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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/2217/">https://reviewboard.asterisk.org/r/2217/</a>
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<p>Ship it!</p>
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Minor nits, otherwise it's good. Whether you decide to keep the compile time test or switch it to a runtime test, I'm good with the patch.</pre>
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<a href="https://reviewboard.asterisk.org/r/2217/diff/3-4/?file=32269#file32269line103" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/main/uuid.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">struct ast_uuid {</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew"> </span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Begone, extra tab!</pre>
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<a href="https://reviewboard.asterisk.org/r/2217/diff/3-4/?file=32269#file32269line186" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/main/uuid.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void ast_uuid_init(void)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cp">#ifndef HAVE_DEV_URANDOM</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The test in libuuid is a runtime test instead of a compile time test. I don't know if that's an important difference, but that is a difference.</pre>
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<a href="https://reviewboard.asterisk.org/r/2217/diff/3-4/?file=32269#file32269line193" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/main/uuid.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void ast_uuid_init(void)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="s">" 2. Random number generation is not guaranteed to be as random, meaning there is</span><span class="se">\n</span><span class="s">"</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="s">" a very remote chance you may see duplicate UUIDs.</span><span class="se">\n</span><span class="s">"</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The use of the lock ensures correctness for UUID generation. Other uses of rand() in the system may return the same number that's used in creating a UUID, but that shouldn't matter for UUID generation.</pre>
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<p>- David</p>
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<p>On November 29th, 2012, 12:30 p.m., Mark Michelson wrote:</p>
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<div>Review request for Asterisk Developers, Matt Jordan and David Lee.</div>
<div>By Mark Michelson.</div>
<p style="color: grey;"><i>Updated Nov. 29, 2012, 12:30 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This is the first of many parts of the overall goal of improving Asterisk APIs. This adds a UUID API to Asterisk, eventually to be used as a method of uniquely identifying channels and potentially other objects.
The implementation here uses libuuid, which is packaged by all major Linux distributions. The API is basically a wrapper around libuuid's API, but it hides all implementation details in case we want to switch out libraries at some point.
Licensing for libuuid is a bit confusing. On one hand, this online man page (http://linux.die.net/man/3/libuuid) claims that the library is distributed under the LGPL version 2. However, when I downloaded the source for the library on my machine, the code had the 3-clause BSD license printed in the source. In either case, I believe use of external library is license-compatible with Asterisk.
Regarding specific implementation decisions, I think comments in the code should explain why I chose to do things certain ways. Please let me know if anything should be done differently or if you have ideas for tests beyond what I have already included.
I have no idea what is up with the changes listed in autoconfig.h.in. Those changes showed up when I ran the bootstrap.sh script after changing configure.ac. </pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I have included a set of unit tests that exercise all the APIs. They pass when run locally.</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/jira/browse/ASTERISK-20725">ASTERISK-20725</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/trunk/configure <span style="color: grey">(UNKNOWN)</span></li>
<li>/trunk/configure.ac <span style="color: grey">(376832)</span></li>
<li>/trunk/include/asterisk/autoconfig.h.in <span style="color: grey">(376832)</span></li>
<li>/trunk/include/asterisk/uuid.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>/trunk/main/Makefile <span style="color: grey">(376832)</span></li>
<li>/trunk/main/asterisk.c <span style="color: grey">(376832)</span></li>
<li>/trunk/main/uuid.c <span style="color: grey">(PRE-CREATION)</span></li>
<li>/trunk/tests/test_uuid.c <span style="color: grey">(PRE-CREATION)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/2217/diff/" style="margin-left: 3em;">View Diff</a></p>
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