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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1195/">https://reviewboard.asterisk.org/r/1195/</a>
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<p style="margin-top: 0;">On May 6th, 2011, 12:17 a.m., <b>Alec Davis</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1195/diff/2/?file=16250#file16250line3050" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.4/apps/app_queue.c</a>
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(Diff revision 2)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int try_calling(struct queue_ent *qe, const char *options, char *announceoverride, const char *url, int *tries, int *noption, const char *agi)</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="cm">/* The ast_channel_datastore_remove() function could fail here if the</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * datastore was moved to another channel during a masquerade. If this is</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * the case, don't free the datastore here because later, when the channel</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * to which the datastore was moved hangs up, it will attempt to free this</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * datastore again, causing a crash</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> */</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">ast_channel_lock</span><span class="p">(</span><span class="n">qe</span><span class="o">-></span><span class="n">chan</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">datastore</span> <span class="o">&&</span> <span class="o">!</span><span class="n">ast_channel_datastore_remove</span><span class="p">(</span><span class="n">qe</span><span class="o">-></span><span class="n">chan</span><span class="p">,</span> <span class="n">datastore</span><span class="p">))</span> <span class="p">{</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">ast_channel_datastore_free</span><span class="p">(</span><span class="n">datastore</span><span class="p">);</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">ast_channel_unlock</span><span class="p">(</span><span class="n">qe</span><span class="o">-></span><span class="n">chan</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">removing this section in app_queue appears to have broken then roundrobin attempts to multiple dynamic agents.
only the first gets rung (say 15 seconds), then for the remainder (45seconds) of the queue timeout(60) noone else is atempted.
The caller still is on the line.
version SVN-branch-1.8-r315673M</pre>
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<p>On May 6th, 2011, 2:11 a.m., <b>Terry Wilson</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Gah. I'll try to reproduce tomorrow and fix.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Ok, so I stayed up to fix it. Feel free to update and test and close any issue that may have been opened about it. Off to bed.</pre>
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<p>- Terry</p>
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<p>On April 22nd, 2011, 6:12 p.m., Terry Wilson wrote:</p>
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<div>Review request for Asterisk Developers, Mark Michelson and David Vossel.</div>
<div>By Terry Wilson.</div>
<p style="color: grey;"><i>Updated 2011-04-22 18:12:01</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;">We try to avoid the situation where two phones may be forwarded to each other causing an infinite loop by storing each dialed interface in a channel datastore and checking the list before dialing out. This works, but currently breaks situations like A calls B, A transfers B to C, B transfers C to A, and A transfers C to B. Since human interaction is happening here and not an automated forwarding loop, it should be allowed.
This patch removes the dialed_interfaces datastore when a call is bridged (a suggestion from the brilliant mmichelson). If a call is being bridged, it should be safe to assume that we aren't stuck in a loop.
I determined that it was "peer" and not "chan" where the datastore was stored by trial and error. No matter what I tried, "chan" never had the datastore. I will fully admit that the features code still confuses the hell out of me even after all of these years.
Note: This bug exists also up to 1.8 (probably trunk, I just haven't tried yet)</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 tried the above scenario and it now works. I also tried forwarding a couple of phones to each other and it still broke out of the loop.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/branches/1.4/apps/app_dial.c <span style="color: grey">(314725)</span></li>
<li>/branches/1.4/apps/app_queue.c <span style="color: grey">(314725)</span></li>
<li>/branches/1.4/res/res_features.c <span style="color: grey">(314725)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1195/diff/" style="margin-left: 3em;">View Diff</a></p>
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