From b71dab87f10699bba34668a754d091f51034b886 Mon Sep 17 00:00:00 2001
From: Andre Puschmann <andre@softwareradiosystems.com>
Date: Fri, 2 Nov 2018 21:46:03 +0100
Subject: [PATCH] add function to query if RLC bearer exists (the
 implementation)

---
 lib/include/srslte/upper/rlc.h | 1 +
 lib/src/upper/rlc.cc           | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/lib/include/srslte/upper/rlc.h b/lib/include/srslte/upper/rlc.h
index f211edf72..d269ef0de 100644
--- a/lib/include/srslte/upper/rlc.h
+++ b/lib/include/srslte/upper/rlc.h
@@ -90,6 +90,7 @@ public:
   void del_bearer(uint32_t lcid);
   void del_bearer_mrb(uint32_t lcid);
   void change_lcid(uint32_t old_lcid, uint32_t new_lcid);
+  bool has_bearer(uint32_t lcid);
 
 private:
   void reset_metrics(); 
diff --git a/lib/src/upper/rlc.cc b/lib/src/upper/rlc.cc
index 886de474a..ef2624791 100644
--- a/lib/src/upper/rlc.cc
+++ b/lib/src/upper/rlc.cc
@@ -571,6 +571,15 @@ exit:
 }
 
 
+bool rlc::has_bearer(uint32_t lcid)
+{
+  pthread_rwlock_rdlock(&rwlock);
+  bool ret = valid_lcid(lcid);
+  pthread_rwlock_unlock(&rwlock);
+  return ret;
+}
+
+
 /*******************************************************************************
   Helpers (Lock must be hold when calling those)
 *******************************************************************************/