12 #include <sys/utsname.h>
24 FILE *
fopen(
const fs::path& p,
const char *mode)
29 std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,
wchar_t> utf8_cvt;
30 return ::_wfopen(p.wstring().c_str(), utf8_cvt.from_bytes(mode).c_str());
34 fs::path
AbsPathJoin(
const fs::path& base,
const fs::path& path)
36 assert(base.is_absolute());
37 return fs::absolute(path, base);
44 return std::strerror(errno);
49 fd = open(file.string().c_str(), O_RDWR);
64 struct utsname uname_data;
65 return uname(&uname_data) == 0 && std::string(uname_data.version).find(
"Microsoft") != std::string::npos;
76 static const bool is_wsl =
IsWSL();
78 if (flock(
fd, LOCK_EX | LOCK_NB) == -1) {
84 lock.l_type = F_WRLCK;
85 lock.l_whence = SEEK_SET;
88 if (fcntl(
fd, F_SETLK, &lock) == -1) {
100 FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
101 nullptr, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
reinterpret_cast<WCHAR*
>(&err), 0,
nullptr);
102 std::wstring err_str(err);
104 return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>>().to_bytes(err_str);
109 hFile = CreateFileW(file.wstring().c_str(), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
110 nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
nullptr);
111 if (hFile == INVALID_HANDLE_VALUE) {
118 if (hFile != INVALID_HANDLE_VALUE) {
125 if (hFile == INVALID_HANDLE_VALUE) {
128 _OVERLAPPED overlapped = {0};
129 if (!LockFileEx(hFile, LOCKFILE_EXCLUSIVE_LOCK | LOCKFILE_FAIL_IMMEDIATELY, 0, std::numeric_limits<DWORD>::max(), std::numeric_limits<DWORD>::max(), &overlapped)) {
143 std::string mb_string(e.what());
144 int size = MultiByteToWideChar(CP_ACP, 0, mb_string.data(), mb_string.size(),
nullptr, 0);
146 std::wstring utf16_string(size, L
'\0');
147 MultiByteToWideChar(CP_ACP, 0, mb_string.data(), mb_string.size(), &*utf16_string.begin(), size);
149 return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,
wchar_t>().to_bytes(utf16_string);
158 static std::string openmodeToStr(std::ios_base::openmode mode)
160 switch (mode & ~std::ios_base::ate) {
161 case std::ios_base::out:
162 case std::ios_base::out | std::ios_base::trunc:
164 case std::ios_base::out | std::ios_base::app:
165 case std::ios_base::app:
167 case std::ios_base::in:
169 case std::ios_base::in | std::ios_base::out:
171 case std::ios_base::in | std::ios_base::out | std::ios_base::trunc:
173 case std::ios_base::in | std::ios_base::out | std::ios_base::app:
174 case std::ios_base::in | std::ios_base::app:
176 case std::ios_base::out | std::ios_base::binary:
177 case std::ios_base::out | std::ios_base::trunc | std::ios_base::binary:
179 case std::ios_base::out | std::ios_base::app | std::ios_base::binary:
180 case std::ios_base::app | std::ios_base::binary:
182 case std::ios_base::in | std::ios_base::binary:
184 case std::ios_base::in | std::ios_base::out | std::ios_base::binary:
186 case std::ios_base::in | std::ios_base::out | std::ios_base::trunc | std::ios_base::binary:
188 case std::ios_base::in | std::ios_base::out | std::ios_base::app | std::ios_base::binary:
189 case std::ios_base::in | std::ios_base::app | std::ios_base::binary:
192 return std::string();
196 void ifstream::open(
const fs::path& p, std::ios_base::openmode mode)
199 mode |= std::ios_base::in;
201 if (m_file ==
nullptr) {
204 m_filebuf = __gnu_cxx::stdio_filebuf<char>(m_file, mode);
206 if (mode & std::ios_base::ate) {
207 seekg(0, std::ios_base::end);
211 void ifstream::close()
213 if (m_file !=
nullptr) {
220 void ofstream::open(
const fs::path& p, std::ios_base::openmode mode)
223 mode |= std::ios_base::out;
225 if (m_file ==
nullptr) {
228 m_filebuf = __gnu_cxx::stdio_filebuf<char>(m_file, mode);
230 if (mode & std::ios_base::ate) {
231 seekp(0, std::ios_base::end);
235 void ofstream::close()
237 if (m_file !=
nullptr) {
245 static_assert(
sizeof(*fs::path().BOOST_FILESYSTEM_C_STR) ==
sizeof(
wchar_t),
246 "Warning: This build is using boost::filesystem ofstream and ifstream "
247 "implementations which will fail to open paths containing multibyte "
248 "characters. You should delete this static_assert to ignore this warning, "
249 "or switch to a different C++ standard library like the Microsoft C++ "
250 "Standard Library (where boost uses non-standard extensions to construct "
251 "stream objects with wide filenames), or the GNU libstdc++ library (where "
252 "a more complicated workaround has been implemented above).");
254 #endif // __GLIBCXX__