//===----------------------------------------------------------------------===//
#include "llvm/ADT/STLExtras.h"
-#include "Windows.h"
+#include "llvm/Support/WindowsError.h"
#include <fcntl.h>
#include <io.h>
#include <sys/stat.h>
#include <sys/types.h>
+// These two headers must be included last, and make sure shlobj is required
+// after Windows.h to make sure it picks up our definition of _WIN32_WINNT
+#include "WindowsSupport.h"
+#include <shlobj.h>
+
#undef max
// MinGW doesn't define this.
using llvm::sys::windows::UTF8ToUTF16;
using llvm::sys::windows::UTF16ToUTF8;
-namespace {
- typedef BOOLEAN (WINAPI *PtrCreateSymbolicLinkW)(
- /*__in*/ LPCWSTR lpSymlinkFileName,
- /*__in*/ LPCWSTR lpTargetFileName,
- /*__in*/ DWORD dwFlags);
-
- PtrCreateSymbolicLinkW create_symbolic_link_api =
- PtrCreateSymbolicLinkW(::GetProcAddress(
- ::GetModuleHandleW(L"Kernel32.dll"), "CreateSymbolicLinkW"));
-
- error_code TempDir(SmallVectorImpl<wchar_t> &result) {
- retry_temp_dir:
- DWORD len = ::GetTempPathW(result.capacity(), result.begin());
-
- if (len == 0)
- return windows_error(::GetLastError());
-
- if (len > result.capacity()) {
- result.reserve(len);
- goto retry_temp_dir;
- }
-
- result.set_size(len);
- return error_code::success();
- }
-
- bool is_separator(const wchar_t value) {
- switch (value) {
- case L'\\':
- case L'/':
- return true;
- default:
- return false;
- }
- }
+static std::error_code windows_error(DWORD E) {
+ return mapWindowsError(E);
}
-// FIXME: mode should be used here and default to user r/w only,
-// it currently comes in as a UNIX mode.
-static error_code createUniqueEntity(const Twine &model, int &result_fd,
- SmallVectorImpl<char> &result_path,
- bool makeAbsolute, unsigned mode,
- FSEntity Type) {
- // Use result_path as temp storage.
- result_path.set_size(0);
- StringRef m = model.toStringRef(result_path);
-
- SmallVector<wchar_t, 128> model_utf16;
- if (error_code ec = UTF8ToUTF16(m, model_utf16)) return ec;
-
- if (makeAbsolute) {
- // Make model absolute by prepending a temp directory if it's not already.
- bool absolute = sys::path::is_absolute(m);
-
- if (!absolute) {
- SmallVector<wchar_t, 64> temp_dir;
- if (error_code ec = TempDir(temp_dir)) return ec;
- // Handle c: by removing it.
- if (model_utf16.size() > 2 && model_utf16[1] == L':') {
- model_utf16.erase(model_utf16.begin(), model_utf16.begin() + 2);
- }
- model_utf16.insert(model_utf16.begin(), temp_dir.begin(), temp_dir.end());
- }
- }
-
- // Replace '%' with random chars. From here on, DO NOT modify model. It may be
- // needed if the randomly chosen path already exists.
- SmallVector<wchar_t, 128> random_path_utf16;
-
- // Get a Crypto Provider for CryptGenRandom.
- HCRYPTPROV HCPC;
- if (!::CryptAcquireContextW(&HCPC,
- NULL,
- NULL,
- PROV_RSA_FULL,
- CRYPT_VERIFYCONTEXT))
- return windows_error(::GetLastError());
- ScopedCryptContext CryptoProvider(HCPC);
-
-retry_random_path:
- random_path_utf16.set_size(0);
- for (SmallVectorImpl<wchar_t>::const_iterator i = model_utf16.begin(),
- e = model_utf16.end();
- i != e; ++i) {
- if (*i == L'%') {
- BYTE val = 0;
- if (!::CryptGenRandom(CryptoProvider, 1, &val))
- return windows_error(::GetLastError());
- random_path_utf16.push_back(L"0123456789abcdef"[val & 15]);
- }
- else
- random_path_utf16.push_back(*i);
- }
- // Make random_path_utf16 null terminated.
