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8832f78dd6
`include-what-you-use` diagnostics, in practice, are specific to the environment's compiler and standard library. Update includes to satisfy IWYU for our CI job under Debian 13. Some patterns: * Types named in virtual `override` signatures no longer require includes since the overridden signature already names them. * A function argument's type needs to be included even if its constructor is called only by implicit conversion. For example, constructing a `std::function` from a lambda now requires `<functional>`. * Some prior mysterious `<type_traits>` inclusions are no longer required.
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file LICENSE.rst or https://cmake.org/licensing for details. */
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#include "cmFileTime.h"
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#include <ctime>
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#include <string>
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// Use a platform-specific API to get file times efficiently.
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#if !defined(_WIN32) || defined(__CYGWIN__)
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# include "cm_sys_stat.h"
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#else
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# include <windows.h>
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# include "cmsys/Encoding.hxx"
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#endif
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bool cmFileTime::Load(std::string const& fileName)
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{
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#if !defined(_WIN32) || defined(__CYGWIN__)
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// POSIX version. Use the stat function.
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struct stat fst;
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if (::stat(fileName.c_str(), &fst) != 0) {
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return false;
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}
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# if CMake_STAT_HAS_ST_MTIM
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// Nanosecond resolution
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this->Time = fst.st_mtim.tv_sec * UtPerS + fst.st_mtim.tv_nsec;
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# elif CMake_STAT_HAS_ST_MTIMESPEC
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// Nanosecond resolution
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this->Time = fst.st_mtimespec.tv_sec * UtPerS + fst.st_mtimespec.tv_nsec;
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# else
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// Second resolution
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this->Time = fst.st_mtime * UtPerS;
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# endif
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#else
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// Windows version. Get the modification time from extended file attributes.
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WIN32_FILE_ATTRIBUTE_DATA fdata;
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if (!GetFileAttributesExW(cmsys::Encoding::ToWide(fileName).c_str(),
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GetFileExInfoStandard, &fdata)) {
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return false;
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}
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// Copy the file time to the output location.
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using uint64 = unsigned long long;
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this->Time = static_cast<TimeType>(
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(uint64(fdata.ftLastWriteTime.dwHighDateTime) << 32) +
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fdata.ftLastWriteTime.dwLowDateTime);
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#endif
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return true;
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}
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