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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/* Copyright (c) 2018-2022 Marcelo Zimbres Silva (mzimbres@gmail.com)</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> *</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Distributed under the Boost Software License, Version 1.0. (See</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * accompanying file LICENSE.txt)</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> */</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &lt;boost/redis/connection.hpp&gt;</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include &lt;boost/redis/resp3/serialization.hpp&gt;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include &lt;boost/asio/deferred.hpp&gt;</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;boost/asio/co_spawn.hpp&gt;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;boost/asio/detached.hpp&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &lt;boost/asio/consign.hpp&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &lt;boost/system/errc.hpp&gt;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment">// See the definition in person.proto. This header is automatically</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment">// generated by CMakeLists.txt.</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &quot;person.pb.h&quot;</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#if defined(BOOST_ASIO_HAS_CO_AWAIT)</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="keyword">namespace </span>net = boost::asio;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="keyword">using </span><a class="code hl_class" href="classboost_1_1redis_1_1request.html">boost::redis::request</a>;</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="keyword">using </span><a class="code hl_typedef" href="group__high-level-api.html#ga98187b3330083b600ef412a763d6866a">boost::redis::response</a>;</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="keyword">using </span><a class="code hl_enumeration" href="group__high-level-api.html#gaaf95d0d45b3829342e8adff2d6c3fcbe">boost::redis::operation</a>;</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="keyword">using </span><a class="code hl_typedef" href="group__high-level-api.html#ga71ed828bcaf291989dcf4050a18601ba">boost::redis::ignore_t</a>;</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="keyword">using </span><a class="code hl_struct" href="group__high-level-api.html#structboost_1_1redis_1_1config">boost::redis::config</a>;</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">using </span><a class="code hl_class" href="classboost_1_1redis_1_1connection.html">boost::redis::connection</a>;</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="comment">// The protobuf type described in examples/person.proto</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">using </span>tutorial::person;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="comment">// Boost.Redis customization points (examples/protobuf.hpp)</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">namespace </span>tutorial</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>{</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment">// Below I am using a Boost.Redis to indicate a protobuf error, this</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="comment">// is ok for an example, users however might want to define their own</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment">// error codes.</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keywordtype">void</span> boost_redis_to_bulk(std::string&amp; to, person <span class="keyword">const</span>&amp; u)</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>{</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> std::string tmp;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordflow">if</span> (!u.SerializeToString(&amp;tmp))</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">throw</span> boost::system::system_error(<a class="code hl_enumvalue" href="group__high-level-api.html#gga657dd981aeeec394a381d3fb4a2222beae8c616c26029d0c1cce5d1be03f8095b">boost::redis::error::invalid_data_type</a>);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> boost::redis::resp3::boost_redis_to_bulk(to, tmp);</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span>}</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="keywordtype">void</span> boost_redis_from_bulk(person&amp; u, std::string_view sv, boost::system::error_code&amp; ec)</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span>{</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> std::string <span class="keyword">const</span> tmp {sv};</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">if</span> (!u.ParseFromString(tmp))</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> ec = <a class="code hl_enumvalue" href="group__high-level-api.html#gga657dd981aeeec394a381d3fb4a2222beae8c616c26029d0c1cce5d1be03f8095b">boost::redis::error::invalid_data_type</a>;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span>}</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>} <span class="comment">// tutorial</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="keyword">using </span>tutorial::boost_redis_to_bulk;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="keyword">using </span>tutorial::boost_redis_from_bulk;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span>net::awaitable&lt;void&gt; co_main(config cfg)</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span>{</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">auto</span> ex = <span class="keyword">co_await</span> net::this_coro::executor;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">auto</span> conn = std::make_shared&lt;connection&gt;(ex);</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> conn-&gt;async_run(cfg, {}, net::consign(net::detached, conn));</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> person p;</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> p.set_name(<span class="stringliteral">&quot;Louis&quot;</span>);</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> p.set_id(3);</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> p.set_email(<span class="stringliteral">&quot;No email yet.&quot;</span>);</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> request req;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> req.push(<span class="stringliteral">&quot;SET&quot;</span>, <span class="stringliteral">&quot;protobuf-key&quot;</span>, p);</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> req.push(<span class="stringliteral">&quot;GET&quot;</span>, <span class="stringliteral">&quot;protobuf-key&quot;</span>);</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> response&lt;ignore_t, person&gt; resp;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// Sends the request and receives the response.</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">co_await</span> conn-&gt;async_exec(req, resp, net::deferred);</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> conn-&gt;cancel();</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> std::cout</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> &lt;&lt; <span class="stringliteral">&quot;Name: &quot;</span> &lt;&lt; std::get&lt;1&gt;(resp).value().name() &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> &lt;&lt; <span class="stringliteral">&quot;Age: &quot;</span> &lt;&lt; std::get&lt;1&gt;(resp).value().id() &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> &lt;&lt; <span class="stringliteral">&quot;Email: &quot;</span> &lt;&lt; std::get&lt;1&gt;(resp).value().email() &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span>}</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="preprocessor">#endif </span><span class="comment">// defined(BOOST_ASIO_HAS_CO_AWAIT)</span></div>
<div class="ttc" id="aclassboost_1_1redis_1_1connection_html"><div class="ttname"><a href="classboost_1_1redis_1_1connection.html">boost::redis::connection</a></div><div class="ttdoc">A basic_connection that type erases the executor.</div><div class="ttdef"><b>Definition:</b> <a href="connection_8hpp_source.html#l00308">connection.hpp:308</a></div></div>
<div class="ttc" id="aclassboost_1_1redis_1_1request_html"><div class="ttname"><a href="classboost_1_1redis_1_1request.html">boost::redis::request</a></div><div class="ttdoc">Creates Redis requests.</div><div class="ttdef"><b>Definition:</b> <a href="request_8hpp_source.html#l00046">request.hpp:46</a></div></div>
<div class="ttc" id="agroup__high-level-api_html_ga71ed828bcaf291989dcf4050a18601ba"><div class="ttname"><a href="group__high-level-api.html#ga71ed828bcaf291989dcf4050a18601ba">boost::redis::ignore_t</a></div><div class="ttdeci">std::decay_t&lt; decltype(std::ignore)&gt; ignore_t</div><div class="ttdoc">Type used to ignore responses.</div><div class="ttdef"><b>Definition:</b> <a href="ignore_8hpp_source.html#l00031">ignore.hpp:31</a></div></div>
<div class="ttc" id="agroup__high-level-api_html_ga98187b3330083b600ef412a763d6866a"><div class="ttname"><a href="group__high-level-api.html#ga98187b3330083b600ef412a763d6866a">boost::redis::response</a></div><div class="ttdeci">std::tuple&lt; adapter::result&lt; Ts &gt;... &gt; response</div><div class="ttdoc">Response with compile-time size.</div><div class="ttdef"><b>Definition:</b> <a href="response_8hpp_source.html#l00023">response.hpp:23</a></div></div>
<div class="ttc" id="agroup__high-level-api_html_gaaf95d0d45b3829342e8adff2d6c3fcbe"><div class="ttname"><a href="group__high-level-api.html#gaaf95d0d45b3829342e8adff2d6c3fcbe">boost::redis::operation</a></div><div class="ttdeci">operation</div><div class="ttdoc">Connection operations that can be cancelled.</div><div class="ttdef"><b>Definition:</b> <a href="operation_8hpp_source.html#l00018">operation.hpp:18</a></div></div>
<div class="ttc" id="agroup__high-level-api_html_gga657dd981aeeec394a381d3fb4a2222beae8c616c26029d0c1cce5d1be03f8095b"><div class="ttname"><a href="group__high-level-api.html#gga657dd981aeeec394a381d3fb4a2222beae8c616c26029d0c1cce5d1be03f8095b">boost::redis::error::invalid_data_type</a></div><div class="ttdeci">@ invalid_data_type</div><div class="ttdoc">Invalid RESP3 type.</div></div>
<div class="ttc" id="agroup__high-level-api_html_structboost_1_1redis_1_1config"><div class="ttname"><a href="group__high-level-api.html#structboost_1_1redis_1_1config">boost::redis::config</a></div><div class="ttdoc">Configure parameters used by the connection classes.</div><div class="ttdef"><b>Definition:</b> <a href="config_8hpp_source.html#l00030">config.hpp:30</a></div></div>
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