tbf: Add frames_since_last_poll method
This functions calculates the number of frames that have passed since
the last DL poll (RRBP flag set) has been sent. It returns a value
less than zero (fn_now - fn_sched) if the block has been scheduled but
not yet sent.
If the function is called before the first data block has been sent
it will return -1.
If the function is called before the first DL poll is sent, it
returns the number of frames since the first data block has been
sent.
Sponsored-by: On-Waves ehf
diff --git a/src/tbf.cpp b/src/tbf.cpp
index 388f82d..56804c3 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -470,6 +470,8 @@
llist_add(&tbf->list.list, &bts->dl_tbfs);
tbf->bts->tbf_dl_created();
+ tbf->m_last_dl_poll_fn = -1;
+
gettimeofday(&tbf->m_bw.dl_bw_tv, NULL);
gettimeofday(&tbf->m_bw.dl_loss_tv, NULL);