4 files changed, 22 insertions, 4 deletions
diff --git a/lib/block_handlers.cpp b/lib/block_handlers.cpp
index a3a42b6..384deaa 100644
--- a/lib/block_handlers.cpp
+++ b/lib/block_handlers.cpp
@@ -85,6 +85,10 @@ void ElementImpl::handle_block_msg(
 
     ASSERT(msg.type() == typeid(TopBlockMessage));
 
+    //FIXME leave the marked done blocks done...
+    //this helps QA tests to pass that re-use top block without diconnecting the old design
+    if (this->block_state == BLOCK_STATE_DONE) return;
+
     const size_t num_inputs = task_iface.get_num_inputs();
     const size_t num_outputs = task_iface.get_num_outputs();
 
diff --git a/lib/block_task.cpp b/lib/block_task.cpp
index f6f3dcb..6329ab0 100644
--- a/lib/block_task.cpp
+++ b/lib/block_task.cpp
@@ -196,7 +196,7 @@ void ElementImpl::handle_task(const tsbe::TaskInterface &task_iface)
     //-- the work
     //------------------------------------------------------------------
     work_noutput_items = num_output_items;
-    /*if (this->enable_fixed_rate)*/ work_noutput_items = std::min(
+    if (this->enable_fixed_rate) work_noutput_items = std::min(
         work_noutput_items, myulround((num_input_items)*this->relative_rate));
     this->work_task_iface = task_iface;
     this->work_ret = -1;
diff --git a/lib/gras_impl/interruptible_thread.hpp b/lib/gras_impl/interruptible_thread.hpp
index 7546019..9ac7349 100644
--- a/lib/gras_impl/interruptible_thread.hpp
+++ b/lib/gras_impl/interruptible_thread.hpp
@@ -69,6 +69,12 @@ namespace gnuradio
             }
             _thread->interrupt();
             _thread->join();
+
+            //We dont need to manually remove and delete the thread,
+            //but I thought it was nicer than thread group accumulating
+            //dead threads run after run.
+            _thread_group->remove_thread(_thread);
+            delete _thread;
         }
 
         GRAS_FORCE_INLINE void call(void)
diff --git a/lib/top_block.cpp b/lib/top_block.cpp
index bea7371..fdabad1 100644
--- a/lib/top_block.cpp
+++ b/lib/top_block.cpp
@@ -106,16 +106,24 @@ void TopBlock::run(void)
     this->wait();
 }
 
+GRAS_FORCE_INLINE void wait_thread_yield(void)
+{
+    //boost::this_thread::yield();
+    boost::this_thread::sleep(boost::posix_time::milliseconds(1));
+}
+
 void TopBlock::wait(void)
 {
     //We do not need to join "special" threads;
     //the token mechainism will do just fine.
-    (*this)->thread_group->join_all();
+    //FIXME it might be nice to uncomment this for some nice quiet wait(),
+    //however, thread group cant be joined twice and this breaks some qa code
+    //(*this)->thread_group->join_all();
 
     //wait for all blocks to release the token
     while (not (*this)->token.unique())
     {
-        boost::this_thread::yield();
+        wait_thread_yield();
     }
 }
 
@@ -127,7 +135,7 @@ bool TopBlock::wait(const double timeout)
     //wait for all blocks to release the token
     while (not (*this)->token.unique() or boost::get_system_time() < exit_time)
     {
-        boost::this_thread::yield();
+        wait_thread_yield();
     }
 
     return (*this)->token.unique();