3 files changed, 43 insertions, 14 deletions

diff --git a/src/bp_sim.cpp b/src/bp_sim.cpp
index 040c0858..31ce0440 100755
--- a/src/bp_sim.cpp
+++ b/src/bp_sim.cpp
@@ -4705,13 +4705,11 @@ int CErfIFStl::send_node(CGenNode * _no_to_use){
             rte_pktmbuf_free(m);
 
         }
-    
-        BP_ASSERT(m_writer);
-        bool res=m_writer->write_packet(m_raw);
-    
-    
-        BP_ASSERT(res);
+
+        int rc = write_pkt(m_raw);
+        BP_ASSERT(rc == 0);
     }
+
     return (0);
 }
 
@@ -4749,13 +4747,9 @@ int CErfIF::send_node(CGenNode * node){
 
     //utl_DumpBuffer(stdout,p,  12,0);
 
-    BP_ASSERT(m_writer);
-
-    bool res=m_writer->write_packet(m_raw);
-
-    //utl_DumpBuffer(stdout,m_raw->raw,m_raw->pkt_len,0);
+    int rc = write_pkt(m_raw);
+    BP_ASSERT(rc == 0);
 
-    BP_ASSERT(res);
     rte_pktmbuf_free(m);
    }
    return (0);
diff --git a/src/bp_sim.h b/src/bp_sim.h
index 4b906912..c8775a61 100755
--- a/src/bp_sim.h
+++ b/src/bp_sim.h
@@ -1835,7 +1835,7 @@ public:
 
 protected:
 
-    void fill_raw_packet(rte_mbuf_t * m,CGenNode * node,pkt_dir_t dir);
+    virtual void fill_raw_packet(rte_mbuf_t * m,CGenNode * node,pkt_dir_t dir);
 
     CFileWriterBase         * m_writer;
     CCapPktRaw              * m_raw;
@@ -1849,6 +1849,41 @@ public:
     virtual int send_node(CGenNode * node);
 };
 
+/**
+ * same as regular STL but no I/O (dry run)
+ * 
+ * @author imarom (07-Jan-16)
+ */
+class CErfIFStlNull : public CErfIFStl {
+public:
+
+    virtual int open_file(std::string file_name) {
+        return (0);
+    }
+
+    virtual int write_pkt(CCapPktRaw *pkt_raw) {
+        return (0);
+    }
+
+    virtual int close_file(void) {
+        return (0);
+    }
+
+    virtual void fill_raw_packet(rte_mbuf_t * m,CGenNode * node,pkt_dir_t dir) {
+
+    }
+
+    virtual int update_mac_addr_from_global_cfg(pkt_dir_t       dir, uint8_t * p){
+        return (0);
+    }
+
+
+    virtual int flush_tx_queue(void){
+        return (0);
+
+    }
+
+};
 
 
 static inline int fill_pkt(CCapPktRaw  * raw,rte_mbuf_t * m){
diff --git a/src/sim/trex_sim.h b/src/sim/trex_sim.h
index f11f01c4..8feb7bc0 100644
--- a/src/sim/trex_sim.h
+++ b/src/sim/trex_sim.h
@@ -154,7 +154,7 @@ private:
     TrexPublisher   *m_publisher;
     CFlowGenList     m_fl;
     CErfIFStl        m_erf_vif;
-    CNullIF          m_null_erf_vif;
+    CErfIFStlNull    m_null_erf_vif;
     bool             m_verbose;
 
     int              m_port_count;