1 files changed, 8 insertions, 1 deletions
diff --git a/src/third_party/asio-master/asio/include/asio/detail/win_iocp_operation.hpp b/src/third_party/asio-master/asio/include/asio/detail/win_iocp_operation.hpp
index 81d43f07f64..e0cbcc56ced 100644
--- a/src/third_party/asio-master/asio/include/asio/detail/win_iocp_operation.hpp
+++ b/src/third_party/asio-master/asio/include/asio/detail/win_iocp_operation.hpp
@@ -51,6 +51,10 @@ public:
     func_(0, this, asio::error_code(), 0);
   }
 
+  ULONG_PTR& completionKey() {
+      return completionKey_;
+  }
+
 protected:
   typedef void (*func_type)(
       void*, win_iocp_operation*,
@@ -58,7 +62,8 @@ protected:
 
   win_iocp_operation(func_type func)
     : next_(0),
-      func_(func)
+      func_(func),
+      completionKey_(0)
   {
     reset();
   }
@@ -76,6 +81,7 @@ protected:
     OffsetHigh = 0;
     hEvent = 0;
     ready_ = 0;
+    completionKey_ = 0;
   }
 
 private:
@@ -84,6 +90,7 @@ private:
   win_iocp_operation* next_;
   func_type func_;
   long ready_;
+  ULONG_PTR completionKey_;
 };
 
 } // namespace detail