Timers: Replace old timers with microsecond timers

The old timer interface is still kept, but implemented by new timers. The
plan is to switch from the old inteface to the new interface, then clean
it up.

1 files changed, 23 insertions, 19 deletions

diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c
index 13635586..d3506d75 100644
--- a/sysdep/unix/io.c
+++ b/sysdep/unix/io.c
@@ -122,11 +122,13 @@ tracked_fopen(pool *p, char *name, char *mode)
  * for the other fields see |timer.h|.
  */
 
+#if 0
 #define NEAR_TIMER_LIMIT 4
 
 static list near_timers, far_timers;
 static bird_clock_t first_far_timer = TIME_INFINITY;
 
+
 /* now must be different from 0, because 0 is a special value in timer->expires */
 bird_clock_t now = 1, now_real, boot_time;
 
@@ -183,7 +185,6 @@ init_times(void)
    log(L_WARN "Monotonic timer is missing");
 }
 
-
 static void
 tm_free(resource *r)
 {
@@ -382,6 +383,7 @@ tm_shot(void)
       t->hook(t);
     }
 }
+#endif
 
 /**
  * tm_parse_datetime - parse a date and time
@@ -484,6 +486,8 @@ tm_format_datetime(char *x, struct timeformat *fmt_spec, bird_clock_t t)
  *	Time clock
  */
 
+btime boot_time;
+
 void
 times_init(struct timeloop *loop)
 {
@@ -520,6 +524,19 @@ times_update(struct timeloop *loop)
   loop->real_time = 0;
 }
 
+void
+times_update_real_time(struct timeloop *loop)
+{
+  struct timespec ts;
+  int rv;
+
+  rv = clock_gettime(CLOCK_REALTIME, &ts);
+  if (rv < 0)
+    die("clock_gettime: %m");
+
+  loop->real_time = ((s64) ts.tv_sec S) + (ts.tv_nsec / 1000);
+}
+
 
 /**
  * DOC: Sockets
@@ -2349,9 +2366,6 @@ io_update_time(void)
   struct timespec ts;
   int rv;
 
-  if (!clock_monotonic_available)
-    return;
-
   /*
    * This is third time-tracking procedure (after update_times() above and
    * times_update() in BFD), dedicated to internal event log and latency
@@ -2490,14 +2504,12 @@ volatile int async_shutdown_flag;
 void
 io_init(void)
 {
-  init_list(&near_timers);
-  init_list(&far_timers);
   init_list(&sock_list);
   init_list(&global_event_list);
   krt_io_init();
-  init_times();
-  update_times();
-  boot_time = now;
+  // XXX init_times();
+  // XXX update_times();
+  boot_time = current_time();
   srandom((int) now_real);
 }
 
@@ -2508,7 +2520,6 @@ void
 io_loop(void)
 {
   int poll_tout, timeout;
-  time_t tout;
   int nfds, events, pout;
   timer2 *t;
   sock *s;
@@ -2522,17 +2533,10 @@ io_loop(void)
       times_update(&main_timeloop);
       events = ev_run_list(&global_event_list);
       timers_fire(&main_timeloop);
-    timers:
-      update_times();
-      tout = tm_first_shot();
-      if (tout <= now)
-	{
-	  tm_shot();
-	  goto timers;
-	}
       io_close_event();
 
-      poll_tout = (events ? 0 : MIN(tout - now, 3)) * 1000; /* Time in milliseconds */
+      // FIXME
+      poll_tout = (events ? 0 : 3000); /* Time in milliseconds */
       if (t = timers_first(&main_timeloop))
       {
 	times_update(&main_timeloop);