process_win.cc revision c7f5f8508d98d5952d42ed7648c2a8f30a4da156 
1// Copyright (c) 2006-2008 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 "base/process.h"
6#include "base/logging.h"
7#include "base/process_util.h"
8#include "base/scoped_ptr.h"
9
10namespace base {
11
12void Process::Close() {
13  if (!process_)
14    return;
15  ::CloseHandle(process_);
16  process_ = NULL;
17}
18
19void Process::Terminate(int result_code) {
20  if (!process_)
21    return;
22  ::TerminateProcess(process_, result_code);
23}
24
25bool Process::IsProcessBackgrounded() const {
26  if (!process_)
27    return false;  // Failure case.
28  DWORD priority = GetPriority();
29  if (priority == 0)
30    return false;  // Failure case.
31  return priority == BELOW_NORMAL_PRIORITY_CLASS;
32}
33
34bool Process::SetProcessBackgrounded(bool value) {
35  if (!process_)
36    return false;
37  DWORD priority = value ? BELOW_NORMAL_PRIORITY_CLASS : NORMAL_PRIORITY_CLASS;
38  return (SetPriorityClass(process_, priority) != 0);
39}
40
41ProcessId Process::pid() const {
42  if (process_ == 0)
43    return 0;
44
45  return GetProcId(process_);
46}
47
48bool Process::is_current() const {
49  return process_ == GetCurrentProcess();
50}
51
52// static
53Process Process::Current() {
54  return Process(GetCurrentProcess());
55}
56
57int Process::GetPriority() const {
58  DCHECK(process_);
59  return GetPriorityClass(process_);
60}
61
62}  // namespace base
63