- random_path_utf16.push_back(0);
- random_path_utf16.pop_back();
-
- HANDLE TempFileHandle = INVALID_HANDLE_VALUE;
-
- switch (Type) {
- case FS_File: {
- // Try to create + open the path.
- TempFileHandle =
- ::CreateFileW(random_path_utf16.begin(), GENERIC_READ | GENERIC_WRITE,
- FILE_SHARE_READ, NULL,
- // Return ERROR_FILE_EXISTS if the file
- // already exists.
- CREATE_NEW, FILE_ATTRIBUTE_TEMPORARY, NULL);
- if (TempFileHandle == INVALID_HANDLE_VALUE) {
- // If the file existed, try again, otherwise, error.
- error_code ec = windows_error(::GetLastError());
- if (ec == windows_error::file_exists)
- goto retry_random_path;
-
- return ec;
- }
-
- // Convert the Windows API file handle into a C-runtime handle.
- int fd = ::_open_osfhandle(intptr_t(TempFileHandle), 0);
- if (fd == -1) {
- ::CloseHandle(TempFileHandle);
- ::DeleteFileW(random_path_utf16.begin());
- // MSDN doesn't say anything about _open_osfhandle setting errno or
- // GetLastError(), so just return invalid_handle.
- return windows_error::invalid_handle;
- }
-
- result_fd = fd;
- break;
- }
-
- case FS_Name: {
- DWORD attributes = ::GetFileAttributesW(random_path_utf16.begin());
- if (attributes != INVALID_FILE_ATTRIBUTES)
- goto retry_random_path;
- error_code EC = make_error_code(windows_error(::GetLastError()));
- if (EC != windows_error::file_not_found &&
- EC != windows_error::path_not_found)
- return EC;
- break;
- }
-
- case FS_Dir:
- if (!::CreateDirectoryW(random_path_utf16.begin(), NULL)) {
- error_code EC = windows_error(::GetLastError());
- if (EC != windows_error::already_exists)
- return EC;
- goto retry_random_path;
- }
- break;
- }
-
- // Set result_path to the utf-8 representation of the path.
- if (error_code ec = UTF16ToUTF8(random_path_utf16.begin(),
- random_path_utf16.size(), result_path)) {
- switch (Type) {
- case FS_File:
- ::CloseHandle(TempFileHandle);
- ::DeleteFileW(random_path_utf16.begin());
- case FS_Name:
- break;
- case FS_Dir:
- ::RemoveDirectoryW(random_path_utf16.begin());
- break;
- }
- return ec;
+static bool is_separator(const wchar_t value) {
+ switch (value) {
+ case L'\\':
+ case L'/':
+ return true;
+ default:
+ return false;
}
-
- return error_code::success();
}
namespace llvm {
return Ret;
}
-error_code current_path(SmallVectorImpl<char> &result) {
+std::error_code current_path(SmallVectorImpl<char> &result) {
SmallVector<wchar_t, MAX_PATH> cur_path;
DWORD len = MAX_PATH;
return UTF16ToUTF8(cur_path.begin(), cur_path.size(), result);
}
-error_code create_directory(const Twine &path, bool &existed) {
+std::error_code create_directory(const Twine &path, bool IgnoreExisting) {
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;
- if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
- path_utf16))
+ if (std::error_code ec =
+ UTF8ToUTF16(path.toStringRef(path_storage), path_utf16))
return ec;
if (!::CreateDirectoryW(path_utf16.begin(), NULL)) {
- error_code ec = windows_error(::GetLastError());
- if (ec == windows_error::already_exists)
- existed = true;
- else
- return ec;
- } else
- existed = false;
+ DWORD LastError = ::GetLastError();
+ if (LastError != ERROR_ALREADY_EXISTS || !IgnoreExisting)
+ return windows_error(LastError);
+ }
- return error_code::success();
+ return std::error_code();
}
-error_code create_hard_link(const Twine &to, const Twine &from) {
+// We can't use symbolic links for windows.
+std::error_code create_link(const Twine &to, const Twine &from) {
// Get arguments.
