整理初版

third_party/asmjit/core/osutils.h

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+// This file is part of AsmJit project <https://asmjit.com>
+//
+// See asmjit.h or LICENSE.md for license and copyright information
+// SPDX-License-Identifier: Zlib
+
+#ifndef ASMJIT_CORE_OSUTILS_H_INCLUDED
+#define ASMJIT_CORE_OSUTILS_H_INCLUDED
+
+#include "../core/globals.h"
+
+ASMJIT_BEGIN_NAMESPACE
+
+//! \addtogroup asmjit_utilities
+//! \{
+
+//! Operating system utilities.
+namespace OSUtils {
+  //! Gets the current CPU tick count, used for benchmarking (1ms resolution).
+  ASMJIT_API uint32_t getTickCount() noexcept;
+};
+
+
+//! \cond INTERNAL
+//! Lock.
+//!
+//! Lock is internal, it cannot be used outside of AsmJit, however, its internal
+//! layout is exposed as it's used by some other classes, which are public.
+class Lock {
+public:
+  ASMJIT_NONCOPYABLE(Lock)
+
+#if defined(_WIN32)
+#pragma pack(push, 8)
+  struct ASMJIT_MAY_ALIAS Handle {
+    void* DebugInfo;
+    long LockCount;
+    long RecursionCount;
+    void* OwningThread;
+    void* LockSemaphore;
+    unsigned long* SpinCount;
+  };
+  Handle _handle;
+#pragma pack(pop)
+#elif !defined(__EMSCRIPTEN__)
+  typedef pthread_mutex_t Handle;
+  Handle _handle;
+#endif
+
+  ASMJIT_FORCE_INLINE Lock() noexcept;
+  ASMJIT_FORCE_INLINE ~Lock() noexcept;
+
+  ASMJIT_FORCE_INLINE void lock() noexcept;
+  ASMJIT_FORCE_INLINE void unlock() noexcept;
+};
+//! \endcond
+
+//! \}
+
+ASMJIT_END_NAMESPACE
+
+#endif // ASMJIT_CORE_OSUTILS_H_INCLUDED