using llvm::sys::windows::UTF16ToUTF8;
using llvm::sys::path::widenPath;
-static std::error_code windows_error(DWORD E) {
- return mapWindowsError(E);
-}
-
static bool is_separator(const wchar_t value) {
switch (value) {
case L'\\':
else {
CurPathLen = ::GetCurrentDirectoryW(0, NULL);
if (CurPathLen == 0)
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
}
// Would the absolute path be longer than our limit?
// A zero return value indicates a failure other than insufficient space.
if (len == 0)
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
// If there's insufficient space, the len returned is larger than the len
// given.
return UTF16ToUTF8(cur_path.begin(), cur_path.size(), result);
}
-std::error_code create_directory(const Twine &path, bool IgnoreExisting) {
+std::error_code create_directory(const Twine &path, bool IgnoreExisting,
+ perms Perms) {
SmallVector<wchar_t, 128> path_utf16;
if (std::error_code ec = widenPath(path, path_utf16))
if (!::CreateDirectoryW(path_utf16.begin(), NULL)) {
DWORD LastError = ::GetLastError();
if (LastError != ERROR_ALREADY_EXISTS || !IgnoreExisting)
- return windows_error(LastError);
+ return mapWindowsError(LastError);
}
return std::error_code();
return ec;
if (!::CreateHardLinkW(wide_from.begin(), wide_to.begin(), NULL))
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
return std::error_code();
}
if (ST.type() == file_type::directory_file) {
if (!::RemoveDirectoryW(c_str(path_utf16))) {
- std::error_code EC = windows_error(::GetLastError());
+ std::error_code EC = mapWindowsError(::GetLastError());
if (EC != errc::no_such_file_or_directory || !IgnoreNonExisting)
return EC;
}
return std::error_code();
}
if (!::DeleteFileW(c_str(path_utf16))) {
- std::error_code EC = windows_error(::GetLastError());
+ std::error_code EC = mapWindowsError(::GetLastError());
if (EC != errc::no_such_file_or_directory || !IgnoreNonExisting)
return EC;
}
return ec;
std::error_code ec = std::error_code();
+
+ // Retry while we see ERROR_ACCESS_DENIED.
+ // System scanners (eg. indexer) might open the source file when it is written
+ // and closed.
+
for (int i = 0; i < 2000; i++) {
+ // Try ReplaceFile first, as it is able to associate a new data stream with
+ // the destination even if the destination file is currently open.
+ if (::ReplaceFileW(wide_to.begin(), wide_from.begin(), NULL, 0, NULL, NULL))
+ return std::error_code();
+
+ // We get ERROR_FILE_NOT_FOUND if the destination file is missing.
+ // MoveFileEx can handle this case.
+ DWORD ReplaceError = ::GetLastError();
+ ec = mapWindowsError(ReplaceError);
+ if (ReplaceError != ERROR_ACCESS_DENIED &&
+ ReplaceError != ERROR_FILE_NOT_FOUND &&
+ ReplaceError != ERROR_SHARING_VIOLATION)
+ break;
+
if (::MoveFileExW(wide_from.begin(), wide_to.begin(),
MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING))
return std::error_code();
- DWORD LastError = ::GetLastError();
- if (LastError != ERROR_ACCESS_DENIED)
- break;
- // Retry MoveFile() at ACCESS_DENIED.
- // System scanners (eg. indexer) might open the source file when
- // It is written and closed.
