From 61ac67105ef31e1ea31014e50e5b6deb74674594 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 13 Aug 2021 08:09:04 +0200
Subject: Cache git status results in version module

---
 libbuild2/utility.hxx | 33 ---------------------------------
 1 file changed, 33 deletions(-)

(limited to 'libbuild2/utility.hxx')

diff --git a/libbuild2/utility.hxx b/libbuild2/utility.hxx
index c3e1921..c7ee2f4 100644
--- a/libbuild2/utility.hxx
+++ b/libbuild2/utility.hxx
@@ -535,39 +535,6 @@ namespace build2
       verbosity, pe, args, forward<F> (f), error, ignore_exit, checksum);
   }
 
-  // Global, MT-safe information cache. Normally used for caching information
-  // (versions, targets, search paths, etc) extracted from other programs
-  // (compilers, etc).
-  //
-  // The key is normally a hash of all the inputs that can affect the output.
-  //
-  // Note that insertion is racy and it's possible the cache entry already
-  // exists, in which case we ignore our value assuming it is the same.
-  //
-  template <typename T>
-  class global_cache
-  {
-  public:
-    const T*
-    find (const string& k) const
-    {
-      mlock l (mutex_);
-      auto i (cache_.find (k));
-      return i != cache_.end () ? &i->second : nullptr;
-    }
-
-    const T&
-    insert (string k, T v)
-    {
-      mlock l (mutex_);
-      return cache_.insert (make_pair (move (k), move (v))).first->second;
-    }
-
-  private:
-    map<string, T> cache_;
-    mutable mutex mutex_;
-  };
-
   // File descriptor streams.
   //
   fdpipe
-- 
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