| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___CHRONO_STEADY_CLOCK_H |
| #define _LIBCPP___CHRONO_STEADY_CLOCK_H |
| |
| #include <__chrono/duration.h> |
| #include <__chrono/time_point.h> |
| #include <__config> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace chrono |
| { |
| |
| #ifndef _LIBCPP_HAS_NO_MONOTONIC_CLOCK |
| class _LIBCPP_TYPE_VIS steady_clock |
| { |
| public: |
| typedef nanoseconds duration; |
| typedef duration::rep rep; |
| typedef duration::period period; |
| typedef chrono::time_point<steady_clock, duration> time_point; |
| static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = true; |
| |
| static time_point now() _NOEXCEPT; |
| }; |
| #endif |
| |
| } // namespace chrono |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___CHRONO_STEADY_CLOCK_H |
