2013-06-26 21:33:03 +02:00
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//===- llvm/Support/Windows/Path.inc - Windows Path Impl --------*- C++ -*-===//
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2010-11-29 23:28:51 +01:00
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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2013-06-26 21:33:03 +02:00
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// This file implements the Windows specific implementation of the Path API.
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2010-11-29 23:28:51 +01:00
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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//=== WARNING: Implementation here must contain only generic Windows code that
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//=== is guaranteed to work on *all* Windows variants.
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//===----------------------------------------------------------------------===//
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2013-07-15 09:15:05 +02:00
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#include "llvm/ADT/STLExtras.h"
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2014-06-11 21:05:50 +02:00
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#include "llvm/Support/WindowsError.h"
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2010-12-03 18:54:07 +01:00
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#include <fcntl.h>
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2010-12-03 02:21:28 +01:00
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#include <io.h>
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2010-12-03 18:54:07 +01:00
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#include <sys/stat.h>
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#include <sys/types.h>
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2010-11-29 23:28:51 +01:00
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2014-02-12 12:50:22 +01:00
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// These two headers must be included last, and make sure shlobj is required
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// after Windows.h to make sure it picks up our definition of _WIN32_WINNT
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2014-02-12 22:26:20 +01:00
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#include "WindowsSupport.h"
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2014-02-12 12:50:22 +01:00
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#include <shlobj.h>
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2014-01-07 12:48:04 +01:00
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2012-08-15 21:05:47 +02:00
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#undef max
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2010-12-03 19:03:28 +01:00
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// MinGW doesn't define this.
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2010-12-03 19:04:11 +01:00
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#ifndef _ERRNO_T_DEFINED
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#define _ERRNO_T_DEFINED
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typedef int errno_t;
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2010-12-03 19:03:28 +01:00
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#endif
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2013-08-07 22:19:31 +02:00
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#ifdef _MSC_VER
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# pragma comment(lib, "advapi32.lib") // This provides CryptAcquireContextW.
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2016-01-12 19:33:49 +01:00
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# pragma comment(lib, "ole32.lib") // This provides CoTaskMemFree
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2013-08-07 22:19:31 +02:00
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#endif
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2010-12-01 20:32:01 +01:00
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using namespace llvm;
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2013-09-10 21:45:51 +02:00
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using llvm::sys::windows::UTF8ToUTF16;
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using llvm::sys::windows::UTF16ToUTF8;
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2014-11-24 19:05:29 +01:00
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using llvm::sys::path::widenPath;
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2013-09-10 21:45:51 +02:00
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2014-02-23 16:16:03 +01:00
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static bool is_separator(const wchar_t value) {
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switch (value) {
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case L'\\':
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case L'/':
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return true;
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default:
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return false;
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2010-12-06 05:28:42 +01:00
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}
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2010-12-01 20:32:01 +01:00
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}
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2014-11-24 19:05:29 +01:00
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namespace llvm {
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namespace sys {
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namespace path {
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2014-11-13 01:12:14 +01:00
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// Convert a UTF-8 path to UTF-16. Also, if the absolute equivalent of the
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// path is longer than CreateDirectory can tolerate, make it absolute and
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// prefixed by '\\?\'.
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2014-11-24 19:05:29 +01:00
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std::error_code widenPath(const Twine &Path8,
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SmallVectorImpl<wchar_t> &Path16) {
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2014-11-13 01:12:14 +01:00
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const size_t MaxDirLen = MAX_PATH - 12; // Must leave room for 8.3 filename.
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// Several operations would convert Path8 to SmallString; more efficient to
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// do it once up front.
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SmallString<128> Path8Str;
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Path8.toVector(Path8Str);
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// If we made this path absolute, how much longer would it get?
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size_t CurPathLen;
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if (llvm::sys::path::is_absolute(Twine(Path8Str)))
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CurPathLen = 0; // No contribution from current_path needed.
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else {
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CurPathLen = ::GetCurrentDirectoryW(0, NULL);
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if (CurPathLen == 0)
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2015-05-04 06:48:10 +02:00
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return mapWindowsError(::GetLastError());
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2014-11-13 01:12:14 +01:00
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}
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// Would the absolute path be longer than our limit?
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if ((Path8Str.size() + CurPathLen) >= MaxDirLen &&
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!Path8Str.startswith("\\\\?\\")) {
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SmallString<2*MAX_PATH> FullPath("\\\\?\\");
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if (CurPathLen) {
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SmallString<80> CurPath;
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if (std::error_code EC = llvm::sys::fs::current_path(CurPath))
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return EC;
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FullPath.append(CurPath);
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}
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// Traverse the requested path, canonicalizing . and .. as we go (because
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// the \\?\ prefix is documented to treat them as real components).
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// The iterators don't report separators and append() always attaches
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// preferred_separator so we don't need to call native() on the result.
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for (llvm::sys::path::const_iterator I = llvm::sys::path::begin(Path8Str),
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E = llvm::sys::path::end(Path8Str);
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I != E; ++I) {
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if (I->size() == 1 && *I == ".")
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continue;
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if (I->size() == 2 && *I == "..")
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llvm::sys::path::remove_filename(FullPath);
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else
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llvm::sys::path::append(FullPath, *I);
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}
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return UTF8ToUTF16(FullPath, Path16);
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}
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// Just use the caller's original path.
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return UTF8ToUTF16(Path8Str, Path16);
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}
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2014-11-24 19:05:29 +01:00
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} // end namespace path
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2014-11-13 01:12:14 +01:00
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2010-12-07 02:22:31 +01:00
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namespace fs {
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2010-11-29 23:28:51 +01:00
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2013-06-26 07:01:35 +02:00
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std::string getMainExecutable(const char *argv0, void *MainExecAddr) {
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2013-10-07 11:52:36 +02:00
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SmallVector<wchar_t, MAX_PATH> PathName;
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DWORD Size = ::GetModuleFileNameW(NULL, PathName.data(), PathName.capacity());
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// A zero return value indicates a failure other than insufficient space.
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if (Size == 0)
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return "";
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// Insufficient space is determined by a return value equal to the size of
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// the buffer passed in.
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if (Size == PathName.capacity())
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return "";
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// On success, GetModuleFileNameW returns the number of characters written to
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// the buffer not including the NULL terminator.
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PathName.set_size(Size);
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// Convert the result from UTF-16 to UTF-8.
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SmallVector<char, MAX_PATH> PathNameUTF8;
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if (UTF16ToUTF8(PathName.data(), PathName.size(), PathNameUTF8))
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return "";
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return std::string(PathNameUTF8.data());
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2013-06-26 07:01:35 +02:00
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}
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2013-07-29 23:55:38 +02:00
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UniqueID file_status::getUniqueID() const {
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2013-07-29 23:26:49 +02:00
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// The file is uniquely identified by the volume serial number along
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// with the 64-bit file identifier.
