From 13a53cbe4b98393300052d23743aca8a1dc739f8 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Fri, 1 Jun 2018 14:52:26 -0500
Subject: [PATCH] msg/msg_types: hash<> for entity_addrvec_t

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/msg/msg_types.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/msg/msg_types.h b/src/msg/msg_types.h
index 61715b4be8a89..bbc64d58bd0e8 100644
--- a/src/msg/msg_types.h
+++ b/src/msg/msg_types.h
@@ -621,6 +621,21 @@ struct entity_addrvec_t {
 };
 WRITE_CLASS_ENCODER_FEATURES(entity_addrvec_t);
 
+namespace std {
+  template<> struct hash< entity_addrvec_t >
+  {
+    size_t operator()( const entity_addrvec_t& x ) const
+    {
+      static blobhash H;
+      size_t r = 0;
+      for (auto& i : x.v) {
+	r += H((const char*)&i, sizeof(i));
+      }
+      return r;
+    }
+  };
+} // namespace std
+
 /*
  * a particular entity instance
  */
-- 
2.39.5