+
+ DWORD MoveError = ::GetLastError();
+ ec = mapWindowsError(MoveError);
+ if (MoveError != ERROR_ACCESS_DENIED) break;
+
::Sleep(1);
}
DWORD LastError = ::GetLastError();
if (LastError != ERROR_FILE_NOT_FOUND &&
LastError != ERROR_PATH_NOT_FOUND)
- return windows_error(LastError);
+ return mapWindowsError(LastError);
return errc::no_such_file_or_directory;
}
return std::error_code();
}
+bool can_execute(const Twine &Path) {
+ return !access(Path, AccessMode::Execute) ||
+ !access(Path + ".exe", AccessMode::Execute);
+}
+
bool equivalent(file_status A, file_status B) {
assert(status_known(A) && status_known(B));
return A.FileIndexHigh == B.FileIndexHigh &&
static bool isReservedName(StringRef path) {
// This list of reserved names comes from MSDN, at:
// http://msdn.microsoft.com/en-us/library/aa365247%28v=vs.85%29.aspx
- static const char *sReservedNames[] = { "nul", "con", "prn", "aux",
- "com1", "com2", "com3", "com4", "com5", "com6",
- "com7", "com8", "com9", "lpt1", "lpt2", "lpt3",
- "lpt4", "lpt5", "lpt6", "lpt7", "lpt8", "lpt9" };
+ static const char *const sReservedNames[] = { "nul", "con", "prn", "aux",
+ "com1", "com2", "com3", "com4",
+ "com5", "com6", "com7", "com8",
+ "com9", "lpt1", "lpt2", "lpt3",
+ "lpt4", "lpt5", "lpt6", "lpt7",
+ "lpt8", "lpt9" };
// First, check to see if this is a device namespace, which always
// starts with \\.\, since device namespaces are not legal file paths.
case FILE_TYPE_UNKNOWN: {
DWORD Err = ::GetLastError();
if (Err != NO_ERROR)
- return windows_error(Err);
+ return mapWindowsError(Err);
Result = file_status(file_type::type_unknown);
return std::error_code();
}
Result = file_status(file_type::type_unknown);
else
Result = file_status(file_type::status_error);
- return windows_error(LastError);
+ return mapWindowsError(LastError);
}
std::error_code status(const Twine &path, file_status &result) {
FT.dwHighDateTime = UI.HighPart;
HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
if (!SetFileTime(FileHandle, NULL, &FT, &FT))
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
return std::error_code();
}
if (Size > std::numeric_limits<SIZE_T>::max())
return make_error_code(errc::invalid_argument);
+ HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
+ if (FileHandle == INVALID_HANDLE_VALUE)
+ return make_error_code(errc::bad_file_descriptor);
+
DWORD flprotect;
switch (Mode) {
case readonly: flprotect = PAGE_READONLY; break;
case priv: flprotect = PAGE_WRITECOPY; break;
}
- FileMappingHandle =
+ HANDLE FileMappingHandle =
::CreateFileMappingW(FileHandle, 0, flprotect,
(Offset + Size) >> 32,
(Offset + Size) & 0xffffffff,
0);
if (FileMappingHandle == NULL) {
- std::error_code ec = windows_error(GetLastError());
+ std::error_code ec = mapWindowsError(GetLastError());
return ec;
}
Offset & 0xffffffff,
Size);
if (Mapping == NULL) {
- std::error_code ec = windows_error(GetLastError());
+ std::error_code ec = mapWindowsError(GetLastError());
::CloseHandle(FileMappingHandle);
return ec;
}
MEMORY_BASIC_INFORMATION mbi;
SIZE_T Result = VirtualQuery(Mapping, &mbi, sizeof(mbi));
if (Result == 0) {
- std::error_code ec = windows_error(GetLastError());
+ std::error_code ec = mapWindowsError(GetLastError());
::UnmapViewOfFile(Mapping);
::CloseHandle(FileMappingHandle);
return ec;
mapped_file_region::mapped_file_region(int fd, mapmode mode, uint64_t length,
uint64_t offset, std::error_code &ec)
- : Size(length), Mapping(),
- FileHandle(INVALID_HANDLE_VALUE), FileMappingHandle() {
- FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(fd));
- if (FileHandle == INVALID_HANDLE_VALUE) {
- ec = make_error_code(errc::bad_file_descriptor);
- return;
- }
-
+ : Size(length), Mapping() {
ec = init(fd, offset, mode);
- if (ec) {
- Mapping = FileMappingHandle = 0;
- FileHandle = INVALID_HANDLE_VALUE;
- }
+ if (ec)
+ Mapping = 0;
}
mapped_file_region::~mapped_file_region() {
WIN32_FIND_DATAW FirstFind;
ScopedFindHandle FindHandle(::FindFirstFileW(c_str(path_utf16), &FirstFind));
if (!FindHandle)
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
size_t FilenameLen = ::wcslen(FirstFind.cFileName);
while ((FilenameLen == 1 && FirstFind.cFileName[0] == L'.') ||
// Check for end.
