From 8fb1c09df1540aa3fca1148bed6a08ffc3090669 Mon Sep 17 00:00:00 2001
From: Dirk Engling <erdgeist@erdgeist.org>
Date: Tue, 27 Oct 2026 19:15:22 +0100
Subject: All OSes now do have a cheap monotonic clock, so no caching thread is
 needed.  Also add some relative time helpers

---
 opentracker.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

(limited to 'opentracker.c')

diff --git a/opentracker.c b/opentracker.c
index 11da486..6271b9e 100644
--- a/opentracker.c
+++ b/opentracker.c
@@ -39,7 +39,6 @@
 #include "trackerlogic.h"
 
 /* Globals */
-time_t              g_now_seconds;
 uint32_t            g_tracker_id;
 volatile int        g_opentracker_running = 1;
 int                 g_self_pipe[2];
@@ -203,7 +202,7 @@ static void handle_write(const int64_t sock) {
        waiting to write and go back to waiting for the next request */
     http_interest_drop(sock, cookie, EVENT_OUT);
     http_interest_add(sock, cookie, EVENT_IN);
-    fdstate_set_expiry(sock, g_now_seconds + OT_CLIENT_TIMEOUT);
+    fdstate_set_expiry(sock, time_future_seconds(OT_CLIENT_TIMEOUT));
   } else
     handle_dead(sock);
 }
@@ -226,7 +225,7 @@ static void handle_accept(const int64_t serversocket) {
     memcpy(cookie->ip, ip, sizeof(ot_ip6));
     cookie->interest = EVENT_IN;
 
-    if (event_add((int)sock, EVENT_IN, fdstate_open(sock, cookie, g_now_seconds + OT_CLIENT_TIMEOUT)) == -1) {
+    if (event_add((int)sock, EVENT_IN, fdstate_open(sock, cookie, time_future_seconds(OT_CLIENT_TIMEOUT))) == -1) {
       fdstate_close(sock);
       free(cookie);
       close((int)sock);
@@ -242,7 +241,7 @@ static void handle_accept(const int64_t serversocket) {
 
 static void *server_mainloop(void *args) {
   struct ot_workstruct ws;
-  time_t               next_timeout_check = g_now_seconds + OT_CLIENT_TIMEOUT_CHECKINTERVAL;
+  time_t               next_timeout_check = time_future_seconds(OT_CLIENT_TIMEOUT_CHECKINTERVAL);
   struct iovec        *iovector;
   size_t               iovec_entries;
   int                  is_partial;
@@ -461,17 +460,7 @@ int drop_privileges(const char *const serveruser, const char *const serverdir) {
 }
 
 /* Maintain our copy of the clock. time() on BSDs is very expensive. */
-static void *time_caching_worker(void *args) {
-  (void)args;
-  while (1) {
-    g_now_seconds = time(NULL);
-    sleep(5);
-  }
-  return NULL;
-}
-
 int main(int argc, char **argv) {
-  pthread_t thread_id; /* time cacher */
 
   random_init();
   if (fdstate_init() == -1)
@@ -492,8 +481,6 @@ int main(int argc, char **argv) {
   if (drop_privileges(g_serveruser ? g_serveruser : "nobody", g_serverdir) == -1)
     panic("drop_privileges failed, exiting. Last error");
 
-  g_now_seconds = time(NULL);
-  pthread_create(&thread_id, NULL, time_caching_worker, NULL);
 
   /* Create our self pipe which allows us to interrupt mainloops
      wait in case some data is available to send out */
-- 
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