//===----------------------------------------------------------------------===//
#include "llvm/ADT/STLExtras.h"
-#include "Windows.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 "Windows.h"
+#include <shlobj.h>
+
#undef max
// MinGW doesn't define this.
typedef int errno_t;
#endif
+#ifdef _MSC_VER
+# pragma comment(lib, "advapi32.lib") // This provides CryptAcquireContextW.
+#endif
+
using namespace llvm;
+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(::GetModuleHandleA("kernel32.dll"),
- "CreateSymbolicLinkW"));
-
- error_code UTF8ToUTF16(StringRef utf8, SmallVectorImpl<wchar_t> &utf16) {
- int len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
- utf8.begin(), utf8.size(),
- utf16.begin(), 0);
-
- if (len == 0)
- return windows_error(::GetLastError());
-
- utf16.reserve(len + 1);
- utf16.set_size(len);
-
- len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
- utf8.begin(), utf8.size(),
- utf16.begin(), utf16.size());
-
- if (len == 0)
- return windows_error(::GetLastError());
-
- // Make utf16 null terminated.
- utf16.push_back(0);
- utf16.pop_back();
-
- return error_code::success();
- }
-
- error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
- SmallVectorImpl<char> &utf8) {
- // Get length.
- int len = ::WideCharToMultiByte(CP_UTF8, 0,
- utf16, utf16_len,
- utf8.begin(), 0,
- NULL, NULL);
-
- if (len == 0)
- return windows_error(::GetLastError());
-
- 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);
-
- if (len == 0)
- return windows_error(::GetLastError());
-
- // Make utf8 null terminated.
- utf8.push_back(0);
- utf8.pop_back();
-
- return error_code::success();
- }
+ PtrCreateSymbolicLinkW create_symbolic_link_api =
+ PtrCreateSymbolicLinkW(::GetProcAddress(
+ ::GetModuleHandleW(L"Kernel32.dll"), "CreateSymbolicLinkW"));
error_code TempDir(SmallVectorImpl<wchar_t> &result) {
retry_temp_dir:
// 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("0123456789abcdef"[val & 15]);
+ unsigned val = sys::Process::GetRandomNumber();
+ random_path_utf16.push_back(L"0123456789abcdef"[val & 15]);
}
else
random_path_utf16.push_back(*i);
random_path_utf16.push_back(0);
random_path_utf16.pop_back();
- HANDLE TempFileHandle;
+ HANDLE TempFileHandle = INVALID_HANDLE_VALUE;
switch (Type) {
case FS_File: {
namespace fs {
std::string getMainExecutable(const char *argv0, void *MainExecAddr) {
- char pathname[MAX_PATH];
- DWORD ret = ::GetModuleFileNameA(NULL, pathname, MAX_PATH);
- return ret != MAX_PATH ? pathname : "";
+ SmallVector<wchar_t, MAX_PATH> PathName;
+ DWORD Size = ::GetModuleFileNameW(NULL, PathName.data(), PathName.capacity());
+
+ // A zero return value indicates a failure other than insufficient space.
+ if (Size == 0)
+ return "";
+
+ // Insufficient space is determined by a return value equal to the size of
+ // the buffer passed in.
+ if (Size == PathName.capacity())
+ return "";
+
+ // On success, GetModuleFileNameW returns the number of characters written to
+ // the buffer not including the NULL terminator.
+ PathName.set_size(Size);
+
+ // Convert the result from UTF-16 to UTF-8.
+ SmallVector<char, MAX_PATH> PathNameUTF8;
+ if (UTF16ToUTF8(PathName.data(), PathName.size(), PathNameUTF8))
+ return "";
+
+ return std::string(PathNameUTF8.data());
}
+UniqueID file_status::getUniqueID() const {
+ // The file is uniquely identified by the volume serial number along
+ // with the 64-bit file identifier.
