From 4a2a3bd5033744c31377d31ca54be00622280a1b Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 26 Feb 2024 09:14:37 +0200
Subject: Add ability to request serialization from scheduler

In particular, this can be used to make sure no other recipe is being
executed in parallel with the caller.
---
 libbuild2/context.hxx | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'libbuild2/context.hxx')

diff --git a/libbuild2/context.hxx b/libbuild2/context.hxx
index 2dec54a..33fc892 100644
--- a/libbuild2/context.hxx
+++ b/libbuild2/context.hxx
@@ -849,14 +849,20 @@ namespace build2
   //
   struct LIBBUILD2_SYMEXPORT phase_unlock
   {
-    phase_unlock (context&, bool unlock = true, bool delay = false);
+    explicit phase_unlock (context*, bool delay = false);
+    explicit phase_unlock (context& ctx, bool delay = false)
+      : phase_unlock (&ctx, delay) {}
+
     ~phase_unlock () noexcept (false);
 
     void
     unlock ();
 
+    void
+    lock ();
+
     context* ctx;
-    phase_lock* lock;
+    phase_lock* lock_;
   };
 
   // Assuming we have a lock on the current phase, temporarily switch to a
-- 
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