michael@0: // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #include "base/process.h"
michael@0: #include "base/logging.h"
michael@0: #include "base/process_util.h"
michael@0: #include "base/scoped_ptr.h"
michael@0: 
michael@0: namespace base {
michael@0: 
michael@0: void Process::Close() {
michael@0:   if (!process_)
michael@0:     return;
michael@0:   CloseProcessHandle(process_);
michael@0:   process_ = NULL;
michael@0: }
michael@0: 
michael@0: void Process::Terminate(int result_code) {
michael@0:   if (!process_)
michael@0:     return;
michael@0:   ::TerminateProcess(process_, result_code);
michael@0: }
michael@0: 
michael@0: bool Process::IsProcessBackgrounded() const {
michael@0:   DCHECK(process_);
michael@0:   DWORD priority = GetPriorityClass(process_);
michael@0:   if (priority == 0)
michael@0:     return false;  // Failure case.
michael@0:   return priority == BELOW_NORMAL_PRIORITY_CLASS;
michael@0: }
michael@0: 
michael@0: bool Process::SetProcessBackgrounded(bool value) {
michael@0:   DCHECK(process_);
michael@0:   DWORD priority = value ? BELOW_NORMAL_PRIORITY_CLASS : NORMAL_PRIORITY_CLASS;
michael@0:   return (SetPriorityClass(process_, priority) != 0);
michael@0: }
michael@0: 
michael@0: bool Process::EmptyWorkingSet() {
michael@0:   if (!process_)
michael@0:     return false;
michael@0: 
michael@0:   BOOL rv = SetProcessWorkingSetSize(process_, -1, -1);
michael@0:   return rv == TRUE;
michael@0: }
michael@0: 
michael@0: ProcessId Process::pid() const {
michael@0:   if (process_ == 0)
michael@0:     return 0;
michael@0: 
michael@0:   return GetProcId(process_);
michael@0: }
michael@0: 
michael@0: bool Process::is_current() const {
michael@0:   return process_ == GetCurrentProcess();
michael@0: }
michael@0: 
michael@0: // static
michael@0: Process Process::Current() {
michael@0:   return Process(GetCurrentProcess());
michael@0: }
michael@0: 
michael@0: }  // namespace base