From ad9cdb9b172ecd7acf5e55b60f3f77626d72f14f Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 13 May 2021 09:02:17 +0200
Subject: Do lazy allocation of shadow task queues

---
 libbuild2/scheduler.txx | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'libbuild2/scheduler.txx')

diff --git a/libbuild2/scheduler.txx b/libbuild2/scheduler.txx
index 9cfc411..5c6b339 100644
--- a/libbuild2/scheduler.txx
+++ b/libbuild2/scheduler.txx
@@ -54,6 +54,9 @@ namespace build2
       if (tq->shutdown)
         throw_generic_error (ECANCELED);
 
+      if (tq->data == nullptr)
+        tq->data.reset (new task_data[task_queue_depth_]);
+
       if (task_data* td = push (*tq))
       {
         // Package the task (under lock).
-- 
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