2 * Copyright (C) 2015, 2016 "IoT.bzh"
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3 * Author "Loïc Collignon" <loic.collignon@iot.bzh>
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4 * Author "Romain Forlot" <romain.forlot@iot.bzh>
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6 * Licensed under the Apache License, Version 2.0 (the "License");
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7 * you may not use this file except in compliance with the License.
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8 * You may obtain a copy of the License at
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10 * http://www.apache.org/licenses/LICENSE-2.0
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12 * Unless required by applicable law or agreed to in writing, software
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13 * distributed under the License is distributed on an "AS IS" BASIS,
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14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 * See the License for the specific language governing permissions and
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16 * limitations under the License.
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22 #include <exception>
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29 #include "openxc/message_set.hpp"
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31 #define EXIT_SUCCESS 0
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32 #define EXIT_UNKNOWN_ERROR 1
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33 #define EXIT_COMMAND_LINE_ERROR 2
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34 #define EXIT_PROGRAM_ERROR 3
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36 template <typename T>
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40 std::string line_prefix_;
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41 generator(T v, std::string line_prefix = "") : v_{v}, line_prefix_{line_prefix} {}
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45 struct generator<openxc::signal>
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47 const openxc::signal& v_;
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48 std::uint32_t index_;
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49 std::string line_prefix_;
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50 generator(const openxc::signal& v, std::uint32_t index, std::string line_prefix = "")
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51 : v_{v}, index_{index}, line_prefix_{line_prefix}
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56 template <typename T>
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57 generator<T> gen(const T& v, std::string line_prefix = "") { return generator<T>(v, line_prefix); }
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59 generator<openxc::signal> gen(const openxc::signal& v, std::uint32_t index, std::string line_prefix = "")
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61 return generator<openxc::signal>(v, index, line_prefix);
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64 template <typename T>
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65 std::ostream& operator<<(std::ostream& o, const generator<T>& v)
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67 o << v.line_prefix_ << v.v_;
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72 std::ostream& operator<<(std::ostream& o, const generator<bool>& v)
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74 o << v.line_prefix_ << (v.v_ ? "true" : "false");
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79 std::ostream& operator<<(std::ostream& o, const generator<float>& v)
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81 o << v.line_prefix_ << std::showpoint << v.v_ << "f";
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86 std::ostream& operator<<(std::ostream& o, const generator<std::string>& v)
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88 o << v.line_prefix_ << '\"' << v.v_ << '\"';
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92 template <typename T>
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93 std::ostream& operator<<(std::ostream& o, const generator<std::vector<T>>& v)
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95 // o << v.line_prefix_;
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96 auto sz = v.v_.size();
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97 for(const T& i : v.v_)
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99 o << gen(i, v.line_prefix_ + '\t');
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100 if (sz > 1) o << ",";
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104 // o << v.line_prefix_;
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109 std::ostream& operator<<(std::ostream& o, const generator<openxc::message_set>& v)
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111 o << v.line_prefix_
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112 << "{std::make_shared<can_message_set_t>(can_message_set_t{"
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114 << gen(v.v_.name()) << ",\n"
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115 << "\t\t\t{ // beginning can_message_definition_ vector\n"
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116 << gen(v.v_.messages(), "\t\t\t")
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117 << "\n\t\t}, // end can_message_definition vector\n"
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118 << "\t\t\t{ // beginning diagnostic_messages_ vector\n"
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119 << gen(v.v_.diagnostic_messages(),"\t\t\t") << "\n"
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120 << "\t\t\t} // end diagnostic_messages_ vector\n"
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121 << "\t\t})} // end can_message_set entry\n";
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126 std::ostream& operator<<(std::ostream& o, const generator<std::map<std::string, std::vector<std::uint32_t>>>& v)
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128 o << v.line_prefix_ << "{\n";
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129 std::uint32_t c1 = (uint32_t)v.v_.size();
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130 for(const auto& state : v.v_)
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132 std::uint32_t c2 = (uint32_t)state.second.size();
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133 for(const auto& i : state.second)
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135 o << v.line_prefix_ << "\t" << "{" << i << "," << gen(state.first) << "}";
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136 if (c1 > 1 || c2 > 1) o << ',';
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142 o << v.line_prefix_ << "}";
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147 std::ostream& operator<<(std::ostream& o, const generator<openxc::signal>& v)
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149 o << v.line_prefix_ << "{std::make_shared<can_signal_t> (can_signal_t{\n"
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150 << v.line_prefix_ << "\t" << gen(v.v_.generic_name()) << ",\n"
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151 << v.line_prefix_ << "\t" << v.v_.bit_position() << ",\n"
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152 << v.line_prefix_ << "\t" << v.v_.bit_size() << ",\n"
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153 << v.line_prefix_ << "\t" << gen(v.v_.factor()) << ",\n"
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154 << v.line_prefix_ << "\t" << v.v_.offset() << ",\n"
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155 << v.line_prefix_ << "\t" << "0,\n"
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156 << v.line_prefix_ << "\t" << "0,\n"