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uint64_t FileID = (static_cast<uint64_t>(FileIndexHigh) << 32ULL) |
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static_cast<uint64_t>(FileIndexLow);
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return UniqueID(VolumeSerialNumber, FileID);
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}
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2013-06-26 07:01:35 +02:00
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2016-03-25 08:30:21 +01:00
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TimeValue file_status::getLastAccessedTime() const {
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ULARGE_INTEGER UI;
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UI.LowPart = LastAccessedTimeLow;
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UI.HighPart = LastAccessedTimeHigh;
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TimeValue Ret;
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Ret.fromWin32Time(UI.QuadPart);
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return Ret;
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}
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2013-06-20 23:51:49 +02:00
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TimeValue file_status::getLastModificationTime() const {
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2013-06-20 20:42:04 +02:00
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ULARGE_INTEGER UI;
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UI.LowPart = LastWriteTimeLow;
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UI.HighPart = LastWriteTimeHigh;
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TimeValue Ret;
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Ret.fromWin32Time(UI.QuadPart);
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return Ret;
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}
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2014-06-13 04:36:09 +02:00
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std::error_code current_path(SmallVectorImpl<char> &result) {
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2013-10-07 03:00:07 +02:00
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SmallVector<wchar_t, MAX_PATH> cur_path;
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DWORD len = MAX_PATH;
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2010-11-29 23:28:51 +01:00
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2013-10-07 03:00:07 +02:00
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do {
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2013-10-06 22:44:34 +02:00
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cur_path.reserve(len);
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2013-10-07 03:00:07 +02:00
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len = ::GetCurrentDirectoryW(cur_path.capacity(), cur_path.data());
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// A zero return value indicates a failure other than insufficient space.
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if (len == 0)
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2015-05-04 06:48:10 +02:00
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return mapWindowsError(::GetLastError());
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2013-10-07 03:00:07 +02:00
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// If there's insufficient space, the len returned is larger than the len
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// given.
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} while (len > cur_path.capacity());
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2010-11-29 23:28:51 +01:00
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2013-10-07 03:00:07 +02:00
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// On success, GetCurrentDirectoryW returns the number of characters not
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// including the null-terminator.
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2010-11-29 23:28:51 +01:00
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cur_path.set_size(len);
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2013-08-16 19:53:28 +02:00
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return UTF16ToUTF8(cur_path.begin(), cur_path.size(), result);
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2010-11-29 23:28:51 +01:00
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}
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2015-08-06 23:04:55 +02:00
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std::error_code create_directory(const Twine &path, bool IgnoreExisting,
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perms Perms) {
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2010-12-03 06:42:11 +01:00
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SmallVector<wchar_t, 128> path_utf16;
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2014-11-13 01:12:14 +01:00
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if (std::error_code ec = widenPath(path, path_utf16))
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2010-12-03 06:42:11 +01:00
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return ec;
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if (!::CreateDirectoryW(path_utf16.begin(), NULL)) {
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2014-06-11 05:58:34 +02:00
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DWORD LastError = ::GetLastError();
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if (LastError != ERROR_ALREADY_EXISTS || !IgnoreExisting)
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2015-05-04 06:48:10 +02:00
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return mapWindowsError(LastError);
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2014-02-23 14:56:14 +01:00
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}
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2010-12-03 06:42:11 +01:00
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2014-06-13 04:36:09 +02:00
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return std::error_code();
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2010-12-03 06:42:11 +01:00
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}
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2014-03-11 19:40:24 +01:00
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// We can't use symbolic links for windows.
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2014-06-13 04:36:09 +02:00
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std::error_code create_link(const Twine &to, const Twine &from) {
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2010-12-03 06:58:41 +01:00
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// Convert to utf-16.
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SmallVector<wchar_t, 128> wide_from;
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SmallVector<wchar_t, 128> wide_to;
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2014-11-13 01:12:14 +01:00
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if (std::error_code ec = widenPath(from, wide_from))
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2014-06-13 04:36:09 +02:00
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return ec;
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2014-11-13 01:12:14 +01:00
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if (std::error_code ec = widenPath(to, wide_to))
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2014-06-13 04:36:09 +02:00
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return ec;
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2010-12-03 06:58:41 +01:00
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if (!::CreateHardLinkW(wide_from.begin(), wide_to.begin(), NULL))
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2015-05-04 06:48:10 +02:00
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return mapWindowsError(::GetLastError());
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2010-12-03 06:58:41 +01:00
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2014-06-13 04:36:09 +02:00
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return std::error_code();
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2010-12-03 06:58:41 +01:00
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}
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2014-06-13 04:36:09 +02:00
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std::error_code remove(const Twine &path, bool IgnoreNonExisting) {
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2010-12-03 18:53:43 +01:00
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SmallVector<wchar_t, 128> path_utf16;
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2014-02-23 14:56:14 +01:00
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file_status ST;
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2014-06-13 04:36:09 +02:00
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if (std::error_code EC = status(path, ST)) {
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2014-06-13 19:20:48 +02:00
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if (EC != errc::no_such_file_or_directory || !IgnoreNonExisting)
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2014-02-23 14:56:14 +01:00
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return EC;
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2014-06-13 04:36:09 +02:00
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return std::error_code();
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2013-07-31 02:10:25 +02:00
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}
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2011-01-05 17:39:22 +01:00
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2014-11-13 01:12:14 +01:00
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if (std::error_code ec = widenPath(path, path_utf16))
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2010-12-03 18:53:43 +01:00
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return ec;
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2014-02-23 14:56:14 +01:00
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if (ST.type() == file_type::directory_file) {
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2011-01-05 17:39:22 +01:00
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if (!::RemoveDirectoryW(c_str(path_utf16))) {
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2015-05-04 06:48:10 +02:00
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std::error_code EC = mapWindowsError(::GetLastError());
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2014-06-13 19:20:48 +02:00
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if (EC != errc::no_such_file_or_directory || !IgnoreNonExisting)
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2014-02-23 14:56:14 +01:00
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return EC;
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}
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2014-06-13 04:36:09 +02:00
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return std::error_code();
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2014-02-23 14:56:14 +01:00
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}
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if (!::DeleteFileW(c_str(path_utf16))) {
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2015-05-04 06:48:10 +02:00
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std::error_code EC = mapWindowsError(::GetLastError());
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2014-06-13 19:20:48 +02:00
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if (EC != errc::no_such_file_or_directory || !IgnoreNonExisting)
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2014-02-23 14:56:14 +01:00
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return EC;
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2011-01-05 17:39:22 +01:00
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}
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2014-06-13 04:36:09 +02:00
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return std::error_code();
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2010-12-03 18:53:43 +01:00
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}
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2014-06-13 04:36:09 +02:00
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std::error_code rename(const Twine &from, const Twine &to) {
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2010-12-03 18:53:55 +01:00
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// Convert to utf-16.
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SmallVector<wchar_t, 128> wide_from;
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SmallVector<wchar_t, 128> wide_to;
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2014-11-13 01:12:14 +01:00
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if (std::error_code ec = widenPath(from, wide_from))
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2014-06-13 04:36:09 +02:00
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return ec;
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2014-11-13 01:12:14 +01:00
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if (std::error_code ec = widenPath(to, wide_to))
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2014-06-13 04:36:09 +02:00
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return ec;
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2010-12-03 18:53:55 +01:00
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2014-06-13 04:36:09 +02:00
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std::error_code ec = std::error_code();
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2015-10-12 17:11:47 +02:00
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2016-03-26 00:41:28 +01:00
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// Retry while we see recoverable errors.
