From f93038fbee1631b95922b0742e0fd00fa8dae02e Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 27 Jan 2017 15:25:26 +0200
Subject: Add notion of phase, enforce

---
 build2/variable | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'build2/variable')

diff --git a/build2/variable b/build2/variable
index e296e37..d31d20f 100644
--- a/build2/variable
+++ b/build2/variable
@@ -781,7 +781,7 @@ namespace build2
 
   // Variable pool.
   //
-  // Protected by the model mutex.
+  // The global version is protected by the model mutex.
   //
   class variable_pool
   {
@@ -856,6 +856,8 @@ namespace build2
     void
     clear () {map_.clear ();}
 
+    variable_pool (): variable_pool (false) {}
+
     // Proof of lock for RW access.
     //
     variable_pool&
@@ -902,6 +904,10 @@ namespace build2
       return r;
     }
 
+    explicit
+    variable_pool (bool global): global_ (global) {}
+
+    bool global_;
     map map_;
   };
 
-- 
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