Add utils_atomic_decrement function

Author: Vinogradov, Sergei

src/utils/utils_concurrency.h

@@ -82,6 +82,8 @@ static __inline unsigned char utils_mssb_index(long long value) {
     InterlockedExchange64((LONG64 volatile *)object, (LONG64)desired)
 #define utils_atomic_increment(object)                                         \
     InterlockedIncrement64((LONG64 volatile *)object)
+#define utils_atomic_decrement(object)                                         \
+    InterlockedDecrement64((LONG64 volatile *)object)
 #define utils_fetch_and_add64(ptr, value)                                      \
     InterlockedExchangeAdd64((LONG64 *)(ptr), value)
 #else
@@ -101,7 +103,10 @@ static __inline unsigned char utils_mssb_index(long long value) {
 
 #define utils_atomic_increment(object)                                         \
     __atomic_add_fetch(object, 1, __ATOMIC_ACQ_REL)
+#define utils_atomic_decrement(object)                                         \
+    __atomic_sub_fetch(object, 1, __ATOMIC_ACQ_REL)
 #define utils_fetch_and_add64 __sync_fetch_and_add
+
 #endif
 
 #ifdef __cplusplus