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2015-10-12 17:11:47 +02:00
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// System scanners (eg. indexer) might open the source file when it is written
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// and closed.
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2016-03-26 00:41:28 +01:00
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bool TryReplace = true;
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2015-10-12 17:11:47 +02:00
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2016-03-26 00:41:28 +01:00
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for (int i = 0; i < 2000; i++) {
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if (i > 0)
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::Sleep(1);
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if (TryReplace) {
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// Try ReplaceFile first, as it is able to associate a new data stream
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// with the destination even if the destination file is currently open.
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if (::ReplaceFileW(wide_to.data(), wide_from.data(), NULL, 0, NULL, NULL))
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return std::error_code();
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DWORD ReplaceError = ::GetLastError();
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|
|
ec = mapWindowsError(ReplaceError);
|
|
|
|
|
|
|
|
// If ReplaceFileW returned ERROR_UNABLE_TO_MOVE_REPLACEMENT or
|
|
|
|
// ERROR_UNABLE_TO_MOVE_REPLACEMENT_2, retry but only use MoveFileExW().
|
|
|
|
if (ReplaceError == ERROR_UNABLE_TO_MOVE_REPLACEMENT ||
|
|
|
|
ReplaceError == ERROR_UNABLE_TO_MOVE_REPLACEMENT_2) {
|
|
|
|
TryReplace = false;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
// If ReplaceFileW returned ERROR_UNABLE_TO_REMOVE_REPLACED, retry
|
|
|
|
// using ReplaceFileW().
|
|
|
|
if (ReplaceError == ERROR_UNABLE_TO_REMOVE_REPLACED)
|
|
|
|
continue;
|
|
|
|
// We get ERROR_FILE_NOT_FOUND if the destination file is missing.
|
|
|
|
// MoveFileEx can handle this case.
|
|
|
|
if (ReplaceError != ERROR_ACCESS_DENIED &&
|
|
|
|
ReplaceError != ERROR_FILE_NOT_FOUND &&
|
|
|
|
ReplaceError != ERROR_SHARING_VIOLATION)
|
|
|
|
break;
|
|
|
|
}
|
2015-10-12 17:11:47 +02:00
|
|
|
|
2012-05-08 16:31:46 +02:00
|
|
|
if (::MoveFileExW(wide_from.begin(), wide_to.begin(),
|
|
|
|
MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING))
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2015-10-12 17:11:47 +02:00
|
|
|
|
|
|
|
DWORD MoveError = ::GetLastError();
|
|
|
|
ec = mapWindowsError(MoveError);
|
|
|
|
if (MoveError != ERROR_ACCESS_DENIED) break;
|
2012-05-08 16:31:46 +02:00
|
|
|
}
|
2010-12-03 18:53:55 +01:00
|
|
|
|
2012-05-08 16:31:46 +02:00
|
|
|
return ec;
|
2010-12-03 18:53:55 +01:00
|
|
|
}
|
|
|
|
|
2014-12-12 18:55:12 +01:00
|
|
|
std::error_code resize_file(int FD, uint64_t Size) {
|
2010-12-03 19:48:56 +01:00
|
|
|
#ifdef HAVE__CHSIZE_S
|
2014-12-12 18:55:12 +01:00
|
|
|
errno_t error = ::_chsize_s(FD, Size);
|
2010-12-03 19:48:56 +01:00
|
|
|
#else
|
2014-12-12 18:55:12 +01:00
|
|
|
errno_t error = ::_chsize(FD, Size);
|
2010-12-03 19:48:56 +01:00
|
|
|
#endif
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code(error, std::generic_category());
|
2010-12-03 18:54:07 +01:00
|
|
|
}
|
|
|
|
|
2014-09-11 22:30:02 +02:00
|
|
|
std::error_code access(const Twine &Path, AccessMode Mode) {
|
|
|
|
SmallVector<wchar_t, 128> PathUtf16;
|
2010-12-03 02:21:28 +01:00
|
|
|
|
2014-11-13 01:12:14 +01:00
|
|
|
if (std::error_code EC = widenPath(Path, PathUtf16))
|
2014-09-11 22:30:02 +02:00
|
|
|
return EC;
|
2010-12-03 02:21:28 +01:00
|
|
|
|
2014-09-11 22:30:02 +02:00
|
|
|
DWORD Attributes = ::GetFileAttributesW(PathUtf16.begin());
|
2010-12-03 02:21:28 +01:00
|
|
|
|
2014-09-11 22:30:02 +02:00
|
|
|
if (Attributes == INVALID_FILE_ATTRIBUTES) {
|
2010-12-03 02:21:28 +01:00
|
|
|
// See if the file didn't actually exist.
|
2014-06-11 05:58:34 +02:00
|
|
|
DWORD LastError = ::GetLastError();
|
|
|
|
if (LastError != ERROR_FILE_NOT_FOUND &&
|
|
|
|
LastError != ERROR_PATH_NOT_FOUND)
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(LastError);
|
2014-09-11 22:30:02 +02:00
|
|
|
return errc::no_such_file_or_directory;
|
|
|
|
}
|
2013-06-14 21:38:45 +02:00
|
|
|
|
2014-09-11 22:30:02 +02:00
|
|
|
if (Mode == AccessMode::Write && (Attributes & FILE_ATTRIBUTE_READONLY))
|
|
|
|
return errc::permission_denied;
|
2013-06-14 21:38:45 +02:00
|
|
|
|
2014-09-11 22:30:02 +02:00
|
|
|
return std::error_code();
|
2013-06-14 21:38:45 +02:00
|
|
|
}
|
|
|
|
|
2015-09-11 01:28:06 +02:00
|
|
|
bool can_execute(const Twine &Path) {
|
|
|
|
return !access(Path, AccessMode::Execute) ||
|
|
|
|
!access(Path + ".exe", AccessMode::Execute);
|
|
|
|
}
|
|
|
|
|
2011-12-12 07:04:28 +01:00
|
|
|
bool equivalent(file_status A, file_status B) {
|
|
|
|
assert(status_known(A) && status_known(B));
|
2016-03-25 08:30:21 +01:00
|
|
|
return A.FileIndexHigh == B.FileIndexHigh &&
|
|
|
|
A.FileIndexLow == B.FileIndexLow &&
|
|
|
|
A.FileSizeHigh == B.FileSizeHigh &&
|
|
|
|
A.FileSizeLow == B.FileSizeLow &&
|
|
|
|
A.LastAccessedTimeHigh == B.LastAccessedTimeHigh &&
|
|
|
|
A.LastAccessedTimeLow == B.LastAccessedTimeLow &&
|
|
|
|
A.LastWriteTimeHigh == B.LastWriteTimeHigh &&
|
|
|
|
A.LastWriteTimeLow == B.LastWriteTimeLow &&
|
|
|
|
A.VolumeSerialNumber == B.VolumeSerialNumber;
|
2011-12-12 07:04:28 +01:00
|
|
|
}
|
2010-12-03 19:49:13 +01:00
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code equivalent(const Twine &A, const Twine &B, bool &result) {
|
2011-12-12 07:04:28 +01:00
|
|
|
file_status fsA, fsB;
|
2014-06-13 04:36:09 +02:00
|
|
|
if (std::error_code ec = status(A, fsA))
|
|
|
|
return ec;
|
|
|
|
if (std::error_code ec = status(B, fsB))
|
|
|
|
return ec;
|
2011-12-12 07:04:28 +01:00
|
|
|
result = equivalent(fsA, fsB);
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2010-12-04 01:31:48 +01:00
|
|
|
}
|
|
|
|
|
2011-08-20 23:36:38 +02:00
|
|
|
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
|
2015-10-18 07:15:34 +02:00
|
|
|
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" };
|
2011-08-20 23:36:38 +02:00
|
|
|
|
|
|
|
// First, check to see if this is a device namespace, which always
|
|
|
|
// starts with \\.\, since device namespaces are not legal file paths.
