1*4bdff4beSrobert // -*- C++ -*- 2*4bdff4beSrobert //===----------------------------------------------------------------------===// 3*4bdff4beSrobert // 4*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information. 6*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7*4bdff4beSrobert // 8*4bdff4beSrobert //===----------------------------------------------------------------------===// 9*4bdff4beSrobert 10*4bdff4beSrobert #ifndef _LIBCPP___CHRONO_STEADY_CLOCK_H 11*4bdff4beSrobert #define _LIBCPP___CHRONO_STEADY_CLOCK_H 12*4bdff4beSrobert 13*4bdff4beSrobert #include <__chrono/duration.h> 14*4bdff4beSrobert #include <__chrono/time_point.h> 15*4bdff4beSrobert #include <__config> 16*4bdff4beSrobert 17*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 18*4bdff4beSrobert # pragma GCC system_header 19*4bdff4beSrobert #endif 20*4bdff4beSrobert 21*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD 22*4bdff4beSrobert 23*4bdff4beSrobert namespace chrono 24*4bdff4beSrobert { 25*4bdff4beSrobert 26*4bdff4beSrobert #ifndef _LIBCPP_HAS_NO_MONOTONIC_CLOCK 27*4bdff4beSrobert class _LIBCPP_TYPE_VIS steady_clock 28*4bdff4beSrobert { 29*4bdff4beSrobert public: 30*4bdff4beSrobert typedef nanoseconds duration; 31*4bdff4beSrobert typedef duration::rep rep; 32*4bdff4beSrobert typedef duration::period period; 33*4bdff4beSrobert typedef chrono::time_point<steady_clock, duration> time_point; 34*4bdff4beSrobert static _LIBCPP_CONSTEXPR_SINCE_CXX14 const bool is_steady = true; 35*4bdff4beSrobert 36*4bdff4beSrobert static time_point now() _NOEXCEPT; 37*4bdff4beSrobert }; 38*4bdff4beSrobert #endif 39*4bdff4beSrobert 40*4bdff4beSrobert } // namespace chrono 41*4bdff4beSrobert 42*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD 43*4bdff4beSrobert 44*4bdff4beSrobert #endif // _LIBCPP___CHRONO_STEADY_CLOCK_H 45