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List:       asterisk-dev
Subject:    Re: [asterisk-dev] [Code Review] 4443: dial api: add self destruction option
From:       "Scott Griepentrog" <reviewboard () asterisk ! org>
Date:       2015-02-26 18:53:15
Message-ID: 20150226185315.3579.44793 () sonic ! digium ! api
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This is an automatically generated e-mail. To reply, visit:
https://reviewboard.asterisk.org/r/4443/
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(Updated Feb. 26, 2015, 12:53 p.m.)


Status
------

This change has been marked as submitted.


Review request for Asterisk Developers.


Changes
-------

Committed in revision 432385


Repository: Asterisk


Description
-------

This adds a self-destruction ability to the dial api.  The usefulness of this is \
mostly when using async mode to spawn a separate thread to handle the new call, while \
the calling thread is allowed to go on about other business.  The alternative of this \
option is that the calling thread must either hang around for the duration or spawn \
it's own thread in order to create and then later destroy the dial structure after \
the call completes.

Example (minus error checking):

struct ast_dial *dial = ast_dial_create();

ast_dial_append(dial, "PJSIP", "200", NULL);

ast_dial_option_global_enable(dial, AST_DIAL_OPTION_ANSWER_EXEC, "Echo");
ast_dial_option_global_enable(dial, AST_DIAL_OPTION_SELF_DESTROY, NULL);

ast_dial_run(dial, NULL, 1);

The dial_run call returns almost immediately after spawning a new thread to complete \
and monitor the dial.  If the call is answered, it is put into echo.  When completed, \
ast_dial_destroy() will be called on the dial structure.

Note that any allocations made to pass values to ast_dial_set_user_data() or other \
dial options will need to be free'd in a state callback function on any of \
AST_DIAL_RESULT_UNASWERED, AST_DIAL_RESULT_ANSWERED, AST_DIAL_RESULT_HANGUP, or \
AST_DIAL_RESULT_TIMEOUT.


Diffs
-----

  /branches/13/main/dial.c 432173 
  /branches/13/include/asterisk/dial.h 432173 

Diff: https://reviewboard.asterisk.org/r/4443/diff/


Testing
-------

Correct operation confirmed with a temporary test function running under valgrind to \
insure there are no invalid references or leaks.


Thanks,

Scott Griepentrog


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      This is an automatically generated e-mail. To reply, visit:
      <a href="https://reviewboard.asterisk.org/r/4443/">https://reviewboard.asterisk.org/r/4443/</a>
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<div>Review request for Asterisk Developers.</div>
<div>By Scott Griepentrog.</div>


<p style="color: grey;"><i>Updated Feb. 26, 2015, 12:53 p.m.</i></p>



<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Changes</h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: \
1px solid #b8b5a0">  <tr>
  <td>
   <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;">Committed in revision 432385</pre>  </td>
 </tr>
</table>







<div style="margin-top: 1.5em;">
 <b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
</div>


<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
 <table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" \
style="border: 1px solid #b8b5a0">  <tr>
  <td>
   <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 adds a self-destruction ability to the dial api.  The usefulness of \
this is mostly when using async mode to spawn a separate thread to handle the new \
call, while the calling thread is allowed to go on about other business.  The \
alternative of this option is that the calling thread must either hang around for the \
duration or spawn it&#39;s own thread in order to create and then later destroy the \
dial structure after the call completes.

Example (minus error checking):

struct ast_dial *dial = ast_dial_create();

ast_dial_append(dial, &quot;PJSIP&quot;, &quot;200&quot;, NULL);

ast_dial_option_global_enable(dial, AST_DIAL_OPTION_ANSWER_EXEC, &quot;Echo&quot;);
ast_dial_option_global_enable(dial, AST_DIAL_OPTION_SELF_DESTROY, NULL);

ast_dial_run(dial, NULL, 1);

The dial_run call returns almost immediately after spawning a new thread to complete \
and monitor the dial.  If the call is answered, it is put into echo.  When completed, \
ast_dial_destroy() will be called on the dial structure.

Note that any allocations made to pass values to ast_dial_set_user_data() or other \
dial options will need to be free&#39;d in a state callback function on any of \
AST_DIAL_RESULT_UNASWERED, AST_DIAL_RESULT_ANSWERED, AST_DIAL_RESULT_HANGUP, or \
AST_DIAL_RESULT_TIMEOUT. </pre>
  </td>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: \
1px solid #b8b5a0">  <tr>
  <td>
   <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;">Correct operation confirmed with a temporary test function running under \
valgrind to insure there are no invalid references or leaks. </pre>
  </td>
 </tr>
</table>


<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">

 <li>/branches/13/main/dial.c <span style="color: grey">(432173)</span></li>

 <li>/branches/13/include/asterisk/dial.h <span style="color: \
grey">(432173)</span></li>

</ul>

<p><a href="https://reviewboard.asterisk.org/r/4443/diff/" style="margin-left: \
3em;">View Diff</a></p>







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