SmallString<128> from_storage;
SmallString<128> to_storage;
// Convert to utf-16.
SmallVector<wchar_t, 128> wide_from;
SmallVector<wchar_t, 128> wide_to;
- if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec;
- if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec;
+ if (std::error_code ec = UTF8ToUTF16(f, wide_from))
+ return ec;
+ if (std::error_code ec = UTF8ToUTF16(t, wide_to))
+ return ec;
if (!::CreateHardLinkW(wide_from.begin(), wide_to.begin(), NULL))
return windows_error(::GetLastError());
- return error_code::success();
+ return std::error_code();
}
-error_code create_symlink(const Twine &to, const Twine &from) {
- // Only do it if the function is available at runtime.
- if (!create_symbolic_link_api)
- return make_error_code(errc::function_not_supported);
-
- // Get arguments.
- SmallString<128> from_storage;
- SmallString<128> to_storage;
- StringRef f = from.toStringRef(from_storage);
- StringRef t = to.toStringRef(to_storage);
-
- // Convert to utf-16.
- SmallVector<wchar_t, 128> wide_from;
- SmallVector<wchar_t, 128> wide_to;
- if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec;
- if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec;
-
- if (!create_symbolic_link_api(wide_from.begin(), wide_to.begin(), 0))
- return windows_error(::GetLastError());
-
- return error_code::success();
-}
-
-error_code remove(const Twine &path, bool &existed) {
+std::error_code remove(const Twine &path, bool IgnoreNonExisting) {
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;
- file_status st;
- error_code EC = status(path, st);
- if (EC) {
- if (EC == windows_error::file_not_found ||
- EC == windows_error::path_not_found) {
- existed = false;
- return error_code::success();
- }
- return EC;
+ file_status ST;
+ if (std::error_code EC = status(path, ST)) {
+ if (EC != errc::no_such_file_or_directory || !IgnoreNonExisting)
+ return EC;
+ return std::error_code();
}
- if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
- path_utf16))
+ if (std::error_code ec =
+ UTF8ToUTF16(path.toStringRef(path_storage), path_utf16))
return ec;
- if (st.type() == file_type::directory_file) {
+ if (ST.type() == file_type::directory_file) {
if (!::RemoveDirectoryW(c_str(path_utf16))) {
- error_code ec = windows_error(::GetLastError());
- if (ec != windows_error::file_not_found)
- return ec;
- existed = false;
- } else
- existed = true;
- } else {
- if (!::DeleteFileW(c_str(path_utf16))) {
- error_code ec = windows_error(::GetLastError());
- if (ec != windows_error::file_not_found)
- return ec;
- existed = false;
- } else
- existed = true;
+ std::error_code EC = windows_error(::GetLastError());
+ if (EC != errc::no_such_file_or_directory || !IgnoreNonExisting)
+ return EC;
+ }
+ return std::error_code();
}
-
- return error_code::success();
+ if (!::DeleteFileW(c_str(path_utf16))) {
+ std::error_code EC = windows_error(::GetLastError());
+ if (EC != errc::no_such_file_or_directory || !IgnoreNonExisting)
+ return EC;
+ }
+ return std::error_code();
}
-error_code rename(const Twine &from, const Twine &to) {
+std::error_code rename(const Twine &from, const Twine &to) {
// Get arguments.
SmallString<128> from_storage;
SmallString<128> to_storage;
// Convert to utf-16.
