wchar_t * getCurrentDir() {
	// current directory 를 구한다.
	wchar_t *buf = NULL;
	uint32_t buflen = 0;
	buflen = GetCurrentDirectoryW(buflen, buf); // 디렉토리 문자열의 길이를 모르니 0이나 -1을 넣으면 return해줌
	if (0 == buflen)
	{
		print("err, GetCurrentDirectoryW() failed. gle = 0x%08x", GetLastError());
		return false;
	}

	buf = (PWSTR)malloc(sizeof(WCHAR) * buflen);
	if (0 == GetCurrentDirectoryW(buflen, buf))
	{
		print("err, GetCurrentDirectoryW() failed. gle = 0x%08x", GetLastError());
		free(buf);
		return false;
	}
	return buf;
}

	gs2d::str_type::string GetCurrentDirectoryPath()
	{
		gs2d::str_type::char_t currentDirectoryBuffer[65536];

		#ifdef GS2D_STR_TYPE_WCHAR
		GetCurrentDirectoryW(65535, currentDirectoryBuffer);
		#else
		GetCurrentDirectoryA(65535, currentDirectoryBuffer);
		#endif

		return AddLastSlash(currentDirectoryBuffer);
	}

tb_size_t tb_directory_curt(tb_char_t* path, tb_size_t maxn)
{
    // check
    tb_assert_and_check_return_val(path && maxn > 4, 0);

    // the current directory
    tb_wchar_t  curt[TB_PATH_MAXN] = {0};
    GetCurrentDirectoryW(TB_PATH_MAXN, curt);

    // wtoa
    return tb_wtoa(path, curt, maxn);
}

	void ExitAndRestart() {
		// This preserves arguments (for example, config file) and working directory.

		wchar_t moduleFilename[MAX_PATH];
		wchar_t workingDirectory[MAX_PATH];
		GetCurrentDirectoryW(MAX_PATH, workingDirectory);
		const wchar_t *cmdline = RemoveExecutableFromCommandLine(GetCommandLineW());
		GetModuleFileName(GetModuleHandle(NULL), moduleFilename, MAX_PATH);
		ShellExecute(NULL, NULL, moduleFilename, cmdline, workingDirectory, SW_SHOW);

		ExitProcess(0);
	}

/*
 * Arguments: [path (string)]
 * Returns: [boolean | pathname (string)]
 */
static int
sys_curdir (lua_State *L)
{
  const char *path = lua_tostring(L, 1);

  if (path) {
    int res;
#ifndef _WIN32
    res = chdir(path);
#else
    {
      void *os_path = utf8_to_filename(path);
      if (!os_path)
        return sys_seterror(L, ERROR_NOT_ENOUGH_MEMORY);

      res = is_WinNT
       ? !SetCurrentDirectoryW(os_path)
       : !SetCurrentDirectoryA(os_path);

      free(os_path);
    }
#endif
    if (!res) {
      lua_pushboolean(L, 1);
      return 1;
    }
  } else {
#ifndef _WIN32
    char dir[MAX_PATHNAME];

    if (getcwd(dir, MAX_PATHNAME)) {
      lua_pushstring(L, dir);
      return 1;
    }
#else
    WCHAR os_dir[MAX_PATHNAME];
    const int n = is_WinNT
     ? GetCurrentDirectoryW(MAX_PATHNAME, os_dir)
     : GetCurrentDirectoryA(MAX_PATHNAME, (char *) os_dir);

    if (n != 0 && n < MAX_PATHNAME) {
      void *dir = filename_to_utf8(os_dir);
      if (!dir)
        return sys_seterror(L, ERROR_NOT_ENOUGH_MEMORY);

      lua_pushstring(L, dir);
      free(dir);
      return 1;
    }
#endif
  }
  return sys_seterror(L, 0);
}

bool set_working_directory(string dname) {
  tstring tstr_dname = widen(dname);
  replace(tstr_dname.begin(), tstr_dname.end(), '/', '\\');
  if (SetCurrentDirectoryW(tstr_dname.c_str()) != 0) {
    WCHAR wstr_buffer[MAX_PATH + 1];
    if (GetCurrentDirectoryW(MAX_PATH + 1, wstr_buffer) != 0) {
      working_directory = add_slash(shorten(wstr_buffer));
      return true;
    }
  }

