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<div class="title">CAmWatchdog.cpp</div> </div>
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<a href="CAmWatchdog_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="CAmWatchdog_8h.html">CAmWatchdog.h</a>"</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <cassert></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <cstdlib></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <stdexcept></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "audiomanagerconfig.h"</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="CAmDltWrapper_8h.html">CAmDltWrapper.h</a>"</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <systemd/sd-daemon.h></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span>am</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> {</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classam_1_1CAmWatchdog.html#ad4de61bd5653451dda216ec94a60e57f"> 35</a></span> <a class="code" href="classam_1_1CAmWatchdog.html#ad4de61bd5653451dda216ec94a60e57f">CAmWatchdog::CAmWatchdog</a>(<a class="code" href="classam_1_1CAmSocketHandler.html">CAmSocketHandler</a>* <a class="code" href="classam_1_1CAmSocketHandler.html">CAmSocketHandler</a>) :</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  TimerCallback(this, &<a class="code" href="classam_1_1CAmWatchdog.html">CAmWatchdog</a>::timerCallback), <span class="comment">//</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  mpCAmSocketHandler(CAmSocketHandler), <span class="comment">//</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  mHandle(0) <span class="comment">//</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  assert(mpCAmSocketHandler);</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="comment">//first retrieve the timeout interval</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">int</span> watchdogTimeout = 0;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">char</span>* wusec=getenv(<span class="stringliteral">"WATCHDOG_USEC"</span>);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">if</span> (wusec)</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  watchdogTimeout=atoi(wusec);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">if</span> (watchdogTimeout > 0)</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  timespec timeout;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">//calculate the half cycle as the right interval to trigger the watchdog.</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  timeout.tv_sec = (watchdogTimeout / 2) / 1000000;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  timeout.tv_nsec = ((watchdogTimeout / 2) % 1000000) * 1000;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="namespaceam.html#a47d650dc91db97c1f9323b4ed5cf4fd6">logInfo</a>(<span class="stringliteral">"CAmWatchdog::CAmWatchdog setting watchdog timeout:"</span>, watchdogTimeout, <span class="stringliteral">"us. Notification set to:"</span>,</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  (<span class="keywordtype">int</span>)timeout.tv_sec, <span class="stringliteral">"sec and"</span>, (<span class="keywordtype">int</span>)timeout.tv_nsec, <span class="stringliteral">"ns"</span>);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">//add the timer here</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">if</span> (mpCAmSocketHandler-><a class="code" href="classam_1_1CAmSocketHandler.html#a74acb55776de9391f5b6ce6002c0e7b4">addTimer</a>(timeout, &<a class="code" href="classam_1_1CAmWatchdog.html#af60241c3ecfcf1f85ffcfb28cf026065">TimerCallback</a>, mHandle, NULL))</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="namespaceam.html#ab00ba22db19413e2040c2ab246f220c6">logError</a>(<span class="stringliteral">"CAmWatchdog::CAmWatchdog failed to add timer"</span>);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"CAmWatchdog::CAmWatchdog failed to add timer"</span>);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  {</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="namespaceam.html#a47d650dc91db97c1f9323b4ed5cf4fd6">logInfo</a>(<span class="stringliteral">"CAmWatchdog::CAmWatchdog watchdog timeout was "</span>, watchdogTimeout, <span class="stringliteral">" museconds, no watchdog active"</span>);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="classam_1_1CAmWatchdog.html#ac8adbc4a0dbf84f81eba5eb5e5fca33f"> 75</a></span> <a class="code" href="classam_1_1CAmWatchdog.html#ac8adbc4a0dbf84f81eba5eb5e5fca33f">CAmWatchdog::~CAmWatchdog</a>()</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">//remove the timer again.</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">if</span> (mHandle!