Struct LogPage 

pub struct LogPage {
    pub records: LogRecords,
    pub first_sequence_number: Option<u64>,
    pub result_flags: (bool, bool, bool),
    pub gap: Option<LogGap>,
    pub violations: Vec<ReadRangeViolation>,
    pub next: LogCursor,
    pub done: bool,
    pub wrapped: bool,
}

One page of a paged log read.

Fields

records: LogRecords

The page’s records, oldest first.

first_sequence_number: Option<u64>

The first record’s sequence number; None for a page read by position, or an empty page.

result_flags: (bool, bool, bool)

FIRST_ITEM, LAST_ITEM and MORE_ITEMS as the device set them; all false for a page the reader made up for an empty log.

gap: Option<LogGap>

Set when the first record is past the one the read asked for.

violations: Vec<ReadRangeViolation>

Rules the device’s answer broke that the reader tolerates, such as a first sequence number of 0 after the device’s wrap.

next: LogCursor

Where to read next: the next page while done is false, else the checkpoint to resume from once the log has more records.

done: bool

The page reached the newest record (LAST_ITEM), or found none.

wrapped: bool

The page’s records reach the top of the sequence range, so next wrapped to 1. A device that numbers the record after the top 0 rather than 1 (against the standard) is then one number ahead of next; see read_log_page.

Trait Implementations

impl Clone for LogPage

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LogPage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.