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157 << v.line_prefix_ << "\tfrequency_clock_t(" << gen(v.v_.max_frequency()) << "),\n"
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158 << v.line_prefix_ << "\t" << gen(v.v_.send_same()) << ",\n"
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159 << v.line_prefix_ << "\t" << gen(v.v_.force_send_changed()) << ",\n"
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160 << gen(v.v_.states(), v.line_prefix_ + '\t') << ",\n"
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161 << v.line_prefix_ << '\t' << gen(v.v_.writable()) << ",\n"
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162 << v.line_prefix_ << '\t' << (v.v_.decoder().size() ? v.v_.decoder() : "nullptr") << ",\n"
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163 << v.line_prefix_ << '\t' << (v.v_.encoder().size() ? v.v_.encoder() : "nullptr") << ",\n"
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164 << v.line_prefix_ << '\t' << "false\n"
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165 << v.line_prefix_ << "})}";
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170 std::ostream& operator<<(std::ostream& o, const generator<openxc::can_message>& v)
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172 o << v.line_prefix_
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173 << "{std::make_shared<can_message_definition_t>(can_message_definition_t{"
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174 << gen(v.v_.bus()) << ","
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175 << v.v_.id() << ","
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176 << "can_message_format_t::STANDARD,"
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177 << "frequency_clock_t(" << gen(v.v_.max_frequency()) << "),"
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178 << gen(v.v_.force_send_changed()) << ",\n";
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179 std::uint32_t index = 0;
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180 o << "\t\t\t\t\t{ // beginning can_signals vector\n";
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181 std::uint32_t signal_count = (uint32_t)v.v_.signals().size();
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182 for(const openxc::signal& s : v.v_.signals())
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184 o << gen(s, index,"\t\t\t\t\t\t");
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185 if (signal_count > 1) o << ',';
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189 o << "\t\t\t\t\t} // end can_signals vector\n"
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190 << "\t\t\t\t})} // end can_message_definition entry\n";
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195 std::ostream& operator<<(std::ostream& o, const generator<openxc::diagnostic_message>& v)
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197 o << v.line_prefix_ << "{std::make_shared<diagnostic_message_t>(diagnostic_message_t{\n"
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198 << v.line_prefix_ << "\t" << v.v_.pid() << ",\n"
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199 << v.line_prefix_ << "\t" << gen(v.v_.name()) << ",\n"
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200 << v.line_prefix_ << "\t" << 0 << ",\n"
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201 << v.line_prefix_ << "\t" << 0 << ",\n"
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202 << v.line_prefix_ << "\t" << "UNIT::INVALID" << ",\n"
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203 << v.line_prefix_ << "\t" << gen(v.v_.frequency()) << ",\n"
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204 << v.line_prefix_ << "\t" << (v.v_.decoder().size() ? v.v_.decoder() : "nullptr") << ",\n"
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205 << v.line_prefix_ << "\t" << (v.v_.callback().size() ? v.v_.callback() : "nullptr") << ",\n"
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206 << v.line_prefix_ << "\t" << "true" << ",\n"
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207 << v.line_prefix_ << "\t" << "false" << "\n"
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208 << v.line_prefix_ << "})}\n";
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212 /// @brief Generate the application code.
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213 /// @param[in] header Content to be inserted as a header.
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214 /// @param[in] footer Content to be inserted as a footer.
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215 /// @param[in] message_set application read from the json file.
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216 /// @param[in] out Stream to write on.
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217 void generate(const std::string& header, const std::string& footer, const openxc::message_set& message_set, std::ostream& out)
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219 out << "#include \"application.hpp\"\n"
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220 << "#include \"../can/can-decoder.hpp\"\n\n";
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222 if (header.size()) out << header << "\n";
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224 out << "application_t::application_t()\n"
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225 << " : can_bus_manager_{utils::config_parser_t{\"/etc/dev-mapping.conf\"}}\n"
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226 << " , can_message_set_{\n"
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227 << gen(message_set, "\t\t")
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228 << "\t} // end can_message_set vector\n"
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230 << " for(auto& cms: can_message_set_)\n"
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232 << " std::vector<std::shared_ptr<can_message_definition_t> >& can_messages_definition = cms->get_can_message_definition();\n"
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233 << " for(auto& cmd : can_messages_definition)\n"
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235 << " cmd->set_parent(cms.get());\n"
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236 << " std::vector<std::shared_ptr<can_signal_t> >& can_signals = cmd->get_can_signals();\n"
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237 << " for(auto& sig: can_signals)\n"
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239 << " sig->set_parent(cmd.get());\n"
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242 << " std::vector<std::shared_ptr<diagnostic_message_t> >& diagnostic_messages = cms->get_diagnostic_messages();\n"
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243 << " for(auto& dm : diagnostic_messages)\n"
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245 << " dm->set_parent(cms.get());\n"
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249 << "const std::string application_t::get_diagnostic_bus() const\n"
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252 std::string active_bus = "";
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253 for (const auto& d : message_set.diagnostic_messages())
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255 if (d.bus().size() == 0) std::cerr << "ERROR: The bus name should be set for each diagnostic message." << std::endl;
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256 if (active_bus.size() == 0) active_bus = d.bus();
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257 if (active_bus != d.bus()) std::cerr << "ERROR: The bus name should be the same for each diagnostic message." << std::endl;
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260 out << "\treturn " << gen(active_bus) << ";\n"
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262 out << footer << std::endl;
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265 /// @brief Read whole file content to a string.
