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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmFileTimes.h"
#include <utility>
#include <cm/memory>
#include "cmsys/Status.hxx"
#include "cm_sys_stat.h"
#if defined(_WIN32)
# include <windows.h>
# include "cmSystemTools.h"
#else
# include <cerrno>
# include <utime.h>
#endif
#if defined(_WIN32) && \
(defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__))
# include <io.h>
#endif
#ifdef _WIN32
class cmFileTimes::WindowsHandle
{
public:
WindowsHandle(HANDLE h)
: handle_(h)
{
}
~WindowsHandle()
{
if (this->handle_ != INVALID_HANDLE_VALUE) {
CloseHandle(this->handle_);
}
}
explicit operator bool() const
{
return this->handle_ != INVALID_HANDLE_VALUE;
}
bool operator!() const { return this->handle_ == INVALID_HANDLE_VALUE; }
operator HANDLE() const { return this->handle_; }
private:
HANDLE handle_;
};
#endif
class cmFileTimes::Times
{
public:
#if defined(_WIN32) && !defined(__CYGWIN__)
FILETIME timeCreation;
FILETIME timeLastAccess;
FILETIME timeLastWrite;
#else
struct utimbuf timeBuf;
#endif
};
cmFileTimes::cmFileTimes() = default;
cmFileTimes::cmFileTimes(std::string const& fileName)
{
this->Load(fileName);
}
cmFileTimes::~cmFileTimes() = default;
cmsys::Status cmFileTimes::Load(std::string const& fileName)
{
std::unique_ptr<Times> ptr;
if (this->IsValid()) {
// Invalidate this and reuse times
ptr.swap(this->times);
} else {
ptr = cm::make_unique<Times>();
}
#if defined(_WIN32) && !defined(__CYGWIN__)
cmFileTimes::WindowsHandle handle =
CreateFileW(cmSystemTools::ConvertToWindowsExtendedPath(fileName).c_str(),
GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, 0);
if (!handle) {
return cmsys::Status::Windows_GetLastError();
}
if (!GetFileTime(handle, &ptr->timeCreation, &ptr->timeLastAccess,
&ptr->timeLastWrite)) {
return cmsys::Status::Windows_GetLastError();
}
#else
struct stat st;
if (stat(fileName.c_str(), &st) < 0) {
return cmsys::Status::POSIX_errno();
}
ptr->timeBuf.actime = st.st_atime;
ptr->timeBuf.modtime = st.st_mtime;
#endif
// Accept times
this->times = std::move(ptr);
return cmsys::Status::Success();
}
cmsys::Status cmFileTimes::Store(std::string const& fileName) const
{
if (!this->IsValid()) {
return cmsys::Status::POSIX(EINVAL);
}
#if defined(_WIN32) && !defined(__CYGWIN__)
cmFileTimes::WindowsHandle handle = CreateFileW(
cmSystemTools::ConvertToWindowsExtendedPath(fileName).c_str(),
FILE_WRITE_ATTRIBUTES, 0, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);
if (!handle) {
return cmsys::Status::Windows_GetLastError();
}
if (SetFileTime(handle, &this->times->timeCreation,
&this->times->timeLastAccess,
&this->times->timeLastWrite) == 0) {
return cmsys::Status::Windows_GetLastError();
}
#else
if (utime(fileName.c_str(), &this->times->timeBuf) < 0) {
return cmsys::Status::POSIX_errno();
}
#endif
return cmsys::Status::Success();
}
cmsys::Status cmFileTimes::Copy(std::string const& fromFile,
std::string const& toFile)
{
cmFileTimes fileTimes;
cmsys::Status load_status = fileTimes.Load(fromFile);
if (!load_status) {
return load_status;
}
return fileTimes.Store(toFile);
}
|
