Struct DevServerHost 

pub struct DevServerHost { /* private fields */ }

Development server host for browser-based UI testing

This implementation stores parameter values locally and optionally forwards updates to an AtomicParameterBridge for lock-free reads on the audio thread. Meter data is provided externally via the audio server’s meter channel (not generated synthetically).

Thread Safety

Parameter state is protected by RwLock (in InMemoryParameterHost). The AtomicParameterBridge uses lock-free atomics for audio thread.

Implementations

impl DevServerHost

pub fn new(parameters: Vec<ParameterInfo>) -> Self

Create a new dev server host with parameter metadata.

Arguments

• parameters - Parameter metadata loaded from the plugin FFI

Used by tests and the non-audio build path. When audio is enabled (default), production code uses with_param_bridge() instead.

pub fn with_param_bridge( parameters: Vec<ParameterInfo>, bridge: Arc<AtomicParameterBridge>, ) -> Self

Create a new dev server host with an AtomicParameterBridge.

When a bridge is provided, set_parameter() will write updates to both the inner store and the bridge (for audio-thread reads).

pub fn replace_parameters( &self, new_params: Vec<ParameterInfo>, ) -> Result<(), String>

Replace all parameters with new metadata from a hot-reload.

Preserves values for parameters with matching IDs. New parameters get their default values. This is used by the hot-reload pipeline to update parameter definitions without restarting the server.

Errors

Returns an error if parameter replacement fails (e.g., unrecoverable lock poisoning).

pub fn set_latest_meter_frame(&self, update: &MeterUpdateNotification)

Store the latest metering snapshot for polling-based consumers.

pub fn set_latest_oscilloscope_frame(&self, frame: OscilloscopeFrame)

Store the latest oscilloscope frame for polling-based consumers.

pub fn set_audio_status(&self, status: AudioRuntimeStatus)

Update the shared audio runtime status.

Trait Implementations

impl ParameterHost for DevServerHost

fn get_parameter(&self, id: &str) -> Option<ParameterInfo>

Get information about a single parameter.

fn set_parameter(&self, id: &str, value: f32) -> Result<(), BridgeError>

Set a parameter value.

fn get_all_parameters(&self) -> Vec<ParameterInfo>

Get all parameters with their current values and metadata.

fn get_meter_frame(&self) -> Option<MeterFrame>

Get the latest meter frame for UI visualization.

fn get_oscilloscope_frame(&self) -> Option<OscilloscopeFrame>

Get the latest oscilloscope frame for UI visualization.

fn request_resize(&self, _width: u32, _height: u32) -> bool

Request resize of the editor window.

fn get_audio_status(&self) -> Option<AudioRuntimeStatus>

Get the current audio runtime status for browser/dev hosts.