From: Radoslaw Zarzynski <rzarzyns@redhat.com>
Date: Sun, 15 Sep 2019 15:17:45 +0000 (+0200)
Subject: crimson: introduce all_same_way() to errorator.
X-Git-Tag: v15.1.0~801^2~29
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=de325ade55e23856439d30abda4b0205252dda66;p=ceph.git

crimson: introduce all_same_way() to errorator.

Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
---

diff --git a/src/crimson/common/errorator.h b/src/crimson/common/errorator.h
index 55710106341f..0cc06ea1887e 100644
--- a/src/crimson/common/errorator.h
+++ b/src/crimson/common/errorator.h
@@ -412,6 +412,18 @@ struct errorator {
     }
   };
 
+  template <class ErrorFunc>
+  static decltype(auto) all_same_way(ErrorFunc&& error_func) {
+    return [
+      error_func = std::forward<ErrorFunc>(error_func)
+    ] (auto&& e) mutable -> decltype(auto) {
+      using decayed_t = std::decay_t<decltype(e)>;
+      auto&& handler =
+        decayed_t::error_t::handle(std::forward<ErrorFunc>(error_func));
+      return std::invoke(std::move(handler), std::forward<decltype(e)>(e));
+    };
+  };
+
   // get a new errorator by extending current one with new error
   template <class... NewAllowedErrorsT>
   using extend = errorator<AllowedErrors..., NewAllowedErrorsT...>;