<p>Hi all,</p>
<p>Here is a prototype of Keepalive module I discussed on the mailing-list.<br>
It can work standalone:</p>
<ul>
<li>destinations are set statically as module parameters</li>
<li><em>is_alive()</em> function allows to check destination state</li>
</ul>
<p>It can also be used alongside with drouting module (currently only with sort_order 0)</p>
<ul>
<li>all destinations defined in drouting module are automatically monitored when drouting <em>enable_keepalive</em> option is set to 1</li>
<li>unavailable destinations are ignored when calling do_routing() function</li>
</ul>
<p>All comments are welcome</p>
<p>Thanks,<br>
Guillaume</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/kamailio/kamailio/pull/1045'>https://github.com/kamailio/kamailio/pull/1045</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>keepalive: module skeleton</li>
  <li>keepalive: modularization, allow to specify more than one destination</li>
  <li>keepalive: event routes</li>
  <li>keepalive: module modularization</li>
  <li>keepalive: adapt to trunk/5.0 branch</li>
  <li>keepalive: attached informations related to destinations</li>
  <li>keepalive: basic rpc interface</li>
  <li>keepalive: remove ka_destination_list from api (not exported)</li>
  <li>drouting: register destinations in keepalive module</li>
  <li>keepalive: triggers events routes on state change only</li>
  <li>drouting: refactoring</li>
  <li>keepalive: support callback function on destination registration</li>
  <li>drouting: register destination with callback</li>
  <li>drouting: on do_routing() function, discard unavailable destinations</li>
  <li>keepalive: checking uri format when adding destination</li>
  <li>keepalive: *ping_interval* parameter to setup delay between destinations keepalives (default 30secs)</li>
  <li>keepalive: ping considered successful if received 2XX response</li>
  <li>keepalive: added is_alive(dest) function to check monitored destination status</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-0">src/modules/drouting/dr_load.c</a>
    (3)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-1">src/modules/drouting/drouting.c</a>
    (58)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-2">src/modules/drouting/prefix_tree.h</a>
    (4)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-3">src/modules/drouting/routing.c</a>
    (2)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-4">src/modules/keepalive/Makefile</a>
    (18)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-5">src/modules/keepalive/api.h</a>
    (74)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-6">src/modules/keepalive/keepalive.h</a>
    (86)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-7">src/modules/keepalive/keepalive_api.c</a>
    (138)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-8">src/modules/keepalive/keepalive_core.c</a>
    (203)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-9">src/modules/keepalive/keepalive_mod.c</a>
    (193)
  </li>
  <li>
    <strong>A</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1045/files#diff-10">src/modules/keepalive/keepalive_rpc.c</a>
    (101)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/kamailio/kamailio/pull/1045.patch'>https://github.com/kamailio/kamailio/pull/1045.patch</a></li>
  <li><a href='https://github.com/kamailio/kamailio/pull/1045.diff'>https://github.com/kamailio/kamailio/pull/1045.diff</a></li>
</ul>

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