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When systemd is configured via the unit file to use a watchdog and watchdog support is activated in the audiomanager, the audiomanager will reset the watchdog via the mainloop in the given interval to prevent systemd from restarting the audiomanager.<br/> +If the audiomanager is stuck for whatever reason, systemd will not get this update and restart the audiomanager.</p> +<h1><a class="anchor" id="configwatch"></a> +Watchdog configuration</h1> +<p>By default, the watchdog is enabled in the audiomanager, you can disable the watchdog functionality by setting the cmake build option "WITH_SYSTEMD_WATCHDOG" to OFF, either by modifying the cmake cache with ccache or by passing -DWITH_SYSTEMD_WATCHDOG=OFF to cmake.<br/> +The interval for checking the watchdog can be set in the unitfile of systemd by setting "WatchdogSec". The other settings need to be done as well: </p> +<div class="fragment"><div class="line">Restart=always</div> +<div class="line">WatchdogSec=2</div> +<div class="line">NotifyAccess=<a class="code" href="main_8cpp.html#af9f20e08914b990ce83431d5dc6df07b">main</a></div> +</div><!-- fragment --><p> The intervall for pinging systemd is set to the half of "WatchdogSec".</p> +<h1><a class="anchor" id="winteg"></a> +Integration with systemd</h1> +<p>The audiomanager will use the library proviced by "libsystemd-daemon" if it is available on the system. If this library is not available, the files sd-daemon.c and sd-daemon.h that are provided with the audiomanager and released under MIT licence by Lennard Poettering will be used to connect to systemd.</p> +<p>more information can be found here: <a class="el" href="classam_1_1CAmWatchdog.html" title="Implements the watchdog of the AudioManager with the help of systemd. ">am::CAmWatchdog</a> and sd-daemon.h . </p> +</div></div><!-- contents --> +</div><!-- doc-content --> +<!-- start footer part --> +<div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> + <ul> + <li class="footer">Generated on Fri Sep 30 2016 14:27:22 for AudioManager by + <a href="http://www.doxygen.org/index.html"> + <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 </li> + </ul> +</div> +</body> +</html> |