intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 58 insertions, 0 deletions

diff --git a/util/system/tls_ut.cpp b/util/system/tls_ut.cpp
new file mode 100644
index 0000000000..e84d34b42a
--- /dev/null
+++ b/util/system/tls_ut.cpp
@@ -0,0 +1,58 @@
+#include "tls.h"
+#include "thread.h"
+
+#include <library/cpp/testing/unittest/registar.h>
+
+Y_UNIT_TEST_SUITE(TTestTLS) {
+    struct X {
+        inline X()
+            : V(0)
+        {
+        }
+
+        inline void Do() {
+            ++TlsRef(V);
+        }
+
+        inline int Get() {
+            return TlsRef(V);
+        }
+
+        Y_THREAD(int)
+        V;
+    };
+
+    Y_UNIT_TEST(TestHugeSetup) {
+        TArrayHolder<X> x(new X[100000]);
+
+        struct TThr: public ISimpleThread {
+            inline TThr(X* ptr)
+                : P(ptr)
+            {
+            }
+
+            void* ThreadProc() noexcept override {
+                for (size_t i = 0; i < 100000; ++i) {
+                    P[i].Do();
+                }
+
+                return nullptr;
+            }
+
+            X* P;
+        };
+
+        TThr thr1(x.Get());
+        TThr thr2(x.Get());
+
+        thr1.Start();
+        thr2.Start();
+
+        thr1.Join();
+        thr2.Join();
+
+        for (size_t i = 0; i < 100000; ++i) {
+            UNIT_ASSERT_VALUES_EQUAL(x.Get()[i].Get(), 0);
+        }
+    }
+}