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apache / qpid-site / cec5ef152fbc98a1ce2cfe2e67b80c051056437c / . / input / releases / qpid-proton-0.25.0 / proton / cpp / examples / direct_recv.cpp.html.in
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<h1>direct_recv.cpp</h1>
<div class="highlight"><pre><span></span><span class="cp">#include</span> <span class="cpf">&quot;options.hpp&quot;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/connection.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/container.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/delivery.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/message.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/message_id.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/messaging_handler.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/link.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/listen_handler.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/listener.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;proton/value.hpp&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;iostream&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&lt;map&gt;</span><span class="cp"></span>
<span class="cp">#include</span> <span class="cpf">&quot;fake_cpp11.hpp&quot;</span><span class="cp"></span>
<span class="k">class</span> <span class="nc">direct_recv</span> <span class="o">:</span> <span class="k">public</span> <span class="n">proton</span><span class="o">::</span><span class="n">messaging_handler</span> <span class="p">{</span>
<span class="k">private</span><span class="o">:</span>
<span class="k">class</span> <span class="nc">listener_ready_handler</span> <span class="o">:</span> <span class="k">public</span> <span class="n">proton</span><span class="o">::</span><span class="n">listen_handler</span> <span class="p">{</span>
<span class="kt">void</span> <span class="n">on_open</span><span class="p">(</span><span class="n">proton</span><span class="o">::</span><span class="n">listener</span><span class="o">&amp;</span> <span class="n">l</span><span class="p">)</span> <span class="n">OVERRIDE</span> <span class="p">{</span>
<span class="n">std</span><span class="o">::</span><span class="n">cout</span> <span class="o">&lt;&lt;</span> <span class="s">&quot;listening on &quot;</span> <span class="o">&lt;&lt;</span> <span class="n">l</span><span class="p">.</span><span class="n">port</span><span class="p">()</span> <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">endl</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">url</span><span class="p">;</span>
<span class="n">proton</span><span class="o">::</span><span class="n">listener</span> <span class="n">listener</span><span class="p">;</span>
<span class="n">listener_ready_handler</span> <span class="n">listen_handler</span><span class="p">;</span>
<span class="kt">int</span> <span class="n">expected</span><span class="p">;</span>
<span class="kt">int</span> <span class="n">received</span><span class="p">;</span>
<span class="k">public</span><span class="o">:</span>
<span class="n">direct_recv</span><span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="o">&amp;</span><span class="n">s</span><span class="p">,</span> <span class="kt">int</span> <span class="n">c</span><span class="p">)</span> <span class="o">:</span> <span class="n">url</span><span class="p">(</span><span class="n">s</span><span class="p">),</span> <span class="n">expected</span><span class="p">(</span><span class="n">c</span><span class="p">),</span> <span class="n">received</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> <span class="p">{}</span>
<span class="kt">void</span> <span class="n">on_container_start</span><span class="p">(</span><span class="n">proton</span><span class="o">::</span><span class="n">container</span> <span class="o">&amp;</span><span class="n">c</span><span class="p">)</span> <span class="n">OVERRIDE</span> <span class="p">{</span>
<span class="n">listener</span> <span class="o">=</span> <span class="n">c</span><span class="p">.</span><span class="n">listen</span><span class="p">(</span><span class="n">url</span><span class="p">,</span> <span class="n">listen_handler</span><span class="p">);</span>
<span class="p">}</span>
<span class="kt">void</span> <span class="n">on_message</span><span class="p">(</span><span class="n">proton</span><span class="o">::</span><span class="n">delivery</span> <span class="o">&amp;</span><span class="n">d</span><span class="p">,</span> <span class="n">proton</span><span class="o">::</span><span class="n">message</span> <span class="o">&amp;</span><span class="n">msg</span><span class="p">)</span> <span class="n">OVERRIDE</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="n">proton</span><span class="o">::</span><span class="n">coerce</span><span class="o">&lt;</span><span class="kt">int</span><span class="o">&gt;</span><span class="p">(</span><span class="n">msg</span><span class="p">.</span><span class="n">id</span><span class="p">())</span> <span class="o">&lt;</span> <span class="n">received</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span><span class="p">;</span> <span class="c1">// Ignore duplicate</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="n">expected</span> <span class="o">==</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">received</span> <span class="o">&lt;</span> <span class="n">expected</span><span class="p">)</span> <span class="p">{</span>
