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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3900/">https://reviewboard.asterisk.org/r/3900/</a>
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<p style="margin-top: 0;">On August 8th, 2014, 6:19 p.m. CDT, <b>rmudgett</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3900/diff/1/?file=66462#file66462line1547" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/include/asterisk/channel.h</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm">/*! \brief ast_channel_unbridged variant for when the channel isn't locked prior</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * to executing the function</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> *</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * \param chan Channel on which to check the unbridge flag</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> *</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * \return Returns 0 if the flag is down or 1 if the flag is up.</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="kt">int</span> <span class="nf">ast_channel_unbridged_locked</span><span class="p">(</span><span class="k">struct</span> <span class="n">ast_channel</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;">This goes against the established defacto pattern. _locked vs _nolock</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;">It's slightly weird with the ast_softhangup_nolock being the method for setting soft hangup. Then there's ast_check_hangup_locked which is somewhat more like this in that it functions as an accessor.
Anyway, I've switched them. I hope I got it right this time.</pre>
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<p style="margin-top: 0;">On August 8th, 2014, 6:19 p.m. CDT, <b>rmudgett</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3900/diff/1/?file=66466#file66466line1121" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/channel_internal_api.c</a>
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(Diff revision 1)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="kt">int</span> <span class="nf">ast_channel_unbridged</span><span class="p">(</span><span class="k">struct</span> <span class="n">ast_channel</span> <span class="o">*</span><span class="n">chan</span><span class="p">)</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="k">return</span> <span class="n">chan</span><span class="o">-></span><span class="n">unbridged</span><span class="p">;</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="kt">int</span> <span class="nf">ast_channel_unbridged_locked</span><span class="p">(</span><span class="k">struct</span> <span class="n">ast_channel</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;">These functions names are opposite from defacto convention: _nolock vs _locked</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;">See above. I switched this to nolock and changed the behavior so that ast_channel_unbridged locks the channel and calls the nolock version to get the results, but this seems a little similar to ast_check_hangup to me in purpose (accesses the value) and that used ast_check_hangup_locked, so that's why I went with _locked here instead of _nolock.</pre>
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<p>- Jonathan</p>
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<p>On August 8th, 2014, 5:42 p.m. CDT, Jonathan Rose wrote:</p>
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<div>Review request for Asterisk Developers, Matt Jordan and rmudgett.</div>
<div>By Jonathan Rose.</div>
<p style="color: grey;"><i>Updated Aug. 8, 2014, 5:42 p.m.</i></p>
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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-24027">ASTERISK-24027</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<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;">An odd little issue that can interrupt features and even hangup calls entirely in an unwanted fashion.
Reproduction is fairly trivial, simply have a dynamic bridge feature that plays audio or executes an AGI or something that just generally takes a little while and is sensitive to hangups.
Call into an extension that puts that feature on the channel and call another device.
Execute the feature.
While the feature is running, start mixmonitor on the channel executing the feature and watch as the feature is prematurely terminated and the call itself is hung up entirely.
Having the flag to re-evaluate the status of the bridge be a hangup flag seems to have been a little off point and trying to have everything that pays attention to hangups specifically ignore it seems a little wacky, so instead I've pulled AST_SOFTHANGUP_UNBRIDGE out of the soft hangup flags and turned it into its own thing.</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;">Performed the above reproduction steps with the patch and the call no longer hangs up and the feature completes normally. Mixmonitor captures all the audio as well.
Made sure native RTP bridges would still be re-evaluated and become simple bridges when a hook such as mixmonitor is placed on one of the bridged channels.
Ran through chan_sip and chan_pjsip testsuite tests to make sure the patch didn't introduce any failures.</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/12/main/pbx.c <span style="color: grey">(420558)</span></li>
<li>/branches/12/main/framehook.c <span style="color: grey">(420558)</span></li>
<li>/branches/12/main/channel_internal_api.c <span style="color: grey">(420558)</span></li>
<li>/branches/12/main/channel.c <span style="color: grey">(420558)</span></li>
<li>/branches/12/main/bridge_channel.c <span style="color: grey">(420558)</span></li>
<li>/branches/12/main/bridge_after.c <span style="color: grey">(420558)</span></li>
<li>/branches/12/include/asterisk/channel.h <span style="color: grey">(420558)</span></li>
<li>/branches/12/apps/app_stack.c <span style="color: grey">(420558)</span></li>
<li>/branches/12/apps/app_mixmonitor.c <span style="color: grey">(420558)</span></li>
<li>/branches/12/apps/app_chanspy.c <span style="color: grey">(420558)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3900/diff/" style="margin-left: 3em;">View Diff</a></p>
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