| // -*- 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_FILE_CLOCK_H |
| #define _LIBCPP___CHRONO_FILE_CLOCK_H |
| |
| #include <__availability> |
| #include <__chrono/duration.h> |
| #include <__chrono/system_clock.h> |
| #include <__chrono/time_point.h> |
| #include <__config> |
| #include <ratio> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM |
| struct _FilesystemClock; |
| _LIBCPP_END_NAMESPACE_FILESYSTEM |
| #endif // !_LIBCPP_CXX03_LANG |
| |
| #if _LIBCPP_STD_VER > 17 |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace chrono |
| { |
| |
| // [time.clock.file], type file_clock |
| using file_clock = _VSTD_FS::_FilesystemClock; |
| |
| template<class _Duration> |
| using file_time = time_point<file_clock, _Duration>; |
| |
| } // namespace chrono |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_STD_VER > 17 |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM |
| struct _FilesystemClock { |
| #if !defined(_LIBCPP_HAS_NO_INT128) |
| typedef __int128_t rep; |
| typedef nano period; |
| #else |
| typedef long long rep; |
| typedef nano period; |
| #endif |
| |
| typedef chrono::duration<rep, period> duration; |
| typedef chrono::time_point<_FilesystemClock> time_point; |
| |
| _LIBCPP_EXPORTED_FROM_ABI |
| static _LIBCPP_CONSTEXPR_SINCE_CXX14 const bool is_steady = false; |
| |
| _LIBCPP_AVAILABILITY_FILESYSTEM _LIBCPP_FUNC_VIS static time_point now() noexcept; |
| |
| #if _LIBCPP_STD_VER > 17 |
| template <class _Duration> |
| _LIBCPP_HIDE_FROM_ABI |
| static chrono::sys_time<_Duration> to_sys(const chrono::file_time<_Duration>& __t) { |
| return chrono::sys_time<_Duration>(__t.time_since_epoch()); |
| } |
| |
| template <class _Duration> |
| _LIBCPP_HIDE_FROM_ABI |
| static chrono::file_time<_Duration> from_sys(const chrono::sys_time<_Duration>& __t) { |
| return chrono::file_time<_Duration>(__t.time_since_epoch()); |
| } |
| #endif // _LIBCPP_STD_VER > 17 |
| }; |
| _LIBCPP_END_NAMESPACE_FILESYSTEM |
| #endif // !_LIBCPP_CXX03_LANG |
| |
| #endif // _LIBCPP___CHRONO_FILE_CLOCK_H |