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266 /// @param[in] file Path to the file.
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267 /// @return A std::string which contains the file content. If @c file is an empty string, the return value is also empty.
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268 /// @exception std::runtime_error Throw this exception if the specified file is not found or cannot be opened.
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269 std::string read_file(const std::string& file)
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271 if(file.size() == 0) return std::string();
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273 std::string content;
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274 std::ifstream stream(file);
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277 stream.seekg(0, std::ios::end);
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278 content.reserve(stream.tellg());
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279 stream.seekg(0, std::ios::beg);
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280 content.assign((std::istreambuf_iterator<char>(stream)), std::istreambuf_iterator<char>());
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283 std::stringstream ss;
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284 ss << "The specified file (" << file << ") is not found!";
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285 throw std::runtime_error(ss.str());
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288 /// @brief Read whole file content as a json document.
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289 /// @param[in] file Path to the file.
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290 /// @return A @c nlohmann::json object.
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291 /// @exception std::runtime_error Throw this exception if the specified file is not found or cannot be opened.
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292 nlohmann::json read_json(const std::string& file)
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294 std::ifstream stream(file);
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297 nlohmann::json result;
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301 std::stringstream ss;
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302 ss << "The specified file (" << file << ") is not found!";
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303 throw std::runtime_error(ss.str());
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306 // function that show the help information
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307 void showhelpinfo(char *s)
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309 std::cout<<"Usage: "<<s<<" <-m inpout.json> [-o application-generated.cpp]"<< std::endl;
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310 std::cout<<"option: "<<"-m input.json : JSON file describing CAN messages and signals"<< std::endl;
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311 std::cout<<" "<<"-h header.cpp : header source file insert at the beginning of generated file"<< std::endl;
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312 std::cout<<" "<<"-f footer.cpp : footer source file append to generated file."<< std::endl;
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313 std::cout<<" "<<"-o application-generated.cpp : output source file. Name has to be application-generated.cpp"<< std::endl;
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316 /// @brief Entry point.
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317 /// @param[in] argc Argument's count.
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318 /// @param[in] argv Argument's array.
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319 /// @return Exit code, zero if success.
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320 int main(int argc, char *argv[])
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324 std::string appName = argv[0];
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325 std::string message_set_file;
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326 std::string output_file;
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327 std::string header_file;
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328 std::string footer_file;
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331 /*if the program is ran witout options ,it will show the usgage and exit*/
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334 showhelpinfo(argv[0]);
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337 /*use function getopt to get the arguments with option."hu:p:s:v" indicate
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338 that option h,v are the options without arguments while u,p,s are the
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339 options with arguments*/
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340 while((tmp=(char)getopt(argc,argv,"m:h:f:o:"))!=-1)
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345 header_file = optarg;
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348 footer_file = optarg;
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351 message_set_file = optarg;
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354 output_file = optarg;
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357 showhelpinfo(argv[0]);
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362 std::stringstream header;
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363 header << read_file(header_file);
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365 std::string footer = read_file(footer_file);
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366 openxc::message_set message_set;
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367 message_set.from_json(read_json(message_set_file));
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369 std::string message_set_path = dirname(strdup(message_set_file.c_str()));
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370 for(const auto& s : message_set.extra_sources())
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372 std::string extra_source = s;
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373 extra_source = message_set_path + "/" + extra_source;
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374 header << "\n// >>>>> " << s << " >>>>>\n" << read_file(extra_source) << "\n// <<<<< " << s << " <<<<<\n";
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378 if (output_file.size())
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380 out.open(output_file);
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383 std::stringstream ss;
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384 ss << "Can't open the ouput file (" << output_file << ") for writing!";
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385 throw std::runtime_error(ss.str());
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388 generate(header.str(), footer, message_set, output_file.size() ? out : std::cout);
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390 catch (std::exception& e)
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392 std::cerr << "ERROR: Unhandled exception - " << e.what() << std::endl;
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393 return EXIT_UNKNOWN_ERROR;
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395 return EXIT_SUCCESS;
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