base/process_win.cc

   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
  10 namespace base {
  11
  12 void Process::Close() {
  13   if (!process_)
  14     return;
  15   ::CloseHandle(process_);
  16   process_ = NULL;
  17 }
  18
  19 void Process::Terminate(int result_code) {
  20   if (!process_)
  21     return;
  22   ::TerminateProcess(process_, result_code);
  23 }
  24
  25 bool 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
  34 bool 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
  41 ProcessId Process::pid() const {
  42   if (process_ == 0)
  43     return 0;
  44
  45   return GetProcId(process_);
  46 }
  47
  48 bool Process::is_current() const {
  49   return process_ == GetCurrentProcess();
  50 }
  51
  52 // static
  53 Process Process::Current() {
  54   return Process(GetCurrentProcess());
  55 }
  56
  57 int Process::GetPriority() const {
  58   DCHECK(process_);
  59   return GetPriorityClass(process_);
  60 }
  61
  62 }  // namespace base