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This is an automatically generated e-mail. To reply, visit:
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<p style="margin-top: 0;">On July 21st, 2014, 1:14 p.m. EDT, <b>Mark Michelson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3759/diff/3/?file=64859#file64859line3522" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/channels/chan_sip.c</a>
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(Diff revision 3)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void *registry_unref(struct sip_registry *reg, char *tag)</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void *registry_unref(struct sip_registry *reg, char *tag)</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">{</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>ast_debug(3, "SIP Registry %s: refcount now %u\n", reg->hostname, reg->refcount - 1);</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>ASTOBJ_UNREF(reg, sip_registry_destroy);</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>return NULL;</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">}</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">/*! \brief Add object reference to SIP registry */</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static struct sip_registry *registry_addref(struct sip_registry *reg, char *tag)</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">{</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>ast_debug(3, "SIP Registry %s: refcount now %u\n", reg->hostname, reg->refcount + 1);</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>return ASTOBJ_REF(reg);<span class="tb"> </span>/* Add pointer to registry in packet */</pre></td>
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<td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">}</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;">Heh, it's a bit late for this now, but it would have probably saved you a bunch of searching and replacing to just change the definition of registry_unref() and registry_addref() to use ao2 in their implementations.</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;">I knew this, but decided to put the work in to use the best ao2 function for each use. I do not like the use of intermediary functions or macro's that simply link to ao2 operations.</pre>
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<p style="margin-top: 0;">On July 21st, 2014, 1:14 p.m. EDT, <b>Mark Michelson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3759/diff/3/?file=64859#file64859line6543" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/channels/chan_sip.c</a>
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(Diff revision 3)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int sip_call(struct ast_channel *ast, const char *dest, int timeout)</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>if (mwi->call) {</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>mwi->call->mwi = NULL;</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>mwi->call->mwi = NULL;</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>/* XXX shouldn't this just unref mwi->call ? */</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>sip_destroy(mwi->call);</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>sip_destroy(mwi->call);</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 agree with this comment. Since mwi->call was created via sip_alloc(), destruction of it should be accomplished with dialog_unref()</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;">I've removed this comment and will post a separate review to fix this in 1.8+.
OTOH I think this code is actually unreachable, we have a circular link - mwi->call holds a reference to mwi->call->mwi. I ran testsuite - tests/channels/SIP/subscribe before and after this patch, and mwi leaks.</pre>
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<p style="margin-top: 0;">On July 21st, 2014, 1:14 p.m. EDT, <b>Mark Michelson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3759/diff/3/?file=64859#file64859line33324" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/channels/chan_sip.c</a>
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(Diff revision 3)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int registry_hash_cb(const void *obj, const int flags)</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>const struct sip_registry *reg = obj;</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>return ast_str_case_hash(reg->configvalue);</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int registry_cmp_cb(void *obj, void *arg, int flags)</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>struct sip_registry *reg1 = obj, *reg2 = arg;</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>return !strcasecmp(reg1->configvalue, reg2->configvalue) ? CMP_MATCH | CMP_STOP : 0;</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;">You sometimes search for sip_registrys using OBJ_KEY, but your hash and cmp callbacks do not account for a search key being passed to the callback instead of a sip_registry.
Use the templates on this wiki page https://wiki.asterisk.org/wiki/pages/viewpage.action?pageId=25919686 to define your hash and comparison callbacks and you should be good to go.</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;">I actually only ever used OBJ_KEY. I've fixed the hash/cmp callbacks to follow the template, supporting OBJ_SEARCH_OBJECT in case it's used in the future. I've also replaced the use deprecated OBJ_KEY with OBJ_SEARCH_KEY.
When I originally ran the testsuite this was testing for reg1->name, which was a char[80] defined as the first field. Since ®1->name == reg1, it didn't cause a problem. Now that reg1->configvalue is a stringfield, I think this would have caused a segfault, though I didn't get one with the testsuite.</pre>
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<p>- Corey</p>
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<p>On July 21st, 2014, 11:52 p.m. EDT, Corey Farrell wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Corey Farrell.</div>
<p style="color: grey;"><i>Updated July 21, 2014, 11:52 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-24067">ASTERISK-24067</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;">Upgrade all ASTOBJ objects in chan_sip to ao2.</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;">Full testsuite run.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/trunk/channels/sip/include/sip.h <span style="color: grey">(419127)</span></li>
<li>/trunk/channels/chan_sip.c <span style="color: grey">(419127)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3759/diff/" style="margin-left: 3em;">View Diff</a></p>
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