utf16.push_back(0);
utf16.pop_back();
- return success;
+ return error_code::success();
}
error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
utf8.push_back(0);
utf8.pop_back();
- return success;
+ return error_code::success();
}
error_code TempDir(SmallVectorImpl<wchar_t> &result) {
}
result.set_size(len);
- return success;
+ return error_code::success();
}
bool is_separator(const wchar_t value) {
if (len == 0)
return windows_error(::GetLastError());
- return success;
+ return error_code::success();
}
error_code copy_file(const Twine &from, const Twine &to, copy_option copt) {
if (res == 0)
return windows_error(::GetLastError());
- return success;
+ return error_code::success();
}
error_code create_directory(const Twine &path, bool &existed) {
} else
existed = false;
- return success;
+ return error_code::success();
}
error_code create_hard_link(const Twine &to, const Twine &from) {
if (!::CreateHardLinkW(wide_from.begin(), wide_to.begin(), NULL))
return windows_error(::GetLastError());
- return success;
+ return error_code::success();
}
error_code create_symlink(const Twine &to, const Twine &from) {
if (!create_symbolic_link_api(wide_from.begin(), wide_to.begin(), 0))
return windows_error(::GetLastError());
- return success;
+ return error_code::success();
}
error_code remove(const Twine &path, bool &existed) {
existed = true;
}
- return success;
+ return error_code::success();
}
error_code rename(const Twine &from, const Twine &to) {
MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING))
return windows_error(::GetLastError());
- return success;
+ return error_code::success();
}
error_code resize_file(const Twine &path, uint64_t size) {
result = false;
} else
result = true;
- return success;
+ return error_code::success();
}
-error_code equivalent(const Twine &A, const Twine &B, bool &result) {
- // Get arguments.
- SmallString<128> a_storage;
- SmallString<128> b_storage;
- StringRef a = A.toStringRef(a_storage);
- StringRef b = B.toStringRef(b_storage);
-
- // Convert to utf-16.
- SmallVector<wchar_t, 128> wide_a;
- SmallVector<wchar_t, 128> wide_b;
- if (error_code ec = UTF8ToUTF16(a, wide_a)) return ec;
- if (error_code ec = UTF8ToUTF16(b, wide_b)) return ec;
-
- ScopedFileHandle HandleB(
- ::CreateFileW(wide_b.begin(),
- 0,
- FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
- 0,
- OPEN_EXISTING,
- FILE_FLAG_BACKUP_SEMANTICS,
- 0));
-
- ScopedFileHandle HandleA(
- ::CreateFileW(wide_a.begin(),
- 0,
- FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
- 0,
- OPEN_EXISTING,
- FILE_FLAG_BACKUP_SEMANTICS,
- 0));
-
- // If both handles are invalid, it's an error.
- if (!HandleA && !HandleB)
- return windows_error(::GetLastError());
-
- // If only one is invalid, it's false.
- if (!HandleA || !HandleB) {
- result = false;
- return success;
- }
-
- // Get file information.
- BY_HANDLE_FILE_INFORMATION InfoA, InfoB;
- if (!::GetFileInformationByHandle(HandleA, &InfoA))
- return windows_error(::GetLastError());
- if (!::GetFileInformationByHandle(HandleB, &InfoB))
- return windows_error(::GetLastError());
+bool equivalent(file_status A, file_status B) {
+ assert(status_known(A) && status_known(B));
+ return A.FileIndexHigh == B.FileIndexHigh &&
+ A.FileIndexLow == B.FileIndexLow &&
+ A.FileSizeHigh == B.FileSizeHigh &&
+ A.FileSizeLow == B.FileSizeLow &&
+ A.LastWriteTimeHigh == B.LastWriteTimeHigh &&
+ A.LastWriteTimeLow == B.LastWriteTimeLow &&
+ A.VolumeSerialNumber == B.VolumeSerialNumber;
+}
- // See if it's all the same.
