From 8763d2e0eb9155bf7b45645163ac01acef3f25ad Mon Sep 17 00:00:00 2001
From: Tor Egge <Tor.Egge@broadpark.no>
Date: Thu, 26 Oct 2017 22:40:21 +0200
Subject: Use std::mutex and std::condition_variable instead of FastOS_Cond.

---
 searchlib/src/tests/postinglistbm/andstress.cpp | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/searchlib/src/tests/postinglistbm/andstress.cpp b/searchlib/src/tests/postinglistbm/andstress.cpp
index d28efb9c0e2..736d53508b4 100644
--- a/searchlib/src/tests/postinglistbm/andstress.cpp
+++ b/searchlib/src/tests/postinglistbm/andstress.cpp
@@ -13,6 +13,8 @@
 #include <vespa/searchlib/test/fakedata/fakezcbfilterocc.h>
 #include <vespa/searchlib/test/fakedata/fpfactory.h>
 #include <vespa/fastos/thread.h>
+#include <mutex>
+#include <condition_variable>
 
 #include <vespa/log/log.h>
 LOG_SETUP(".andstress");
@@ -51,7 +53,8 @@ private:
 
     std::vector<std::vector<FakePosting::SP> > _postings;
 
-    FastOS_Cond _taskCond;
+    std::mutex              _taskLock;
+    std::condition_variable _taskCond;
     unsigned int _taskIdx;
     uint32_t _numTasks;
 
@@ -135,6 +138,7 @@ AndStressMaster::AndStressMaster(search::Rand48 &rnd,
       _workersDone(0),
       _wordSet(wordSet),
       _postings(FakeWordSet::NUM_WORDCLASSES),
+      _taskLock(),
       _taskCond(),
       _taskIdx(0),
       _numTasks(numTasks),
@@ -276,16 +280,15 @@ AndStressMaster::Task *
 AndStressMaster::getTask()
 {
     Task *result = NULL;
-    _taskCond.Lock();
+    std::unique_lock<std::mutex> taskGuard(_taskLock);
     if (_taskIdx < _tasks.size()) {
         result = &_tasks[_taskIdx];
         ++_taskIdx;
     } else {
         _workersDone++;
         if (_workersDone == _workers.size())
-            _taskCond.Broadcast();
+            _taskCond.notify_all();
     }
-    _taskCond.Unlock();
     return result;
 }
 
@@ -329,10 +332,11 @@ AndStressMaster::runWorkers(const std::string &postingFormat)
 
     for (unsigned int i = 0; i < _workers.size(); ++i)
         _threadPool->NewThread(_workers[i]);
-    _taskCond.Lock();
-    while (_workersDone < _workers.size())
-        _taskCond.Wait();
-    _taskCond.Unlock();
+    {
+        std::unique_lock<std::mutex> taskGuard(_taskLock);
+        while (_workersDone < _workers.size())
+            _taskCond.wait(taskGuard);
+    }
     tv.SetNow();
     after = tv.Secs();
     LOG(info,
-- 
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