Function transmission_sys::tr_metaInfoBuilderSetPieceSize

pub unsafe extern "C" fn tr_metaInfoBuilderSetPieceSize(
    builder: *mut tr_metainfo_builder, 
    bytes: u32
) -> bool

Call this before tr_makeMetaInfo() to override the builder.pieceSize and builder.pieceCount values that were set by tr_metainfoBuilderCreate()

@return false if the piece size isn't valid; eg, isn't a power of two.