Struct ScatterProcessor 

pub struct ScatterProcessor { /* private fields */ }

Scatter processor: marks each frame to be distributed to a single downstream consumer in round-robin order.

The target consumer — and the reroute-past-a-full-queue / drop-only-on-the- last-node decisions — are owned by the plugin runtime delivery path, which holds the persistent cursor (C++ NDPluginScatter::nextClient_) and is the only layer that can see per-consumer queue state. The processor therefore only flags the frame as a scatter frame, matching C++ NDPluginScatter, which keeps no per-frame index of its own (the cursor lives entirely in nextClient_).

Implementations

impl ScatterProcessor

pub fn new() -> Self

Trait Implementations

impl Default for ScatterProcessor

fn default() -> Self

Returns the “default value” for a type.

impl NDPluginProcess for ScatterProcessor

fn process_array( &mut self, array: &NDArray, _pool: &NDArrayPool, ) -> ProcessResult

Process one array. Return output arrays and param updates.

fn plugin_type(&self) -> &str

Plugin type name for PLUGIN_TYPE param.

fn register_params(&mut self, base: &mut PortDriverBase) -> AsynResult<()>

Register plugin-specific params on the base. Called once during construction.

fn on_param_change( &mut self, reason: usize, params: &PluginParamSnapshot, ) -> ParamChangeResult

Called when a param changes. Reason is the param index. Return param updates to be written back to the port driver.

fn compression_aware(&self) -> bool

Whether this plugin can process compressed (codec != None) arrays (C++ compressionAware_, G3). Defaults to false: a plugin that operates on raw pixels must not be handed compressed bytes — the runtime drops compressed input and counts it into DroppedArrays. A codec/file plugin that understands compressed data overrides this.

fn does_array_callbacks(&self) -> bool

Whether this plugin delivers arrays to downstream plugins, i.e. the initial NDArrayCallbacks param value. Defaults to true: most plugins do array callbacks. Terminal plugins that never deliver downstream (NDPluginStdArrays, NDPluginAttribute, every NDPluginFile writer) override this to false so the param reflects the behaviour, matching C (e.g. NDPluginFile.cpp:948 setIntegerParam(NDArrayCallbacks, 0)).

fn array_data_handle( &self, ) -> Option<Arc<Mutex<RawMutex, Option<Arc<NDArray>>>>>

Return a handle to the latest NDArray data for array reads. Override this in plugins like NDPluginStdArrays that serve pixel data via readInt8Array/readInt16Array/etc.