368faacac7
This commit reverts 5aaefa51 (and also partly 7f285f48e77 and b6d75682f9, which were related to the original commit). As landed, 5aaefa51 had unintended consequences on some downstream bots and didn't have proper coverage upstream due to a few subtle things. Implementing this is something we should do in libc++, however we'll first need to address a few issues listed in https://reviews.llvm.org/D106124#3349710. Differential Revision: https://reviews.llvm.org/D120683
86 lines
2.2 KiB
C++
86 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 <__availability>
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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 > 17
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace chrono
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{
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// [time.clock.file], type file_clock
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using file_clock = _VSTD_FS::_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 > 17
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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
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static _LIBCPP_CONSTEXPR_AFTER_CXX11 const bool is_steady = false;
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_LIBCPP_AVAILABILITY_FILESYSTEM _LIBCPP_FUNC_VIS static time_point now() noexcept;
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#if _LIBCPP_STD_VER > 17
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template <class _Duration>
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_LIBCPP_HIDE_FROM_ABI
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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
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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 > 17
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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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