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<a href="https://reviewboard.asterisk.org/r/2873/diff/1/?file=46079#file46079line489" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/astobj2.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 internal_ao2_ref(void *user_data, int delta, const char *file, int line, const char *func)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cp">#ifdef AO2_DEBUG</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="cm">/*</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="cm">/*</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * For safety, zero-out the astobj2_lock header and also the</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * For safety, zero-out the astobj2_lock header and also the</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * first word of the user-data, which we make sure is always</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * first word of the user-data, which we make sure is always</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * allocated.</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * allocated.</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> */</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> */</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="n">memset</span><span class="p">(</span><span class="n">obj_mutex</span><span class="p">,</span> <span class="sc">'\0'</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="o">*</span><span class="n">obj_mutex</span><span class="p">)</span> <span class="o">+</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">void</span> <span class="o">*</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="n">memset</span><span class="p">(</span><span class="n">obj_mutex</span><span class="p">,</span> <span class="sc">'\0'</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="o">*</span><span class="n">obj_mutex</span><span class="p">)</span> <span class="o">+</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">void</span> <span class="o">*</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="cp">#endif</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 can just delete this and the other places so MALLOC_DEBUG can catch the fence violations.</pre>
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<a href="https://reviewboard.asterisk.org/r/2873/diff/1/?file=46079#file46079line587" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/astobj2.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static void *internal_ao2_alloc(size_t data_size, ao2_destructor_fn destructor_fn, unsigned int options, const char *file, int line, const char *func)</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="k">if</span> <span class="p">(</span><span class="n">data_size</span> <span class="o"><</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">void</span> <span class="o">*</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="k">if</span> <span class="p">(</span><span class="n">data_size</span> <span class="o"><</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">void</span> <span class="o">*</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="cm">/*</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="cm">/*</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * We always alloc at least the size of a void *,</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * We always alloc at least the size of a void *,</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * for debugging purposes.</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> * for debugging purposes.</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> */</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="tb"> </span><span class="tb"> </span> */</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="n">data_size</span> <span class="o">=</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">void</span> <span class="o">*</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="n">data_size</span> <span class="o">=</span> <span class="k">sizeof</span><span class="p">(</span><span class="kt">void</span> <span class="o">*</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="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="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;">Delete this as well.</pre>
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<a href="https://reviewboard.asterisk.org/r/2873/diff/1/?file=46080#file46080line291" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/stasis.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">struct stasis_subscription *internal_stasis_subscribe(</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="tb"> </span><span class="tb"> </span> * numbers of subscribers, we'll probably want to consier</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;">consier</pre>
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<a href="https://reviewboard.asterisk.org/r/2873/diff/1/?file=46080#file46080line524" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/stasis.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">struct dispatch {</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="n">dispatch_dtor</span><span class="p">(</span><span class="n">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;">Pass dispatch not data.</pre>
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<a href="https://reviewboard.asterisk.org/r/2873/diff/1/?file=46082#file46082line91" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/stasis_message_router.c</a>
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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="k">const</span> <span class="k">struct</span> <span class="n">stasis_message_route</span> <span class="o">*</span><span class="n">route</span> <span class="o">=</span> <span class="n">obj</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="kt">size_t</span> <span class="n">i</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;">Don't use single character variable names.
