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-rw-r--r--src/rlc.cpp15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/rlc.cpp b/src/rlc.cpp
index a76703d5..816efff5 100644
--- a/src/rlc.cpp
+++ b/src/rlc.cpp
@@ -71,6 +71,21 @@ int gprs_rlc_v_b::mark_for_resend(const uint16_t v_a, const uint16_t v_s,
return resend;
}
+int gprs_rlc_v_b::count_unacked(const uint16_t v_a, const uint16_t v_s,
+ const uint16_t mod_sns, const uint16_t mod_sns_half)
+{
+ uint16_t unacked = 0;
+ uint16_t bsn;
+
+ for (bsn = v_a; bsn != v_s; bsn = (bsn + 1) & mod_sns) {
+ uint16_t index = bsn & mod_sns_half;
+ if (!is_acked(index))
+ unacked += 1;
+ }
+
+ return unacked;
+}
+
void gprs_rlc_v_b::update(BTS *bts, char *show_rbb, uint8_t ssn,
const uint16_t v_a,
const uint16_t mod_sns, const uint16_t mod_sns_half,