SmallVector<wchar_t, 128> wide_from;
SmallVector<wchar_t, 128> wide_to;
- if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec;
- if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec;
+ if (std::error_code ec = UTF8ToUTF16(f, wide_from))
+ return ec;
+ if (std::error_code ec = UTF8ToUTF16(t, wide_to))
+ return ec;
- error_code ec = error_code::success();
+ std::error_code ec = std::error_code();
for (int i = 0; i < 2000; i++) {
if (::MoveFileExW(wide_from.begin(), wide_to.begin(),
MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING))
- return error_code::success();
- ec = windows_error(::GetLastError());
- if (ec != windows_error::access_denied)
+ 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
return ec;
}
-error_code resize_file(const Twine &path, uint64_t size) {
+std::error_code resize_file(const Twine &path, uint64_t size) {
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;
- if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
- path_utf16))
+ if (std::error_code ec =
+ UTF8ToUTF16(path.toStringRef(path_storage), path_utf16))
return ec;
int fd = ::_wopen(path_utf16.begin(), O_BINARY | _O_RDWR, S_IWRITE);
if (fd == -1)
- return error_code(errno, generic_category());
+ return std::error_code(errno, std::generic_category());
#ifdef HAVE__CHSIZE_S
errno_t error = ::_chsize_s(fd, size);
#else
errno_t error = ::_chsize(fd, size);
#endif
::close(fd);
- return error_code(error, generic_category());
+ return std::error_code(error, std::generic_category());
}
-error_code exists(const Twine &path, bool &result) {
+std::error_code exists(const Twine &path, bool &result) {
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;
- if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
- path_utf16))
+ if (std::error_code ec =
+ UTF8ToUTF16(path.toStringRef(path_storage), path_utf16))
return ec;
DWORD attributes = ::GetFileAttributesW(path_utf16.begin());
if (attributes == INVALID_FILE_ATTRIBUTES) {
// See if the file didn't actually exist.
- error_code ec = make_error_code(windows_error(::GetLastError()));
- if (ec != windows_error::file_not_found &&
- ec != windows_error::path_not_found)
- return ec;
+ DWORD LastError = ::GetLastError();
+ if (LastError != ERROR_FILE_NOT_FOUND &&
+ LastError != ERROR_PATH_NOT_FOUND)
+ return windows_error(LastError);
result = false;
} else
result = true;
- return error_code::success();
+ return std::error_code();
}
bool can_write(const Twine &Path) {
A.VolumeSerialNumber == B.VolumeSerialNumber;
}
-error_code equivalent(const Twine &A, const Twine &B, bool &result) {
+std::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;
+ if (std::error_code ec = status(A, fsA))
+ return ec;
+ if (std::error_code ec = status(B, fsB))
+ return ec;
result = equivalent(fsA, fsB);
- return error_code::success();
+ return std::error_code();
}
static bool isReservedName(StringRef path) {
return false;
}
-static error_code getStatus(HANDLE FileHandle, file_status &Result) {
+static std::error_code getStatus(HANDLE FileHandle, file_status &Result) {
if (FileHandle == INVALID_HANDLE_VALUE)
goto handle_status_error;
if (Err != NO_ERROR)
return windows_error(Err);
Result = file_status(file_type::type_unknown);
- return error_code::success();
+ return std::error_code();
}
case FILE_TYPE_DISK:
break;
case FILE_TYPE_CHAR:
Result = file_status(file_type::character_file);
- return error_code::success();
+ return std::error_code();
case FILE_TYPE_PIPE:
Result = file_status(file_type::fifo_file);
- return error_code::success();
+ return std::error_code();
}
BY_HANDLE_FILE_INFORMATION Info;
Info.ftLastWriteTime.dwLowDateTime,
Info.dwVolumeSerialNumber, Info.nFileSizeHigh,
Info.nFileSizeLow, Info.nFileIndexHigh, Info.nFileIndexLow);
- return error_code::success();
+ return std::error_code();
}
handle_status_error:
- error_code EC = windows_error(::GetLastError());
- if (EC == windows_error::file_not_found ||
- EC == windows_error::path_not_found)
+ DWORD LastError = ::GetLastError();
+ if (LastError == ERROR_FILE_NOT_FOUND ||
+ LastError == ERROR_PATH_NOT_FOUND)
Result = file_status(file_type::file_not_found);
- else if (EC == windows_error::sharing_violation)
+ else if (LastError == ERROR_SHARING_VIOLATION)
Result = file_status(file_type::type_unknown);
else
Result = file_status(file_type::status_error);
- return EC;
+ return windows_error(LastError);
}
-error_code status(const Twine &path, file_status &result) {
+std::error_code status(const Twine &path, file_status &result) {
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;
StringRef path8 = path.toStringRef(path_storage);
if (isReservedName(path8)) {
result = file_status(file_type::character_file);
- return error_code::success();
+ return std::error_code();
}
- if (error_code ec = UTF8ToUTF16(path8, path_utf16))
+ if (std::error_code ec = UTF8ToUTF16(path8, path_utf16))
return ec;
DWORD attr = ::GetFileAttributesW(path_utf16.begin());
return getStatus(h, result);
}
-error_code status(int FD, file_status &Result) {
+std::error_code status(int FD, file_status &Result) {
HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
return getStatus(FileHandle, Result);
}
-error_code setLastModificationAndAccessTime(int FD, TimeValue Time) {
+std::error_code setLastModificationAndAccessTime(int FD, TimeValue Time) {
ULARGE_INTEGER UI;
UI.QuadPart = Time.toWin32Time();
FILETIME FT;
HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
if (!SetFileTime(FileHandle, NULL, &FT, &FT))
return windows_error(::GetLastError());
- return error_code::success();
+ return std::error_code();
}
-error_code get_magic(const Twine &path, uint32_t len,
- SmallVectorImpl<char> &result) {
- SmallString<128> path_storage;
- SmallVector<wchar_t, 128> path_utf16;
- result.set_size(0);
-
- // Convert path to UTF-16.
