Enum Step 

pub enum Step {
    Advanced,
    Eos,
    Pending,
}

The outcome of one step_source_sink iteration: the frame-at-a-time analog of the run_* runners, for a caller that owns the loop rather than handing it to the runner. This is what lets an external scheduler drive a static pipeline one frame at a time and get control back, e.g. a C superloop calling in per frame over the FFI seam (g2g-mcu::cffi), or an RTOS task interleaving the pipeline with other work.

Variants

Advanced

One frame was pulled from the source and delivered to the sink (or dropped by a fused transform); call again for the next.

Eos

The source reported end of stream; no frame this step, stop calling.

Pending

A stage suspended (Poll::Pending). The step model is for stages that complete synchronously (polling drivers, the g2g-mcu mock/C seams); a genuinely suspending pipeline belongs on a real executor (Embassy), not a per-step caller. Reported, never silently looped.

Trait Implementations

impl Clone for Step

fn clone(&self) -> Step

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Step

impl Debug for Step

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

Formats the value using the given formatter.

impl Eq for Step

impl PartialEq for Step

fn eq(&self, other: &Step) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Step