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This is an automatically generated e-mail. To reply, visit:
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37436#file37436line97" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/bridges/bridge_builtin_features.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int grab_transfer(struct ast_channel *chan, char *exten, size_t exten_len, const char *context)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="k">static</span> <span class="kt">void</span> <span class="n">copy_caller_data</span><span class="p">(</span><span class="k">struct</span> <span class="n">ast_channel</span> <span class="o">*</span><span class="n">caller</span><span class="p">,</span> <span class="k">struct</span> <span class="n">ast_channel</span> <span class="o">*</span><span class="n">dest</span><span class="p">)</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;">You should swap the src and dest parameter order. The standard library puts the destination parameter first: strcpy(dst, src).
Assignment puts the destination first:
dst = src;
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37436#file37436line176" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/bridges/bridge_builtin_features.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="k">static</span> <span class="kt">void</span> <span class="n">blind_transfer_cb</span><span class="p">(</span><span class="k">struct</span> <span class="n">ast_channel</span> <span class="o">*</span><span class="n">new_channel</span><span class="p">,</span> <span class="kt">void</span> <span class="o">*</span><span class="n">user_data</span><span class="p">)</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;">This callback needs to know if it is redirecting a channel or the bridge. If you are redirecting a channel, you don't want to do the data copy. If you are transferring the bridge, then you do want to copy the data.
The called party of a bridge transfer is going to see the transferrer as the calling party and be slightly surprised when he finds out that the caller is not there with the parties in the bridge. In this case though what caller information can be used since an ad-hock bridge has some difficulty in knowing its party id.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37436#file37436line202" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/bridges/bridge_builtin_features.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int feature_blind_transfer(struct ast_bridge *bridge, struct ast_bridge_channel *bridge_channel, void *hook_pvt)</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm">/* BUGBUG just need to ast_async_goto the peer so this bridge will go away and not accumulate local channels and bridges if the destination is to an application. */</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="n">ast_bridge_transfer_blind</span><span class="p">(</span><span class="n">bridge_channel</span><span class="o">-></span><span class="n">chan</span><span class="p">,</span> <span class="n">exten</span><span class="p">,</span> <span class="n">context</span><span class="p">,</span> <span class="n">blind_transfer_cb</span><span class="p">,</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm">/* ast_async_goto actually is a blind transfer. */</span></pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span><span class="tb">        </span><span class="n">bridge_channel</span><span class="o">-></span><span class="n">chan</span><span class="p">);</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 DTMF blind transfer has a feature that if the channel variable GOTO_ON_BLINDXFR exists on the transferrer channel after a blind transfer, the channel goes off and runs at that location. This looks like a job for the after bridge goto/callback on the transferrer channel and a BUGBUG note to do it.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37438#file37438line4219" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/include/asterisk/channel.h</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">struct ast_channel *ast_channel_bridge_peer(struct ast_channel *chan);</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 class="ew"> </span></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;">De blob</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37438#file37438line4227" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/include/asterisk/channel.h</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">struct ast_channel *ast_channel_bridge_peer(struct ast_channel *chan);</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="k">struct</span> <span class="n">ast_channel</span> <span class="o">*</span><span class="nf">ast_channel_yank</span><span class="p">(</span><span class="k">struct</span> <span class="n">ast_channel</span> <span class="o">*</span><span class="n">yankee</span><span class="p">);</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;">Both ast_channel_yank() and ast_channel_move() need this warning:
\note absolutely _NO_ channel locks should be held before calling this function.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37438#file37438line4237" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/include/asterisk/channel.h</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">struct ast_channel *ast_channel_bridge_peer(struct ast_channel *chan);</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * \note This function is NOT intended to be used on bridged channels. If you</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"> * wish to move a channel into a bridge, you can use ast_bridge_impart() and</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"> * ast_bridge_join() and swap a channel out if desired.</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 equivalent bridge call is ast_bridge_move().</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37439#file37439line1986" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/bridging.c</a>
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<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1986</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="p">{</span></pre></td>
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<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1987</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span><span class="n">SCOPED_CHANNELLOCK</span><span class="p">(</span><span class="n">lock</span><span class="p">,</span> <span class="n">bridge_channel</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; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1988</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span><span class="n">chan_bridged</span> <span class="o">=</span> <span class="n">bridge_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; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1989</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span><span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">chan_bridged</span><span class="p">)</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; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1990</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span><span class="tb">        </span><span class="k">return</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; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1991</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </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; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1992</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span><span class="n">ao2_ref</span><span class="p">(</span><span class="n">chan_bridged</span><span class="p">,</span> <span class="o">+</span><span class="mi">1</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; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1993</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="p">}</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;">This isn't strictly necessary. The chan pointer never changes for a bridge_channel.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37439#file37439line1994" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/bridging.c</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew"><span class="tb">        </span></span></pre></td>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37439#file37439line1995" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/bridging.c</a>
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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="n">ast_channel_move</span><span class="p">(</span><span class="n">chan_unbridged</span><span class="p">,</span> <span class="n">chan_bridged</span><span class="p">);</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;">Need a BUGBUG here to use the after bridge callback function to do the channel move.
