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<section id="c-and-c-api">
<h1>C and C++ API<a class="headerlink" href="#c-and-c-api" title="Link to this heading">ΒΆ</a></h1>
<p>Header: <a class="reference external" href="https://github.com/lode-org/readcon-db/blob/main/include/readcon-db.h"><code class="docutils literal notranslate"><span class="pre">include/readcon-db.h</span></code></a>.</p>
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">"readcon-db.h"</span>
<span class="kt">size_t</span><span class="w"> </span><span class="n">id</span><span class="p">;</span>
<span class="n">rkrdb_open</span><span class="p">(</span><span class="s">"/tmp/corpus"</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">id</span><span class="p">);</span>
<span class="kt">uint32_t</span><span class="w"> </span><span class="n">n</span><span class="p">;</span>
<span class="n">rkrdb_append_trajectory</span><span class="p">(</span><span class="n">id</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="s">"run.con"</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">n</span><span class="p">);</span>
<span class="n">rkrdb_select_basic</span><span class="p">(</span><span class="n">id</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="s">"Cu"</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">100000</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span>
<span class="kt">int</span><span class="w"> </span><span class="n">m</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">rkrdb_result_count</span><span class="p">(</span><span class="n">id</span><span class="p">);</span>
<span class="kt">uint64_t</span><span class="w"> </span><span class="n">traj</span><span class="p">;</span><span class="w"> </span><span class="kt">uint32_t</span><span class="w"> </span><span class="n">frame</span><span class="p">;</span>
<span class="n">rkrdb_result_key</span><span class="p">(</span><span class="n">id</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">traj</span><span class="p">,</span><span class="w"> </span><span class="o">&</span><span class="n">frame</span><span class="p">);</span>
<span class="kt">uint8_t</span><span class="w"> </span><span class="n">hash</span><span class="p">[</span><span class="mi">16</span><span class="p">];</span>
<span class="n">rkrdb_frame_hash</span><span class="p">(</span><span class="n">id</span><span class="p">,</span><span class="w"> </span><span class="n">traj</span><span class="p">,</span><span class="w"> </span><span class="n">frame</span><span class="p">,</span><span class="w"> </span><span class="n">hash</span><span class="p">);</span>
<span class="n">rkrdb_select_hash</span><span class="p">(</span><span class="n">id</span><span class="p">,</span><span class="w"> </span><span class="n">hash</span><span class="p">);</span>
<span class="n">rkrdb_close</span><span class="p">(</span><span class="n">id</span><span class="p">);</span>
</pre></div>
</div>
<p>Status: <code class="docutils literal notranslate"><span class="pre">RKRDB_OK</span></code> (0), <code class="docutils literal notranslate"><span class="pre">RKRDB_ERR</span></code> (-1), <code class="docutils literal notranslate"><span class="pre">RKRDB_NOT_FOUND</span></code> (-2), <code class="docutils literal notranslate"><span class="pre">RKRDB_NULL</span></code> (-3).</p>
<p>Link <code class="docutils literal notranslate"><span class="pre">libreadcon_db</span></code> from <code class="docutils literal notranslate"><span class="pre">cargo</span> <span class="pre">build</span> <span class="pre">--release</span></code> (<code class="docutils literal notranslate"><span class="pre">cdylib</span></code> / <code class="docutils literal notranslate"><span class="pre">staticlib</span></code>).</p>
<p>C++ RAII:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf">"readcon-db.h"</span>
<span class="n">readcon_db</span><span class="o">::</span><span class="n">Corpus</span><span class="w"> </span><span class="n">db</span><span class="p">(</span><span class="s">"/tmp/corpus"</span><span class="p">);</span>
<span class="n">db</span><span class="p">.</span><span class="n">append_trajectory</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="s">"run.con"</span><span class="p">);</span>
<span class="n">db</span><span class="p">.</span><span class="n">select_basic</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="s">"Cu"</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">100000</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span>
</pre></div>
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