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27 <a name="beast.ref.boost__beast__websocket__stream_base__timeout.keep_alive_pings"></a><a class="link" href="keep_alive_pings.html" title="websocket::stream_base::timeout::keep_alive_pings">websocket::stream_base::timeout::keep_alive_pings</a>
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29 <p>
30           <a class="indexterm" name="idm45873469249312"></a>
31 Automatic ping setting.
32         </p>
33 <h6>
34 <a name="beast.ref.boost__beast__websocket__stream_base__timeout.keep_alive_pings.h0"></a>
35           <span class="phrase"><a name="beast.ref.boost__beast__websocket__stream_base__timeout.keep_alive_pings.synopsis"></a></span><a class="link" href="keep_alive_pings.html#beast.ref.boost__beast__websocket__stream_base__timeout.keep_alive_pings.synopsis">Synopsis</a>
36         </h6>
37 <pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">keep_alive_pings</span><span class="special">;</span>
38 </pre>
39 <h6>
40 <a name="beast.ref.boost__beast__websocket__stream_base__timeout.keep_alive_pings.h1"></a>
41           <span class="phrase"><a name="beast.ref.boost__beast__websocket__stream_base__timeout.keep_alive_pings.description"></a></span><a class="link" href="keep_alive_pings.html#beast.ref.boost__beast__websocket__stream_base__timeout.keep_alive_pings.description">Description</a>
42         </h6>
43 <p>
44           If the idle interval is set, this setting affects the behavior of the stream
45           when no data is received for the timeout interval as follows:
46         </p>
47 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
48 <li class="listitem">
49               When <code class="computeroutput"><span class="identifier">keep_alive_pings</span></code>
50               is <code class="computeroutput"><span class="keyword">true</span></code>, an idle ping
51               will be sent automatically. If another timeout interval elapses with
52               no received data then the connection will be closed. An outstanding
53               read operation must be pending, which will complete immediately the
54               error <a class="link" href="../boost__beast__error.html" title="error"><code class="computeroutput"><span class="identifier">timeout</span></code></a>.
55             </li>
56 <li class="listitem">
57               When <code class="computeroutput"><span class="identifier">keep_alive_pings</span></code>
58               is <code class="computeroutput"><span class="keyword">false</span></code>, the connection
59               will be closed. An outstanding read operation must be pending, which
60               will complete immediately the error <a class="link" href="../boost__beast__error.html" title="error"><code class="computeroutput"><span class="identifier">timeout</span></code></a>.
61             </li>
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