Update release

Import/VlppOS.cpp

@@ -460,8 +460,59 @@ Licensed under https://github.com/vczh-libraries/License
 ***********************************************************************/
 
 
+#if defined VCZH_ARM
+#elif defined VCZH_MSVC || defined VCZH_GCC
+#include <emmintrin.h>
+#endif
+
 namespace vl
 {
+
+/***********************************************************************
+SpinLock
+***********************************************************************/
+
+	SpinLock::Scope::Scope(SpinLock& _spinLock)
+		:spinLock(&_spinLock)
+	{
+		spinLock->Enter();
+	}
+
+	SpinLock::Scope::~Scope()
+	{
+		spinLock->Leave();
+	}
+
+	bool SpinLock::TryEnter()
+	{
+		return token.exchange(1) == 0;
+	}
+
+	void SpinLock::Enter()
+	{
+		vint expected = 0;
+		while (!token.compare_exchange_strong(expected, 1))
+		{
+			while (token != 0)
+			{
+#ifdef VCZH_ARM
+				__yield();
+#else
+				_mm_pause();
+#endif
+			}
+		}
+	}
+
+	void SpinLock::Leave()
+	{
+		token.exchange(0);
+	}
+
+/***********************************************************************
+ThreadLocalStorage
+***********************************************************************/
+
 	void ThreadLocalStorage::Clear()
 	{
 		CHECK_ERROR(!disposed, L"vl::ThreadLocalStorage::Clear()#Cannot access a disposed ThreadLocalStorage.");