  return false;
}

/*
** Get the current working directory.
**
** On windows, the name is converted from unicode to UTF8 and all '\\'
** characters are converted to '/'.  No conversions are needed on
** unix.
*/
void win32_getcwd(char *zBuf, int nBuf){
  int i;
  char *zUtf8;
  wchar_t *zWide = fossil_malloc( sizeof(wchar_t)*nBuf );
  if( GetCurrentDirectoryW(nBuf, zWide)==0 ){
    fossil_fatal("cannot find current working directory.");
  }
  zUtf8 = fossil_filename_to_utf8(zWide);
  fossil_free(zWide);
  for(i=0; zUtf8[i]; i++) if( zUtf8[i]=='\\' ) zUtf8[i] = '/';
  strncpy(zBuf, zUtf8, nBuf);
  fossil_filename_free(zUtf8);
}

Directory::Directory() :
	mPath(L""),
	mName(L""),
	mAttributes(0)
{
	wchar_t Path[MAX_PATH] = {L'\0'};
	GetCurrentDirectoryW(MAX_PATH, Path);

	mAttributes = GetFileAttributesW(Path);

	mPath = Path;
	mName = Path;
};

/**
* @brief	retrieve currnt directory
*          caller must free returned memroy pointer.
* @param
* @see
* @remarks
* @code
* @endcode
* @return
**/
wchar_t* get_current_directory(void)
{
	wchar_t *buf = NULL;
	uint32_t buflen = 0;
	buflen = GetCurrentDirectoryW(buflen, buf);
	if (0 == buflen)
	{
		print("err ] GetCurrentDirectoryW() failed. gle = 0x%08x", GetLastError());
		return NULL;
	}

	buf = (PWSTR)malloc(sizeof(WCHAR)* buflen);
	if (0 == GetCurrentDirectoryW(buflen, buf))
	{
		print("err ] GetCurrentDirectoryW() failed. gle = 0x%08x", GetLastError());
		free(buf);
		return NULL;
	}

	return buf;

}

QString Application::CurrentWorkingDirectory()
{
#ifdef _WINDOWS
    WCHAR str[MAX_PATH+1] = {};
    GetCurrentDirectoryW(MAX_PATH, str);
    QString qstr = WStringToQString(str);
#else
    QString qstr =  QDir::currentPath();
#endif
    if (!qstr.endsWith(QDir::separator()))
        qstr += QDir::separator();
    return qstr;
}

BOOL ReadFromFile()
{
	IFileOpenDialog *pDlg;
	COMDLG_FILTERSPEC FileTypes[] = {
		{ L"PS2 MemoryCard files", L"*.ps2" },
		{ L"All files", L"*.*" }
	};

	HRESULT hr = CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pDlg));
	WCHAR cPath[MAX_PATH] = L"";
	GetCurrentDirectoryW(sizeof(cPath) / sizeof(cPath[0]), cPath);
	IShellItem *psiFolder, *psiParent;
	SHCreateItemFromParsingName(cPath, NULL, IID_PPV_ARGS(&psiFolder));
	psiFolder->GetParent(&psiParent);

	//初期フォルダの指定
	pDlg->SetFolder(psiFolder);
	//フィルターの指定
	pDlg->SetFileTypes(_countof(FileTypes), FileTypes);
	//ダイアログ表示
	hr = pDlg->Show(NULL);

	//ファイル名
	LPOLESTR pwsz = NULL;
	if (SUCCEEDED(hr))
	{
		IShellItem *pItem;
		hr = pDlg->GetResult(&pItem);
		if (SUCCEEDED(hr))
		{

			hr = pItem->GetDisplayName(SIGDN_FILESYSPATH, &pwsz);
			if (SUCCEEDED(hr))
			{
				HANDLE hFile;
				hFile = CreateFile(pwsz, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
				if (hFile)
				{
					DWORD BytesRead;
					BOOL b = ReadFile(hFile, &(byteMemDat.Byte), sizeof(byteMemDat), &BytesRead, NULL);
					if (BytesRead)
					{
						CloseHandle(hFile);
					}
				}
			}
		}
	}
	UpdateDataList(&byteMemDat);
	return TRUE;
}

/**
 * Loads the plugin into memory using NSPR's shared-library loading
 * mechanism. Handles platform differences in loading shared libraries.
 */
nsresult nsPluginFile::LoadPlugin(PRLibrary **outLibrary)
{
  nsCOMPtr<nsILocalFile> plugin = do_QueryInterface(mPlugin);

  if (!plugin)
    return NS_ERROR_NULL_POINTER;

