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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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