Implement backbone of overload statistics.

- Implement overload statistics structure.
- Implement function that keeps track of overload statistics.
- Implement function that writes overload statistics to descriptor.
- Unittest for the whole logic.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/feature/relay/router.c b/src/feature/relay/router.c
index 73e8393761..88160bd1cb 100644
--- a/src/feature/relay/router.c
+++ b/src/feature/relay/router.c
@@ -3372,6 +3372,12 @@ extrainfo_dump_to_string_stats_helper(smartlist_t *chunks,
       if (contents)
         smartlist_add(chunks, contents);
     }
+    if (options->OverloadStatistics) {
+      contents = rep_hist_get_overload_stats_lines();
+      if (contents) {
+        smartlist_add(chunks, contents);
+      }
+    }
     /* bridge statistics */
     if (should_record_bridge_info(options)) {
       const char *bridge_stats = geoip_get_bridge_stats_extrainfo(now);