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      This is an automatically generated e-mail. To reply, visit:
      <a href="https://reviewboard.asterisk.org/r/1559/">https://reviewboard.asterisk.org/r/1559/</a>
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<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
 <p style="margin-top: 0;">On November 3rd, 2011, 4:32 p.m., <b>schmidts</b> wrote:</p>
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    <a href="https://reviewboard.asterisk.org/r/1559/diff/1/?file=21572#file21572line4392" style="color: black; font-weight: bold; text-decoration: underline;">branches/1.8/main/channel.c</a>
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     (Diff revision 1)

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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">int ast_indicate_data(struct ast_channel *chan, int _condition,</pre></td>

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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">4392</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">condition</span> <span class="o">==</span> <span class="n">AST_CONTROL_UNHOLD</span> <span class="o">||</span> <span class="n">_condition</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">4392</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">condition</span> <span class="o">==</span> <span class="n">AST_CONTROL_UNHOLD</span> <span class="o">||</span> <span class="n">_condition</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="cm">/* Visible indication is cleared/stopped. */</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">4393</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="cm">/* Visible indication is cleared/stopped. */</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">4394</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">chan</span><span class="o">-&gt;</span><span class="n">visible_indication</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">4394</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="n">chan</span><span class="o">-&gt;</span><span class="n">visible_indication</span> <span class="o">=</span> <span class="mi">0</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;">i am not sure if its a good idea to only look at the _condition and stop playtones.
AFAIK chan-&gt;tech-&gt;indicate looks mostly on the visible_indication which is here set to 0 if _condition is &lt; 0.

this could means chan-&gt;tech-&gt;indicate is doing everything fine with indication 0 but you maybe do stop_playtones twice and i dont know if this could lead to other problems.

if this is a reproduceable problem you should try to see what happens in the used chan-&gt;tech-&gt;indicate function. maybe you can see some difference there between condition and visible_indication.

</pre>
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 <p>On November 5th, 2011, 6:54 p.m., <b>may213</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;">Thank for review.

Neither channel driver look to visible_indication:

may@vl:~/asterisk/x/original/trunk&gt; find channels/ -name &#39;*.[ch]&#39; | xargs grep visible_indication
may@vl:~/asterisk/x/original/trunk&gt;


ast_playtones_stop just call ast_deactivate_generator that remove generator only if exists so
there will not problem even if it will called twice:

----
void ast_deactivate_generator(struct ast_channel *chan)
{
        ast_channel_lock(chan);
        if (chan-&gt;generatordata) {
        ....
        }
        ast_channel_unlock(chan);
----

br
</pre>
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</blockquote>
<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;">The visible_indication is used by masquerade so it can maintain visible tones like ringback on the new channel.  Channel drivers don&#39;t care about it since they are concerned with the current indication being processed.</pre>
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<p>- rmudgett</p>


<br />
<p>On November 2nd, 2011, 2:47 a.m., may213 wrote:</p>






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<div>Review request for Asterisk Developers.</div>
<div>By may213.</div>


<p style="color: grey;"><i>Updated Nov. 2, 2011, 2:47 a.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;">ast_indicate_data function must call ast_stop_playtones when condition arg is negative, but don&#39;t call ast_stop_playtones if indicate function of channel driver return zero result.

If channel-&gt;tech-&gt;indicate return zero then processing go to indicate_cleanup before processing negative condition arg, it&#39;s bug
because we must stop tone generator if condition arg is negative independent of returned from tech-&gt;indicate value.

The patch call ast_stop_playtones before processing indicate return value.</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;">app_queue work correctly with &#39;r&#39; option on dahdi channel with patch.</pre>
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<div style="margin-top: 1.5em;">
 <b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>


 <a href="https://issues.asterisk.org/jira/browse/18803">18803</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/main/channel.c <span style="color: grey">(338895)</span></li>

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<p><a href="https://reviewboard.asterisk.org/r/1559/diff/" style="margin-left: 3em;">View Diff</a></p>




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