Also I think the unbridge_chan_name and chan_unbridged should be renamed to target_chan_name and chan_target respectively.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37439#file37439line4945" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/bridging.c</a>
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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="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="tb">        </span><span class="n">SCOPED_LOCK</span><span class="p">(</span><span class="n">lock</span><span class="p">,</span> <span class="n">transferee</span><span class="p">,</span> <span class="n">ast_channel_lock</span><span class="p">,</span> <span class="n">ast_channel_unlock</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="tb">        </span><span class="n">transferee_bridge_channel</span> <span class="o">=</span> <span class="n">ast_channel_internal_bridge_channel</span><span class="p">(</span><span class="n">transferee</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="tb">        </span><span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">transferee_bridge_channel</span><span class="p">)</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="tb">        </span><span class="tb">        </span><span class="k">return</span> <span class="o">-</span><span class="mi">1</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="tb">        </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="tb">        </span><span class="n">ao2_ref</span><span class="p">(</span><span class="n">transferee_bridge_channel</span><span class="p">,</span> <span class="o">+</span><span class="mi">1</span><span class="p">);</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;">This looks like a job for:
ast_channel_get_bridge_channel()
Just like in the blind transfer function above.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37439#file37439line5142" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/bridging.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">enum ast_transfer_result ast_bridge_transfer_blind(struct ast_channel *transferer,</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="tb">        </span><span class="k">return</span> <span class="n">ast_bridge_merge</span><span class="p">(</span><span class="n">to_transferee_bridge</span><span class="p">,</span> <span class="n">to_target_bridge</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="tb">        </span><span class="tb">        </span><span class="mi">1</span><span class="p">,</span> <span class="n">kick_chans</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span> <span class="o">?</span> <span class="n">AST_BRIDGE_TRANSFER_SUCCESS</span> <span class="o">:</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="tb">        </span><span class="tb">        </span><span class="n">AST_BRIDGE_TRANSFER_FAIL</span><span class="p">;</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;">If you invert the ternary expression, you won't need the "== 0".
Unfortunately, just calling ast_bridge_merge() is not going to work if one of the bridges is a parking lot. In that case you must use a local channel and make the ;2 channel join with swap. Then kick out the other transferrer channel from the other bridge.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37440#file37440line11321" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/channel.c</a>
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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="tb">        </span>struct ast_cdr *cdr;</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="tb">        </span>int amaflags;</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="tb">        </span>int state;</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;">Most places just set the sacrificial channel state as AST_STATE_DOWN. They also don't mess with CDRs. For Asterisk 12 they should not need to mess with CDRs either.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37441#file37441line7217" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/features.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static char *handle_features_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>if (ast_channel_masquerade(tmpchan, chan)) {</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>/* XXX ast_bridge_move() does not take an ast_bridge_features</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="tb">        </span> * parameter. I could presumably get the channel's bridge_channel</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="tb">        </span> * and substitute the features directly onto the bridge_channel.</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="tb">        </span> * However, because of inconsistencies with allocation of features,</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="tb">        </span> * I can't know whether I need to free the old bridge features or</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="tb">        </span> * if attempting to free the bridge features will cause a crash.</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="tb">        </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;">This comment is not necessary. Moving a channel from one bridge to another does not need nor should it mess with the ast_bridge_features. The bridge features are needed when the channel first enters the bridging system.
Interval hooks need to be rethought and we need to add an API call to put new hooks on channels while in a bridge.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37441#file37441line7253" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/features.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static char *handle_features_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)</pre></td>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7210</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>if (!play_bridge_channel) {</pre></td>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7211</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span><span class="tb">        </span>ast_log(LOG_WARNING, "Unable to play tone for channel %s. Unable to get bridge channel\n",</pre></td>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7212</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span><span class="tb">        </span><span class="tb">        </span><span class="tb">        </span>ast_channel_name(play_chan));</pre></td>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7213</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>}</pre></td>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7214</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew"><span class="tb">        </span><span class="tb">        </span></span></pre></td>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7215</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_bridge_channel_queue_playfile(play_bridge_channel, NULL, xfersound, NULL);</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;">If you are going to fail, you should not then continue and do something that you know will not work.