Suggest use idx here.</pre>
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<a href="https://reviewboard.asterisk.org/r/2873/diff/1/?file=46082#file46082line107" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/stasis_message_router.c</a>
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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="k">const</span> <span class="k">struct</span> <span class="n">stasis_message_route</span> <span class="o">*</span><span class="n">left</span> <span class="o">=</span> <span class="n">obj</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="kt">size_t</span> <span class="n">i</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;">Idem.</pre>
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<a href="https://reviewboard.asterisk.org/r/2873/diff/1/?file=46082#file46082line220" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/stasis_message_router.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">struct stasis_message_router *stasis_message_router_create(</pre></td>
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<th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">170</font></th>
<td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="n">router</span><span class="o">-></span><span class="n">routes</span> <span class="o">=</span> <span class="n">ao2_container_alloc</span><span class="p">(</span><span class="n">ROUTE_TABLE_BUCKETS</span><span class="p">,</span> <span class="n">route_hash</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="n">router</span><span class="o">-></span><span class="n">routes</span> <span class="o">=</span> <span class="n">ast_calloc</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">router</span><span class="o">-></span><span class="n">routes</span><span class="p">));</span></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><span class="tb"> </span><span class="n">route_cmp</span><span class="p">);</span></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="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">router</span><span class="o">-></span><span class="n">routes</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="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">router</span><span class="o">-></span><span class="n">routes</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">return</span> <span class="nb">NULL</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">return</span> <span class="nb">NULL</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="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="p">}</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></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">router</span><span class="o">-></span><span class="n">cache_routes</span> <span class="o">=</span> <span class="n">ao2_container_alloc</span><span class="p">(</span><span class="n">ROUTE_TABLE_BUCKETS</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="n">router</span><span class="o">-></span><span class="n">cache_routes</span> <span class="o">=</span> <span class="n">ast_calloc</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">router</span><span class="o">-></span><span class="n">routes</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 want sizeof(*router->routes) and sizeof(*router->cache_routes) respectively. Otherwise you are allocating an incorrect size.</pre>
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<a href="https://reviewboard.asterisk.org/r/2873/diff/1/?file=46083#file46083line678" style="color: black; font-weight: bold; text-decoration: underline;">/branches/12/main/taskprocessor.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_taskprocessor_push(struct ast_taskprocessor *tps, int (*task_exe)(void *datap), void *datap)</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="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">t</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="n">ao2_unlock</span><span class="p">(</span><span class="n">tps</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">return</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="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;">Is this a ref leak of tps here?</pre>
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<p>- rmudgett</p>
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<p>On September 20th, 2013, 4:53 p.m. UTC, David Lee wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By David Lee.</div>
<p style="color: grey;"><i>Updated Sept. 20, 2013, 4:53 p.m.</i></p>
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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 patch addresses several performance problems that were found in
the initial performance testing of Asterisk 12.
It turns out that we don't have many subscribers to Stasis topics in
the system. We have lots of caching and forwarding, but those don't
use the threadpool. Since we have such a limited number subscribers,
it made sense to simply use taskprocessors and allocate a thread per
subscriber instead.
The Stasis dispatch object was allocated as an AO2 object, even though
it has a very confined lifecycle. This was replaced with a straight
ast_malloc().
The Stasis message router was spending an inordinate amount of time
searching hash tables. In this case, most of our routers had 6 or
fewer routes in them to begin with. This was replaced with an array
that's searched linearly for the route.
We more heavily rely on AO2 objects in Asterisk 12, and the memset()
in ao2_ref() actually became noticeable on the profile. This was
#ifdef'ed to only run when AO2_DEBUG was enabled.
Finally, since we're more reliant on the taskprocessor, it was
optimized to reduce the number of times it was locking/unlocking the
tps mutex.</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;">Using the setup below, sipp was run against the 12 branch both with
and without my changes.
==
[test-server]$ cat extensions.conf
[performance]
exten => service,1,Answer
exten => service,n,Wait(1)
exten => service,n,Hangup
[test-server]$ cat sip.conf
[perf](!)
type=peer
qualify=no
disallow=all
allow=g722
allow=ulaw
insecure=invite,port
context=performance
[test-client](perf)
host=test-client
Simple sipp scenario:
[test-client]$ sipp -sn uac -l 100 -r 50 tests-server</pre>
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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/configs/stasis.conf.sample <span style="color: grey">(399529)</span></li>
<li>/branches/12/include/asterisk/stasis.h <span style="color: grey">(399529)</span></li>
<li>/branches/12/main/astobj2.c <span style="color: grey">(399529)</span></li>
<li>/branches/12/main/stasis.c <span style="color: grey">(399529)</span></li>
<li>/branches/12/main/stasis_config.c <span style="color: grey">(399529)</span></li>
<li>/branches/12/main/stasis_message_router.c <span style="color: grey">(399529)</span></li>
<li>/branches/12/main/taskprocessor.c <span style="color: grey">(399529)</span></li>
<li>/branches/12/res/res_pjsip/include/res_pjsip_private.h <span style="color: grey">(399529)</span></li>
</ul>
<p><a href="https://reviewboard.asterisk.org/r/2873/diff/" style="margin-left: 3em;">View Diff</a></p>
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