From bd2eb2fe72b2276de487a6b1de1c4d5acb2ecdea Mon Sep 17 00:00:00 2001
From: Nat Goodspeed <nat@lindenlab.com>
Date: Thu, 3 Sep 2015 07:13:01 -0400
Subject: [PATCH] Reconcile condition_variable::wait_for(pred) with
 wait_until(pred).

---
 include/boost/fiber/condition.hpp | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/include/boost/fiber/condition.hpp b/include/boost/fiber/condition.hpp
index cc114b03..12cd269c 100644
--- a/include/boost/fiber/condition.hpp
+++ b/include/boost/fiber/condition.hpp
@@ -160,12 +160,9 @@ public:
 
     template< typename LockType, typename Rep, typename Period, typename Pred >
     bool wait_for( LockType & lt, std::chrono::duration< Rep, Period > const& timeout_duration, Pred pred) {
-        while ( ! pred() ) {
-            if ( cv_status::timeout == wait_for( lt, timeout_duration) ) {
-                return pred();
-            }
-        }
-        return true;
+        return wait_until( lt,
+                           std::chrono::high_resolution_clock::now() + timeout_duration,
+                           pred);
     }
 };