Struct RingMidiBuffer 

pub struct RingMidiBuffer { /* private fields */ }

A fixed-capacity ring buffer of MidiEvents usable as both a MidiSource and a MidiSink.

Writing to a full buffer evicts the oldest event and increments the dropped count; reading pops from the front.

Implementations

impl RingMidiBuffer

pub fn new(tpq: u32, capacity: usize) -> Result<Self, LiveMidiError>

Creates a buffer at tpq resolution holding up to capacity events.

Fails with LiveMidiError::ZeroCapacity when capacity is zero.

pub fn capacity(&self) -> usize

Returns the buffer’s maximum capacity.

pub fn len(&self) -> usize

Returns the number of buffered events.

pub fn is_empty(&self) -> bool

Returns whether the buffer is empty.

pub fn dropped_events(&self) -> usize

Returns the running count of events dropped due to overflow.

pub fn clear(&mut self)

Removes all buffered events (the dropped count is preserved).

pub fn snapshot(&self) -> Vec<MidiEvent>

Returns a copy of the currently buffered events without consuming them.

Trait Implementations

impl Clone for RingMidiBuffer

fn clone(&self) -> RingMidiBuffer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RingMidiBuffer

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

Formats the value using the given formatter.

impl MidiSink for RingMidiBuffer

type Err = Infallible

Error type returned by write and flush.

fn tpq(&self) -> u32

Returns the sink resolution in ticks per quarter note.

fn write(&mut self, event: &MidiEvent) -> Result<(), Self::Err>

Writes one event to the sink.

fn flush(&mut self) -> Result<(), Self::Err>

Flushes any buffered state to the underlying destination.

impl MidiSource for RingMidiBuffer

type Err = Infallible

Error type returned by next.

fn tpq(&self) -> u32

Returns the source resolution in ticks per quarter note.

fn next(&mut self) -> Result<Option<MidiEvent>, Self::Err>

Returns the next event, or None once the stream is exhausted.