Event Source

class gpype.backend.sources.base.event_source.EventSource

Bases: Source

Event-driven source for asynchronous data generation.

Generates events in response to external triggers.

__init__(**kwargs)

Initialize event source with asynchronous output configuration.

Parameters:

**kwargs – Additional arguments for parent Source class including channel_count, frame_size, and other configuration parameters.

start()

Start event source.

stop()

Stop event source.

trigger(value, port_name='out')

Trigger an event with the specified value.

Parameters:

• port_name – Name of the output port to trigger.

• value – Event value to be transmitted. Converted to appropriate data type and formatted as single-sample array.

step(data)

Return current event data if available.

Parameters:

data (dict[str, ndarray]) – Input data dictionary (unused for source nodes).

Return type:

dict[str, ndarray]

Returns:

Dictionary containing event data if event is active, empty dict otherwise.