Also blob alert!</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37441#file37441line7365" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/features.c</a>
<span style="font-weight: normal;">
(Diff revision 1)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int do_bridge_masquerade(struct ast_channel *chan, struct ast_channel *tmpchan)</pre></td>
<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int add_to_bridge(struct ast_bridge *bridge, struct ast_channel *chan,</pre></td>
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<th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7257</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>snprintf(buf, sizeof(buf), "Unable to masquerade channel %s!", channelb);</pre></td>
<th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7291</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>if (add_to_bridge(bridge, chana, NULL, ast_true(playtone))) {</pre></td>
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<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7292</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>snprintf(buf, sizeof(buf), "Unable to add Channel1 to bridge: %s", ast_channel_name(chana));</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7258</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>astman_send_error(s, m, buf);</pre></td>
<th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7293</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>astman_send_error(s, m, buf);</pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7259</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_hangup(tmpchana);</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7260</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_hangup(tmpchanb);</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7261</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>chanb = ast_channel_unref(chanb);</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7262</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>return 0;</pre></td>
<th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7294</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>return 0;</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7263</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>}</pre></td>
<th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7295</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>}</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7264</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7296</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7265</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>chanb = ast_channel_unref(chanb);</pre></td>
<th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7297</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>ast_after_bridge_set_go_on(chanb, chanb_context, chanb_exten, chanb_priority, NULL);</pre></td>
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<th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7266</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7298</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>if (add_to_bridge(bridge, chanb, NULL, ast_true(playtone))) {</pre></td>
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<th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7267</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>/* make the channels compatible, send error if we fail doing so */</pre></td>
<th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7299</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>snprintf(buf, sizeof(buf), "Unable to add Channel2 to bridge: %s", ast_channel_name(chanb));</pre></td>
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<th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7268</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>if (ast_channel_make_compatible(tmpchana, tmpchanb)) {</pre></td>
<th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">7300</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>astman_send_error(s, m, buf);</pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7269</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_log(LOG_WARNING, "Could not make channels %s and %s compatible for manager bridge\n", ast_channel_name(tmpchana), ast_channel_name(tmpchanb));</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
</tr>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7270</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>astman_send_error(s, m, "Could not make channels compatible for manager bridge");</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7271</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_hangup(tmpchana);</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7272</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_hangup(tmpchanb);</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7273</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>return 0;</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7274</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>}</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7275</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7276</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>/* setup the bridge thread object and start the bridge */</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7277</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>if (!(tobj = ast_calloc(1, sizeof(*tobj)))) {</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7278</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_log(LOG_WARNING, "Unable to spawn a new bridge thread on %s and %s: %s\n", ast_channel_name(tmpchana), ast_channel_name(tmpchanb), strerror(errno));</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7279</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>astman_send_error(s, m, "Unable to spawn a new bridge thread");</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7280</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_hangup(tmpchana);</pre></td>
<th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">7281</font></th>
<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>ast_hangup(tmpchanb);</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>return 0;</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span><span class="tb">        </span>return 0;</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>}</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </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;">You must explicitly destroy the bridge on failure for these two exits:
ast_bridge_destroy(bridge);
Also playtone was only played for channel2 before not for both channels.</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37441#file37441line8341" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/features.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; ">static int bridge_exec(struct ast_channel *chan, const char *data)</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>if (add_to_bridge(bridge, current_dest_chan, peer_features, ast_test_flag(&opts, BRIDGE_OPT_PLAYTONE)))</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>{</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="tb">        </span>ast_bridge_features_destroy(peer_features);</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="tb">        </span>ast_bridge_features_cleanup(&chan_features);</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="tb">        </span>ast_bridge_destroy(bridge);</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="tb">        </span>goto done;</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>}</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;">Walk like an egyptian: {
}</pre>
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<a href="https://reviewboard.asterisk.org/r/2511/diff/1/?file=37442#file37442line9409" style="color: black; font-weight: bold; text-decoration: underline;">/team/mmichelson/transfer/main/pbx.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_explicit_goto(struct ast_channel *chan, const char *context, const char *exten, int priority)</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span> * the PBX, we have to make a new channel, masquerade, and start the PBX</pre></td>
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<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb">        </span>newchan = ast_channel_yank(chan);</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;">You need to check newchan for NULL.
