Struct PatternStatus 

pub struct PatternStatus { /* private fields */ }

What a sequencer track’s pattern player is doing, for the UI to draw.

Four small atomics rather than a channel, and for the same reason as VuLevels: the UI redraws on a timer and wants the state now rather than a history of it, and publishing must not make the audio thread allocate, block, or care whether anyone is listening.

The step and the queued slot are things the UI could work out for itself — both are functions of the transport position — but only by reimplementing the audio thread’s arithmetic and hoping the two never disagree. Reading what actually played is one store per callback and cannot drift.

Implementations

impl PatternStatus

pub fn new() -> Self

pub fn publish( &self, live_slot: u8, queued_slot: Option<u8>, step: u8, running: bool, )

Called once per callback from the audio thread.

pub fn live_slot(&self) -> u8

pub fn queued_slot(&self) -> Option<u8>

pub fn step(&self) -> u8

pub fn is_running(&self) -> bool

Trait Implementations

impl Debug for PatternStatus

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

Formats the value using the given formatter.

impl Default for PatternStatus

fn default() -> PatternStatus

Returns the “default value” for a type.