+ uint64_t FileID = (static_cast<uint64_t>(FileIndexHigh) << 32ULL) |
+ static_cast<uint64_t>(FileIndexLow);
+
+ return UniqueID(VolumeSerialNumber, FileID);
+}
TimeValue file_status::getLastModificationTime() const {
ULARGE_INTEGER UI;
}
error_code current_path(SmallVectorImpl<char> &result) {
- SmallVector<wchar_t, 128> cur_path;
- cur_path.reserve(128);
-retry_cur_dir:
- DWORD len = ::GetCurrentDirectoryW(cur_path.capacity(), cur_path.data());
+ SmallVector<wchar_t, MAX_PATH> cur_path;
+ DWORD len = MAX_PATH;
- // A zero return value indicates a failure other than insufficient space.
- if (len == 0)
- return windows_error(::GetLastError());
-
- // If there's insufficient space, the len returned is larger than the len
- // given.
- if (len > cur_path.capacity()) {
+ do {
cur_path.reserve(len);
- goto retry_cur_dir;
- }
-
- cur_path.set_size(len);
- // cur_path now holds the current directory in utf-16. Convert to utf-8.
-
- // Find out how much space we need. Sadly, this function doesn't return the
- // size needed unless you tell it the result size is 0, which means you
- // _always_ have to call it twice.
- len = ::WideCharToMultiByte(CP_UTF8, 0,
- cur_path.data(), cur_path.size(),
- result.data(), 0,
- NULL, NULL);
-
- if (len == 0)
- return make_error_code(windows_error(::GetLastError()));
-
- result.reserve(len);
- result.set_size(len);
- // Now do the actual conversion.
- len = ::WideCharToMultiByte(CP_UTF8, 0,
- cur_path.data(), cur_path.size(),
- result.data(), result.size(),
- NULL, NULL);
- if (len == 0)
- return windows_error(::GetLastError());
-
- return error_code::success();
-}
+ len = ::GetCurrentDirectoryW(cur_path.capacity(), cur_path.data());
-error_code copy_file(const Twine &from, const Twine &to, copy_option copt) {
- // 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;
-
- // Copy the file.
- BOOL res = ::CopyFileW(wide_from.begin(), wide_to.begin(),
- copt != copy_option::overwrite_if_exists);
+ // A zero return value indicates a failure other than insufficient space.
+ if (len == 0)
+ return windows_error(::GetLastError());
- if (res == 0)
- return windows_error(::GetLastError());
+ // If there's insufficient space, the len returned is larger than the len
+ // given.
+ } while (len > cur_path.capacity());
- return error_code::success();
+ // On success, GetCurrentDirectoryW returns the number of characters not
+ // including the null-terminator.
+ cur_path.set_size(len);
+ return UTF16ToUTF8(cur_path.begin(), cur_path.size(), result);
}
error_code create_directory(const Twine &path, bool &existed) {
SmallVector<wchar_t, 128> path_utf16;
file_status st;
- if (error_code ec = status(path, st))
- return ec;
+ 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;
+ }
if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
path_utf16))
return error_code::success();
}
-error_code getUniqueID(const Twine Path, uint64_t &Result) {
- file_status Status;
- if (error_code E = status(Path, Status))
- return E;
-
- // The file is uniquely identified by the volume serial number along
- // with the 64-bit file identifier.
- Result = (static_cast<uint64_t>(Status.FileIndexHigh) << 32ULL) |
- static_cast<uint64_t>(Status.FileIndexLow);
-
- // Because the serial number is 32-bits, but we've already used up all 64
- // bits for the file index, XOR the serial number into the high 32 bits of
- // the resulting value. We could potentially get collisons from this, but
- // the likelihood is low.
