http://code.activestate.com/recipes/tags/io/2014-07-12T16:58:06-07:00ActiveState Code Recipes2014-07-12T16:58:06-07:00Mike 'Fuzzy' Partinhttp://code.activestate.com/recipes/users/4179778/http://code.activestate.com/recipes/578034-rdd-mostly-broken-but-shows-how-to-do-a-few-things/

<p style="color: grey"> Ruby recipe 578034 by <a href="/recipes/users/4179778/">Mike 'Fuzzy' Partin</a> (<a href="/recipes/tags/dd/">dd</a>, <a href="/recipes/tags/ftp/">ftp</a>, <a href="/recipes/tags/io/">io</a>, <a href="/recipes/tags/net_ftp/">net_ftp</a>, <a href="/recipes/tags/pipe/">pipe</a>, <a href="/recipes/tags/pipelining/">pipelining</a>, <a href="/recipes/tags/popen/">popen</a>, <a href="/recipes/tags/subprocess/">subprocess</a>). Revision 3. </p> <p>Meant to be a slightly more "advanced" dd utility. Supporting FTP/File/STDIN as input streams, and File/STDOUT/PIPE as output targets, and sporting a progress display (very rudimentary atm), add lets you combine network, and file or pipe processing in a single command. But kind of ended up a mess, see the <a href="https://code.activestate.com/recipes/578907-python-awesome-dd/?in=user-4179778">Python version</a> which is pretty clean.</p>

2011-02-08T20:59:23-08:00Dima Tisnekhttp://code.activestate.com/recipes/users/4068698/http://code.activestate.com/recipes/577569-nbd-server-in-python/

<p style="color: grey"> Python recipe 577569 by <a href="/recipes/users/4068698/">Dima Tisnek</a> (<a href="/recipes/tags/analyze/">analyze</a>, <a href="/recipes/tags/block/">block</a>, <a href="/recipes/tags/device/">device</a>, <a href="/recipes/tags/disk/">disk</a>, <a href="/recipes/tags/io/">io</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/nbd/">nbd</a>, <a href="/recipes/tags/network/">network</a>, <a href="/recipes/tags/python/">python</a>). </p> <p>Linux Network Block Device server in Python</p> <p>This is a simplified version based on Kragen Sitaker's <a href="http://lists.canonical.org/pipermail/kragen-hacks/2004-May/000397.html" rel="nofollow">http://lists.canonical.org/pipermail/kragen-hacks/2004-May/000397.html</a></p> <p>Close is never actually called, at least not on the same connection -- linux C nbd-client -d seems to stall, perhaps it tries to open another socket?</p> <p>This code doesn't check for error conditions, failed reads/writes, past end of disk, etc.</p> <p>It prints io requests, you can analyze filesystem and user program io patterns.</p>