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80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___CHRONO_FILE_CLOCK_H
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#define _LIBCPP___CHRONO_FILE_CLOCK_H
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#include <__chrono/duration.h>
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#include <__chrono/system_clock.h>
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#include <__chrono/time_point.h>
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#include <__config>
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#include <ratio>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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#ifndef _LIBCPP_CXX03_LANG
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_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
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struct _FilesystemClock;
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_LIBCPP_END_NAMESPACE_FILESYSTEM
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#endif // !_LIBCPP_CXX03_LANG
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#if _LIBCPP_STD_VER >= 20
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace chrono {
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// [time.clock.file], type file_clock
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using file_clock = filesystem::_FilesystemClock;
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template <class _Duration>
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using file_time = time_point<file_clock, _Duration>;
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} // namespace chrono
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER >= 20
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#ifndef _LIBCPP_CXX03_LANG
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_LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
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struct _FilesystemClock {
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# if !defined(_LIBCPP_HAS_NO_INT128)
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typedef __int128_t rep;
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typedef nano period;
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# else
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typedef long long rep;
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typedef nano period;
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# endif
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typedef chrono::duration<rep, period> duration;
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typedef chrono::time_point<_FilesystemClock> time_point;
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_LIBCPP_EXPORTED_FROM_ABI static _LIBCPP_CONSTEXPR_SINCE_CXX14 const bool is_steady = false;
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_LIBCPP_AVAILABILITY_FILESYSTEM_LIBRARY _LIBCPP_EXPORTED_FROM_ABI static time_point now() noexcept;
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# if _LIBCPP_STD_VER >= 20
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template <class _Duration>
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_LIBCPP_HIDE_FROM_ABI static chrono::sys_time<_Duration> to_sys(const chrono::file_time<_Duration>& __t) {
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return chrono::sys_time<_Duration>(__t.time_since_epoch());
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}
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template <class _Duration>
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_LIBCPP_HIDE_FROM_ABI static chrono::file_time<_Duration> from_sys(const chrono::sys_time<_Duration>& __t) {
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return chrono::file_time<_Duration>(__t.time_since_epoch());
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}
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# endif // _LIBCPP_STD_VER >= 20
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};
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_LIBCPP_END_NAMESPACE_FILESYSTEM
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#endif // !_LIBCPP_CXX03_LANG
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#endif // _LIBCPP___CHRONO_FILE_CLOCK_H
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