logging: add a LogConfig::update() method

[folly.git] / folly / MicroLock.cpp

diff --git a/folly/MicroLock.cpp b/folly/MicroLock.cpp
index dd649da1b431e9a25c027c98838e78691eb62a55..e42bd6dd3d3b8d495091152746d7cb8ac3b4a31f 100644 (file)
--- a/folly/MicroLock.cpp
+++ b/folly/MicroLock.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Facebook, Inc.
+ * Copyright 2017 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,6 +17,8 @@
 #include <folly/MicroLock.h>
 #include <thread>
 
+#include <folly/portability/Asm.h>
+
 namespace folly {
 
 void MicroLockCore::lockSlowPath(uint32_t oldWord,
@@ -24,7 +26,7 @@ void MicroLockCore::lockSlowPath(uint32_t oldWord,
                                  uint32_t slotHeldBit,
                                  unsigned maxSpins,
                                  unsigned maxYields) {
-  unsigned newWord;
+  uint32_t newWord;
   unsigned spins = 0;
   uint32_t slotWaitBit = slotHeldBit << 1;
 
@@ -49,7 +51,7 @@ retry:
       // sched_yield(), but more portable
       std::this_thread::yield();
     } else {
-      folly::asm_pause();
+      folly::asm_volatile_pause();
     }
     oldWord = wordPtr->load(std::memory_order_relaxed);
     goto retry;
@@ -63,4 +65,4 @@ retry:
     goto retry;
   }
 }
-}
+} // namespace folly