  PRBool protectCurrentDirectory = PR_TRUE;

  nsAutoString pluginFolderPath;
  plugin->GetPath(pluginFolderPath);

  PRInt32 idx = pluginFolderPath.RFindChar('\\');
  if (kNotFound == idx)
    return NS_ERROR_FILE_INVALID_PATH;

  if (Substring(pluginFolderPath, idx).LowerCaseEqualsLiteral("\\np32dsw.dll")) {
    protectCurrentDirectory = PR_FALSE;
  }

  pluginFolderPath.SetLength(idx);

  BOOL restoreOrigDir = FALSE;
  WCHAR aOrigDir[MAX_PATH + 1];
  DWORD dwCheck = GetCurrentDirectoryW(MAX_PATH, aOrigDir);
  NS_ASSERTION(dwCheck <= MAX_PATH + 1, "Error in Loading plugin");

  if (dwCheck <= MAX_PATH + 1) {
    restoreOrigDir = SetCurrentDirectoryW(pluginFolderPath.get());
    NS_ASSERTION(restoreOrigDir, "Error in Loading plugin");
  }

  if (protectCurrentDirectory) {
    mozilla::NS_SetDllDirectory(NULL);
  }

  nsresult rv = plugin->Load(outLibrary);
  if (NS_FAILED(rv))
      *outLibrary = NULL;

  if (protectCurrentDirectory) {
    mozilla::NS_SetDllDirectory(L"");
  }

  if (restoreOrigDir) {
    BOOL bCheck = SetCurrentDirectoryW(aOrigDir);
    NS_ASSERTION(bCheck, "Error in Loading plugin");
  }

  return rv;
}

SString SharedUtil::GetSystemCurrentDirectory ( void )
{
#ifdef WIN32
    wchar_t szResult [ 1024 ] = L"";
    GetCurrentDirectoryW ( NUMELMS ( szResult ), szResult );
    if ( IsShortPathName( szResult ) )
        return GetSystemLongPathName( ToUTF8( szResult ) );
    return ToUTF8( szResult );
#else
    char szBuffer[ MAX_PATH ];
    getcwd ( szBuffer, MAX_PATH - 1 );
    return szBuffer;
#endif
}

StString StProcess::getWorkingFolder() {
    StString aWorkingFolder;
#ifdef _WIN32
    // determine buffer length (in characters, including NULL-terminated symbol)
    DWORD aBuffLen = GetCurrentDirectoryW(0, NULL);
    stUtfWide_t* aBuff = new stUtfWide_t[size_t(aBuffLen + 1)];
    // take current directory
    GetCurrentDirectoryW(aBuffLen, aBuff);
    aBuff[aBuffLen - 1] = (aBuff[aBuffLen - 2] == L'\\') ? L'\0' : L'\\';
    aBuff[aBuffLen]     = L'\0';
    aWorkingFolder = StString(aBuff);
    delete[] aBuff;
#else
    char* aPath = getcwd(NULL, 0);
    if(aPath == NULL) {
        // allocation error - should never happens
        return StString();
    }
    aWorkingFolder = StString(aPath) + SYS_FS_SPLITTER;
    free(aPath); // free alien buffer
#endif
    return aWorkingFolder;
}

static int uv_split_path(const WCHAR* filename, WCHAR** dir,
    WCHAR** file) {
  size_t len, i;

  if (filename == NULL) {
    if (dir != NULL)
      *dir = NULL;
    *file = NULL;
    return 0;
  }

  len = wcslen(filename);
  i = len;
  while (i > 0 && filename[--i] != '\\' && filename[i] != '/');

  if (i == 0) {
    if (dir) {
      *dir = (WCHAR*)uv__malloc((MAX_PATH + 1) * sizeof(WCHAR));
      if (!*dir) {
        uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
      }

      if (!GetCurrentDirectoryW(MAX_PATH, *dir)) {
        uv__free(*dir);
        *dir = NULL;
        return -1;
      }
    }

    *file = wcsdup(filename);
  } else {
    if (dir) {
      *dir = (WCHAR*)uv__malloc((i + 2) * sizeof(WCHAR));
      if (!*dir) {
        uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
      }
      wcsncpy(*dir, filename, i + 1);
      (*dir)[i + 1] = L'\0';
    }