- Result ^= (static_cast<uint64_t>(Status.VolumeSerialNumber) << 32ULL);
-
- return error_code::success();
-}
-
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
return false;
}
+static error_code getStatus(HANDLE FileHandle, file_status &Result) {
+ if (FileHandle == INVALID_HANDLE_VALUE)
+ goto handle_status_error;
+
+ switch (::GetFileType(FileHandle)) {
+ default:
+ llvm_unreachable("Don't know anything about this file type");
+ case FILE_TYPE_UNKNOWN: {
+ DWORD Err = ::GetLastError();
+ if (Err != NO_ERROR)
+ return windows_error(Err);
+ Result = file_status(file_type::type_unknown);
+ return error_code::success();
+ }
+ case FILE_TYPE_DISK:
+ break;
+ case FILE_TYPE_CHAR:
+ Result = file_status(file_type::character_file);
+ return error_code::success();
+ case FILE_TYPE_PIPE:
+ Result = file_status(file_type::fifo_file);
+ return error_code::success();
+ }
+
+ BY_HANDLE_FILE_INFORMATION Info;
+ if (!::GetFileInformationByHandle(FileHandle, &Info))
+ goto handle_status_error;
+
+ {
+ file_type Type = (Info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+ ? file_type::directory_file
+ : file_type::regular_file;
+ Result =
+ file_status(Type, Info.ftLastWriteTime.dwHighDateTime,
+ Info.ftLastWriteTime.dwLowDateTime,
+ Info.dwVolumeSerialNumber, Info.nFileSizeHigh,
+ Info.nFileSizeLow, Info.nFileIndexHigh, Info.nFileIndexLow);
+ return error_code::success();
+ }
+
+handle_status_error:
+ error_code EC = windows_error(::GetLastError());
+ if (EC == windows_error::file_not_found ||
+ EC == windows_error::path_not_found)
+ Result = file_status(file_type::file_not_found);
+ else if (EC == windows_error::sharing_violation)
+ Result = file_status(file_type::type_unknown);
+ else
+ Result = file_status(file_type::status_error);
+ return EC;
+}
+
error_code status(const Twine &path, file_status &result) {
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;
DWORD attr = ::GetFileAttributesW(path_utf16.begin());
if (attr == INVALID_FILE_ATTRIBUTES)
- goto handle_status_error;
+ return getStatus(INVALID_HANDLE_VALUE, result);
// Handle reparse points.
if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
FILE_FLAG_BACKUP_SEMANTICS,
0));
if (!h)
- goto handle_status_error;
+ return getStatus(INVALID_HANDLE_VALUE, result);
}
- if (attr & FILE_ATTRIBUTE_DIRECTORY)
- result = file_status(file_type::directory_file);
- else {
- ScopedFileHandle h(
- ::CreateFileW(path_utf16.begin(),
- 0, // Attributes only.
+ 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));
+ 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 = file_status(
- file_type::regular_file, Info.ftLastWriteTime.dwHighDateTime,
- Info.ftLastWriteTime.dwLowDateTime, Info.dwVolumeSerialNumber,
- Info.nFileSizeHigh, Info.nFileSizeLow, Info.nFileIndexHigh,
- Info.nFileIndexLow);
- }
- return error_code::success();
+ return getStatus(INVALID_HANDLE_VALUE, result);
-handle_status_error:
- error_code ec = windows_error(::GetLastError());
- if (ec == windows_error::file_not_found ||
- ec == windows_error::path_not_found)
- result = file_status(file_type::file_not_found);
- else if (ec == windows_error::sharing_violation)
- result = file_status(file_type::type_unknown);
- else {
- result = file_status(file_type::status_error);
- return ec;
- }
+ return getStatus(h, result);
+}
- return error_code::success();
+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) {
case readonly: flprotect = PAGE_READONLY; break;
case readwrite: flprotect = PAGE_READWRITE; break;
case priv: flprotect = PAGE_WRITECOPY; break;
- default: llvm_unreachable("invalid mapping mode");
}
- FileMappingHandle = ::CreateFileMapping(FileHandle,
- 0,
- flprotect,
- Size >> 32,
- Size & 0xffffffff,
- 0);
+ FileMappingHandle =
+ ::CreateFileMappingW(FileHandle, 0, flprotect,
+ (Offset + Size) >> 32,
