er</code>. This is a heavy-duty file logger: it performs log writing asynchronously in a separate thread and is rotation-friendly. (It even will, optionally, capture SIGHUP itself and reopen the file, so that your rotate daemon might rename the now-completed log file, moving it out of the way and archiving it or what-not.) <code>Async_file_logger</code> is meant for heavy-duty logging (and as of this writing may be gaining more features such as gzip-on-the-fly).</p>
<h2>Logging verbosity setting </h2>
<p >R