Struct EventSequencer 

pub struct EventSequencer { /* private fields */ }

Sole allocator of transaction event sequence numbers (starts at 1).

Implementations

impl EventSequencer

pub fn new() -> Self

Create a sequencer; first allocated sequence is 1.

pub fn peek_next(&self) -> u64

Next sequence that Self::allocate will return (D-036 peek-before-enqueue).

pub fn allocate(&self) -> u64

Allocate the next contiguous sequence number.

pub fn last_allocated(&self) -> u64

Last allocated sequence (0 if none).

Trait Implementations

impl Debug for EventSequencer

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

Formats the value using the given formatter.

impl Default for EventSequencer

fn default() -> Self

Returns the “default value” for a type.