+ (Offset + Size) & 0xffffffff,
+ 0);
if (FileMappingHandle == NULL) {
error_code ec = windows_error(GetLastError());
if (FileDescriptor) {
case readonly: dwDesiredAccess = FILE_MAP_READ; break;
case readwrite: dwDesiredAccess = FILE_MAP_WRITE; break;
case priv: dwDesiredAccess = FILE_MAP_COPY; break;
- default: llvm_unreachable("invalid mapping mode");
}
Mapping = ::MapViewOfFile(FileMappingHandle,
dwDesiredAccess,
mapmode mode,
uint64_t length,
uint64_t offset,
- error_code &ec)
+ error_code &ec)
: Mode(mode)
, Size(length)
, Mapping()
}
char *mapped_file_region::data() const {
- assert(Mode != readonly && "Cannot get non const data for readonly mapping!");
+ assert(Mode != readonly && "Cannot get non-const data for readonly mapping!");
assert(Mapping && "Mapping failed but used anyway!");
return reinterpret_cast<char*>(Mapping);
}
return error_code::success();
}
-error_code map_file_pages(const Twine &path, off_t file_offset, size_t size,
+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 windows_error::invalid_function;
}
+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))
+ 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());
+ // 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)
+ return EC;
+ if (is_directory(Name))
+ return error_code(errc::is_a_directory, posix_category());
+ return EC;
+ }
+ int FD = ::_open_osfhandle(intptr_t(H), 0);
+ if (FD == -1) {
+ ::CloseHandle(H);
+ return windows_error::invalid_handle;
+ }
+ ResultFD = FD;
+ return error_code::success();
+}
+
+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)) &&
+ "Cannot specify both 'excl' and 'append' file creation flags!");
+
+ SmallString<128> PathStorage;
+ SmallVector<wchar_t, 128> PathUTF16;
+
+ if (error_code EC = UTF8ToUTF16(Name.toStringRef(PathStorage),
+ PathUTF16))
+ return EC;
+
+ DWORD CreationDisposition;
+ if (Flags & F_Excl)
+ CreationDisposition = CREATE_NEW;
+ else if (Flags & F_Append)
+ CreationDisposition = OPEN_ALWAYS;
+ else
+ CreationDisposition = CREATE_ALWAYS;
+
+ HANDLE H = ::CreateFileW(PathUTF16.begin(), GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ CreationDisposition, FILE_ATTRIBUTE_NORMAL, NULL);
+
+ if (H == INVALID_HANDLE_VALUE) {
+ error_code EC = windows_error(::GetLastError());
+ // 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)
+ return EC;
+ if (is_directory(Name))
+ return error_code(errc::is_a_directory, posix_category());
+ return EC;
+ }
+
+ int OpenFlags = 0;
+ if (Flags & F_Append)
+ OpenFlags |= _O_APPEND;
+
+ if (!(Flags & F_Binary))
+ OpenFlags |= _O_TEXT;
+
+ int FD = ::_open_osfhandle(intptr_t(H), OpenFlags);
+ if (FD == -1) {
+ ::CloseHandle(H);
+ return windows_error::invalid_handle;
+ }
+
+ ResultFD = FD;
+ return error_code::success();
+}
} // 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;
+}
+
+} // 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);
+
+ if (len == 0)
+ return llvm::windows_error(::GetLastError());
+
+ utf16.reserve(len + 1);
+ utf16.set_size(len);
+
+ len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
+ utf8.begin(), utf8.size(),
+ utf16.begin(), utf16.size());
+
+ if (len == 0)
+ return llvm::windows_error(::GetLastError());
+
+ // Make utf16 null terminated.
+ utf16.push_back(0);
+ utf16.pop_back();
+
+ return llvm::error_code::success();
+}
+
+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);
+
+ if (len == 0)
+ return llvm::windows_error(::GetLastError());
+
+ 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);
+
+ if (len == 0)
+ return llvm::windows_error(::GetLastError());
+
+ // Make utf8 null terminated.
+ utf8.push_back(0);
+ utf8.pop_back();
+
+ return llvm::error_code::success();
+}
+} // end namespace windows
} // end namespace sys
} // end namespace llvm
projects / oota-llvm.git / blobdiff