1 files changed, 97 insertions, 0 deletions
diff --git a/client/asmjit/core/cpuinfo.cpp b/client/asmjit/core/cpuinfo.cpp
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+++ b/client/asmjit/core/cpuinfo.cpp
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+// AsmJit - Machine code generation for C++
+//
+//  * Official AsmJit Home Page: https://asmjit.com
+//  * Official Github Repository: https://github.com/asmjit/asmjit
+//
+// Copyright (c) 2008-2020 The AsmJit Authors
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would be
+//    appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+#include "../core/api-build_p.h"
+#include "../core/cpuinfo.h"
+
+#if !defined(_WIN32)
+  #include <errno.h>
+  #include <sys/utsname.h>
+  #include <unistd.h>
+#endif
+
+ASMJIT_BEGIN_NAMESPACE
+
+// ============================================================================
+// [asmjit::CpuInfo - Detect - CPU NumThreads]
+// ============================================================================
+
+#if defined(_WIN32)
+static inline uint32_t detectHWThreadCount() noexcept {
+  SYSTEM_INFO info;
+  ::GetSystemInfo(&info);
+  return info.dwNumberOfProcessors;
+}
+#elif defined(_SC_NPROCESSORS_ONLN)
+static inline uint32_t detectHWThreadCount() noexcept {
+  long res = ::sysconf(_SC_NPROCESSORS_ONLN);
+  return res <= 0 ? uint32_t(1) : uint32_t(res);
+}
+#else
+static inline uint32_t detectHWThreadCount() noexcept {
+  return 1;
+}
+#endif
+
+// ============================================================================
+// [asmjit::CpuInfo - Detect - CPU Features]
+// ============================================================================
+
+#if defined(ASMJIT_BUILD_X86) && ASMJIT_ARCH_X86
+namespace x86 { void detectCpu(CpuInfo& cpu) noexcept; }
+#endif
+
+#if defined(ASMJIT_BUILD_ARM) && ASMJIT_ARCH_ARM
+namespace arm { void detectCpu(CpuInfo& cpu) noexcept; }
+#endif
+
+// ============================================================================
+// [asmjit::CpuInfo - Detect - Static Initializer]
+// ============================================================================
+
+static uint32_t cpuInfoInitialized;
+static CpuInfo cpuInfoGlobal(Globals::NoInit);
+
+const CpuInfo& CpuInfo::host() noexcept {
+  // This should never cause a problem as the resulting information should
+  // always be the same.
+  if (!cpuInfoInitialized) {
+    CpuInfo cpuInfoLocal;
+
+#if defined(ASMJIT_BUILD_X86) && ASMJIT_ARCH_X86
+    x86::detectCpu(cpuInfoLocal);
+#endif
+
+#if defined(ASMJIT_BUILD_ARM) && ASMJIT_ARCH_ARM
+    arm::detectCpu(cpuInfoLocal);
+#endif
+
+    cpuInfoLocal._hwThreadCount = detectHWThreadCount();
+    cpuInfoGlobal = cpuInfoLocal;
+    cpuInfoInitialized = 1;
+  }
+
+  return cpuInfoGlobal;
+}
+
+ASMJIT_END_NAMESPACE