true, 0, FS_Dir);
}
-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!");
-
- int OpenFlags = O_WRONLY | O_CREAT;
-
-#ifdef O_BINARY
- if (Flags & F_Binary)
- OpenFlags |= O_BINARY;
-#endif
-
- if (Flags & F_Append)
- OpenFlags |= O_APPEND;
- else
- OpenFlags |= O_TRUNC;
-
- if (Flags & F_Excl)
- OpenFlags |= O_EXCL;
-
- SmallString<128> Storage;
- StringRef P = Name.toNullTerminatedStringRef(Storage);
- while ((ResultFD = open(P.begin(), OpenFlags, Mode)) < 0) {
- if (errno != EINTR)
- return error_code(errno, system_category());
- }
- return error_code::success();
-}
-
error_code make_absolute(SmallVectorImpl<char> &path) {
StringRef p(path.data(), path.size());
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!");
+
+ int OpenFlags = O_WRONLY | O_CREAT;
+
+ if (Flags & F_Append)
+ OpenFlags |= O_APPEND;
+ else
+ OpenFlags |= O_TRUNC;
+
+ if (Flags & F_Excl)
+ OpenFlags |= O_EXCL;
+
+ SmallString<128> Storage;
+ StringRef P = Name.toNullTerminatedStringRef(Storage);
+ while ((ResultFD = open(P.begin(), OpenFlags, Mode)) < 0) {
+ if (errno != EINTR)
+ return error_code(errno, system_category());
+ }
+ return error_code::success();
+}
+
} // end namespace fs
} // end namespace sys
} // end namespace llvm
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
} // end namespace sys
} // end namespace llvm