#include <folly/AtomicUnorderedMap.h>
-#include <semaphore.h>
#include <thread>
#include <unordered_map>
#include <folly/Benchmark.h>
#include <folly/portability/GFlags.h>
#include <folly/portability/GTest.h>
+#include <folly/portability/Semaphore.h>
#include <folly/test/DeterministicSchedule.h>
using namespace folly;