From a7d8eaba540ce272bc4fc19afdeae177a3b086d9 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Fri, 15 Apr 2016 15:25:15 +0200
Subject: BinaryCacheStore: Do negative caching of .narinfo lookups

---
 src/libstore/binary-cache-store.hh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/libstore/binary-cache-store.hh')

diff --git a/src/libstore/binary-cache-store.hh b/src/libstore/binary-cache-store.hh
index 55bba6278..dcf06b3d1 100644
--- a/src/libstore/binary-cache-store.hh
+++ b/src/libstore/binary-cache-store.hh
@@ -24,7 +24,7 @@ private:
 
     struct State
     {
-        LRUCache<Path, ref<NarInfo>> narInfoCache{32 * 1024};
+        LRUCache<Path, std::shared_ptr<NarInfo>> narInfoCache{32 * 1024};
     };
 
     Sync<State> state;
@@ -51,6 +51,7 @@ public:
     {
         std::atomic<uint64_t> narInfoRead{0};
         std::atomic<uint64_t> narInfoReadAverted{0};
+        std::atomic<uint64_t> narInfoMissing{0};
         std::atomic<uint64_t> narInfoWrite{0};
         std::atomic<uint64_t> narInfoCacheSize{0};
         std::atomic<uint64_t> narRead{0};
-- 
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