- if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
- path_utf16))
- return ec;
-
- // Open file.
- HANDLE file = ::CreateFileW(c_str(path_utf16),
- GENERIC_READ,
- FILE_SHARE_READ,
- NULL,
- OPEN_EXISTING,
- FILE_ATTRIBUTE_READONLY,
- NULL);
- if (file == INVALID_HANDLE_VALUE)
- return windows_error(::GetLastError());
-
- // Allocate buffer.
- result.reserve(len);
-
- // Get magic!
- DWORD bytes_read = 0;
- BOOL read_success = ::ReadFile(file, result.data(), len, &bytes_read, NULL);
- error_code ec = windows_error(::GetLastError());
- ::CloseHandle(file);
- if (!read_success || (bytes_read != len)) {
- // Set result size to the number of bytes read if it's valid.
- if (bytes_read <= len)
- result.set_size(bytes_read);
- // ERROR_HANDLE_EOF is mapped to errc::value_too_large.
- return ec;
- }
-
- result.set_size(len);
- return error_code::success();
-}
-
-error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) {
+std::error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) {
FileDescriptor = FD;
// Make sure that the requested size fits within SIZE_T.
if (Size > std::numeric_limits<SIZE_T>::max()) {
(Offset + Size) & 0xffffffff,
0);
if (FileMappingHandle == NULL) {
- error_code ec = windows_error(GetLastError());
+ std::error_code ec = windows_error(GetLastError());
if (FileDescriptor) {
if (CloseFD)
_close(FileDescriptor);
Offset & 0xffffffff,
Size);
if (Mapping == NULL) {
- error_code ec = windows_error(GetLastError());
+ std::error_code ec = windows_error(GetLastError());
::CloseHandle(FileMappingHandle);
if (FileDescriptor) {
if (CloseFD)
MEMORY_BASIC_INFORMATION mbi;
SIZE_T Result = VirtualQuery(Mapping, &mbi, sizeof(mbi));
if (Result == 0) {
- error_code ec = windows_error(GetLastError());
+ std::error_code ec = windows_error(GetLastError());
::UnmapViewOfFile(Mapping);
::CloseHandle(FileMappingHandle);
if (FileDescriptor) {
_close(FileDescriptor); // Also closes FileHandle.
