poll: Add a max_delay parameter to PollController::expireTimedout
Currently the maximum additional delay is hard coded to 13. This
value depends on the source of the frame number value.
This commit adds the max_delay parameter to make it caller dependant.
Sponsored-by: On-Waves ehf
diff --git a/src/bts.cpp b/src/bts.cpp
index 141431a..661c511 100644
--- a/src/bts.cpp
+++ b/src/bts.cpp
@@ -136,8 +136,16 @@
void BTS::set_current_frame_number(int fn)
{
+ /* The UL frame numbers lag 3 behind the DL frames and the data
+ * indication is only sent after all 4 frames of the block have been
+ * received. Sometimes there is an idle frame between the end of one
+ * and start of another frame (every 3 blocks). So the timeout should
+ * definitely be there if we're more than 8 frames past poll_fn. Let's
+ * stay on the safe side and say 13 or more. */
+ const static int max_delay = 13;
+
m_cur_fn = fn;
- m_pollController.expireTimedout(m_cur_fn);
+ m_pollController.expireTimedout(m_cur_fn, max_delay);
}
int BTS::add_paging(uint8_t chan_needed, uint8_t *identity_lv)