for waveform_writer in self._waveform_writers:
for signal_state in self._state.pending:
waveform_writer.update(self._state.timeline.now,
- signal_state.signal, signal_state.curr)
+ signal_state.signal, signal_state.next)
# 2. commit: apply every queued signal change, waking up any waiting processes
converged = self._state.commit()