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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1776/">https://reviewboard.asterisk.org/r/1776/</a>
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<p style="margin-top: 0;">On March 8th, 2012, 11:54 a.m., <b>Terry Wilson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1776/diff/5/?file=25907#file25907line178" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/apps/app_stack.c</a>
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(Diff revision 5)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">ASTERISK_FILE_VERSION(__FILE__, "$Revision$")</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> <para>Read the calling context, extension, priority, or label, by going up</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> <replaceable>n</replaceable> frames in the Gosub stack. If</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> <replaceable>suppress</replaceable> is true, then if the number of available stack</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> frames is exceeded, then no error message will be printed.</para></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;">Document the options passable to 'which'.</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 style="margin-top: 0;">On March 8th, 2012, 11:54 a.m., <b>Terry Wilson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1776/diff/5/?file=25907#file25907line621" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/apps/app_stack.c</a>
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(Diff revision 5)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int stackpeek_read(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **str, ssize_t len)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">stack_store</span> <span class="o">=</span> <span class="n">ast_channel_datastore_find</span><span class="p">(</span><span class="n">chan</span><span class="p">,</span> <span class="o">&</span><span class="n">stack_info</span><span class="p">,</span> <span class="nb">NULL</span><span class="p">);</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;">ast_channel_datastore_find() requires channel locking.</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. I've also changed all the other places in app_stack which previously used the same code without locking.</pre>
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<p style="margin-top: 0;">On March 8th, 2012, 11:54 a.m., <b>Terry Wilson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1776/diff/5/?file=25907#file25907line646" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/apps/app_stack.c</a>
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(Diff revision 5)
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<td colspan="2"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int stackpeek_read(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **str, ssize_t len)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">while</span> <span class="p">(</span><span class="n">args</span><span class="p">.</span><span class="n">which</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="sc">' '</span><span class="p">)</span> <span class="p">{</span> <span class="n">args</span><span class="p">.</span><span class="n">which</span><span class="o">++</span><span class="p">;</span> <span class="p">}</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;">coding guidelines (as much as I personally like one-line while statements, they are verboten). Also, I think args.which = ast_skip_blanks(args.which) would be better anyway.</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;">Changed.</pre>
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<p style="margin-top: 0;">On March 8th, 2012, 11:54 a.m., <b>Terry Wilson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1776/diff/5/?file=25909#file25909line4608" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/res/ael/pval.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">int ast_compile_ael2(struct ast_context **local_contexts, struct ast_hashtab *local_table, struct pval *root)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="cm">/* Create default "h" bubble context */</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">if</span> <span class="p">(</span><span class="n">ast_custom_function_find</span><span class="p">(</span><span class="s">"DIALPLAN_EXISTS"</span><span class="p">)</span> <span class="o">&&</span> <span class="n">ast_custom_function_find</span><span class="p">(</span><span class="s">"STACK_PEEK"</span><span class="p">))</span> <span class="p">{</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;">I don't like anything about this block. I don't like creating magic contexts/extensions in the first place, and I really don't like including them in every single (ael) context. This very well could be related to my hatred of AEL in general, though, so I am going to have defer reviewing this part of the code to someone who is more familiar with AEL.</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 can possibly verify that the context doesn't already exist within AEL and create a random suffix if need be.
In terms of including them in every context, I've designed the code so that it should not matter if it is (making it the last include; verifying that we're within a Gosub stack at call; making the first priority a Goto to a much higher priority, so partial logic isn't appended onto other h extensions.). Additionally, I don't know of a good way of verifying whether a context is generated from the AEL-macro code or not. There's nothing in the name, and at this stage, there aren't even extensions in the contexts -- they're waiting for an additional compile step of generating priorities and instantiating.</pre>
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<p style="margin-top: 0;">On March 8th, 2012, 11:54 a.m., <b>Terry Wilson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1776/diff/5/?file=25909#file25909line4650" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/res/ael/pval.c</a>
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">int ast_compile_ael2(struct ast_context **local_contexts, struct ast_hashtab *local_table, struct pval *root)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">strcmp</span><span class="p">(</span><span class="n">ast_get_context_name</span><span class="p">(</span><span class="n">context</span><span class="p">),</span> <span class="n">h_context</span><span class="p">))</span> <span class="p">{</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;">You have ast_get_context_name possibly returning NULL and then passing that to strcmp without checking for NULL.</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;">It can only return NULL if the context itself is NULL, and that condition is excluded by the enclosing for loop.</pre>
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<p>- Tilghman</p>
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<p>On March 8th, 2012, 1:39 a.m., Tilghman Lesher wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Tilghman Lesher.</div>
<p style="color: grey;"><i>Updated March 8, 2012, 1:39 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;">The issue in question wants variables similar to how Macro worked, which presented variables in the dialplan to denote the calling context, extension, and priority. This might be similarly set by AEL, except that AEL doesn't have the information to pass at the right time. It has the information before the call to Gosub is made, but it needs to be passed into the Gosub, so it can be saved on the stack (and thus correctly disappear, restoring previous values, when Return is executed. Thus, STACK_PEEK was born, with the intention of being able to mimic features in 1.4's AEL that are not present anymore.
Whether this goes into a version of Asterisk earlier than 11 is a case for the bug reporter to make.</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;">Added test cases to test_gosub, in the process discovering another bug that has since been fixed. Works as designed.</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/ASTERISK-19336">ASTERISK-19336</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/apps/app_stack.c <span style="color: grey">(358080)</span></li>
<li>/trunk/funcs/func_dialplan.c <span style="color: grey">(358080)</span></li>
<li>/trunk/res/ael/pval.c <span style="color: grey">(358080)</span></li>
<li>/trunk/tests/test_gosub.c <span style="color: grey">(358080)</span></li>
<li>/trunk/utils/ael_main.c <span style="color: grey">(358080)</span></li>
<li>/trunk/utils/conf2ael.c <span style="color: grey">(358080)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1776/diff/" style="margin-left: 3em;">View Diff</a></p>
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