(wangle) express current Core functionality with a state machine

[folly.git] / folly / MPMCQueue.h

diff --git a/folly/MPMCQueue.h b/folly/MPMCQueue.h
index 339be20cb2441dd507111edc13f37f428c3ab80e..d1e3b32d23f1e4ed72e6399d471f0986177f7916 100644 (file)
--- a/folly/MPMCQueue.h
+++ b/folly/MPMCQueue.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 Facebook, Inc.
+ * Copyright 2014 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,11 +20,8 @@
 #include <atomic>
 #include <assert.h>
 #include <boost/noncopyable.hpp>
-#include <errno.h>
 #include <limits>
-#include <linux/futex.h>
 #include <string.h>
-#include <sys/syscall.h>
 #include <type_traits>
 #include <unistd.h>
 
@@ -661,7 +658,7 @@ struct TurnSequencer {
 
       if (prevThresh == 0) {
         // bootstrap
-        spinCutoff = target;
+        spinCutoff.store(target);
       } else {
         // try once, keep moving if CAS fails.  Exponential moving average
         // with alpha of 7/8