add LockTraits

[folly.git] / folly / ConcurrentSkipList-inl.h

diff --git a/folly/ConcurrentSkipList-inl.h b/folly/ConcurrentSkipList-inl.h
index 232baff059b410eb4ac7b582efb3ea101419afdd..e4144bcbfb57dfaa035ace57a2f163ac62f4dbcf 100644 (file)
--- a/folly/ConcurrentSkipList-inl.h
+++ b/folly/ConcurrentSkipList-inl.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 Facebook, Inc.
+ * Copyright 2016 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,8 +16,7 @@
 
 // @author: Xin Liu <xliux@fb.com>
 
-#ifndef FOLLY_CONCURRENTSKIPLIST_INL_H_
-#define FOLLY_CONCURRENTSKIPLIST_INL_H_
+#pragma once
 
 #include <algorithm>
 #include <atomic>
@@ -33,7 +32,7 @@
 #include <glog/logging.h>
 
 #include <folly/Memory.h>
-#include <folly/SmallLocks.h>
+#include <folly/MicroSpinLock.h>
 #include <folly/ThreadLocal.h>
 
 namespace folly { namespace detail {
@@ -73,7 +72,7 @@ class SkipListNode : private boost::noncopyable {
   template<typename NodeAlloc>
   static constexpr bool destroyIsNoOp() {
     return IsArenaAllocator<NodeAlloc>::value &&
-           boost::has_trivial_destructor<std::atomic<SkipListNode*>>::value;
+           boost::has_trivial_destructor<SkipListNode>::value;
   }
 
   // copy the head node to a new head node assuming lock acquired
@@ -236,6 +235,8 @@ class NodeRecycler<NodeType, NodeAlloc, typename std::enable_if<
   explicit NodeRecycler(const NodeAlloc& alloc)
     : refs_(0), dirty_(false), alloc_(alloc) { lock_.init(); }
 
+  explicit NodeRecycler() : refs_(0), dirty_(false) { lock_.init(); }
+
   ~NodeRecycler() {
     CHECK_EQ(refs(), 0);
     if (nodes_) {
@@ -322,7 +323,7 @@ class NodeRecycler<NodeType, NodeAlloc, typename std::enable_if<
   void addRef() { }
   void releaseRef() { }
 
-  void add(NodeType* node) { }
+  void add(NodeType* /* node */) {}
 
   NodeAlloc& alloc() { return alloc_; }
 
@@ -331,5 +332,3 @@ class NodeRecycler<NodeType, NodeAlloc, typename std::enable_if<
 };
 
 }}  // namespaces
-
-#endif  // FOLLY_CONCURRENTSKIPLIST_INL_H_