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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1822/">https://reviewboard.asterisk.org/r/1822/</a>
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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;">There are a bunch of places that need to be updated to handle reading AST_CONTROL_PVT_CAUSE_CODE. To name a few, wait_for_answer() in app_queue.c, handle_frame() in dial.c, ast_generic_bridge() in channel.c, remote_bridge_loop() and local_bridge_loop() in rtp_engine.c, and possibly wait_for_winner() in app_followme.c. In addition, you should also add the control frame to the switch statement in waitstream_core() of file.c so that there is no warning message about an unexpected control subclass printed.</pre>
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<a href="https://reviewboard.asterisk.org/r/1822/diff/1/?file=26414#file26414line26110" style="color: black; font-weight: bold; text-decoration: underline;">trunk/channels/chan_sip.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 handle_incoming(struct sip_pvt *p, struct sip_request *req, struct ast_sockaddr *addr, int *recount, int *nounlock)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">ast_log</span><span class="p">(</span><span class="n">LOG_ERROR</span><span class="p">,</span> <span class="s">"queued %s on %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">cause_code</span><span class="p">.</span><span class="n">code</span><span class="p">,</span> <span class="n">cause_code</span><span class="p">.</span><span class="n">chan_name</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;">Get rid of this.</pre>
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<a href="https://reviewboard.asterisk.org/r/1822/diff/1/?file=26416#file26416line4274" style="color: black; font-weight: bold; text-decoration: underline;">trunk/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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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">case</span> <span class="n">AST_CONTROL_PVT_CAUSE_CODE</span>:</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <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">char</span> <span class="n">causevar</span><span class="p">[</span><span class="mi">256</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="k">const</span> <span class="k">struct</span> <span class="n">ast_control_pvt_cause_code</span> <span class="o">*</span><span class="n">cause_code</span> <span class="o">=</span> <span class="n">data</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>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">snprintf</span><span class="p">(</span><span class="n">causevar</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">causevar</span><span class="p">),</span> <span class="s">"HASH(PVT_CAUSE,%s)"</span><span class="p">,</span> <span class="n">cause_code</span><span class="o">-></span><span class="n">chan_name</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="n">ast_channel_ref</span><span class="p">(</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="n">ast_channel_unlock</span><span class="p">(</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="n">pbx_builtin_setvar_helper</span><span class="p">(</span><span class="n">chan</span><span class="p">,</span> <span class="n">causevar</span><span class="p">,</span> <span class="n">cause_code</span><span class="o">-></span><span class="n">code</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="n">ast_channel_lock</span><span class="p">(</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="n">ast_channel_unref</span><span class="p">(</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="n">res</span> <span class="o">=</span> <span class="mi">0</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="k">break</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="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 case is out of place here. This switch statement is here for the intention of getting tones to play to a channel. There is another switch statement higher up in ast_indicate_data() where AST_CONTROL_CONNECTED_LINE and AST_CONTROL_REDIRECTING have some special handling done. That seems like a better place for the AST_CONTROL_PVT_CAUSE_CODE to go. Having it up there would also allow you to return earlier, meaning not as many wasted cycles either.</pre>
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<a href="https://reviewboard.asterisk.org/r/1822/diff/1/?file=26416#file26416line4281" style="color: black; font-weight: bold; text-decoration: underline;">trunk/main/channel.c</a>
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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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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">ast_channel_ref</span><span class="p">(</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="n">ast_channel_unlock</span><span class="p">(</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="n">pbx_builtin_setvar_helper</span><span class="p">(</span><span class="n">chan</span><span class="p">,</span> <span class="n">causevar</span><span class="p">,</span> <span class="n">cause_code</span><span class="o">-></span><span class="n">code</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>
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<td bgcolor="#c5ffc4" 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">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>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">ast_channel_unref</span><span class="p">(</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;">This pattern is unnecessary here. You can safely call pbx_builtin_setvar_helper() without having to do the ref-and-lock waltz.</pre>
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<p>- Mark</p>
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<p>On March 20th, 2012, 10:43 a.m., opticron wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By opticron.</div>
<p style="color: grey;"><i>Updated March 20, 2012, 10:43 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;">Add PVT_CAUSE as a drop-in replacement for SIP_CAUSE that does not incur the overhead of the MASTER_CHANNEL dialplan function. This feature uses control frames to pass the data and creates a mechanism by which any channel driver can report cause information. This implementation includes only SIP, but implementations for other channel drivers will be available in the next month.</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;">Verified that this functions identically to SIP_CAUSE in single-channel dials, forked dials, and forked dials behind a local dial.
Sample dialplan:
[foo]
exten => s,1,Dial(SIP/bar)
exten => h,1,noop()
exten => h,n,set(PVT_CAUSE_STRING=${HASHKEYS(PVT_CAUSE)})
; start loop
exten => h,n(pvt_begin),noop()
; check exit condition (no more array to check)
exten => h,n,gotoif($[${LEN(${PVT_CAUSE_STRING})} = 0]?pvt_exit)
; pull the next item
exten => h,n,set(ARRAY(item)=${PVT_CAUSE_STRING})
exten => h,n,set(PVT_CAUSE_STRING=${PVT_CAUSE_STRING:${LEN(${item})}})
; display the channel ID and cause code
exten => h,n,noop(got channel ID ${item} with pvt cause ${HASH(PVT_CAUSE,${item})})
; check exit condition (no more array to check)
exten => h,n,gotoif($[${LEN(${PVT_CAUSE_STRING})} = 0]?pvt_exit)
; we still have entries to process, so strip the leading comma
exten => h,n,set(PVT_CAUSE_STRING=${PVT_CAUSE_STRING:1})
; go back to the beginning of the loop
exten => h,n,goto(pvt_begin)
exten => h,n(pvt_exit),noop(All PVT_CAUSE entries processed)</pre>
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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/SWP-4221">SWP-4221</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">
<li>trunk/apps/app_dial.c <span style="color: grey">(359891)</span></li>
<li>trunk/channels/chan_sip.c <span style="color: grey">(359891)</span></li>
<li>trunk/include/asterisk/frame.h <span style="color: grey">(359891)</span></li>
<li>trunk/main/channel.c <span style="color: grey">(359891)</span></li>
<li>trunk/main/features.c <span style="color: grey">(359891)</span></li>
</ul>
<p><a href="https://reviewboard.asterisk.org/r/1822/diff/" style="margin-left: 3em;">View Diff</a></p>
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