http://code.activestate.com/recipes/tags/file_descriptor-prediction/2010-09-22T00:11:12-07:00ActiveState Code Recipes2010-09-06T11:20:53-07:00Emilio Montihttp://code.activestate.com/recipes/users/4173642/http://code.activestate.com/recipes/577384-setting-a-file-descriptor-to-blocking-or-non-block/

<p style="color: grey"> C recipe 577384 by <a href="/recipes/users/4173642/">Emilio Monti</a> (<a href="/recipes/tags/blocking/">blocking</a>, <a href="/recipes/tags/file_descriptor/">file_descriptor</a>, <a href="/recipes/tags/non_blocking/">non_blocking</a>). Revision 2. </p> <p>A simple function to set a file descriptor (i.e. a socket) to blocking or non-blocking mode.</p>

2010-09-22T00:11:12-07:00Jan Kaliszewskihttp://code.activestate.com/recipes/users/4172762/http://code.activestate.com/recipes/577404-fcntlflock-unix-file-lock-behaviour-sampling-scrip/

<p style="color: grey"> Python recipe 577404 by <a href="/recipes/users/4172762/">Jan Kaliszewski</a> (<a href="/recipes/tags/file/">file</a>, <a href="/recipes/tags/file_descriptor/">file_descriptor</a>, <a href="/recipes/tags/file_lock/">file_lock</a>, <a href="/recipes/tags/flock/">flock</a>, <a href="/recipes/tags/process/">process</a>, <a href="/recipes/tags/thread/">thread</a>). Revision 3. </p> <p>A quick <em>fcntl.flock(fcntl.LOCK_EX | fcntl.LOCK_NB)</em> call sampling script: with <em>one file object</em> (and descriptor) or <em>separate file objects</em> (and different descriptors) pointing to the same filesystem path -- with/without <strong>threading</strong> or <strong>forking</strong>.</p> <p>It's rather exemplum-and-educational piece of code than utility-script, unless somebody has to few slots in their memory to remember that <strong>flock</strong> is file-descriptor-tacked (then quick run of the script can save web-searching) :)</p>