From 548a4ae29d02cfad20f6f14b14bae045a9ad91a7 Mon Sep 17 00:00:00 2001
From: Ismael Gomez <ismagom@gmail.com>
Date: Fri, 16 Mar 2018 11:22:40 +0100
Subject: [PATCH 1/2] RRC is_connected return and srsgui crashing if ports=0
 when init

---
 srsue/hdr/phy/phch_worker.h | 12 ++++++++++--
 srsue/src/upper/rrc.cc      |  2 +-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/srsue/hdr/phy/phch_worker.h b/srsue/hdr/phy/phch_worker.h
index e87603e5d..28c4715ad 100644
--- a/srsue/hdr/phy/phch_worker.h
+++ b/srsue/hdr/phy/phch_worker.h
@@ -63,8 +63,16 @@ public:
   void write_trace(std::string filename);
   
   int read_ce_abs(float *ce_abs, uint32_t tx_antenna, uint32_t rx_antenna);
-  uint32_t get_cell_nof_ports() {return cell.nof_ports;};
-  uint32_t get_rx_nof_antennas() {return ue_dl.nof_rx_antennas;};
+  uint32_t get_cell_nof_ports() {
+    if (cell_initiated) {
+      return cell.nof_ports;
+    } else {
+      return 1;
+    }
+  };
+  uint32_t get_rx_nof_antennas() {
+    return ue_dl.nof_rx_antennas;
+  };
   int read_pdsch_d(cf_t *pdsch_d);
   void start_plot();
 
diff --git a/srsue/src/upper/rrc.cc b/srsue/src/upper/rrc.cc
index 83d7174ca..e419ea710 100644
--- a/srsue/src/upper/rrc.cc
+++ b/srsue/src/upper/rrc.cc
@@ -156,7 +156,7 @@ rrc_state_t rrc::get_state() {
 }
 
 bool rrc::is_connected() {
-  return (RRC_STATE_CONNECTED >= state && state < RRC_STATE_LEAVE_CONNECTED);
+  return (state >= RRC_STATE_CONNECTED && state < RRC_STATE_LEAVE_CONNECTED);
 }
 
 bool rrc::have_drb() {

From 321a750f561d276d0bbe8a4b066ff239a735f7be Mon Sep 17 00:00:00 2001
From: Ismael Gomez <ismagom@gmail.com>
Date: Fri, 16 Mar 2018 11:23:10 +0100
Subject: [PATCH 2/2] Added features to ringbuffer

---
 lib/include/srslte/phy/utils/ringbuffer.h |  2 ++
 lib/src/phy/utils/ringbuffer.c            | 10 +++++++---
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/include/srslte/phy/utils/ringbuffer.h b/lib/include/srslte/phy/utils/ringbuffer.h
index b8d0cd5c9..a93ebf181 100644
--- a/lib/include/srslte/phy/utils/ringbuffer.h
+++ b/lib/include/srslte/phy/utils/ringbuffer.h
@@ -28,6 +28,8 @@ SRSLTE_API void srslte_ringbuffer_reset(srslte_ringbuffer_t *q);
 
 SRSLTE_API int  srslte_ringbuffer_status(srslte_ringbuffer_t *q);
 
+SRSLTE_API int srslte_ringbuffer_space(srslte_ringbuffer_t *q);
+
 SRSLTE_API int  srslte_ringbuffer_write(srslte_ringbuffer_t *q,
                                        void *ptr,
                                        int nof_bytes);
diff --git a/lib/src/phy/utils/ringbuffer.c b/lib/src/phy/utils/ringbuffer.c
index 8f0c3edf2..02b98a4d8 100644
--- a/lib/src/phy/utils/ringbuffer.c
+++ b/lib/src/phy/utils/ringbuffer.c
@@ -13,11 +13,10 @@ int srslte_ringbuffer_init(srslte_ringbuffer_t *q, int capacity)
   }
   q->active     = true;
   q->capacity   = capacity;
-  srslte_ringbuffer_reset(q);
-  
   pthread_mutex_init(&q->mutex, NULL); 
   pthread_cond_init(&q->cvar, NULL);
-  
+  srslte_ringbuffer_reset(q);
+
   return 0; 
 }
 
@@ -48,6 +47,11 @@ int srslte_ringbuffer_status(srslte_ringbuffer_t *q)
   return q->count;
 }
 
+int srslte_ringbuffer_space(srslte_ringbuffer_t *q)
+{
+  return q->capacity - q->count;
+}
+
 int srslte_ringbuffer_write(srslte_ringbuffer_t *q, void *p, int nof_bytes)
 {
   uint8_t *ptr = (uint8_t*) p;