Function read_record_stream 

pub fn read_record_stream<R: Read>(
    lace: &LaceHandle,
    reader: R,
    max_bytes: u64,
) -> Result<RecordStream<R>>

Read the records of a record stream from reader, one at a time.

Each record is validated as it arrives and received like an ILTP response: into lace’s record staging, or into memory when its store has none. A record whose canonical length exceeds what remains of max_bytes fails at its start, before any of its bytes are held. An invalid, oversized or truncated record, or a failed read, ends the stream with one error and discards its partial bytes. The reader’s chunk buffer is reserved from the IO budget until the stream drops.