This patch attempts to correct for the clock drift that results from
using poll() to do timing.
It still will not generate extra signals for missed timer events, but
assuming that timer events are never missed, the average interval time
will always be equal to the requested interval time.
-Jarod
--- libsofia-sip-ua/su/su_timer.c 2008-01-17 08:45:30.0 -0600
+++ libsofia-sip-ua/su/su_timer.c 2008-02-27 16:27:54.0 -0600
@@ -522,11 +522,15 @@
}
}
else if (t-sut_running == run_for_ever) {
+ su_time_t deadline = t-sut_when;
t-sut_woken++;
t-sut_when = now;
f(su_root_magic(su_task_root(t-sut_task)), t, t-sut_arg), n++;
- if (t-sut_running == run_for_ever)
- su_timer_set0(timers, t, f, t-sut_arg, now, t-sut_duration);
+ if (t-sut_running == run_for_ever) {
+while (su_time_cmp(su_time_add(deadline,t-sut_duration),now) 0)
+ deadline = su_time_add(deadline,t-sut_duration);
+su_timer_set0(timers, t, f, t-sut_arg, deadline, t-sut_duration);
+ }
}
else {
t-sut_when = now;
-
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