lib/realtime: intro `Clock::peek_lapse`

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --git a/lib/realtime.nit b/lib/realtime.nit
index 8cfa4da..523f63e 100644 (file)
--- a/lib/realtime.nit
+++ b/lib/realtime.nit
@@ -156,4 +156,15 @@ class Clock
                time_at_last_lapse = nt
                return dt
        end
+
+       # Seconds since the last call to `lapse`, without resetting the lapse counter
+       fun peek_lapse: Float
+       do
+               var nt = new Timespec.monotonic_now
+               var dt = nt - time_at_last_lapse
+               var r = dt.to_f
+               nt.free
+               dt.free
+               return r
+       end
 end