From 29e92840c5eb6e56e047d1b0d2b80db66e9eaae5 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 8 Feb 2017 15:27:06 +0200
Subject: Make scheduler::async() indicate whether the task executed
 synchronously

---
 build2/scheduler.txx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'build2/scheduler.txx')

diff --git a/build2/scheduler.txx b/build2/scheduler.txx
index 01408ca..d5e9afa 100644
--- a/build2/scheduler.txx
+++ b/build2/scheduler.txx
@@ -7,7 +7,7 @@
 namespace build2
 {
   template <typename F, typename... A>
-  void scheduler::
+  bool scheduler::
   async (size_t start_count, atomic_count& task_count, F&& f, A&&... a)
   {
     using task = task_type<F, A...>;
@@ -56,7 +56,7 @@ namespace build2
     if (td == nullptr)
     {
       forward<F> (f) (forward<A> (a)...);
-      return;
+      return false;
     }
 
     // Increment the task count.
@@ -70,6 +70,8 @@ namespace build2
     //
     if (active_ < max_active_)
       activate_helper (l);
+
+    return true;
   }
 
   template <typename F, typename... A>
-- 
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