print a warning if getnameinfo unexpectedly takes any significant time

wiedehopf · May 20, 2024 · ff9465a · ff9465a
1 parent d38fd66
commit ff9465a
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/net_io.c b/net_io.c
@@ -576,11 +576,19 @@ static void serviceConnect(struct net_connector *con, int64_t now) {
  con->try_addr = con->addr_info;
  }
 
+ struct timespec watch;
+ startWatch(&watch);
+
  getnameinfo(con->try_addr->ai_addr, con->try_addr->ai_addrlen,
  con->resolved_addr, sizeof(con->resolved_addr) - 3,
  NULL, 0,
  NI_NUMERICHOST | NI_NUMERICSERV);
 
+ int64_t getnameinfoElapsed = lapWatch(&watch);
+ if (getnameinfoElapsed > 1) {
+ fprintf(stderr, "WARNING: getnameinfo() took %"PRId64" ms\n", getnameinfoElapsed);
+ }
+
  if (strcmp(con->resolved_addr, con->address) == 0) {
  con->resolved_addr[0] = '\0';
  } else {