From 63f6a8256e3f9fb47cb941be63baa70e2be48d3b Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 2 Feb 2017 15:35:44 +0200
Subject: Implement target_set locking, including extension update

---
 build2/target.ixx | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'build2/target.ixx')

diff --git a/build2/target.ixx b/build2/target.ixx
index f3417aa..19e0dfa 100644
--- a/build2/target.ixx
+++ b/build2/target.ixx
@@ -4,6 +4,27 @@
 
 namespace build2
 {
+  // target
+  //
+  inline const string* target::
+  ext () const
+  {
+    slock l (targets.mutex_);
+    return *ext_ ? &**ext_ : nullptr;
+  }
+
+  inline target_key target::
+  key () const
+  {
+    const string* e (ext ());
+    return target_key {
+      &type (),
+      &dir,
+      &out,
+      &name,
+      e != nullptr ? optional<string> (*e) : nullopt};
+  }
+
   // prerequisite_member
   //
   inline prerequisite prerequisite_member::
-- 
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