apply patch ref #7720.

boostorg · Sep 23, 2015 · 205a1d7 · 205a1d7
1 parent 16ece26
commit 205a1d7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/include/boost/thread/win32/shared_mutex.hpp b/include/boost/thread/win32/shared_mutex.hpp
@@ -742,14 +742,14 @@ namespace boost
                 new_state.upgrade=false;
                 bool const last_reader=!--new_state.shared_count;
 
+                new_state.shared_waiting=0;
                 if(last_reader)
                 {
                     if(new_state.exclusive_waiting)
                     {
                         --new_state.exclusive_waiting;
                         new_state.exclusive_waiting_blocked=false;
                     }
-                    new_state.shared_waiting=0;
                 }
 
                 state_data const current_state=interlocked_compare_exchange(&state,new_state,old_state);