chrome/browser/browser_util_win.cc

   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
  16 namespace browser_util {
  17
  18 bool 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