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<a href="./Home">MLton 20201002</a>
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<h1>MLtonSyslog</h1>
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<div class="content"><div class="highlight"><pre><span></span><span class="k">signature</span><span class="w"> </span><span class="n">MLTON_SYSLOG</span><span class="w"> </span><span class="p">=</span><span class="w"></span>
<span class="w">   </span><span class="k">sig</span><span class="w"></span>
<span class="w">      </span><span class="k">type</span><span class="w"> </span><span class="n">openflag</span><span class="w"></span>

<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">CONS</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">openflag</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">NDELAY</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">openflag</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">NOWAIT</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">openflag</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">ODELAY</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">openflag</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">PERROR</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">openflag</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">PID</span><span class="w">      </span><span class="p">:</span><span class="w"> </span><span class="n">openflag</span><span class="w"></span>

<span class="w">      </span><span class="k">type</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>

<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">AUTHPRIV</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">CRON</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">DAEMON</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">KERN</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LOCAL0</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LOCAL1</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LOCAL2</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LOCAL3</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LOCAL4</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LOCAL5</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LOCAL6</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LOCAL7</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">LPR</span><span class="w">      </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">MAIL</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">NEWS</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">SYSLOG</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">USER</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">UUCP</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">facility</span><span class="w"></span>

<span class="w">      </span><span class="k">type</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>

<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">EMERG</span><span class="w">    </span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">ALERT</span><span class="w">    </span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">CRIT</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">ERR</span><span class="w">      </span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">WARNING</span><span class="w">  </span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">NOTICE</span><span class="w">   </span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">INFO</span><span class="w">     </span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">DEBUG</span><span class="w">    </span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"></span>

<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">closelog</span><span class="p">:</span><span class="w"> </span><span class="n">unit</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">unit</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">log</span><span class="p">:</span><span class="w"> </span><span class="n">loglevel</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">unit</span><span class="w"></span>
<span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">openlog</span><span class="p">:</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="n">openflag</span><span class="w"> </span><span class="n">list</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="n">facility</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">unit</span><span class="w"></span>
<span class="w">   </span><span class="k">end</span><span class="w"></span>
</pre></div></div></div>
<div class="paragraph"><p><span class="monospaced">MLton.Syslog</span> is a complete interface to the system logging
facilities.  See <span class="monospaced">man 3 syslog</span> for more details.</p></div>
<div class="ulist"><ul>
<li>
<p>
<span class="monospaced">closelog ()</span>
</p>
<div class="paragraph"><p>closes the connection to the system logger.</p></div>
</li>
<li>
<p>
<span class="monospaced">log (l, s)</span>
</p>
<div class="paragraph"><p>logs message <span class="monospaced">s</span> at a loglevel <span class="monospaced">l</span>.</p></div>
</li>
<li>
<p>
<span class="monospaced">openlog (name, flags, facility)</span>
</p>
<div class="paragraph"><p>opens a connection to the system logger. <span class="monospaced">name</span> will be prefixed to
each message, and is typically set to the program name.</p></div>
</li>
</ul></div>
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