Function pamoja_estop_gate 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_estop_gate(
    estop: *const PamojaEStop,
    desired: PamojaTwist,
) -> PamojaTwist

Passes a command through an e-stop.

Returns

desired while the stop is clear, or a zero twist while it is engaged or if estop is null.

Safety

estop must be a live handle from pamoja_estop_new, or null.