1 function trace._close_section()

2 local pos = #trace._stack

3 local closed_section = trace._stack[pos]

4 if not closed_section then

5 error("All trace sections have been closed already.")

6 end

7 --trace.debug("END " .. extos.monotonic_hires_time() .. " / " .. os.clock())

8 trace._stack[pos] = nil

9 return closed_section

10 end