From 58e495733d402bb4e97238ae6c8e8344eb4b2161 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 19 Sep 2022 14:17:10 +0200
Subject: Add target_lock::first to distinguish first lock of target

---
 libbuild2/algorithm.hxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libbuild2/algorithm.hxx')

diff --git a/libbuild2/algorithm.hxx b/libbuild2/algorithm.hxx
index b7f6809..e558d3a 100644
--- a/libbuild2/algorithm.hxx
+++ b/libbuild2/algorithm.hxx
@@ -191,6 +191,7 @@ namespace build2
     action_type  action;
     target_type* target = nullptr;
     size_t       offset = 0;
+    bool         first;
 
     explicit operator bool () const {return target != nullptr;}
 
@@ -209,13 +210,14 @@ namespace build2
     // Implementation details.
     //
     ~target_lock ();
-    target_lock (action_type, target_type*, size_t);
+    target_lock (action_type, target_type*, size_t, bool);
 
     struct data
     {
       action_type action;
       target_type* target;
       size_t offset;
+      bool first;
     };
 
     data
-- 
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