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href="Rpc_simple_client.html"> <link title="Rpc_portmapper_clnt" rel="Chapter" href="Rpc_portmapper_clnt.html"> <link title="Rpc_portmapper" rel="Chapter" href="Rpc_portmapper.html"> <link title="Rpc_server" rel="Chapter" href="Rpc_server.html"> <link title="Rpc_auth_sys" rel="Chapter" href="Rpc_auth_sys.html"> <link title="Rpc_intro" rel="Chapter" href="Rpc_intro.html"> <link title="Rpc_mapping_ref" rel="Chapter" href="Rpc_mapping_ref.html"> <link title="Rpc_ssl" rel="Chapter" href="Rpc_ssl.html"> <link title="Rpc_xti_client" rel="Chapter" href="Rpc_xti_client.html"> <link title="Shell_sys" rel="Chapter" href="Shell_sys.html"> <link title="Shell" rel="Chapter" href="Shell.html"> <link title="Shell_uq" rel="Chapter" href="Shell_uq.html"> <link title="Shell_mt" rel="Chapter" href="Shell_mt.html"> <link title="Shell_intro" rel="Chapter" href="Shell_intro.html"> <link title="Netsmtp" rel="Chapter" href="Netsmtp.html"><title>Ocamlnet 2 Reference Manual : Shell_uq.system_handler_engine</title> </head> <body> <div class="navbar"> <a href="Shell_uq.html">Up</a> <a href="Shell_uq.call_engine.html">Next</a> </div> <center><h1>Class <a href="type_Shell_uq.system_handler_engine.html">Shell_uq.system_handler_engine</a></h1></center> <br> <pre><span class="keyword">class</span> <a name="TYPEsystem_handler_engine"></a>system_handler_engine : <code class="type"><a href="Unixqueue.event_system.html">Unixqueue.event_system</a> -> </code><code class="type">[unit]</code> <code class="type"><a href="Shell_uq.system_handler_engine_type.html">system_handler_engine_type</a></code></pre>This engine implements a <a href="Shell_sys.html#TYPEsystem_handler"><code class="code">Shell_sys.system_handler</code></a>, and can be used to watch an already started <code class="code">job_instance</code> as created by <a href="Shell_sys.html#VALrun_job"><code class="code">Shell_sys.run_job</code></a> until the job is done. It is necessary to <a href="Shell_sys.html#VALregister_job"><code class="code">Shell_sys.register_job</code></a> at the system handler. <p> When the job terminates the status of the engine changes to <code class="code">`Done ()</code>. The status of the engine does not reflect whether the job was successful <code class="code">Job_ok</code> or has failed <code class="code">Job_error</code>. <p> The engine status <code class="code">`Error</code> indicates an internal error. It is also used when callback functions raise exceptions. <p> When the engine goes to <code class="code">`Error</code> or <code class="code">`Aborted</code>, the job is terminated ( <a href="Shell_sys.html#VALabandon_job"><code class="code">Shell_sys.abandon_job</code></a> ).<br> <hr width="100%"> </body></html>