<span class="n">std</span><span class="o">::</span><span class="n">cout</span> <span class="o">&lt;&lt;</span> <span class="n">msg</span><span class="p">.</span><span class="n">body</span><span class="p">()</span> <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">endl</span><span class="p">;</span>
<span class="n">received</span><span class="o">++</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="n">received</span> <span class="o">==</span> <span class="n">expected</span><span class="p">)</span> <span class="p">{</span>
<span class="n">d</span><span class="p">.</span><span class="n">receiver</span><span class="p">().</span><span class="n">close</span><span class="p">();</span>
<span class="n">d</span><span class="p">.</span><span class="n">connection</span><span class="p">().</span><span class="n">close</span><span class="p">();</span>
<span class="n">listener</span><span class="p">.</span><span class="n">stop</span><span class="p">();</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="kt">int</span> <span class="nf">main</span><span class="p">(</span><span class="kt">int</span> <span class="n">argc</span><span class="p">,</span> <span class="kt">char</span> <span class="o">**</span><span class="n">argv</span><span class="p">)</span> <span class="p">{</span>
<span class="n">std</span><span class="o">::</span><span class="n">string</span> <span class="n">address</span><span class="p">(</span><span class="s">&quot;127.0.0.1:5672/examples&quot;</span><span class="p">);</span>
<span class="kt">int</span> <span class="n">message_count</span> <span class="o">=</span> <span class="mi">100</span><span class="p">;</span>
<span class="n">example</span><span class="o">::</span><span class="n">options</span> <span class="n">opts</span><span class="p">(</span><span class="n">argc</span><span class="p">,</span> <span class="n">argv</span><span class="p">);</span>
<span class="n">opts</span><span class="p">.</span><span class="n">add_value</span><span class="p">(</span><span class="n">address</span><span class="p">,</span> <span class="sc">&#39;a&#39;</span><span class="p">,</span> <span class="s">&quot;address&quot;</span><span class="p">,</span> <span class="s">&quot;listen and receive on URL&quot;</span><span class="p">,</span> <span class="s">&quot;URL&quot;</span><span class="p">);</span>
<span class="n">opts</span><span class="p">.</span><span class="n">add_value</span><span class="p">(</span><span class="n">message_count</span><span class="p">,</span> <span class="sc">&#39;m&#39;</span><span class="p">,</span> <span class="s">&quot;messages&quot;</span><span class="p">,</span> <span class="s">&quot;receive COUNT messages&quot;</span><span class="p">,</span> <span class="s">&quot;COUNT&quot;</span><span class="p">);</span>
<span class="k">try</span> <span class="p">{</span>
<span class="n">opts</span><span class="p">.</span><span class="n">parse</span><span class="p">();</span>
<span class="n">direct_recv</span> <span class="n">recv</span><span class="p">(</span><span class="n">address</span><span class="p">,</span> <span class="n">message_count</span><span class="p">);</span>
<span class="n">proton</span><span class="o">::</span><span class="n">container</span><span class="p">(</span><span class="n">recv</span><span class="p">).</span><span class="n">run</span><span class="p">();</span>
<span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">(</span><span class="k">const</span> <span class="n">example</span><span class="o">::</span><span class="n">bad_option</span><span class="o">&amp;</span> <span class="n">e</span><span class="p">)</span> <span class="p">{</span>
<span class="n">std</span><span class="o">::</span><span class="n">cout</span> <span class="o">&lt;&lt;</span> <span class="n">opts</span> <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">endl</span> <span class="o">&lt;&lt;</span> <span class="n">e</span><span class="p">.</span><span class="n">what</span><span class="p">()</span> <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">endl</span><span class="p">;</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">(</span><span class="k">const</span> <span class="n">std</span><span class="o">::</span><span class="n">exception</span><span class="o">&amp;</span> <span class="n">e</span><span class="p">)</span> <span class="p">{</span>
<span class="n">std</span><span class="o">::</span><span class="n">cerr</span> <span class="o">&lt;&lt;</span> <span class="n">e</span><span class="p">.</span><span class="n">what</span><span class="p">()</span> <span class="o">&lt;&lt;</span> <span class="n">std</span><span class="o">::</span><span class="n">endl</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">return</span> <span class="mi">1</span><span class="p">;</span>
<span class="p">}</span>
</pre></div>
<p><a href="direct_recv.cpp">Download this file</a></p>