chrome/browser/task_manager/os_resource_win.cc

   1 // Copyright 2013 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/task_manager/os_resource_win.h"
   6
   7 namespace task_manager {
   8
   9 void GetWinGDIHandles(base::ProcessHandle process,
  10                       size_t* current,
  11                       size_t* peak) {
  12   *current = 0;
  13   *peak = 0;
  14   // Get a handle to |process| that has PROCESS_QUERY_INFORMATION rights.
  15   HANDLE current_process = GetCurrentProcess();
  16   HANDLE process_with_query_rights;
  17   if (DuplicateHandle(current_process, process, current_process,
  18                       &process_with_query_rights, PROCESS_QUERY_INFORMATION,
  19                       false, 0)) {
  20     *current = GetGuiResources(process_with_query_rights, GR_GDIOBJECTS);
  21     *peak = GetGuiResources(process_with_query_rights, GR_GDIOBJECTS_PEAK);
  22     CloseHandle(process_with_query_rights);
  23   }
  24 }
  25
  26 void GetWinUSERHandles(base::ProcessHandle process,
  27                        size_t* current,
  28                        size_t* peak) {
  29   *current = 0;
  30   *peak = 0;
  31   // Get a handle to |process| that has PROCESS_QUERY_INFORMATION rights.
  32   HANDLE current_process = GetCurrentProcess();
  33   HANDLE process_with_query_rights;
  34   if (DuplicateHandle(current_process, process, current_process,
  35                       &process_with_query_rights, PROCESS_QUERY_INFORMATION,
  36                       false, 0)) {
  37     *current = GetGuiResources(process_with_query_rights, GR_USEROBJECTS);
  38     *peak = GetGuiResources(process_with_query_rights, GR_USEROBJECTS_PEAK);
  39     CloseHandle(process_with_query_rights);
  40   }
  41 }
  42
  43 }  // namespace task_manager