blob: 3d103d3785cb66e7029b5826d7edfe48227925ef (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmFileTime.h"
#include <string>
// Use a platform-specific API to get file times efficiently.
#if !defined(_WIN32) || defined(__CYGWIN__)
# include "cm_sys_stat.h"
#else
# include <windows.h>
# include "cmsys/Encoding.hxx"
#endif
bool cmFileTime::Load(std::string const& fileName)
{
#if !defined(_WIN32) || defined(__CYGWIN__)
// POSIX version. Use the stat function.
struct stat fst;
if (::stat(fileName.c_str(), &fst) != 0) {
return false;
}
# if CMake_STAT_HAS_ST_MTIM
// Nanosecond resolution
this->Time = fst.st_mtim.tv_sec * UtPerS + fst.st_mtim.tv_nsec;
# elif CMake_STAT_HAS_ST_MTIMESPEC
// Nanosecond resolution
this->Time = fst.st_mtimespec.tv_sec * UtPerS + fst.st_mtimespec.tv_nsec;
# else
// Second resolution
this->Time = fst.st_mtime * UtPerS;
# endif
#else
// Windows version. Get the modification time from extended file attributes.
WIN32_FILE_ATTRIBUTE_DATA fdata;
if (!GetFileAttributesExW(cmsys::Encoding::ToWide(fileName).c_str(),
GetFileExInfoStandard, &fdata)) {
return false;
}
// Copy the file time to the output location.
using uint64 = unsigned long long;
this->Time = static_cast<TimeType>(
(uint64(fdata.ftLastWriteTime.dwHighDateTime) << 32) +
fdata.ftLastWriteTime.dwLowDateTime);
#endif
return true;
}
|
