summaryrefslogtreecommitdiff
path: root/content/browser/browser_process_sub_thread.h
blob: e006388783b3028647b3cfc5887bbb0cf2bbcfd2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_BROWSER_PROCESS_SUB_THREAD_H_
#define CONTENT_BROWSER_BROWSER_PROCESS_SUB_THREAD_H_

#include "base/basictypes.h"
#include "content/browser/browser_thread_impl.h"
#include "content/common/content_export.h"

#if defined(OS_WIN)
namespace base {
namespace win {
class ScopedCOMInitializer;
}
}
#endif

namespace content {
class NotificationService;
}

namespace content {

// ----------------------------------------------------------------------------
// BrowserProcessSubThread
//
// This simple thread object is used for the specialized threads that the
// BrowserProcess spins up.
//
// Applications must initialize the COM library before they can call
// COM library functions other than CoGetMalloc and memory allocation
// functions, so this class initializes COM for those users.
class CONTENT_EXPORT BrowserProcessSubThread : public BrowserThreadImpl {
 public:
  explicit BrowserProcessSubThread(BrowserThread::ID identifier);
  virtual ~BrowserProcessSubThread();

 protected:
  virtual void Init() OVERRIDE;
  virtual void CleanUp() OVERRIDE;

 private:
  // These methods encapsulate cleanup that needs to happen on the IO thread
  // before we call the embedder's CleanUp function.
  void IOThreadPreCleanUp();

#if defined (OS_WIN)
  scoped_ptr<base::win::ScopedCOMInitializer> com_initializer_;
#endif

  // Each specialized thread has its own notification service.
  scoped_ptr<NotificationService> notification_service_;

  DISALLOW_COPY_AND_ASSIGN(BrowserProcessSubThread);
};

}  // namespace content

#endif  // CONTENT_BROWSER_BROWSER_PROCESS_SUB_THREAD_H_