5 files changed, 22 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/runtime/gr_top_block.cc b/gnuradio-core/src/lib/runtime/gr_top_block.cc
index b2523afc9..5cb0ccdea 100644
--- a/gnuradio-core/src/lib/runtime/gr_top_block.cc
+++ b/gnuradio-core/src/lib/runtime/gr_top_block.cc
@@ -90,6 +90,12 @@ gr_top_block::unlock()
   d_impl->unlock();
 }
 
+void
+gr_top_block::dump()
+{
+  d_impl->dump();
+}
+
 bool
 gr_top_block::is_running()
 {
diff --git a/gnuradio-core/src/lib/runtime/gr_top_block.h b/gnuradio-core/src/lib/runtime/gr_top_block.h
index 0209546fe..637a38468 100644
--- a/gnuradio-core/src/lib/runtime/gr_top_block.h
+++ b/gnuradio-core/src/lib/runtime/gr_top_block.h
@@ -100,6 +100,11 @@ public:
   virtual void unlock();
 
   /*!
+   * Displays flattened flowgraph edges and block connectivity
+   */
+  void dump();
+
+  /*!
    * Returns true if flowgraph is running
    */
   bool is_running();
diff --git a/gnuradio-core/src/lib/runtime/gr_top_block.i b/gnuradio-core/src/lib/runtime/gr_top_block.i
index f48dea74e..d2e8e3b41 100644
--- a/gnuradio-core/src/lib/runtime/gr_top_block.i
+++ b/gnuradio-core/src/lib/runtime/gr_top_block.i
@@ -47,6 +47,7 @@ public:
   void lock();
   void unlock() throw (std::runtime_error);
   bool is_running();
+  void dump();
 };
 
 %inline %{
diff --git a/gnuradio-core/src/lib/runtime/gr_top_block_impl.cc b/gnuradio-core/src/lib/runtime/gr_top_block_impl.cc
index 51755a65d..359665a77 100644
--- a/gnuradio-core/src/lib/runtime/gr_top_block_impl.cc
+++ b/gnuradio-core/src/lib/runtime/gr_top_block_impl.cc
@@ -231,3 +231,10 @@ gr_top_block_impl::restart()
 
   start_threads();
 }
+
+void
+gr_top_block_impl::dump()
+{
+  if (d_ffg)
+    d_ffg->dump();
+}
diff --git a/gnuradio-core/src/lib/runtime/gr_top_block_impl.h b/gnuradio-core/src/lib/runtime/gr_top_block_impl.h
index 1868cffd6..abdfa9964 100644
--- a/gnuradio-core/src/lib/runtime/gr_top_block_impl.h
+++ b/gnuradio-core/src/lib/runtime/gr_top_block_impl.h
@@ -54,6 +54,9 @@ public:
   // Unlock the top block at end of reconfiguration
   void unlock();
 
+  // Dump the flowgraph to stdout
+  void dump();
+
   // Return true if flowgraph is running
   bool is_running() const { return d_running; }