|
|
|
|
if (path.startswith("\\\\.\\"))
|
|
|
|
return true;
|
|
|
|
|
|
|
|
// Then compare against the list of ancient reserved names
|
2013-07-15 06:27:47 +02:00
|
|
|
for (size_t i = 0; i < array_lengthof(sReservedNames); ++i) {
|
2011-08-20 23:36:38 +02:00
|
|
|
if (path.equals_lower(sReservedNames[i]))
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// The path isn't what we consider reserved.
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
static std::error_code getStatus(HANDLE FileHandle, file_status &Result) {
|
2013-07-16 05:20:13 +02:00
|
|
|
if (FileHandle == INVALID_HANDLE_VALUE)
|
|
|
|
goto handle_status_error;
|
|
|
|
|
2013-07-18 19:00:54 +02:00
|
|
|
switch (::GetFileType(FileHandle)) {
|
|
|
|
default:
|
2013-07-18 20:42:52 +02:00
|
|
|
llvm_unreachable("Don't know anything about this file type");
|
|
|
|
case FILE_TYPE_UNKNOWN: {
|
|
|
|
DWORD Err = ::GetLastError();
|
|
|
|
if (Err != NO_ERROR)
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(Err);
|
2013-07-18 20:42:52 +02:00
|
|
|
Result = file_status(file_type::type_unknown);
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2013-07-18 20:42:52 +02:00
|
|
|
}
|
2013-07-18 19:00:54 +02:00
|
|
|
case FILE_TYPE_DISK:
|
|
|
|
break;
|
|
|
|
case FILE_TYPE_CHAR:
|
|
|
|
Result = file_status(file_type::character_file);
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2013-07-18 19:00:54 +02:00
|
|
|
case FILE_TYPE_PIPE:
|
|
|
|
Result = file_status(file_type::fifo_file);
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2013-07-18 19:00:54 +02:00
|
|
|
}
|
|
|
|
|
2013-07-16 05:20:13 +02:00
|
|
|
BY_HANDLE_FILE_INFORMATION Info;
|
|
|
|
if (!::GetFileInformationByHandle(FileHandle, &Info))
|
|
|
|
goto handle_status_error;
|
|
|
|
|
2013-07-30 22:25:53 +02:00
|
|
|
{
|
|
|
|
file_type Type = (Info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
|
? file_type::directory_file
|
|
|
|
: file_type::regular_file;
|
|
|
|
Result =
|
2016-03-25 08:30:21 +01:00
|
|
|
file_status(Type, Info.ftLastAccessTime.dwHighDateTime,
|
|
|
|
Info.ftLastAccessTime.dwLowDateTime,
|
|
|
|
Info.ftLastWriteTime.dwHighDateTime,
|
2013-07-30 22:25:53 +02:00
|
|
|
Info.ftLastWriteTime.dwLowDateTime,
|
|
|
|
Info.dwVolumeSerialNumber, Info.nFileSizeHigh,
|
|
|
|
Info.nFileSizeLow, Info.nFileIndexHigh, Info.nFileIndexLow);
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2013-07-30 22:25:53 +02:00
|
|
|
}
|
2013-07-16 05:20:13 +02:00
|
|
|
|
|
|
|
handle_status_error:
|
2014-06-11 05:58:34 +02:00
|
|
|
DWORD LastError = ::GetLastError();
|
|
|
|
if (LastError == ERROR_FILE_NOT_FOUND ||
|
|
|
|
LastError == ERROR_PATH_NOT_FOUND)
|
2013-07-16 05:20:13 +02:00
|
|
|
Result = file_status(file_type::file_not_found);
|
2014-06-11 05:58:34 +02:00
|
|
|
else if (LastError == ERROR_SHARING_VIOLATION)
|
2013-07-16 05:20:13 +02:00
|
|
|
Result = file_status(file_type::type_unknown);
|
2013-07-31 02:10:25 +02:00
|
|
|
else
|
2013-07-16 05:20:13 +02:00
|
|
|
Result = file_status(file_type::status_error);
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(LastError);
|
2013-07-16 05:20:13 +02:00
|
|
|
}
|
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code status(const Twine &path, file_status &result) {
|
2010-12-04 01:32:40 +01:00
|
|
|
SmallString<128> path_storage;
|
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
|
2011-03-16 03:53:32 +01:00
|
|
|
StringRef path8 = path.toStringRef(path_storage);
|
2011-08-20 23:36:38 +02:00
|
|
|
if (isReservedName(path8)) {
|
2011-03-16 03:53:32 +01:00
|
|
|
result = file_status(file_type::character_file);
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2011-03-16 03:53:32 +01:00
|
|
|
}
|
|
|
|
|
2014-11-13 01:12:14 +01:00
|
|
|
if (std::error_code ec = widenPath(path8, path_utf16))
|
2010-12-04 01:32:40 +01:00
|
|
|
return ec;
|
|
|
|
|
|
|
|
DWORD attr = ::GetFileAttributesW(path_utf16.begin());
|
|
|
|
if (attr == INVALID_FILE_ATTRIBUTES)
|
2013-07-16 05:20:13 +02:00
|
|
|
return getStatus(INVALID_HANDLE_VALUE, result);
|
2010-12-04 01:32:40 +01:00
|
|
|
|
|
|
|
// Handle reparse points.
|
|
|
|
if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
|
2011-12-12 07:03:33 +01:00
|
|
|
ScopedFileHandle h(
|
2010-12-04 01:32:40 +01:00
|
|
|
::CreateFileW(path_utf16.begin(),
|
|
|
|
0, // Attributes only.
|
|
|
|
FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
|
|
NULL,
|
|
|
|
OPEN_EXISTING,
|
|
|
|
FILE_FLAG_BACKUP_SEMANTICS,
|
|
|
|
0));
|
2011-12-12 07:03:33 +01:00
|
|
|
if (!h)
|
2013-07-16 05:20:13 +02:00
|
|
|
return getStatus(INVALID_HANDLE_VALUE, result);
|
2010-12-04 01:32:40 +01:00
|
|
|
}
|
|
|
|
|
2013-07-30 22:25:53 +02:00
|
|
|
ScopedFileHandle h(
|
|
|
|
::CreateFileW(path_utf16.begin(), 0, // Attributes only.
