callback_tracker_internal.h.pump revision 46d4c2bc3267f3f028f39e7e311b0f89aba2e4fd 
1$$ This is a pump file for generating file templates.  Pump is a python
2$$ script that is part of the Google Test suite of utilities.  Description
3$$ can be found here:
4$$
5$$ http://code.google.com/p/googletest/wiki/PumpManual
6$$
7$$ See comment for MAX_ARITY in base/bind.h.pump.
8$var MAX_ARITY = 7
9
10// Copyright 2014 The Chromium Authors. All rights reserved.
11// Use of this source code is governed by a BSD-style license that can be
12// found in the LICENSE file.
13
14#ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_
15#define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_
16
17#include "base/callback.h"
18#include "base/callback_internal.h"
19#include "base/memory/scoped_ptr.h"
20#include "base/memory/weak_ptr.h"
21
22namespace sync_file_system {
23namespace drive_backend {
24
25class CallbackTracker;
26
27namespace internal {
28
29class AbortHelper {
30 public:
31  explicit AbortHelper(CallbackTracker* tracker);
32  ~AbortHelper();
33  base::WeakPtr<AbortHelper> AsWeakPtr();
34
35  static scoped_ptr<AbortHelper> TakeOwnership(
36      const base::WeakPtr<AbortHelper>& abort_helper);
37
38 private:
39  CallbackTracker* tracker_;  // Not owned.
40  base::WeakPtrFactory<AbortHelper> weak_ptr_factory_;
41
42  DISALLOW_COPY_AND_ASSIGN(AbortHelper);
43};
44
45template <typename>
46struct InvokeAndInvalidateHelper;
47
48$range ARITY 0..MAX_ARITY
49$for ARITY [[
50$range ARG 1..ARITY
51
52template <$for ARG , [[typename A$(ARG)]]>
53struct InvokeAndInvalidateHelper<void($for ARG , [[A$(ARG)]])> {
54  static void Run(const base::WeakPtr<AbortHelper>& abort_helper,
55                  const base::Callback<void($for ARG , [[A$(ARG)]])>& callback
56$if ARITY != 0 [[, ]]
57$for ARG , [[A$(ARG) a$(ARG)]]
58) {
59    scoped_ptr<AbortHelper> deleter = AbortHelper::TakeOwnership(abort_helper);
60    if (deleter) {
61      callback.Run(
62$for ARG , [[base::internal::CallbackForward(a$(ARG))]]);
63    }
64  }
65};
66
67]]  $$ for ARITY
68
69}  // namespace internal
70}  // namespace drive_backend
71}  // namespace sync_file_system
72
73#endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_CALLBACK_TRACKER_INTERNAL_H_
74