IGNIETFERRO-1105 Get rid of TAtomic in spin_wait

ref:788357fd9a851f54e97a8e0f133dcb3c3e275f92

1 files changed, 13 insertions, 10 deletions

diff --git a/util/system/spin_wait.cpp b/util/system/spin_wait.cpp
index caac8d5f1f..ba12529111 100644
--- a/util/system/spin_wait.cpp
+++ b/util/system/spin_wait.cpp
@@ -6,17 +6,20 @@
 #include <util/digest/numeric.h>
 #include <util/generic/utility.h>
 
-template <class T>
-static inline T RandomizeSleepTime(T t) noexcept {
-    static TAtomic counter = 0;
-    const T rndNum = IntHash((T)AtomicIncrement(counter));
+#include <atomic>
 
-    return (t * (T)4 + (rndNum % t) * (T)2) / (T)5;
-}
+namespace {
+    unsigned RandomizeSleepTime(unsigned t) noexcept {
+        static std::atomic<unsigned> counter = 0;
+        const unsigned rndNum = IntHash(++counter);
+
+        return (t * 4 + (rndNum % t) * 2) / 5;
+    }
 
-//arbitrary values
-#define MIN_SLEEP_TIME 500
-#define MAX_SPIN_COUNT 0x7FF
+    //arbitrary values
+    constexpr unsigned MIN_SLEEP_TIME = 500;
+    constexpr unsigned MAX_SPIN_COUNT = 0x7FF;
+}
 
 TSpinWait::TSpinWait() noexcept
     : T(MIN_SLEEP_TIME)
@@ -32,7 +35,7 @@ void TSpinWait::Sleep() noexcept {
     } else if ((C & MAX_SPIN_COUNT) == 0) {
         usleep(RandomizeSleepTime(T));
 
-        T = Min<unsigned>((T * 3) / 2, 20000);
+        T = Min<unsigned>(T * 3 / 2, 20000);
     } else {
         SpinLockPause();
     }