} else
::CloseHandle(FileHandle);
- return error_code::success();
+ return std::error_code();
}
mapped_file_region::mapped_file_region(const Twine &path,
mapmode mode,
uint64_t length,
uint64_t offset,
- error_code &ec)
+ std::error_code &ec)
: Mode(mode)
, Size(length)
, Mapping()
mapmode mode,
uint64_t length,
uint64_t offset,
- error_code &ec)
+ std::error_code &ec)
: Mode(mode)
, Size(length)
, Mapping()
::UnmapViewOfFile(Mapping);
}
-#if LLVM_HAS_RVALUE_REFERENCES
mapped_file_region::mapped_file_region(mapped_file_region &&other)
: Mode(other.Mode)
, Size(other.Size)
other.FileHandle = INVALID_HANDLE_VALUE;
other.FileDescriptor = 0;
}
-#endif
mapped_file_region::mapmode mapped_file_region::flags() const {
assert(Mapping && "Mapping failed but used anyway!");
return SysInfo.dwAllocationGranularity;
}
-error_code detail::directory_iterator_construct(detail::DirIterState &it,
+std::error_code detail::directory_iterator_construct(detail::DirIterState &it,
StringRef path){
SmallVector<wchar_t, 128> path_utf16;
- if (error_code ec = UTF8ToUTF16(path,
- path_utf16))
+ if (std::error_code ec = UTF8ToUTF16(path, path_utf16))
return ec;
// Convert path to the format that Windows is happy with.
(FilenameLen == 2 && FirstFind.cFileName[0] == L'.' &&
FirstFind.cFileName[1] == L'.'))
if (!::FindNextFileW(FindHandle, &FirstFind)) {
- error_code ec = windows_error(::GetLastError());
+ DWORD LastError = ::GetLastError();
// Check for end.
- if (ec == windows_error::no_more_files)
+ if (LastError == ERROR_NO_MORE_FILES)
return detail::directory_iterator_destruct(it);
- return ec;
+ return windows_error(LastError);
} else
FilenameLen = ::wcslen(FirstFind.cFileName);
// Construct the current directory entry.
SmallString<128> directory_entry_name_utf8;
- if (error_code ec = UTF16ToUTF8(FirstFind.cFileName,
- ::wcslen(FirstFind.cFileName),
- directory_entry_name_utf8))
+ if (std::error_code ec =
+ UTF16ToUTF8(FirstFind.cFileName, ::wcslen(FirstFind.cFileName),
+ directory_entry_name_utf8))
return ec;
it.IterationHandle = intptr_t(FindHandle.take());
path::append(directory_entry_path, directory_entry_name_utf8.str());
it.CurrentEntry = directory_entry(directory_entry_path.str());
- return error_code::success();
+ return std::error_code();
}
-error_code detail::directory_iterator_destruct(detail::DirIterState &it) {
+std::error_code detail::directory_iterator_destruct(detail::DirIterState &it) {
if (it.IterationHandle != 0)
// Closes the handle if it's valid.
ScopedFindHandle close(HANDLE(it.IterationHandle));
it.IterationHandle = 0;
it.CurrentEntry = directory_entry();
- return error_code::success();
+ return std::error_code();
}
-error_code detail::directory_iterator_increment(detail::DirIterState &it) {
+std::error_code detail::directory_iterator_increment(detail::DirIterState &it) {
WIN32_FIND_DATAW FindData;
if (!::FindNextFileW(HANDLE(it.IterationHandle), &FindData)) {
- error_code ec = windows_error(::GetLastError());
+ DWORD LastError = ::GetLastError();
// Check for end.
- if (ec == windows_error::no_more_files)
+ if (LastError == ERROR_NO_MORE_FILES)
return detail::directory_iterator_destruct(it);
- return ec;
+ return windows_error(LastError);
}
size_t FilenameLen = ::wcslen(FindData.cFileName);
return directory_iterator_increment(it);
SmallString<128> directory_entry_path_utf8;
- if (error_code ec = UTF16ToUTF8(FindData.cFileName,
- ::wcslen(FindData.cFileName),
- directory_entry_path_utf8))
+ if (std::error_code ec =
+ UTF16ToUTF8(FindData.cFileName, ::wcslen(FindData.cFileName),
+ directory_entry_path_utf8))
return ec;
it.CurrentEntry.replace_filename(Twine(directory_entry_path_utf8));
- return error_code::success();
-}
-
-error_code map_file_pages(const Twine &path, off_t file_offset, size_t size,
- bool map_writable, void *&result) {
- assert(0 && "NOT IMPLEMENTED");
- return windows_error::invalid_function;
+ return std::error_code();
}
-error_code unmap_file_pages(void *base, size_t size) {
- assert(0 && "NOT IMPLEMENTED");
- return windows_error::invalid_function;
-}
-
-error_code openFileForRead(const Twine &Name, int &ResultFD) {
+std::error_code openFileForRead(const Twine &Name, int &ResultFD) {
SmallString<128> PathStorage;
SmallVector<wchar_t, 128> PathUTF16;
- if (error_code EC = UTF8ToUTF16(Name.toStringRef(PathStorage),
- PathUTF16))
+ if (std::error_code EC =
+ UTF8ToUTF16(Name.toStringRef(PathStorage), PathUTF16))
return EC;
HANDLE H = ::CreateFileW(PathUTF16.begin(), GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (H == INVALID_HANDLE_VALUE) {
- error_code EC = windows_error(::GetLastError());
+ DWORD LastError = ::GetLastError();
+ std::error_code EC = windows_error(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.
