4.17 sdds::WriterOptions

• name:
  sdds::WriterOptions
• description:
  Configure one writer’s compression, long-double encoding, advisory lock, last-page update strategy, buffer size, compression tuning, and minimum output version. Path writers default to exclusive advisory locking.
• synopsis:
  struct sdds::WriterOptions {  
    Compression compression = Compression::Auto;  
    LongDoubleEncoding longDoubleEncoding = LongDoubleEncoding::Extended80;  
    LockMode lockMode = LockMode::Exclusive;  
    UpdateStrategy updateStrategy = UpdateStrategy::Automatic;  
    std::size_t bufferBytes = 256 * 1024;  
    int gzipLevel = -1;  
    std::uint32_t lzmaPreset = 6;  
    LzmaCheck lzmaCheck = LzmaCheck::Crc64;  
    std::int32_t minimumVersion = 1;  
  };

• arguments:
  This structure is passed by value to writer factory methods. Compression settings apply only to their corresponding wrapper.
• return value:
  Not applicable.
• exceptions:
  Invalid levels, presets, versions, or unsupported strategies are reported by an sdds::Error-derived exception when the writer is opened or updated.
• see also:
  Sections 4.18 and 4.20.