1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/browser_util_win.h"
6
7#include <windows.h>
8
9#include <algorithm>
10#include <string>
11
12#include "base/base_paths.h"
13#include "base/files/file_path.h"
14#include "base/path_service.h"
15
16namespace browser_util {
17
18bool IsBrowserAlreadyRunning() {
19  static HANDLE handle = NULL;
20  base::FilePath exe_path;
21  PathService::Get(base::FILE_EXE, &exe_path);
22  std::wstring exe = exe_path.value();
23  std::replace(exe.begin(), exe.end(), '\\', '!');
24  std::transform(exe.begin(), exe.end(), exe.begin(), tolower);
25  exe = L"Global\\" + exe;
26  if (handle != NULL)
27    CloseHandle(handle);
28  handle = CreateEvent(NULL, TRUE, TRUE, exe.c_str());
29  int error = GetLastError();
30  return (error == ERROR_ALREADY_EXISTS || error == ERROR_ACCESS_DENIED);
31}
32
33}  // namespace browser_util
34