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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3025/">https://reviewboard.asterisk.org/r/3025/</a>
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<p style="margin-top: 0;">On November 21st, 2013, 6:04 p.m. CST, <b>Mark Michelson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3025/diff/1/?file=48549#file48549line142" style="color: black; font-weight: bold; text-decoration: underline;">branches/12/res/res_stasis_device_state.c</a>
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(Diff revision 1)
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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">RAII_VAR</span><span class="p">(</span><span class="k">struct</span> <span class="n">device_state_subscription</span> <span class="o">*</span><span class="p">,</span> <span class="n">sub</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">device_state_subscription_create</span><span class="p">(</span><span class="n">app</span><span class="p">,</span> <span class="n">name</span><span class="p">),</span> <span class="n">ao2_cleanup</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="k">if</span> <span class="p">(</span><span class="o">!</span><span class="n">sub</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="k">return</span> <span class="nb">NULL</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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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="k">return</span> <span class="n">ao2_find</span><span class="p">(</span><span class="n">device_state_subscriptions</span><span class="p">,</span> <span class="n">sub</span><span class="p">,</span> <span class="n">OBJ_SEARCH_OBJECT</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;">Instead of constructing a device_state_subscription and searching by OBJ_SEARCH_OBJECT, just use the name that was passed in and search by OBJ_SEARCH_KEY. That way, you save the overhead of the creation and destruction of an ao2_object whenever this function is called.</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 need to search by the app name and device name in order to find the device subscribed to and OBJ_SEARCH_KEY only allows me to search using a single string field, so I create the object and search on that instead.</pre>
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<p style="margin-top: 0;">On November 21st, 2013, 6:04 p.m. CST, <b>Mark Michelson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3025/diff/1/?file=48549#file48549line329" style="color: black; font-weight: bold; text-decoration: underline;">branches/12/res/res_stasis_device_state.c</a>
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(Diff revision 1)
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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">RAII_VAR</span><span class="p">(</span><span class="k">struct</span> <span class="n">device_state_subscription</span> <span class="o">*</span><span class="p">,</span> <span class="n">sub</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">find_device_state_subscription</span><span class="p">(</span><span class="n">app</span><span class="p">,</span> <span class="n">name</span><span class="p">),</span> <span class="n">ao2_cleanup</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="n">remove_device_state_subscription</span><span class="p">(</span><span class="n">sub</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 could save some cycles here by just calling
ao2_find(device_state_subscriptions, name, OBJ_SEARCH_KEY | OBJ_UNLINK | OBJ_NODATA);</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;">Similar to above. The data stored in device_state_subscriptions is essentially keyed off of two values instead of one: app_name and device_name. This is done because the list could contain subscriptions with multiple app and device names. So searches/finds have to be able to pass in both "keys" if you will. It first tries to match on the device name and if found then it tries to match on the app_name. If both match the search returns the located subscription for that app and device.</pre>
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<p>- Kevin</p>
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<p>On November 21st, 2013, 1:12 p.m. CST, Kevin Harwell wrote:</p>
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<div>Review request for Asterisk Developers, David Lee and Matt Jordan.</div>
<div>By Kevin Harwell.</div>
<p style="color: grey;"><i>Updated Nov. 21, 2013, 1:12 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-22838">ASTERISK-22838</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;">Created a data model and implemented functionality for an ARI device state resource. The following operations have been added that allow a user to manipulate an ARI controlled device:
PUT /device-states/{deviceName}&{deviceState} - Create/Change the state of an ARI controlled device
GET /device-states/{deviceName} - Retrieve the current state of a device
DELETE /device-states/{deviceName} - Destroy a device-state controlled by ARI
The ARI controlled device must begin with 'Stasis:'. An example controlled device name would be Stasis:Example.
A 'DeviceStateChanged' event has also been added so that an application can subscribe and receive device change events. Any device state, ARI controlled or not, can be subscribed to.
While adding the event, the underlying subscription control mechanism was refactored so that all current and future resource subscriptions would be the same. Each event resource must now register itself in order to be able to properly handle [un]subscribes.</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;">Some basic testing done using the swagger framework and a websocket connection. Testing adding, changing, and removing device state with regards to an ARI controlled device were successful. Also tested [un]subscribing to the events from device with success. Planning on writing some testsuite test cases as well.</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/rest-api/resources.json <span style="color: grey">(402955)</span></li>
<li>branches/12/rest-api/api-docs/events.json <span style="color: grey">(402955)</span></li>
<li>branches/12/rest-api/api-docs/deviceStates.json <span style="color: grey">(PRE-CREATION)</span></li>
<li>branches/12/rest-api/api-docs/applications.json <span style="color: grey">(402955)</span></li>
<li>branches/12/res/stasis/app.c <span style="color: grey">(402955)</span></li>
<li>branches/12/res/res_stasis_device_state.exports.in <span style="color: grey">(PRE-CREATION)</span></li>
<li>branches/12/res/res_stasis_device_state.c <span style="color: grey">(PRE-CREATION)</span></li>
<li>branches/12/res/res_stasis.c <span style="color: grey">(402955)</span></li>
<li>branches/12/res/res_ari_deviceStates.c <span style="color: grey">(PRE-CREATION)</span></li>
<li>branches/12/res/ari/resource_deviceStates.c <span style="color: grey">(PRE-CREATION)</span></li>
<li>branches/12/res/ari/resource_deviceStates.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>branches/12/res/ari/resource_applications.h <span style="color: grey">(402955)</span></li>
<li>branches/12/res/ari/ari_model_validators.c <span style="color: grey">(402955)</span></li>
<li>branches/12/res/ari/ari_model_validators.h <span style="color: grey">(402955)</span></li>
<li>branches/12/res/ari.make <span style="color: grey">(402955)</span></li>
<li>branches/12/main/devicestate.c <span style="color: grey">(402955)</span></li>
<li>branches/12/include/asterisk/stasis_app_device_state.h <span style="color: grey">(PRE-CREATION)</span></li>
<li>branches/12/include/asterisk/stasis_app.h <span style="color: grey">(402955)</span></li>
<li>branches/12/include/asterisk/devicestate.h <span style="color: grey">(402955)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3025/diff/" style="margin-left: 3em;">View Diff</a></p>
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