|
2011-12-12 07:04:28 +01:00
|
|
|
FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
|
2013-07-30 22:25:53 +02:00
|
|
|
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0));
|
2011-12-12 07:04:28 +01:00
|
|
|
if (!h)
|
2013-07-16 05:20:13 +02:00
|
|
|
return getStatus(INVALID_HANDLE_VALUE, result);
|
2010-12-04 01:32:40 +01:00
|
|
|
|
2013-07-16 05:20:13 +02:00
|
|
|
return getStatus(h, result);
|
|
|
|
}
|
2010-12-04 01:32:40 +01:00
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code status(int FD, file_status &Result) {
|
2013-07-16 05:20:13 +02:00
|
|
|
HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
|
|
|
|
return getStatus(FileHandle, Result);
|
2010-12-04 01:32:40 +01:00
|
|
|
}
|
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code setLastModificationAndAccessTime(int FD, TimeValue Time) {
|
2013-06-20 22:56:14 +02:00
|
|
|
ULARGE_INTEGER UI;
|
|
|
|
UI.QuadPart = Time.toWin32Time();
|
|
|
|
FILETIME FT;
|
|
|
|
FT.dwLowDateTime = UI.LowPart;
|
|
|
|
FT.dwHighDateTime = UI.HighPart;
|
|
|
|
HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
|
|
|
|
if (!SetFileTime(FileHandle, NULL, &FT, &FT))
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(::GetLastError());
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2013-06-20 22:56:14 +02:00
|
|
|
}
|
2012-06-20 02:28:54 +02:00
|
|
|
|
2014-12-11 21:12:55 +01:00
|
|
|
std::error_code mapped_file_region::init(int FD, uint64_t Offset,
|
|
|
|
mapmode Mode) {
|
2012-08-15 21:05:47 +02:00
|
|
|
// Make sure that the requested size fits within SIZE_T.
|
2014-12-16 03:19:26 +01:00
|
|
|
if (Size > std::numeric_limits<SIZE_T>::max())
|
2014-06-13 19:20:48 +02:00
|
|
|
return make_error_code(errc::invalid_argument);
|
2012-08-15 21:05:47 +02:00
|
|
|
|
2014-12-16 04:10:29 +01:00
|
|
|
HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
|
|
|
|
if (FileHandle == INVALID_HANDLE_VALUE)
|
|
|
|
return make_error_code(errc::bad_file_descriptor);
|
|
|
|
|
2012-08-15 21:05:47 +02:00
|
|
|
DWORD flprotect;
|
|
|
|
switch (Mode) {
|
|
|
|
case readonly: flprotect = PAGE_READONLY; break;
|
|
|
|
case readwrite: flprotect = PAGE_READWRITE; break;
|
|
|
|
case priv: flprotect = PAGE_WRITECOPY; break;
|
|
|
|
}
|
|
|
|
|
2014-12-16 03:53:35 +01:00
|
|
|
HANDLE FileMappingHandle =
|
2013-10-07 11:52:36 +02:00
|
|
|
::CreateFileMappingW(FileHandle, 0, flprotect,
|
|
|
|
(Offset + Size) >> 32,
|
|
|
|
(Offset + Size) & 0xffffffff,
|
|
|
|
0);
|
2012-08-15 21:05:47 +02:00
|
|
|
if (FileMappingHandle == NULL) {
|
2015-05-04 06:48:10 +02:00
|
|
|
std::error_code ec = mapWindowsError(GetLastError());
|
2012-08-15 21:05:47 +02:00
|
|
|
return ec;
|
|
|
|
}
|
|
|
|
|
|
|
|
DWORD dwDesiredAccess;
|
|
|
|
switch (Mode) {
|
|
|
|
case readonly: dwDesiredAccess = FILE_MAP_READ; break;
|
|
|
|
case readwrite: dwDesiredAccess = FILE_MAP_WRITE; break;
|
|
|
|
case priv: dwDesiredAccess = FILE_MAP_COPY; break;
|
|
|
|
}
|
|
|
|
Mapping = ::MapViewOfFile(FileMappingHandle,
|
|
|
|
dwDesiredAccess,
|
|
|
|
Offset >> 32,
|
|
|
|
Offset & 0xffffffff,
|
|
|
|
Size);
|
|
|
|
if (Mapping == NULL) {
|
2015-05-04 06:48:10 +02:00
|
|
|
std::error_code ec = mapWindowsError(GetLastError());
|
2012-08-15 21:05:47 +02:00
|
|
|
::CloseHandle(FileMappingHandle);
|
|
|
|
return ec;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (Size == 0) {
|
|
|
|
MEMORY_BASIC_INFORMATION mbi;
|
|
|
|
SIZE_T Result = VirtualQuery(Mapping, &mbi, sizeof(mbi));
|
|
|
|
if (Result == 0) {
|
2015-05-04 06:48:10 +02:00
|
|
|
std::error_code ec = mapWindowsError(GetLastError());
|
2012-08-15 21:05:47 +02:00
|
|
|
::UnmapViewOfFile(Mapping);
|
|
|
|
::CloseHandle(FileMappingHandle);
|
|
|
|
return ec;
|
|
|
|
}
|
|
|
|
Size = mbi.RegionSize;
|
|
|
|
}
|
2013-03-14 01:20:10 +01:00
|
|
|
|
|
|
|
// Close all the handles except for the view. It will keep the other handles
|
|
|
|
// alive.
|
|
|
|
::CloseHandle(FileMappingHandle);
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2012-08-15 21:05:47 +02:00
|
|
|
}
|
|
|
|
|
2014-12-11 21:12:55 +01:00
|
|
|
mapped_file_region::mapped_file_region(int fd, mapmode mode, uint64_t length,
|
|
|
|
uint64_t offset, std::error_code &ec)
|
2014-12-16 04:10:29 +01:00
|
|
|
: Size(length), Mapping() {
|
2014-12-16 03:19:26 +01:00
|
|
|
ec = init(fd, offset, mode);
|
2014-12-16 04:10:29 +01:00
|
|
|
if (ec)
|
2014-12-16 03:53:35 +01:00
|
|
|
Mapping = 0;
|
2012-08-15 21:05:47 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
mapped_file_region::~mapped_file_region() {
|
|
|
|
if (Mapping)
|
|
|
|
::UnmapViewOfFile(Mapping);
|
|
|
|
}
|
|
|
|
|
|
|
|
uint64_t mapped_file_region::size() const {
|
|
|
|
assert(Mapping && "Mapping failed but used anyway!");
|
|
|
|
return Size;
|
|
|
|
}
|
|
|
|
|
|
|
|
char *mapped_file_region::data() const {
|
|
|
|
assert(Mapping && "Mapping failed but used anyway!");
|
|
|
|
return reinterpret_cast<char*>(Mapping);
|
|
|
|
}
|
|
|
|
|
|
|
|
const char *mapped_file_region::const_data() const {
|
|
|
|
assert(Mapping && "Mapping failed but used anyway!");
|
|
|
|
return reinterpret_cast<const char*>(Mapping);
|
|
|
|
}
|
|
|
|
|
|
|
|
int mapped_file_region::alignment() {
|
|
|
|
SYSTEM_INFO SysInfo;
|
|
|
|
::GetSystemInfo(&SysInfo);
|
|
|
|
return SysInfo.dwAllocationGranularity;
|
|
|
|
}
|
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code detail::directory_iterator_construct(detail::DirIterState &it,
|
2011-12-08 23:50:09 +01:00
|
|
|
StringRef path){
|
2010-12-06 05:28:42 +01:00
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
|
2014-11-13 01:12:14 +01:00
|
|
|
if (std::error_code ec = widenPath(path, path_utf16))
|
2010-12-06 05:28:42 +01:00
|
|
|
return ec;
|
|
|
|
|
|
|
|
// Convert path to the format that Windows is happy with.
