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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef GOOGLE_APIS_GCM_BASE_MCS_MESSAGE_H_ | 5 #ifndef GOOGLE_APIS_GCM_BASE_MCS_MESSAGE_H_ |
6 #define GOOGLE_APIS_GCM_BASE_MCS_MESSAGE_H_ | 6 #define GOOGLE_APIS_GCM_BASE_MCS_MESSAGE_H_ |
7 | 7 |
| 8 #include <stdint.h> |
| 9 |
8 #include <string> | 10 #include <string> |
9 | 11 |
10 #include "base/basictypes.h" | 12 #include "base/macros.h" |
11 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
12 #include "base/memory/scoped_ptr.h" | 14 #include "base/memory/scoped_ptr.h" |
13 #include "google_apis/gcm/base/gcm_export.h" | 15 #include "google_apis/gcm/base/gcm_export.h" |
14 | 16 |
15 namespace google { | 17 namespace google { |
16 namespace protobuf { | 18 namespace protobuf { |
17 class MessageLite; | 19 class MessageLite; |
18 } // namespace protobuf | 20 } // namespace protobuf |
19 } // namespace google | 21 } // namespace google |
20 | 22 |
21 namespace gcm { | 23 namespace gcm { |
22 | 24 |
23 // A wrapper for MCS protobuffers that encapsulates their tag, size and data | 25 // A wrapper for MCS protobuffers that encapsulates their tag, size and data |
24 // in an immutable and thread-safe format. If a mutable version is desired, | 26 // in an immutable and thread-safe format. If a mutable version is desired, |
25 // CloneProtobuf() should use used to create a new copy of the protobuf. | 27 // CloneProtobuf() should use used to create a new copy of the protobuf. |
26 // | 28 // |
27 // Note: default copy and assign welcome. | 29 // Note: default copy and assign welcome. |
28 class GCM_EXPORT MCSMessage { | 30 class GCM_EXPORT MCSMessage { |
29 public: | 31 public: |
30 // Creates an invalid MCSMessage. | 32 // Creates an invalid MCSMessage. |
31 MCSMessage(); | 33 MCSMessage(); |
32 // Infers tag from |message|. | 34 // Infers tag from |message|. |
33 explicit MCSMessage(const google::protobuf::MessageLite& protobuf); | 35 explicit MCSMessage(const google::protobuf::MessageLite& protobuf); |
34 // |tag| must match |protobuf|'s message type. | 36 // |tag| must match |protobuf|'s message type. |
35 MCSMessage(uint8 tag, const google::protobuf::MessageLite& protobuf); | 37 MCSMessage(uint8_t tag, const google::protobuf::MessageLite& protobuf); |
36 // |tag| must match |protobuf|'s message type. Takes ownership of |protobuf|. | 38 // |tag| must match |protobuf|'s message type. Takes ownership of |protobuf|. |
37 MCSMessage(uint8 tag, | 39 MCSMessage(uint8_t tag, |
38 scoped_ptr<const google::protobuf::MessageLite> protobuf); | 40 scoped_ptr<const google::protobuf::MessageLite> protobuf); |
39 ~MCSMessage(); | 41 ~MCSMessage(); |
40 | 42 |
41 // Returns whether this message is valid or not (whether a protobuf was | 43 // Returns whether this message is valid or not (whether a protobuf was |
42 // provided at construction time or not). | 44 // provided at construction time or not). |
43 bool IsValid() const; | 45 bool IsValid() const; |
44 | 46 |
45 // Getters for serialization. | 47 // Getters for serialization. |
46 uint8 tag() const { return tag_; } | 48 uint8_t tag() const { return tag_; } |
47 int size() const {return size_; } | 49 int size() const {return size_; } |
48 std::string SerializeAsString() const; | 50 std::string SerializeAsString() const; |
49 | 51 |
50 // Getter for accessing immutable probotuf fields. | 52 // Getter for accessing immutable probotuf fields. |
51 const google::protobuf::MessageLite& GetProtobuf() const; | 53 const google::protobuf::MessageLite& GetProtobuf() const; |
52 | 54 |
53 // Getter for creating a mutated version of the protobuf. | 55 // Getter for creating a mutated version of the protobuf. |
54 scoped_ptr<google::protobuf::MessageLite> CloneProtobuf() const; | 56 scoped_ptr<google::protobuf::MessageLite> CloneProtobuf() const; |
55 | 57 |
56 private: | 58 private: |
57 class Core : public base::RefCountedThreadSafe<MCSMessage::Core> { | 59 class Core : public base::RefCountedThreadSafe<MCSMessage::Core> { |
58 public: | 60 public: |
59 Core(); | 61 Core(); |
60 Core(uint8 tag, const google::protobuf::MessageLite& protobuf); | 62 Core(uint8_t tag, const google::protobuf::MessageLite& protobuf); |
61 Core(uint8 tag, scoped_ptr<const google::protobuf::MessageLite> protobuf); | 63 Core(uint8_t tag, scoped_ptr<const google::protobuf::MessageLite> protobuf); |
62 | 64 |
63 const google::protobuf::MessageLite& Get() const; | 65 const google::protobuf::MessageLite& Get() const; |
64 | 66 |
65 private: | 67 private: |
66 friend class base::RefCountedThreadSafe<MCSMessage::Core>; | 68 friend class base::RefCountedThreadSafe<MCSMessage::Core>; |
67 ~Core(); | 69 ~Core(); |
68 | 70 |
69 // The immutable protobuf. | 71 // The immutable protobuf. |
70 scoped_ptr<const google::protobuf::MessageLite> protobuf_; | 72 scoped_ptr<const google::protobuf::MessageLite> protobuf_; |
71 | 73 |
72 DISALLOW_COPY_AND_ASSIGN(Core); | 74 DISALLOW_COPY_AND_ASSIGN(Core); |
73 }; | 75 }; |
74 | 76 |
75 // These are cached separately to avoid having to recompute them. | 77 // These are cached separately to avoid having to recompute them. |
76 const uint8 tag_; | 78 const uint8_t tag_; |
77 const int size_; | 79 const int size_; |
78 | 80 |
79 // The refcounted core, containing the protobuf memory. | 81 // The refcounted core, containing the protobuf memory. |
80 scoped_refptr<const Core> core_; | 82 scoped_refptr<const Core> core_; |
81 }; | 83 }; |
82 | 84 |
83 } // namespace gcm | 85 } // namespace gcm |
84 | 86 |
85 #endif // GOOGLE_APIS_GCM_BASE_MCS_MESSAGE_H_ | 87 #endif // GOOGLE_APIS_GCM_BASE_MCS_MESSAGE_H_ |
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