You did not unlock chan before calling either.</pre>
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<p>- rmudgett</p>
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<p>On May 8th, 2013, 6:36 p.m. UTC, Mark Michelson wrote:</p>
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<div>Review request for Asterisk Developers and rmudgett.</div>
<div>By Mark Michelson.</div>
<p style="color: grey;"><i>Updated May 8, 2013, 6:36 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-21334">ASTERISK-21334</a>,
<a href="https://issues.asterisk.org/jira/browse/ASTERISK-21336">ASTERISK-21336</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;">This changeset contains two separate items
First, there is a new bridge function called ast_bridge_transfer_attended(). In review 2470, this was a stubbed out function, but here, the actual content has been filled in. It performs an attended transfer given the two transferer channels involved. This function is intended to handle cases where both transferer channels are in bridges, or where only one transferer channel is in a bridge. There is currently one piece of functionality missing, and it is dependent on review 2508. I cannot currently perform an attended transfer of a bridge to an unbridged call since I cannot manipulate a local channel in the appropriate way. The addition of the unreal channels in 2508 will allow me to do this.
Second, the larger of the changes was to go through places where masquerades are performed and eliminate or hide them as much as possible. Two new functions have been created in the channel API, ast_channel_yank() and ast_channel_move(). ast_channel_yank() is intended to be used when code needs to gain local control of a channel in order to redirect it someplace new. ast_channel_move() is intended to be used as a replacement for old uses of ast_channel_masquerade() and ast_do_masquerade() in order to move one channel into where another channel is executing. Neither of these functions should be needed on bridged channels since the bridging API provides ways for channels to move between bridges or perform a task upon exiting a bridge.
The highlights of this second change include changing the Bridge AMI action and Bridge dialplan applications to no longer require explicit masquerade calls in order to operate. Similarly, the masquerade call made in ast_do_pickup() has changed to use ast_channel_move() instead. ast_async_goto() has been modified to use ast_channel_yank() when redirecting an unbridged channel.
In the summary for the review, I mentioned that masquerade usage is only partially handled. There are some road blocks preventing complete masquerade hiding:
1) The blind transfer and attended transfer code in features.c currently uses masquerades. This code is more-or-less dead at this point, but since the code is still in the tree, it's still using masquerade calls. This code is slated for eventual removal.
2) There are a number of channel drivers that make use of ast_channel_masquerade() and ast_channel_transfer_masquerade() in order to perform transfers. These are slated to eventually make use of ast_bridge_transfer_blind() and ast_bridge_transfer_attended() in order to actually perform their transfers.
3) There are several channel API calls that check ast_channel_masq(chan) and will call ast_do_masquerade() if the result is non-NULL. Unfortunately, this is still needed because of the channel drivers mentioned in item 2. They simply set up the masquerade and expect the channel thread to actually perform the masquerade.
Once these three points are addressed, then ast_channel_transfer_masquerade() can be removed entirely, and ast_channel_masquerade() and ast_do_masquerade() can be combined into a single function that simply performs the masquerade.
As a final note, I also, because I was thinking about these sorts of things, changed the bridge builtin blind transfer code to use ast_bridge_transfer_blind() instead of using what it was previously using.</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 tested the Manager Bridge action and the Bridge dialplan application with these changes applied. I also did manager redirects of bridged and unbridged channels to ensure they were redirected properly.
I tested attended transfer code using chan_sip. The chan_sip changes will be in a separate review.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/team/mmichelson/transfer/bridges/bridge_builtin_features.c <span style="color: grey">(388000)</span></li>
<li>/team/mmichelson/transfer/include/asterisk/bridging.h <span style="color: grey">(388000)</span></li>
<li>/team/mmichelson/transfer/include/asterisk/channel.h <span style="color: grey">(388000)</span></li>
<li>/team/mmichelson/transfer/main/bridging.c <span style="color: grey">(388000)</span></li>
<li>/team/mmichelson/transfer/main/channel.c <span style="color: grey">(388000)</span></li>
<li>/team/mmichelson/transfer/main/features.c <span style="color: grey">(388000)</span></li>
<li>/team/mmichelson/transfer/main/pbx.c <span style="color: grey">(388000)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/2511/diff/" style="margin-left: 3em;">View Diff</a></p>
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