IGNIETFERRO-1922 Move atomics from util to library/cpp/deprecated

ref:0c3b0edd3284567c45ec77e57166274f3cfed8c7

1 files changed, 49 insertions, 1 deletions

diff --git a/library/cpp/deprecated/atomic/atomic.h b/library/cpp/deprecated/atomic/atomic.h
index d104ff834d..b376f34efa 100644
--- a/library/cpp/deprecated/atomic/atomic.h
+++ b/library/cpp/deprecated/atomic/atomic.h
@@ -1,3 +1,51 @@
 #pragma once
 
-#include <util/system/atomic.h>
+#include <util/system/defaults.h>
+
+using TAtomicBase = intptr_t;
+using TAtomic = volatile TAtomicBase;
+
+#if defined(__GNUC__)
+    #include "atomic_gcc.h"
+#elif defined(_MSC_VER)
+    #include "atomic_win.h"
+#else
+    #error unsupported platform
+#endif
+
+#if !defined(ATOMIC_COMPILER_BARRIER)
+    #define ATOMIC_COMPILER_BARRIER()
+#endif
+
+static inline TAtomicBase AtomicSub(TAtomic& a, TAtomicBase v) {
+    return AtomicAdd(a, -v);
+}
+
+static inline TAtomicBase AtomicGetAndSub(TAtomic& a, TAtomicBase v) {
+    return AtomicGetAndAdd(a, -v);
+}
+
+#if defined(USE_GENERIC_SETGET)
+static inline TAtomicBase AtomicGet(const TAtomic& a) {
+    return a;
+}
+
+static inline void AtomicSet(TAtomic& a, TAtomicBase v) {
+    a = v;
+}
+#endif
+
+static inline bool AtomicTryLock(TAtomic* a) {
+    return AtomicCas(a, 1, 0);
+}
+
+static inline bool AtomicTryAndTryLock(TAtomic* a) {
+    return (AtomicGet(*a) == 0) && AtomicTryLock(a);
+}
+
+static inline void AtomicUnlock(TAtomic* a) {
+    ATOMIC_COMPILER_BARRIER();
+    AtomicSet(*a, 0);
+}
+
+#include "atomic_ops.h"