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| 1 // Copyright (c) 2012 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_MAC_SCOPED_AUTHORIZATIONREF_H_ | |
| 6 #define BASE_MAC_SCOPED_AUTHORIZATIONREF_H_ | |
| 7 | |
| 8 #include <Security/Authorization.h> | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/compiler_specific.h" | |
| 12 | |
| 13 // ScopedAuthorizationRef maintains ownership of an AuthorizationRef. It is | |
| 14 // patterned after the scoped_ptr interface. | |
| 15 | |
| 16 namespace base { | |
| 17 namespace mac { | |
| 18 | |
| 19 class ScopedAuthorizationRef { | |
| 20 public: | |
| 21 explicit ScopedAuthorizationRef(AuthorizationRef authorization = NULL) | |
| 22 : authorization_(authorization) { | |
| 23 } | |
| 24 | |
| 25 ~ScopedAuthorizationRef() { | |
| 26 if (authorization_) { | |
| 27 AuthorizationFree(authorization_, kAuthorizationFlagDestroyRights); | |
| 28 } | |
| 29 } | |
| 30 | |
| 31 void reset(AuthorizationRef authorization = NULL) { | |
| 32 if (authorization_ != authorization) { | |
| 33 if (authorization_) { | |
| 34 AuthorizationFree(authorization_, kAuthorizationFlagDestroyRights); | |
| 35 } | |
| 36 authorization_ = authorization; | |
| 37 } | |
| 38 } | |
| 39 | |
| 40 bool operator==(AuthorizationRef that) const { | |
| 41 return authorization_ == that; | |
| 42 } | |
| 43 | |
| 44 bool operator!=(AuthorizationRef that) const { | |
| 45 return authorization_ != that; | |
| 46 } | |
| 47 | |
| 48 operator AuthorizationRef() const { | |
| 49 return authorization_; | |
| 50 } | |
| 51 | |
| 52 AuthorizationRef* get_pointer() { return &authorization_; } | |
| 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 } // namespace mac | |
| 81 } // namespace base | |
| 82 | |
| 83 #endif // BASE_MAC_SCOPED_AUTHORIZATIONREF_H_ | |
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