|
|
|
|
if (path_utf16.size() > 0 &&
|
|
|
|
!is_separator(path_utf16[path.size() - 1]) &&
|
|
|
|
path_utf16[path.size() - 1] != L':') {
|
|
|
|
path_utf16.push_back(L'\\');
|
|
|
|
path_utf16.push_back(L'*');
|
|
|
|
} else {
|
|
|
|
path_utf16.push_back(L'*');
|
|
|
|
}
|
|
|
|
|
|
|
|
// Get the first directory entry.
|
|
|
|
WIN32_FIND_DATAW FirstFind;
|
2010-12-09 18:37:18 +01:00
|
|
|
ScopedFindHandle FindHandle(::FindFirstFileW(c_str(path_utf16), &FirstFind));
|
2010-12-06 05:28:42 +01:00
|
|
|
if (!FindHandle)
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(::GetLastError());
|
2010-12-06 05:28:42 +01:00
|
|
|
|
2011-01-05 17:39:30 +01:00
|
|
|
size_t FilenameLen = ::wcslen(FirstFind.cFileName);
|
|
|
|
while ((FilenameLen == 1 && FirstFind.cFileName[0] == L'.') ||
|
|
|
|
(FilenameLen == 2 && FirstFind.cFileName[0] == L'.' &&
|
|
|
|
FirstFind.cFileName[1] == L'.'))
|
|
|
|
if (!::FindNextFileW(FindHandle, &FirstFind)) {
|
2014-06-11 05:58:34 +02:00
|
|
|
DWORD LastError = ::GetLastError();
|
2011-01-05 17:39:30 +01:00
|
|
|
// Check for end.
|
2014-06-11 05:58:34 +02:00
|
|
|
if (LastError == ERROR_NO_MORE_FILES)
|
2011-12-08 23:50:09 +01:00
|
|
|
return detail::directory_iterator_destruct(it);
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(LastError);
|
2011-01-05 17:39:30 +01:00
|
|
|
} else
|
|
|
|
FilenameLen = ::wcslen(FirstFind.cFileName);
|
|
|
|
|
2010-12-06 05:28:42 +01:00
|
|
|
// Construct the current directory entry.
|
2011-01-05 17:39:30 +01:00
|
|
|
SmallString<128> directory_entry_name_utf8;
|
2014-06-13 04:36:09 +02:00
|
|
|
if (std::error_code ec =
|
|
|
|
UTF16ToUTF8(FirstFind.cFileName, ::wcslen(FirstFind.cFileName),
|
|
|
|
directory_entry_name_utf8))
|
2010-12-06 05:28:42 +01:00
|
|
|
return ec;
|
|
|
|
|
|
|
|
it.IterationHandle = intptr_t(FindHandle.take());
|
2011-01-05 17:39:30 +01:00
|
|
|
SmallString<128> directory_entry_path(path);
|
2015-03-18 11:17:07 +01:00
|
|
|
path::append(directory_entry_path, directory_entry_name_utf8);
|
|
|
|
it.CurrentEntry = directory_entry(directory_entry_path);
|
2010-12-06 05:28:42 +01:00
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2010-12-06 05:28:42 +01:00
|
|
|
}
|
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code detail::directory_iterator_destruct(detail::DirIterState &it) {
|
2010-12-06 05:28:42 +01:00
|
|
|
if (it.IterationHandle != 0)
|
|
|
|
// Closes the handle if it's valid.
|
|
|
|
ScopedFindHandle close(HANDLE(it.IterationHandle));
|
|
|
|
it.IterationHandle = 0;
|
|
|
|
it.CurrentEntry = directory_entry();
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2010-12-06 05:28:42 +01:00
|
|
|
}
|
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code detail::directory_iterator_increment(detail::DirIterState &it) {
|
2010-12-06 05:28:42 +01:00
|
|
|
WIN32_FIND_DATAW FindData;
|
|
|
|
if (!::FindNextFileW(HANDLE(it.IterationHandle), &FindData)) {
|
2014-06-11 05:58:34 +02:00
|
|
|
DWORD LastError = ::GetLastError();
|
2010-12-06 05:28:42 +01:00
|
|
|
// Check for end.
|
2014-06-11 05:58:34 +02:00
|
|
|
if (LastError == ERROR_NO_MORE_FILES)
|
2011-12-08 23:50:09 +01:00
|
|
|
return detail::directory_iterator_destruct(it);
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(LastError);
|
2010-12-06 05:28:42 +01:00
|
|
|
}
|
|
|
|
|
2011-01-05 17:39:30 +01:00
|
|
|
size_t FilenameLen = ::wcslen(FindData.cFileName);
|
|
|
|
if ((FilenameLen == 1 && FindData.cFileName[0] == L'.') ||
|
|
|
|
(FilenameLen == 2 && FindData.cFileName[0] == L'.' &&
|
|
|
|
FindData.cFileName[1] == L'.'))
|
|
|
|
return directory_iterator_increment(it);
|
|
|
|
|
2010-12-06 05:28:42 +01:00
|
|
|
SmallString<128> directory_entry_path_utf8;
|
2014-06-13 04:36:09 +02:00
|
|
|
if (std::error_code ec =
|
|
|
|
UTF16ToUTF8(FindData.cFileName, ::wcslen(FindData.cFileName),
|
|
|
|
directory_entry_path_utf8))
|
2010-12-06 05:28:42 +01:00
|
|
|
return ec;
|
|
|
|
|
|
|
|
it.CurrentEntry.replace_filename(Twine(directory_entry_path_utf8));
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2010-12-06 05:28:42 +01:00
|
|
|
}
|
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code openFileForRead(const Twine &Name, int &ResultFD) {
|
2013-07-17 16:58:25 +02:00
|
|
|
SmallVector<wchar_t, 128> PathUTF16;
|
|
|
|
|
2014-11-13 01:12:14 +01:00
|
|
|
if (std::error_code EC = widenPath(Name, PathUTF16))
|
2013-07-17 16:58:25 +02:00
|
|
|
return EC;
|
2012-06-20 02:28:54 +02:00
|
|
|
|
2015-10-12 17:11:47 +02:00
|
|
|
HANDLE H =
|
|
|
|
::CreateFileW(PathUTF16.begin(), GENERIC_READ,
|
|
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
|
|
|
|
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
2013-07-17 16:58:25 +02:00
|
|
|
if (H == INVALID_HANDLE_VALUE) {
|
2014-06-11 05:58:34 +02:00
|
|
|
DWORD LastError = ::GetLastError();
|
2015-05-04 06:48:10 +02:00
|
|
|
std::error_code EC = mapWindowsError(LastError);
|
2013-07-17 21:58:28 +02:00
|
|
|
// Provide a better error message when trying to open directories.
