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55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
#ifndef NETGEN_CORE_UTILS_HPP
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#define NETGEN_CORE_UTILS_HPP
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#include <chrono>
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#include <sstream>
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#include <string>
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#include <x86intrin.h> // for __rdtsc() CPU time step counter
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#include "ngcore_api.hpp" // for NGCORE_API
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namespace ngcore
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{
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NGCORE_API std::string Demangle(const char* typeinfo);
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#if defined(__GNUC__)
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inline bool likely (bool x) { return bool(__builtin_expect(long(x), 1L)); }
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inline bool unlikely (bool x) { return bool(__builtin_expect(long(x), 0L)); }
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#else
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inline bool likely (bool x) { return x; }
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inline bool unlikely (bool x) { return x; }
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#endif
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using TClock = std::chrono::system_clock;
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extern NGCORE_API const std::chrono::time_point<TClock> wall_time_start;
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// Time in seconds since program start
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inline double WallTime () noexcept
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{
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std::chrono::time_point<TClock> now = TClock::now();
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std::chrono::duration<double> elapsed_seconds = now-wall_time_start;
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return elapsed_seconds.count();
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}
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// High precision clock counter register
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using TTimePoint = size_t;
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extern NGCORE_API double ticks_per_second;
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inline TTimePoint GetTimeCounter() noexcept
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{
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return TTimePoint(__rdtsc());
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}
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template <class T>
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inline std::string ToString (const T& t)
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{
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std::stringstream ss;
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ss << t;
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return ss.str();
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}
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} // namespace ngcore
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#endif // NETGEN_CORE_UTILS_HPP
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