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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1012/">https://reviewboard.asterisk.org/r/1012/</a>
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<p>Ship it!</p>
<p>- Marquis</p>
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<p>On November 16th, 2010, 10:15 a.m., Russell Bryant wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Russell Bryant.</div>
<p style="color: grey;"><i>Updated 2010-11-16 10:15:50</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 patch addresses a regression where device states across multiple servers were not being processing completely correctly. The code works to determine the overall state by looking at the last known state of a device on each server. However, there was a regression due to some invasive rewrites of how the cache works that led to the cache only storing the last device state change for a device, regardless of which server it was on.
The code is set up to cache device state change events by ensuring that each event in the cache has a unique device name + entity ID (server ID). The code that was responsible for comparing raw information elements (which EID is) always returned a match due to a memcmp() with a length of 0.
There isn't much code to fix the actual bug. This patch also introduces a new CLI command that was very useful for debugging this problem. The command allows you to dump the contents of the event cache.</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 did testing using custom device states and manually changing their states on two different servers. I verified that the cache contents and resulting device states were now what I expected.
Klaus reported that this patch fixed his problem, as well (on issue #18280). In his case, he was testing a scenario where a SIP device was changing states on 2 different servers.</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/view.php?id=18280">18280</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/branches/1.8/include/asterisk/event.h <span style="color: grey">(295124)</span></li>
<li>/branches/1.8/main/event.c <span style="color: grey">(295124)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1012/diff/" style="margin-left: 3em;">View Diff</a></p>
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