|
2013-07-17 16:58:25 +02:00
|
|
|
// This only runs if we failed to open the file, so there is probably
|
|
|
|
// no performances issues.
|
2014-06-11 05:58:34 +02:00
|
|
|
if (LastError != ERROR_ACCESS_DENIED)
|
2013-07-17 16:58:25 +02:00
|
|
|
return EC;
|
|
|
|
if (is_directory(Name))
|
2014-06-13 19:20:48 +02:00
|
|
|
return make_error_code(errc::is_a_directory);
|
2013-07-17 16:58:25 +02:00
|
|
|
return EC;
|
|
|
|
}
|
|
|
|
|
|
|
|
int FD = ::_open_osfhandle(intptr_t(H), 0);
|
|
|
|
if (FD == -1) {
|
|
|
|
::CloseHandle(H);
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(ERROR_INVALID_HANDLE);
|
2013-07-17 16:58:25 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
ResultFD = FD;
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2013-07-17 16:58:25 +02:00
|
|
|
}
|
2012-06-20 02:28:54 +02:00
|
|
|
|
2014-06-13 04:36:09 +02:00
|
|
|
std::error_code openFileForWrite(const Twine &Name, int &ResultFD,
|
2013-07-19 17:02:03 +02:00
|
|
|
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!");
|
|
|
|
|
|
|
|
SmallVector<wchar_t, 128> PathUTF16;
|
|
|
|
|
2014-11-13 01:12:14 +01:00
|
|
|
if (std::error_code EC = widenPath(Name, PathUTF16))
|
2013-07-19 17:02:03 +02:00
|
|
|
return EC;
|
|
|
|
|
|
|
|
DWORD CreationDisposition;
|
|
|
|
if (Flags & F_Excl)
|
|
|
|
CreationDisposition = CREATE_NEW;
|
2013-08-22 17:14:45 +02:00
|
|
|
else if (Flags & F_Append)
|
2013-07-19 17:02:03 +02:00
|
|
|
CreationDisposition = OPEN_ALWAYS;
|
|
|
|
else
|
|
|
|
CreationDisposition = CREATE_ALWAYS;
|
|
|
|
|
2014-02-24 04:07:41 +01:00
|
|
|
DWORD Access = GENERIC_WRITE;
|
|
|
|
if (Flags & F_RW)
|
|
|
|
Access |= GENERIC_READ;
|
|
|
|
|
|
|
|
HANDLE H = ::CreateFileW(PathUTF16.begin(), Access,
|
2013-07-19 17:02:03 +02:00
|
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
|
|
|
|
CreationDisposition, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
|
|
|
|
|
|
if (H == INVALID_HANDLE_VALUE) {
|
2014-06-11 05:58:34 +02:00
|
|
|
DWORD LastError = ::GetLastError();
|
2015-05-04 06:48:10 +02:00
|
|
|
std::error_code EC = mapWindowsError(LastError);
|
2013-07-19 17:02:03 +02:00
|
|
|
// 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.
|
2014-06-11 05:58:34 +02:00
|
|
|
if (LastError != ERROR_ACCESS_DENIED)
|
2013-07-19 17:02:03 +02:00
|
|
|
return EC;
|
|
|
|
if (is_directory(Name))
|
2014-06-13 19:20:48 +02:00
|
|
|
return make_error_code(errc::is_a_directory);
|
2013-07-19 17:02:03 +02:00
|
|
|
return EC;
|
|
|
|
}
|
|
|
|
|
|
|
|
int OpenFlags = 0;
|
|
|
|
if (Flags & F_Append)
|
|
|
|
OpenFlags |= _O_APPEND;
|
|
|
|
|
2014-02-24 19:20:12 +01:00
|
|
|
if (Flags & F_Text)
|
2013-07-19 17:02:03 +02:00
|
|
|
OpenFlags |= _O_TEXT;
|
|
|
|
|
|
|
|
int FD = ::_open_osfhandle(intptr_t(H), OpenFlags);
|
|
|
|
if (FD == -1) {
|
|
|
|
::CloseHandle(H);
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(ERROR_INVALID_HANDLE);
|
2013-07-19 17:02:03 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
ResultFD = FD;
|
2014-06-13 04:36:09 +02:00
|
|
|
return std::error_code();
|
2013-07-19 17:02:03 +02:00
|
|
|
}
|
2010-12-01 20:32:01 +01:00
|
|
|
} // end namespace fs
|
2013-09-10 21:45:51 +02:00
|
|
|
|
2014-02-01 00:46:06 +01:00
|
|
|
namespace path {
|
2015-11-02 15:57:24 +01:00
|
|
|
static bool getKnownFolderPath(KNOWNFOLDERID folderId,
|
|
|
|
SmallVectorImpl<char> &result) {
|
2015-10-16 11:08:59 +02:00
|
|
|
wchar_t *path = nullptr;
|
|
|
|
if (::SHGetKnownFolderPath(folderId, KF_FLAG_CREATE, nullptr, &path) != S_OK)
|
2014-02-01 00:46:06 +01:00
|
|
|
return false;
|
|
|
|
|
2015-10-16 11:08:59 +02:00
|
|
|
bool ok = !UTF16ToUTF8(path, ::wcslen(path), result);
|
|
|
|
::CoTaskMemFree(path);
|
|
|
|
return ok;
|
|
|
|
}
|
2015-11-02 10:49:17 +01:00
|
|
|
|
|
|
|
bool getUserCacheDir(SmallVectorImpl<char> &Result) {
|
|
|
|
return getKnownFolderPath(FOLDERID_LocalAppData, Result);
|
|
|
|
}
|
2014-02-01 00:46:06 +01:00
|
|
|
|
2015-10-16 11:08:59 +02:00
|
|
|
bool home_directory(SmallVectorImpl<char> &result) {
|
|
|
|
return getKnownFolderPath(FOLDERID_Profile, result);
|
2014-02-01 00:46:06 +01:00
|
|
|
}
|
|
|
|
|
2015-11-17 17:54:32 +01:00
|
|
|
static bool getTempDirEnvVar(const wchar_t *Var, SmallVectorImpl<char> &Res) {
|
2015-11-07 00:44:23 +01:00
|
|
|
SmallVector<wchar_t, 1024> Buf;
|
|
|
|
size_t Size = 1024;
|
|
|
|
do {
|
|
|
|
Buf.reserve(Size);
|
2015-11-17 17:54:32 +01:00
|
|
|
Size = GetEnvironmentVariableW(Var, Buf.data(), Buf.capacity());
|
2015-11-07 00:44:23 +01:00
|
|
|
if (Size == 0)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
// Try again with larger buffer.
