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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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<p style="margin-top: 0;">On March 23rd, 2012, 10:49 a.m., <b>Tilghman Lesher</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1822/diff/2/?file=26738#file26738line330" style="color: black; font-weight: bold; text-decoration: underline;">trunk/include/asterisk/frame.h</a>
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(Diff revision 2)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">struct ast_control_pvt_cause_code {</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">330</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="kt">char</span> <span class="n">code</span><span class="p">[</span><span class="mi">80</span><span class="p">];</span> <span class="cm">/*!< Tech-specific cause code information, beginning with the name of the tech */</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;">Think we could move this to the end and make it 'char code[1]' instead? (then specify the exact size of the cause code to alloca). This would mean mostly shorter frames, but it would also permit the flexibility for longer strings. Chan_iax, in particular, likes sending textual causes.</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;">Done.</pre>
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<p>- opticron</p>
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<p>On March 23rd, 2012, 10 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 23, 2012, 10 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>
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<li>trunk/funcs/func_frame_trace.c <span style="color: grey">(360259)</span></li>
<li>trunk/include/asterisk/frame.h <span style="color: grey">(360259)</span></li>
<li>trunk/main/channel.c <span style="color: grey">(360259)</span></li>
<li>trunk/main/dial.c <span style="color: grey">(360259)</span></li>
<li>trunk/main/features.c <span style="color: grey">(360259)</span></li>
<li>trunk/main/file.c <span style="color: grey">(360259)</span></li>
<li>trunk/main/rtp_engine.c <span style="color: grey">(360259)</span></li>
<li>trunk/CHANGES <span style="color: grey">(360259)</span></li>
<li>trunk/UPGRADE.txt <span style="color: grey">(360259)</span></li>
<li>trunk/apps/app_dial.c <span style="color: grey">(360259)</span></li>
<li>trunk/apps/app_followme.c <span style="color: grey">(360259)</span></li>
<li>trunk/apps/app_queue.c <span style="color: grey">(360259)</span></li>
<li>trunk/channels/chan_sip.c <span style="color: grey">(360259)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1822/diff/" style="margin-left: 3em;">View Diff</a></p>
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