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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 MOJO_PUBLIC_CPP_BINDINGS_LIB_MESSAGE_BUILDER_H_ | |
6 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_MESSAGE_BUILDER_H_ | |
7 | |
8 #include <stdint.h> | |
9 | |
10 #include "mojo/public/cpp/bindings/lib/fixed_buffer.h" | |
11 #include "mojo/public/cpp/bindings/lib/message_internal.h" | |
12 | |
13 namespace mojo { | |
14 class Message; | |
15 | |
16 namespace internal { | |
17 | |
18 class MessageBuilder { | |
19 public: | |
20 MessageBuilder(uint32_t name, size_t payload_size); | |
21 ~MessageBuilder(); | |
22 | |
23 Buffer* buffer() { return &buf_; } | |
24 | |
25 // Call Finish when done making allocations in |buffer()|. Upon return, | |
26 // |message| will contain the message data, and |buffer()| will no longer be | |
27 // valid to reference. | |
28 void Finish(Message* message); | |
29 | |
30 protected: | |
31 explicit MessageBuilder(size_t size); | |
32 FixedBuffer buf_; | |
33 | |
34 MOJO_DISALLOW_COPY_AND_ASSIGN(MessageBuilder); | |
35 }; | |
36 | |
37 class MessageWithRequestIDBuilder : public MessageBuilder { | |
38 public: | |
39 MessageWithRequestIDBuilder(uint32_t name, | |
40 size_t payload_size, | |
41 uint32_t flags, | |
42 uint64_t request_id); | |
43 }; | |
44 | |
45 class RequestMessageBuilder : public MessageWithRequestIDBuilder { | |
46 public: | |
47 RequestMessageBuilder(uint32_t name, size_t payload_size) | |
48 : MessageWithRequestIDBuilder(name, | |
49 payload_size, | |
50 kMessageExpectsResponse, | |
51 0) {} | |
52 }; | |
53 | |
54 class ResponseMessageBuilder : public MessageWithRequestIDBuilder { | |
55 public: | |
56 ResponseMessageBuilder(uint32_t name, | |
57 size_t payload_size, | |
58 uint64_t request_id) | |
59 : MessageWithRequestIDBuilder(name, | |
60 payload_size, | |
61 kMessageIsResponse, | |
62 request_id) {} | |
63 }; | |
64 | |
65 } // namespace internal | |
66 } // namespace mojo | |
67 | |
68 #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_MESSAGE_BUILDER_H_ | |
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