    *file = (WCHAR*)uv__malloc((len - i) * sizeof(WCHAR));
    if (!*file) {
      uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
    }
    wcsncpy(*file, filename + i + 1, len - i - 1);
    (*file)[len - i - 1] = L'\0';
  }

  return 0;
}

Error DirAccessWindows::change_dir(String p_dir) {

	GLOBAL_LOCK_FUNCTION

	p_dir = fix_path(p_dir);

	wchar_t real_current_dir_name[2048];
	GetCurrentDirectoryW(2048, real_current_dir_name);
	String prev_dir = real_current_dir_name;

	SetCurrentDirectoryW(current_dir.c_str());
	bool worked = (SetCurrentDirectoryW(p_dir.c_str()) != 0);

	String base = _get_root_path();
	if (base != "") {

		GetCurrentDirectoryW(2048, real_current_dir_name);
		String new_dir;
		new_dir = String(real_current_dir_name).replace("\\", "/");
		if (!new_dir.begins_with(base)) {
			worked = false;
		}
	}

	if (worked) {

		GetCurrentDirectoryW(2048, real_current_dir_name);
		current_dir = real_current_dir_name; // TODO, utf8 parser
		current_dir = current_dir.replace("\\", "/");

	} //else {

	SetCurrentDirectoryW(prev_dir.c_str());
	//}

	return worked ? OK : ERR_INVALID_PARAMETER;
}

BOOL DIALOG_FileSaveAs(VOID)
{
    OPENFILENAMEW saveas;
    WCHAR szPath[MAX_PATH];
    WCHAR szDir[MAX_PATH];
    static const WCHAR szDefaultExt[] = { 't','x','t',0 };
    static const WCHAR txt_files[] = { '*','.','t','x','t',0 };

    ZeroMemory(&saveas, sizeof(saveas));

    GetCurrentDirectoryW(ARRAY_SIZE(szDir), szDir);
    lstrcpyW(szPath, txt_files);

    saveas.lStructSize       = sizeof(OPENFILENAMEW);
    saveas.hwndOwner         = Globals.hMainWnd;
    saveas.hInstance         = Globals.hInstance;
    saveas.lpstrFilter       = Globals.szFilter;
    saveas.lpstrFile         = szPath;
    saveas.nMaxFile          = ARRAY_SIZE(szPath);
    saveas.lpstrInitialDir   = szDir;
    saveas.Flags          = OFN_ENABLETEMPLATE | OFN_ENABLEHOOK | OFN_EXPLORER |
                            OFN_PATHMUSTEXIST | OFN_OVERWRITEPROMPT |
                            OFN_HIDEREADONLY | OFN_ENABLESIZING;
    saveas.lpfnHook          = OfnHookProc;
    saveas.lpTemplateName    = MAKEINTRESOURCEW(IDD_OFN_TEMPLATE);
    saveas.lpstrDefExt       = szDefaultExt;

    /* Preset encoding to what file was opened/saved last with. */
    Globals.encOfnCombo = Globals.encFile;
    Globals.bOfnIsOpenDialog = FALSE;

retry:
    if (!GetSaveFileNameW(&saveas))
        return FALSE;

    switch (DoSaveFile(szPath, Globals.encOfnCombo))
    {
        case SAVED_OK:
            SetFileNameAndEncoding(szPath, Globals.encOfnCombo);
            UpdateWindowCaption();
            return TRUE;

        case SHOW_SAVEAS_DIALOG:
            goto retry;

        default:
            return FALSE;
    }
}

tb_size_t tb_directory_current(tb_char_t* path, tb_size_t maxn)
{
    // check
    tb_assert_and_check_return_val(path && maxn > 4, 0);

    // the current directory
    tb_wchar_t current[TB_PATH_MAXN] = {0};
    GetCurrentDirectoryW(TB_PATH_MAXN, current);

    // wtoa
    tb_size_t size = tb_wtoa(path, current, maxn);

    // ok?
    return size != -1? size : 0;
}

static
VOID
TestGetCurrentDirectoryW(VOID)
{
    WCHAR Buffer[MAX_PATH];
    DWORD Length;
    BOOL Ret;
    BOOLEAN Okay;

    Ret = SetCurrentDirectoryW(L"C:\\");
    ok(Ret == TRUE, "SetCurrentDirectory failed with %lu\n", GetLastError());