- if (EC != windows_error::access_denied)
+ if (LastError != ERROR_ACCESS_DENIED)
return EC;
if (is_directory(Name))
- return error_code(errc::is_a_directory, posix_category());
+ return make_error_code(errc::is_a_directory);
return EC;
}
int FD = ::_open_osfhandle(intptr_t(H), 0);
if (FD == -1) {
::CloseHandle(H);
- return windows_error::invalid_handle;
+ return windows_error(ERROR_INVALID_HANDLE);
}
ResultFD = FD;
- return error_code::success();
+ return std::error_code();
}
-error_code openFileForWrite(const Twine &Name, int &ResultFD,
+std::error_code openFileForWrite(const Twine &Name, int &ResultFD,
sys::fs::OpenFlags Flags, unsigned Mode) {
// Verify that we don't have both "append" and "excl".
assert((!(Flags & sys::fs::F_Excl) || !(Flags & sys::fs::F_Append)) &&
SmallString<128> PathStorage;
SmallVector<wchar_t, 128> PathUTF16;
- if (error_code EC = UTF8ToUTF16(Name.toStringRef(PathStorage),
- PathUTF16))
+ if (std::error_code EC =
+ UTF8ToUTF16(Name.toStringRef(PathStorage), PathUTF16))
return EC;
DWORD CreationDisposition;
else
CreationDisposition = CREATE_ALWAYS;
- HANDLE H = ::CreateFileW(PathUTF16.begin(), GENERIC_WRITE,
+ DWORD Access = GENERIC_WRITE;
+ if (Flags & F_RW)
+ Access |= GENERIC_READ;
+
+ HANDLE H = ::CreateFileW(PathUTF16.begin(), Access,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
CreationDisposition, FILE_ATTRIBUTE_NORMAL, NULL);
if (H == INVALID_HANDLE_VALUE) {
- error_code EC = windows_error(::GetLastError());
+ DWORD LastError = ::GetLastError();
+ std::error_code EC = windows_error(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.
- if (EC != windows_error::access_denied)
+ if (LastError != ERROR_ACCESS_DENIED)
return EC;
if (is_directory(Name))
- return error_code(errc::is_a_directory, posix_category());
+ return make_error_code(errc::is_a_directory);
return EC;
}
if (Flags & F_Append)
OpenFlags |= _O_APPEND;
- if (!(Flags & F_Binary))
+ if (Flags & F_Text)
OpenFlags |= _O_TEXT;
int FD = ::_open_osfhandle(intptr_t(H), OpenFlags);
if (FD == -1) {
::CloseHandle(H);
- return windows_error::invalid_handle;
+ return windows_error(ERROR_INVALID_HANDLE);
}
ResultFD = FD;
- return error_code::success();
+ return std::error_code();
}
} // 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)
+ return false;
+
+ if (UTF16ToUTF8(Path, ::wcslen(Path), result))
+ return false;
+
+ return true;
+}
+
+static bool getTempDirEnvVar(const char *Var, SmallVectorImpl<char> &Res) {
+ SmallVector<wchar_t, 128> NameUTF16;
+ if (windows::UTF8ToUTF16(Var, NameUTF16))
+ return false;
+
+ SmallVector<wchar_t, 1024> Buf;
+ size_t Size = 1024;
+ do {
+ Buf.reserve(Size);
+ Size =
+ GetEnvironmentVariableW(NameUTF16.data(), Buf.data(), Buf.capacity());
+ if (Size == 0)
+ return false;
+
+ // Try again with larger buffer.