if (LastError == ERROR_NO_MORE_FILES)
return detail::directory_iterator_destruct(it);
- return windows_error(LastError);
+ return mapWindowsError(LastError);
} else
FilenameLen = ::wcslen(FirstFind.cFileName);
it.IterationHandle = intptr_t(FindHandle.take());
SmallString<128> directory_entry_path(path);
- path::append(directory_entry_path, directory_entry_name_utf8.str());
- it.CurrentEntry = directory_entry(directory_entry_path.str());
+ path::append(directory_entry_path, directory_entry_name_utf8);
+ it.CurrentEntry = directory_entry(directory_entry_path);
return std::error_code();
}
// Check for end.
if (LastError == ERROR_NO_MORE_FILES)
return detail::directory_iterator_destruct(it);
- return windows_error(LastError);
+ return mapWindowsError(LastError);
}
size_t FilenameLen = ::wcslen(FindData.cFileName);
if (std::error_code EC = widenPath(Name, PathUTF16))
return EC;
- HANDLE H = ::CreateFileW(PathUTF16.begin(), GENERIC_READ,
- FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
- OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ HANDLE H =
+ ::CreateFileW(PathUTF16.begin(), GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (H == INVALID_HANDLE_VALUE) {
DWORD LastError = ::GetLastError();
- std::error_code EC = windows_error(LastError);
+ std::error_code EC = mapWindowsError(LastError);
// Provide a better error message when trying to open directories.
// This only runs if we failed to open the file, so there is probably
// no performances issues.
int FD = ::_open_osfhandle(intptr_t(H), 0);
if (FD == -1) {
::CloseHandle(H);
- return windows_error(ERROR_INVALID_HANDLE);
+ return mapWindowsError(ERROR_INVALID_HANDLE);
}
ResultFD = FD;
if (H == INVALID_HANDLE_VALUE) {
DWORD LastError = ::GetLastError();
- std::error_code EC = windows_error(LastError);
+ std::error_code EC = mapWindowsError(LastError);
// Provide a better error message when trying to open directories.
// This only runs if we failed to open the file, so there is probably
// no performances issues.
int FD = ::_open_osfhandle(intptr_t(H), OpenFlags);
if (FD == -1) {
::CloseHandle(H);
- return windows_error(ERROR_INVALID_HANDLE);
+ return mapWindowsError(ERROR_INVALID_HANDLE);
}
ResultFD = FD;
} // end namespace fs
namespace path {
-
-bool home_directory(SmallVectorImpl<char> &result) {
- wchar_t Path[MAX_PATH];
- if (::SHGetFolderPathW(0, CSIDL_APPDATA | CSIDL_FLAG_CREATE, 0,
- /*SHGFP_TYPE_CURRENT*/0, Path) != S_OK)
+static bool getKnownFolderPath(KNOWNFOLDERID folderId,
+ SmallVectorImpl<char> &result) {
+ wchar_t *path = nullptr;
+ if (::SHGetKnownFolderPath(folderId, KF_FLAG_CREATE, nullptr, &path) != S_OK)
return false;
- if (UTF16ToUTF8(Path, ::wcslen(Path), result))
- return false;
+ bool ok = !UTF16ToUTF8(path, ::wcslen(path), result);
+ ::CoTaskMemFree(path);
+ return ok;
+}
- return true;
+bool getUserCacheDir(SmallVectorImpl<char> &Result) {
+ return getKnownFolderPath(FOLDERID_LocalAppData, Result);
+}
+
+bool home_directory(SmallVectorImpl<char> &result) {
+ return getKnownFolderPath(FOLDERID_Profile, result);
}
static bool getTempDirEnvVar(const char *Var, SmallVectorImpl<char> &Res) {
utf8.size(), utf16.begin(), 0);
if (len == 0)
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
utf16.reserve(len + 1);
utf16.set_size(len);
utf8.size(), utf16.begin(), utf16.size());
if (len == 0)
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
}
// Make utf16 null terminated.
0, NULL, NULL);
if (len == 0)
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
utf8.reserve(len);
utf8.set_size(len);
utf8.size(), NULL, NULL);
if (len == 0)
- return windows_error(::GetLastError());
+ return mapWindowsError(::GetLastError());
}
// Make utf8 null terminated.
projects / oota-llvm.git / blobdiff