content/child/scoped_child_process_reference.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 "content/child/scoped_child_process_reference.h"
   6
   7 #include "base/bind.h"
   8 #include "base/location.h"
   9 #include "base/single_thread_task_runner.h"
  10 #include "base/thread_task_runner_handle.h"
  11 #include "base/time/time.h"
  12 #include "content/child/child_process.h"
  13
  14 namespace content {
  15
  16 ScopedChildProcessReference::ScopedChildProcessReference()
  17     : has_reference_(true) {
  18   ChildProcess::current()->AddRefProcess();
  19 }
  20
  21 ScopedChildProcessReference::~ScopedChildProcessReference() {
  22   if (has_reference_)
  23     ChildProcess::current()->ReleaseProcess();
  24 }
  25
  26 void ScopedChildProcessReference::ReleaseWithDelay(
  27     const base::TimeDelta& delay) {
  28   DCHECK(has_reference_);
  29   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
  30       FROM_HERE, base::Bind(&ChildProcess::ReleaseProcess,
  31                             base::Unretained(ChildProcess::current())),
  32       delay);
  33   has_reference_ = false;
  34 }
  35
  36 }  // namespace content