool& pool,
                                                   ReaderMetrics* metrics)
      : DecompressionStream(std::move(inStream), bufferSize, pool, metrics) {
    zstream_.next_in = nullptr;
    zstream_.avail_in = 0;
    zstream_.zalloc = nullptr;
    zstream_.zfree = nullptr;
    zstream_.opaque = nullptr;
    zstream_.next_out = reinterpret_cast<Bytef*>(outputDataBuffer.data());
    zstream_.avail_out = static_cast<uInt>(outputDataBuffer.capacity());
    int64_t result = inflateInit2(&zstream_, -15);
    switch (result) {
      case Z_OK:
        break;
      case Z_MEM_ERROR:
        throw CompressionError(
            "Memory error from ZlibDecompressionStream::ZlibDecompressionStream inflateInit2");
      case Z_VERSION_ERROR:
        throw CompressionError(
            "Version error from ZlibDecompressionStream::ZlibDecompressionStream inflateInit2");
      case Z_STREAM_ERROR:
        throw CompressionError(
            "Stream error from ZlibDecompressionStream::ZlibDecompressionStream inflateInit2");
      default:
        throw CompressionError(
            "Unknown error from  ZlibDecompressionStream::ZlibDecompressionStream inflateInit2");
    }
  }

  DIAGNOSTIC_POP