+ } while (Size > Buf.capacity());
+ Buf.set_size(Size);
+
+ if (windows::UTF16ToUTF8(Buf.data(), Size, Res))
+ return false;
+ return true;
+}
+
+static bool getTempDirEnvVar(SmallVectorImpl<char> &Res) {
+ const char *EnvironmentVariables[] = {"TMP", "TEMP", "USERPROFILE"};
+ for (const char *Env : EnvironmentVariables) {
+ if (getTempDirEnvVar(Env, Res))
+ return true;
+ }
+ return false;
+}
+
+void system_temp_directory(bool ErasedOnReboot, SmallVectorImpl<char> &Result) {
+ (void)ErasedOnReboot;
+ Result.clear();
+
+ // Check whether the temporary directory is specified by an environment
+ // variable.
+ if (getTempDirEnvVar(Result))
+ return;
+
+ // Fall back to a system default.
+ const char *DefaultResult = "C:\\TEMP";
+ Result.append(DefaultResult, DefaultResult + strlen(DefaultResult));
+}
+} // end namespace path
+
namespace windows {
-llvm::error_code UTF8ToUTF16(llvm::StringRef utf8,
- llvm::SmallVectorImpl<wchar_t> &utf16) {
- int len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
- utf8.begin(), utf8.size(),
- utf16.begin(), 0);
+std::error_code UTF8ToUTF16(llvm::StringRef utf8,
+ llvm::SmallVectorImpl<wchar_t> &utf16) {
+ if (!utf8.empty()) {
+ int len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, utf8.begin(),
+ utf8.size(), utf16.begin(), 0);
- if (len == 0)
- return llvm::windows_error(::GetLastError());
+ if (len == 0)
+ return windows_error(::GetLastError());
- utf16.reserve(len + 1);
- utf16.set_size(len);
+ utf16.reserve(len + 1);
+ utf16.set_size(len);
- len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
- utf8.begin(), utf8.size(),
- utf16.begin(), utf16.size());
+ len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, utf8.begin(),
+ utf8.size(), utf16.begin(), utf16.size());
- if (len == 0)
- return llvm::windows_error(::GetLastError());
+ if (len == 0)
+ return windows_error(::GetLastError());
+ }
// Make utf16 null terminated.
utf16.push_back(0);
utf16.pop_back();
- return llvm::error_code::success();
+ return std::error_code();
}
-llvm::error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
- llvm::SmallVectorImpl<char> &utf8) {
- // Get length.
- int len = ::WideCharToMultiByte(CP_UTF8, 0,
- utf16, utf16_len,
- utf8.begin(), 0,
- NULL, NULL);
+std::error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
+ llvm::SmallVectorImpl<char> &utf8) {
+ if (utf16_len) {
+ // Get length.
+ int len = ::WideCharToMultiByte(CP_UTF8, 0, utf16, utf16_len, utf8.begin(),
+ 0, NULL, NULL);
- if (len == 0)
- return llvm::windows_error(::GetLastError());
+ if (len == 0)
+ return windows_error(::GetLastError());
- utf8.reserve(len);
- utf8.set_size(len);
+ utf8.reserve(len);
+ utf8.set_size(len);
- // Now do the actual conversion.
- len = ::WideCharToMultiByte(CP_UTF8, 0,
- utf16, utf16_len,
- utf8.data(), utf8.size(),
- NULL, NULL);
+ // Now do the actual conversion.
+ len = ::WideCharToMultiByte(CP_UTF8, 0, utf16, utf16_len, utf8.data(),
+ utf8.size(), NULL, NULL);
- if (len == 0)
- return llvm::windows_error(::GetLastError());
+ if (len == 0)
+ return windows_error(::GetLastError());
+ }
// Make utf8 null terminated.
utf8.push_back(0);
utf8.pop_back();
- return llvm::error_code::success();
+ return std::error_code();
}
} // end namespace windows
} // end namespace sys
projects / oota-llvm.git / blobdiff