- result =
- InfoA.dwVolumeSerialNumber == InfoB.dwVolumeSerialNumber &&
- InfoA.nFileIndexHigh == InfoB.nFileIndexHigh &&
- InfoA.nFileIndexLow == InfoB.nFileIndexLow &&
- InfoA.nFileSizeHigh == InfoB.nFileSizeHigh &&
- InfoA.nFileSizeLow == InfoB.nFileSizeLow &&
- InfoA.ftLastWriteTime.dwLowDateTime ==
- InfoB.ftLastWriteTime.dwLowDateTime &&
- InfoA.ftLastWriteTime.dwHighDateTime ==
- InfoB.ftLastWriteTime.dwHighDateTime;
-
- return success;
+error_code equivalent(const Twine &A, const Twine &B, bool &result) {
+ file_status fsA, fsB;
+ if (error_code ec = status(A, fsA)) return ec;
+ if (error_code ec = status(B, fsB)) return ec;
+ result = equivalent(fsA, fsB);
+ return error_code::success();
}
error_code file_size(const Twine &path, uint64_t &result) {
(uint64_t(FileData.nFileSizeHigh) << (sizeof(FileData.nFileSizeLow) * 8))
+ FileData.nFileSizeLow;
- return success;
+ return error_code::success();
}
static bool isReservedName(StringRef path) {
StringRef path8 = path.toStringRef(path_storage);
if (isReservedName(path8)) {
result = file_status(file_type::character_file);
- return success;
+ return error_code::success();
}
- if (error_code ec = UTF8ToUTF16(path8,
- path_utf16))
+ if (error_code ec = UTF8ToUTF16(path8, path_utf16))
return ec;
DWORD attr = ::GetFileAttributesW(path_utf16.begin());
if (attr & FILE_ATTRIBUTE_DIRECTORY)
result = file_status(file_type::directory_file);
- else
+ else {
result = file_status(file_type::regular_file);
+ ScopedFileHandle h(
+ ::CreateFileW(path_utf16.begin(),
+ 0, // Attributes only.
+ FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL,
+ OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS,
+ 0));
+ if (!h)
+ goto handle_status_error;
+ BY_HANDLE_FILE_INFORMATION Info;
+ if (!::GetFileInformationByHandle(h, &Info))
+ goto handle_status_error;
+ result.FileIndexHigh = Info.nFileIndexHigh;
+ result.FileIndexLow = Info.nFileIndexLow;
+ result.FileSizeHigh = Info.nFileSizeHigh;
+ result.FileSizeLow = Info.nFileSizeLow;
+ result.LastWriteTimeHigh = Info.ftLastWriteTime.dwHighDateTime;
+ result.LastWriteTimeLow = Info.ftLastWriteTime.dwLowDateTime;
+ result.VolumeSerialNumber = Info.dwVolumeSerialNumber;
+ }
- return success;
+ return error_code::success();
handle_status_error:
error_code ec = windows_error(::GetLastError());
return ec;
}
- return success;
+ return error_code::success();
}
error_code unique_file(const Twine &model, int &result_fd,
}
result_fd = fd;
- return success;
+ return error_code::success();
}
error_code get_magic(const Twine &path, uint32_t len,
}
result.set_size(len);
- return success;
+ return error_code::success();
}
error_code detail::directory_iterator_construct(detail::DirIterState &it,
path::append(directory_entry_path, directory_entry_name_utf8.str());
it.CurrentEntry = directory_entry(directory_entry_path.str());
- return success;
+ return error_code::success();
}
error_code detail::directory_iterator_destruct(detail::DirIterState &it) {
ScopedFindHandle close(HANDLE(it.IterationHandle));
it.IterationHandle = 0;
it.CurrentEntry = directory_entry();
- return success;
+ return error_code::success();
}
error_code detail::directory_iterator_increment(detail::DirIterState &it) {
return ec;
it.CurrentEntry.replace_filename(Twine(directory_entry_path_utf8));
- return success;
+ return error_code::success();
}
} // end namespace fs
projects / oota-llvm.git / blobdiff