#Centipede When stop_at is less than one second ahead, trigger the alarm instead of calling alarm(0).

This is better because alarm(0) doesn't actually set or trigger an alarm.

PiperOrigin-RevId: 561435835

centipede/centipede_interface.cc

diff --git a/centipede/centipede_interface.cc b/centipede/centipede_interface.cc
index 9ea4a10..ab4ad63 100644
--- a/centipede/centipede_interface.cc
+++ b/centipede/centipede_interface.cc
@@ -74,7 +74,7 @@
 
   if (stop_at != absl::InfiniteFuture()) {
     const absl::Duration stop_in = stop_at - absl::Now();
-    if (stop_in > absl::ZeroDuration()) {
+    if (stop_in >= absl::Seconds(1)) {
       LOG(INFO) << "Setting alarm for --stop_at time " << stop_at << " (in "
                 << stop_in << ")";
       PCHECK(alarm(absl::ToInt64Seconds(stop_in)) == 0) << "Alarm already set";