OLD | NEW |
| (Empty) |
1 // Copyright (c) 2011 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 CHROME_BROWSER_MAC_SCOPED_AUTHORIZATIONREF_H_ | |
6 #define CHROME_BROWSER_MAC_SCOPED_AUTHORIZATIONREF_H_ | |
7 #pragma once | |
8 | |
9 #include <Security/Authorization.h> | |
10 | |
11 #include "base/basictypes.h" | |
12 #include "base/compiler_specific.h" | |
13 | |
14 // ScopedAuthorizationRef maintains ownership of an AuthorizationRef. It is | |
15 // patterned after the scoped_ptr interface. | |
16 | |
17 class ScopedAuthorizationRef { | |
18 public: | |
19 explicit ScopedAuthorizationRef(AuthorizationRef authorization = NULL) | |
20 : authorization_(authorization) { | |
21 } | |
22 | |
23 ~ScopedAuthorizationRef() { | |
24 if (authorization_) { | |
25 AuthorizationFree(authorization_, kAuthorizationFlagDestroyRights); | |
26 } | |
27 } | |
28 | |
29 void reset(AuthorizationRef authorization = NULL) { | |
30 if (authorization_ != authorization) { | |
31 if (authorization_) { | |
32 AuthorizationFree(authorization_, kAuthorizationFlagDestroyRights); | |
33 } | |
34 authorization_ = authorization; | |
35 } | |
36 } | |
37 | |
38 bool operator==(AuthorizationRef that) const { | |
39 return authorization_ == that; | |
40 } | |
41 | |
42 bool operator!=(AuthorizationRef that) const { | |
43 return authorization_ != that; | |
44 } | |
45 | |
46 operator AuthorizationRef() const { | |
47 return authorization_; | |
48 } | |
49 | |
50 AuthorizationRef* operator&() { | |
51 return &authorization_; | |
52 } | |
53 | |
54 AuthorizationRef get() const { | |
55 return authorization_; | |
56 } | |
57 | |
58 void swap(ScopedAuthorizationRef& that) { | |
59 AuthorizationRef temp = that.authorization_; | |
60 that.authorization_ = authorization_; | |
61 authorization_ = temp; | |
62 } | |
63 | |
64 // ScopedAuthorizationRef::release() is like scoped_ptr<>::release. It is | |
65 // NOT a wrapper for AuthorizationFree(). To force a | |
66 // ScopedAuthorizationRef object to call AuthorizationFree(), use | |
67 // ScopedAuthorizationRef::reset(). | |
68 AuthorizationRef release() WARN_UNUSED_RESULT { | |
69 AuthorizationRef temp = authorization_; | |
70 authorization_ = NULL; | |
71 return temp; | |
72 } | |
73 | |
74 private: | |
75 AuthorizationRef authorization_; | |
76 | |
77 DISALLOW_COPY_AND_ASSIGN(ScopedAuthorizationRef); | |
78 }; | |
79 | |
80 #endif // CHROME_BROWSER_MAC_SCOPED_AUTHORIZATIONREF_H_ | |
OLD | NEW |