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88 lines
2.5 KiB
88 lines
2.5 KiB
4 years ago
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// AsmJit - Machine code generation for C++
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//
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// * Official AsmJit Home Page: https://asmjit.com
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// * Official Github Repository: https://github.com/asmjit/asmjit
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//
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// Copyright (c) 2008-2020 The AsmJit Authors
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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// 3. This notice may not be removed or altered from any source distribution.
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#ifndef ASMJIT_CORE_OSUTILS_H_INCLUDED
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#define ASMJIT_CORE_OSUTILS_H_INCLUDED
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#include "../core/globals.h"
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ASMJIT_BEGIN_NAMESPACE
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//! \addtogroup asmjit_utilities
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//! \{
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// ============================================================================
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// [asmjit::OSUtils]
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// ============================================================================
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//! Operating system utilities.
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namespace OSUtils {
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//! Gets the current CPU tick count, used for benchmarking (1ms resolution).
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ASMJIT_API uint32_t getTickCount() noexcept;
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};
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// ============================================================================
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// [asmjit::Lock]
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// ============================================================================
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//! \cond INTERNAL
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//! Lock.
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//!
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//! Lock is internal, it cannot be used outside of AsmJit, however, its internal
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//! layout is exposed as it's used by some other classes, which are public.
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class Lock {
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public:
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ASMJIT_NONCOPYABLE(Lock)
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#if defined(_WIN32)
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#pragma pack(push, 8)
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struct ASMJIT_MAY_ALIAS Handle {
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void* DebugInfo;
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long LockCount;
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long RecursionCount;
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void* OwningThread;
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void* LockSemaphore;
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unsigned long* SpinCount;
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};
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Handle _handle;
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#pragma pack(pop)
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#elif !defined(__EMSCRIPTEN__)
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typedef pthread_mutex_t Handle;
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Handle _handle;
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#endif
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inline Lock() noexcept;
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inline ~Lock() noexcept;
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inline void lock() noexcept;
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inline void unlock() noexcept;
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};
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//! \endcond
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//! \}
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ASMJIT_END_NAMESPACE
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#endif // ASMJIT_CORE_OSUTILS_H_INCLUDED
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