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| 1 // Copyright 2014 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 #include "base/file_util.h" |
| 6 #include "base/files/file_path.h" |
| 7 #include "base/strings/string_util.h" |
| 8 #include "base/strings/stringprintf.h" |
| 9 #include "mojo/public/cpp/bindings/lib/message_builder.h" |
| 10 #include "mojo/public/cpp/bindings/lib/message_internal.h" |
| 11 #include "mojo/public/cpp/bindings/message.h" |
| 12 |
| 13 // This file is used to generate various files corresponding to mojo |
| 14 // messages. The various binding implementations can parse these to verify they |
| 15 // correctly decode messages. |
| 16 // |
| 17 // The output consists of each byte of the message encoded in a hex string with |
| 18 // a newline after it. |
| 19 namespace mojo { |
| 20 namespace { |
| 21 |
| 22 std::string BinaryToHex(const base::StringPiece& piece) { |
| 23 std::string result("// File generated by mojo_message_generator.\n");; |
| 24 result.reserve(result.size() + (piece.size() * 5)); |
| 25 for (size_t i = 0; i < piece.size(); ++i) |
| 26 base::StringAppendF(&result, "0X%.2X\n", static_cast<int>(piece.data()[i])); |
| 27 return result; |
| 28 } |
| 29 |
| 30 void WriteMessageToFile(const Message& message, const base::FilePath& path) { |
| 31 const std::string hex_message(BinaryToHex( |
| 32 base::StringPiece(reinterpret_cast<const char*>(message.data()), |
| 33 message.data_num_bytes()))); |
| 34 CHECK_EQ(static_cast<int>(hex_message.size()), |
| 35 base::WriteFile(path, hex_message.data(), |
| 36 static_cast<int>(hex_message.size()))); |
| 37 } |
| 38 |
| 39 // Generates a message of type MessageData. The message uses the name 21, |
| 40 // with 4 bytes of payload: 0x9, 0x8, 0x7, 0x6. |
| 41 void GenerateMessageDataMessage() { |
| 42 internal::MessageBuilder builder(static_cast<uint32_t>(21), |
| 43 static_cast<size_t>(4)); |
| 44 char* data = static_cast<char*>(builder.buffer()->Allocate(4)); |
| 45 DCHECK(data); |
| 46 data[0] = 9; |
| 47 data[1] = 8; |
| 48 data[2] = 7; |
| 49 data[3] = 6; |
| 50 |
| 51 Message message; |
| 52 builder.Finish(&message); |
| 53 WriteMessageToFile(message, |
| 54 base::FilePath(FILE_PATH_LITERAL("message_data"))); |
| 55 } |
| 56 |
| 57 } // namespace |
| 58 } // namespace mojo |
| 59 |
| 60 int main(int argc, char** argv) { |
| 61 mojo::GenerateMessageDataMessage(); |
| 62 return 0; |
| 63 } |
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