From efb9c3e0e6b612d5bfadc7a2b984c14b5439335c Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Wed, 19 Apr 2017 20:48:38 +0300
Subject: Fix repository root module to handle retries properly

---
 mod/mod-repository-root | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'mod/mod-repository-root')

diff --git a/mod/mod-repository-root b/mod/mod-repository-root
index e028fb8..57db93a 100644
--- a/mod/mod-repository-root
+++ b/mod/mod-repository-root
@@ -23,6 +23,8 @@ namespace brep
   public:
     repository_root ();
 
+    // Copy constructible-only type.
+    //
     // Create a shallow copy (handling instance) if initialized and a deep
     // copy (context exemplar) otherwise.
     //
@@ -54,6 +56,13 @@ namespace brep
     shared_ptr<package_version_details> package_version_details_;
     shared_ptr<repository_details> repository_details_;
     shared_ptr<options::repository_root> options_;
+
+    // Sub-module the request is dispatched to. Initially is NULL. It is set
+    // by the first call to handle() to a deep copy of the selected exemplar.
+    // The subsequent calls of handle() (that may take place after the retry
+    // exception is thrown) will use the existing handler instance.
+    //
+    unique_ptr<module> handler_;
   };
 }
 
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