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| <p class='location'>Type Definition MQTTAsync_connectionLost</p><p class='location'><a href='index.html'>paho_mqtt3as_sys</a></p><script>window.sidebarCurrent = {name: 'MQTTAsync_connectionLost', ty: 'type', relpath: ''};</script><script defer src="sidebar-items.js"></script> |
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| <h1 class='fqn'><span class='in-band'>Type Definition <a href='index.html'>paho_mqtt3as_sys</a>::<wbr><a class="type" href=''>MQTTAsync_connectionLost</a></span><span class='out-of-band'><span id='render-detail'> |
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| <pre class='rust typedef'>type MQTTAsync_connectionLost = <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><unsafe extern "C" fn(_: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.pointer.html">*mut </a><a class="enum" href="https://doc.rust-lang.org/nightly/std/os/raw/enum.c_void.html" title="enum std::os::raw::c_void">c_void</a>, _: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.pointer.html">*mut </a><a class="type" href="https://doc.rust-lang.org/nightly/std/os/raw/type.c_char.html" title="type std::os::raw::c_char">c_char</a>)>;</pre><div class='docblock'><p>This is a callback function. The client application |
| must provide an implementation of this function to enable asynchronous |
| notification of the loss of connection to the server. The function is |
| registered with the client library by passing it as an argument to |
| MQTTAsync_setCallbacks(). It is called by the client library if the client |
| loses its connection to the server. The client application must take |
| appropriate action, such as trying to reconnect or reporting the problem. |
| This function is executed on a separate thread to the one on which the |
| client application is running. |
| @param context A pointer to the <i>context</i> value originally passed to |
| MQTTAsync_setCallbacks(), which contains any application-specific context. |
| @param cause The reason for the disconnection. |
| Currently, <i>cause</i> is always set to NULL.</p> |
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