|
|
|
|
} while (Size > Buf.capacity());
|
|
|
|
Buf.set_size(Size);
|
|
|
|
|
2015-11-17 17:54:32 +01:00
|
|
|
return !windows::UTF16ToUTF8(Buf.data(), Size, Res);
|
2015-11-07 00:44:23 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
static bool getTempDirEnvVar(SmallVectorImpl<char> &Res) {
|
2015-11-17 17:54:32 +01:00
|
|
|
const wchar_t *EnvironmentVariables[] = {L"TMP", L"TEMP", L"USERPROFILE"};
|
|
|
|
for (auto *Env : EnvironmentVariables) {
|
2015-11-07 00:44:23 +01:00
|
|
|
if (getTempDirEnvVar(Env, Res))
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2014-08-26 16:47:52 +02:00
|
|
|
void system_temp_directory(bool ErasedOnReboot, SmallVectorImpl<char> &Result) {
|
|
|
|
(void)ErasedOnReboot;
|
2015-11-07 00:44:23 +01:00
|
|
|
Result.clear();
|
2014-08-26 16:47:52 +02:00
|
|
|
|
2015-11-17 17:54:32 +01:00
|
|
|
// Check whether the temporary directory is specified by an environment var.
|
|
|
|
// This matches GetTempPath logic to some degree. GetTempPath is not used
|
|
|
|
// directly as it cannot handle evn var longer than 130 chars on Windows 7
|
|
|
|
// (fixed on Windows 8).
|
|
|
|
if (getTempDirEnvVar(Result)) {
|
|
|
|
assert(!Result.empty() && "Unexpected empty path");
|
|
|
|
native(Result); // Some Unix-like shells use Unix path separator in $TMP.
|
|
|
|
fs::make_absolute(Result); // Make it absolute if not already.
|
2015-11-07 00:44:23 +01:00
|
|
|
return;
|
2015-11-17 17:54:32 +01:00
|
|
|
}
|
2014-08-26 16:47:52 +02:00
|
|
|
|
|
|
|
// Fall back to a system default.
|
2015-11-17 17:54:32 +01:00
|
|
|
const char *DefaultResult = "C:\\Temp";
|
2014-08-26 16:47:52 +02:00
|
|
|
Result.append(DefaultResult, DefaultResult + strlen(DefaultResult));
|
|
|
|
}
|
2014-02-01 00:46:06 +01:00
|
|
|
} // end namespace path
|
|
|
|
|
2013-09-10 21:45:51 +02:00
|
|
|
namespace windows {
|
2014-06-12 16:11:22 +02:00
|
|
|
std::error_code UTF8ToUTF16(llvm::StringRef utf8,
|
2014-06-13 04:36:09 +02:00
|
|
|
llvm::SmallVectorImpl<wchar_t> &utf16) {
|
2014-02-20 21:46:23 +01:00
|
|
|
if (!utf8.empty()) {
|
|
|
|
int len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, utf8.begin(),
|
|
|
|
utf8.size(), utf16.begin(), 0);
|
2013-09-10 21:45:51 +02:00
|
|
|
|
2014-02-20 21:46:23 +01:00
|
|
|
if (len == 0)
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(::GetLastError());
|
2013-09-10 21:45:51 +02:00
|
|
|
|
2014-02-20 21:46:23 +01:00
|
|
|
utf16.reserve(len + 1);
|
|
|
|
utf16.set_size(len);
|
2013-09-10 21:45:51 +02:00
|
|
|
|
2014-02-20 21:46:23 +01:00
|
|
|
len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, utf8.begin(),
|
|
|
|
utf8.size(), utf16.begin(), utf16.size());
|
2013-09-10 21:45:51 +02:00
|
|
|
|
2014-02-20 21:46:23 +01:00
|
|
|
if (len == 0)
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(::GetLastError());
|
2014-02-20 21:46:23 +01:00
|
|
|
}
|
2013-09-10 21:45:51 +02:00
|
|
|
|
|
|
|
// Make utf16 null terminated.
|
|
|
|
utf16.push_back(0);
|
|
|
|
utf16.pop_back();
|
|
|
|
|
2014-06-12 16:11:22 +02:00
|
|
|
return std::error_code();
|
2013-09-10 21:45:51 +02:00
|
|
|
}
|
|
|
|
|
2014-09-03 22:02:00 +02:00
|
|
|
static
|
|
|
|
std::error_code UTF16ToCodePage(unsigned codepage, const wchar_t *utf16,
|
|
|
|
size_t utf16_len,
|
|
|
|
llvm::SmallVectorImpl<char> &utf8) {
|
2014-02-20 21:46:23 +01:00
|
|
|
if (utf16_len) {
|
|
|
|
// Get length.
|
2014-09-03 22:02:00 +02:00
|
|
|
int len = ::WideCharToMultiByte(codepage, 0, utf16, utf16_len, utf8.begin(),
|
2014-02-20 21:46:23 +01:00
|
|
|
0, NULL, NULL);
|
|
|
|
|
|
|
|
if (len == 0)
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(::GetLastError());
|
2014-02-20 21:46:23 +01:00
|
|
|
|
|
|
|
utf8.reserve(len);
|
|
|
|
utf8.set_size(len);
|
|
|
|
|
|
|
|
// Now do the actual conversion.
|
2014-09-03 22:02:00 +02:00
|
|
|
len = ::WideCharToMultiByte(codepage, 0, utf16, utf16_len, utf8.data(),
|
2014-02-20 21:46:23 +01:00
|
|
|
utf8.size(), NULL, NULL);
|
|
|
|
|
|
|
|
if (len == 0)
|
2015-05-04 06:48:10 +02:00
|
|
|
return mapWindowsError(::GetLastError());
|
2014-02-20 21:46:23 +01:00
|
|
|
}
|
2013-09-10 21:45:51 +02:00
|
|
|
|
|
|
|
// Make utf8 null terminated.
|
|
|
|
utf8.push_back(0);
|
|
|
|
utf8.pop_back();
|
|
|
|
|
2014-06-12 16:11:22 +02:00
|
|
|
return std::error_code();
|
2013-09-10 21:45:51 +02:00
|
|
|
}
|
2014-09-03 22:02:00 +02:00
|
|
|
|
|
|
|
std::error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
|
|
|
|
llvm::SmallVectorImpl<char> &utf8) {
|
|
|
|
return UTF16ToCodePage(CP_UTF8, utf16, utf16_len, utf8);
|
|
|
|
}
|
|
|
|
|
|
|
|
std::error_code UTF16ToCurCP(const wchar_t *utf16, size_t utf16_len,
|
|
|
|
llvm::SmallVectorImpl<char> &utf8) {
|
|
|
|
return UTF16ToCodePage(CP_ACP, utf16, utf16_len, utf8);
|
|
|
|
}
|
2013-09-10 21:45:51 +02:00
|
|
|
} // end namespace windows
|
2010-11-29 23:28:51 +01:00
|
|
|
} // end namespace sys
|
|
|
|
} // end namespace llvm
|