    Length = GetCurrentDirectoryW(0, NULL);
    ok(Length == sizeof("C:\\"), "Length = %lu\n", Length);

    RtlFillMemory(Buffer, sizeof(Buffer), 0x55);
    Length = GetCurrentDirectoryW(sizeof(Buffer) / sizeof(WCHAR), Buffer);
    ok(Length == sizeof("C:\\") - 1, "Length = %lu\n", Length);
    Okay = CheckStringBufferW(Buffer, sizeof(Buffer), L"C:\\", 0x55);
    ok(Okay, "CheckStringBufferW failed\n");

    RtlFillMemory(Buffer, sizeof(Buffer), 0x55);
    Length = GetCurrentDirectoryW(0, Buffer);
    ok(Length == sizeof("C:\\"), "Length = %lu\n", Length);
    Okay = CheckBuffer(Buffer, sizeof(Buffer), 0x55);
    ok(Okay, "CheckBuffer failed\n");

    RtlFillMemory(Buffer, sizeof(Buffer), 0x55);
    Length = GetCurrentDirectoryW(1, Buffer);
    ok(Length == sizeof("C:\\"), "Length = %lu\n", Length);
    Okay = CheckBuffer(Buffer, sizeof(Buffer), 0x55);
    ok(Okay, "CheckBuffer failed\n");

    RtlFillMemory(Buffer, sizeof(Buffer), 0x55);
    Length = GetCurrentDirectoryW(2, Buffer);
    ok(Length == sizeof("C:\\"), "Length = %lu\n", Length);
    Okay = CheckBuffer(Buffer, sizeof(Buffer), 0x55);
    ok(Okay, "CheckBuffer failed\n");

    RtlFillMemory(Buffer, sizeof(Buffer), 0x55);
    Length = GetCurrentDirectoryW(3, Buffer);
    ok(Length == sizeof("C:\\"), "Length = %lu\n", Length);
    Okay = CheckBuffer(Buffer, sizeof(Buffer), 0x55);
    ok(Okay, "CheckBuffer failed\n");

    RtlFillMemory(Buffer, sizeof(Buffer), 0x55);
    Length = GetCurrentDirectoryW(4, Buffer);
    ok(Length == sizeof("C:\\") - 1, "Length = %lu\n", Length);
    Okay = CheckStringBufferW(Buffer, sizeof(Buffer), L"C:\\", 0x55);
    ok(Okay, "CheckStringBufferW failed\n");
}

	int FileUtils::RunAndWait(std::string &path, std::vector<std::string> &args)
	{
		std::string cmdLine = "\"" + path + "\"";
		for (size_t i = 0; i < args.size(); i++)
		{
			cmdLine += " \"" + args.at(i) + "\"";
		}

#ifdef DEBUG
		std::cout << "running: " << cmdLine << std::endl;
#endif

		STARTUPINFO startupInfo;
		ZeroMemory(&startupInfo, sizeof(STARTUPINFO));
		PROCESS_INFORMATION processInfo;
		ZeroMemory(&processInfo, sizeof(PROCESS_INFORMATION));
		startupInfo.cb = sizeof(STARTUPINFO);

		// Get the current working directory
		wchar_t cwd[MAX_PATH];
		DWORD size = GetCurrentDirectoryW(MAX_PATH, (wchar_t*) cwd);
		std::wstring wideCmdLine = UTILS_NS::UTF8ToWide(cmdLine);

		DWORD rc = -1;
		if (CreateProcessW(
			NULL,                           // No module name (use command line)
			(wchar_t*) wideCmdLine.c_str(), // Command line
			NULL,                           // Process handle not inheritable
			NULL,                           // Thread handle not inheritable
			FALSE,                          // Set handle inheritance to FALSE
			0,                              // No creation flags
			NULL,                           // Use parent's environment block
			(wchar_t*) cwd,                 // Use parent's starting directory
			&startupInfo,                     // Pointer to STARTUPINFO structure
			&processInfo))                  // Pointer to PROCESS_INFORMATION structure
		{
			// Wait until child process exits.
			WaitForSingleObject(processInfo.hProcess, INFINITE);

			// set the exit code
			GetExitCodeProcess(processInfo.hProcess, &rc);

			// Close process and thread handles.
			CloseHandle(processInfo.hProcess);
			CloseHandle(processInfo.hThread);
		}
		return rc;
	}