← Back to branch summary

~alinuxninja/nginx-edge/trunk

« back to all changes in this revision

Viewing changes to debian/modules/ngx_pagespeed/psol/include/third_party/chromium/src/base/memory/ref_counted_delete_on_message_loop.h

  • Committer: Vivian
  • Date: 2015-12-04 18:20:11 UTC
  • Revision ID: git-v1:a36f2bc32e884f7473b3a47040e5411306144d7d
* Do not extract psol.tar.gz

Show diffs side-by-side

added added

removed removed

Lines of Context:
debian/modules/ngx_pagespeed/psol/include/third_party/chromium/src/base/memory/ref_counted_delete_on_message_loop.h
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
 
#ifndef BASE_MEMORY_REF_COUNTED_DELETE_ON_MESSAGE_LOOP_H_
6
 
#define BASE_MEMORY_REF_COUNTED_DELETE_ON_MESSAGE_LOOP_H_
7
 
 
8
 
#include "base/location.h"
9
 
#include "base/logging.h"
10
 
#include "base/memory/ref_counted.h"
11
 
#include "base/message_loop/message_loop_proxy.h"
12
 
 
13
 
namespace base {
14
 
 
15
 
// RefCountedDeleteOnMessageLoop is similar to RefCountedThreadSafe, and ensures
16
 
// that the object will be deleted on a specified message loop.
17
 
//
18
 
// Sample usage:
19
 
// class Foo : public RefCountedDeleteOnMessageLoop<Foo> {
20
 
//
21
 
//   Foo(const scoped_refptr<MessageLoopProxy>& loop)
22
 
//       : RefCountedDeleteOnMessageLoop<Foo>(loop) {
23
 
//     ...
24
 
//   }
25
 
//   ...
26
 
//  private:
27
 
//   friend class RefCountedDeleteOnMessageLoop<Foo>;
28
 
//   friend class DeleteHelper<Foo>;
29
 
//
30
 
//   ~Foo();
31
 
// };
32
 
 
33
 
template <class T>
34
 
class RefCountedDeleteOnMessageLoop : public subtle::RefCountedThreadSafeBase {
35
 
 public:
36
 
  RefCountedDeleteOnMessageLoop(
37
 
      const scoped_refptr<MessageLoopProxy>& proxy) : proxy_(proxy) {
38
 
    DCHECK(proxy_.get());
39
 
  }
40
 
 
41
 
  void AddRef() const {
42
 
    subtle::RefCountedThreadSafeBase::AddRef();
43
 
  }
44
 
 
45
 
  void Release() const {
46
 
    if (subtle::RefCountedThreadSafeBase::Release())
47
 
      DestructOnMessageLoop();
48
 
  }
49
 
 
50
 
 protected:
51
 
  friend class DeleteHelper<RefCountedDeleteOnMessageLoop>;
52
 
  ~RefCountedDeleteOnMessageLoop() {}
53
 
 
54
 
  void DestructOnMessageLoop() const {
55
 
    const T* t = static_cast<const T*>(this);
56
 
    if (proxy_->BelongsToCurrentThread())
57
 
      delete t;
58
 
    else
59
 
      proxy_->DeleteSoon(FROM_HERE, t);
60
 
  }
61
 
 
62
 
  scoped_refptr<MessageLoopProxy> proxy_;
63
 
 
64
 
 private:
65
 
  DISALLOW_COPY_AND_ASSIGN(RefCountedDeleteOnMessageLoop);
66
 
};
67
 
 
68
 
}  // namespace base
69
 
 
70
 
#endif  // BASE_MEMORY_REF_COUNTED_DELETE_ON_MESSAGE_LOOP_H_