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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3184/">https://reviewboard.asterisk.org/r/3184/</a>
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<a href="https://reviewboard.asterisk.org/r/3184/diff/7-8/?file=53673#file53673line1634" style="color: black; font-weight: bold; text-decoration: underline;">branches/12/main/sorcery.c</a>
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(Diff revisions 7 - 8)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">void ast_sorcery_unref(struct ast_sorcery *sorcery)</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1634</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><span class="k">if</span> <span class="p">(</span><span class="n">ao2_ref</span><span class="p">(</span><span class="n">sorcery</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</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="tb"> </span><span class="tb"> </span><span class="k">if</span> <span class="p">(</span><span class="n">ao2_ref</span><span class="p">(</span><span class="n">sorcery</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">)</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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">ao2_<span class="hl">unlin</span>k</span><span class="p">(</span><span class="n">instances</span><span class="p"><span class="hl">,</span></span><span class="hl"> </span><span class="n"><span class="hl">sorcery</span></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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">ao2_<span class="hl">wrloc</span>k</span><span class="p">(</span><span class="n">instances</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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">ao2_unlink_flags</span><span class="p">(</span><span class="n">instances</span><span class="p">,</span> <span class="n">sorcery</span><span class="p">,</span> <span class="n">OBJ_NOLOCK</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="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">ao2_unlock</span><span class="p">(</span><span class="n">instances</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="tb"> </span><span class="tb"> </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="tb"> </span><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;">Unfortunately, to avoid the race you have to lock the container before unrefing sorcery.
ao2_wrlock()
if (ao2_ref()) {
ao2_unlink()
}
ao2_unlock()</pre>
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<p>- rmudgett</p>
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<p>On February 6th, 2014, 6:59 p.m. CST, George Joseph wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By George Joseph.</div>
<p style="color: grey;"><i>Updated Feb. 6, 2014, 6:59 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-22537">ASTERISK-22537</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;">Create sorcery instance registry as a precursor to creating a generic dialplan function that can retrieve parameters from a sorcery-based config file.
ast_sorcery_init now creates a hashtab as a registry.
ast_sorcery_open now checks the hashtab for an existing sorcery instance matching the caller's module name. If it finds one, it bumps the refcount and returns it. If not, it creates a new sorcery instance, adds it to the hashtab, then returns it.
ast_sorcery_retrieve_by_module_name is a new function that does a hashtab lookup by module name. It can be called by the future dialplan function.
A side effect of this patch is that a module can only have 1 sorcery instance (because it's the key for the hashtab). res_pjsip/config_system needed a small change to share the main res_pjsip sorcery instance.
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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;">Made sure that users of sorcery (mostly res_pjsip) continued to load their configs correctly.
Made sure there were no ill effects on res_pjsip from config_system sharing the same sorcery instance as the rest of the pjsip infrastructure.
Made sure that config_system was properly marked as 'not reloadable' and that it was maintaining it's original values when res_pjsip was reloaded.
ernie*CLI> test execute category /main/sorcery/
Running all available tests matching category /main/sorcery/
START /main/sorcery/ - configuration_file_wizard_retrieve_multiple_all
END /main/sorcery/ - configuration_file_wizard_retrieve_multiple_all Time: <1ms Result: PASS
[snip]
START /main/sorcery/ - open
END /main/sorcery/ - open Time: <1ms Result: PASS
START /main/sorcery/ - wizard_registration
END /main/sorcery/ - wizard_registration Time: <1ms Result: PASS
43 Test(s) Executed 43 Passed 0 Failed
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>branches/12/tests/test_sorcery.c <span style="color: grey">(407566)</span></li>
<li>branches/12/res/res_pjsip/include/res_pjsip_private.h <span style="color: grey">(407566)</span></li>
<li>branches/12/res/res_pjsip/config_system.c <span style="color: grey">(407566)</span></li>
<li>branches/12/res/res_pjsip.c <span style="color: grey">(407566)</span></li>
<li>branches/12/main/sorcery.c <span style="color: grey">(407566)</span></li>
<li>branches/12/include/asterisk/sorcery.h <span style="color: grey">(407566)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3184/diff/" style="margin-left: 3em;">View Diff</a></p>
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