=0)</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  mpCAmSocketHandler-><a class="code" href="classam_1_1CAmSocketHandler.html#a7627416d3b2fd93baa84599b52691bec">removeTimer</a>(mHandle);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classam_1_1CAmWatchdog.html#aeb749571a8c560fba178b04071cf5279"> 82</a></span> <span class="keywordtype">void</span> <a class="code" href="classam_1_1CAmWatchdog.html#aeb749571a8c560fba178b04071cf5279">CAmWatchdog::timerCallback</a>(<a class="code" href="namespaceam.html#a22a7b0b07f6cd371e638db2194762958">sh_timerHandle_t</a> handle, <span class="keywordtype">void</span>* userData)</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> {</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  (void) userData;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">int</span> error(sd_notify(0, <span class="stringliteral">"WATCHDOG=1"</span>));</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (error < 0)</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <a class="code" href="namespaceam.html#ab00ba22db19413e2040c2ab246f220c6">logError</a>(<span class="stringliteral">"CAmWatchdog::timerCallback could not reset watchdog, error "</span>, error);</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"CAmWatchdog::timerCallback could not reset watchdog"</span>);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  }</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  mpCAmSocketHandler-><a class="code" href="classam_1_1CAmSocketHandler.html#a34f5a3d01d54f25eae224d5ca84f5a2a">restartTimer</a>(handle);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="classam_1_1CAmWatchdog.html#a4379a7449325044199d4703a99039b9c"> 95</a></span> <span class="keywordtype">void</span> <a class="code" href="classam_1_1CAmWatchdog.html#a4379a7449325044199d4703a99039b9c">CAmWatchdog::startWatchdog</a>()</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">int</span> error(sd_notify(0, <span class="stringliteral">"READY=1"</span>));</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">if</span> (error < 0)</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  {</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="namespaceam.html#ab00ba22db19413e2040c2ab246f220c6">logError</a>(<span class="stringliteral">"CAmWatchdog::startWatchdog could not start watchdog, error "</span>, error);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"CAmWatchdog::startWatchdog could not start watchdog"</span>);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="namespaceam.html#a47d650dc91db97c1f9323b4ed5cf4fd6">logInfo</a>(<span class="stringliteral">"READY=1 was sent to systemd"</span>);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> }</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> }</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment">/* namespace am */</span></div>
<div class="ttc" id="namespaceam_html_a47d650dc91db97c1f9323b4ed5cf4fd6"><div class="ttname"><a href="namespaceam.html#a47d650dc91db97c1f9323b4ed5cf4fd6">am::logInfo</a></div><div class="ttdeci">void logInfo(T value, TArgs...args)</div><div class="ttdoc">logs given values with infolevel with the default context </div><div class="ttdef"><b>Definition:</b> <a href="CAmDltWrapper_8h_source.html#l00405">CAmDltWrapper.h:405</a></div></div>
<div class="ttc" id="classam_1_1CAmSocketHandler_html_a34f5a3d01d54f25eae224d5ca84f5a2a"><div class="ttname"><a href="classam_1_1CAmSocketHandler.html#a34f5a3d01d54f25eae224d5ca84f5a2a">am::CAmSocketHandler::restartTimer</a></div><div class="ttdeci">am_Error_e restartTimer(const sh_timerHandle_t handle)</div><div class="ttdoc">restarts a timer with the original value </div><div class="ttdef"><b>Definition:</b> <a href="CAmSocketHandler_8cpp_source.html#l00399">CAmSocketHandler.cpp:399</a></div></div>
<div class="ttc" id="classam_1_1CAmSocketHandler_html"><div class="ttname"><a href="classam_1_1CAmSocketHandler.html">am::CAmSocketHandler</a></div><div class="ttdoc">The am::CAmSocketHandler implements a mainloop for the AudioManager. </div><div class="ttdef"><b>Definition:</b> <a href="CAmSocketHandler_8h_source.html#l00094">CAmSocketHandler.h:94</a></div></div>
<div class="ttc" id="classam_1_1CAmWatchdog_html"><div class="ttname"><a href="classam_1_1CAmWatchdog.html">am::CAmWatchdog</a></div><div class="ttdoc">Implements the watchdog of the AudioManager with the help of systemd. </div><div class="ttdef"><b>Definition:</b> <a href="CAmWatchdog_8h_source.html#l00035">CAmWatchdog.h:35</a></div></div>
<div class="ttc" id="classam_1_1CAmSocketHandler_html_a74acb55776de9391f5b6ce6002c0e7b4"><div class="ttname"><a href="classam_1_1CAmSocketHandler.html#a74acb55776de9391f5b6ce6002c0e7b4">am::CAmSocketHandler::addTimer</a></div><div class="ttdeci">am_Error_e addTimer(const timespec timeouts, IAmShTimerCallBack *callback, sh_timerHandle_t &handle, void *userData)</div><div class="ttdoc">adds a timer to the list of timers. </div><div class="ttdef"><b>Definition:</b> <a href="CAmSocketHandler_8cpp_source.html#l00272">CAmSocketHandler.cpp:272</a></div></div>
<div class="ttc" id="CAmDltWrapper_8h_html"><div class="ttname"><a href="CAmDltWrapper_8h.html">CAmDltWrapper.h</a></div><div class="ttdoc">SPDX license identifier: MPL-2.0. </div></div>
<div class="ttc" id="CAmWatchdog_8h_html"><div class="ttname"><a href="CAmWatchdog_8h.html">CAmWatchdog.h</a></div><div class="ttdoc">SPDX license identifier: MPL-2.0. </div></div>
<div class="ttc" id="namespaceam_html_a22a7b0b07f6cd371e638db2194762958"><div class="ttname"><a href="namespaceam.html#a22a7b0b07f6cd371e638db2194762958">am::sh_timerHandle_t</a></div><div class="ttdeci">uint16_t sh_timerHandle_t</div><div class="ttdoc">this is a handle for a timer to be used with the SocketHandler </div><div class="ttdef"><b>Definition:</b> <a href="CAmSocketHandler_8h_source.html#l00036">CAmSocketHandler.h:36</a></div></div>
<div class="ttc" id="classam_1_1CAmSocketHandler_html_a7627416d3b2fd93baa84599b52691bec"><div class="ttname"><a href="classam_1_1CAmSocketHandler.html#a7627416d3b2fd93baa84599b52691bec">am::CAmSocketHandler::removeTimer</a></div><div class="ttdeci">am_Error_e removeTimer(const sh_timerHandle_t handle)</div><div class="ttdoc">removes a timer from the list of timers </div><div class="ttdef"><b>Definition:</b> <a href="CAmSocketHandler_8cpp_source.html#l00321">CAmSocketHandler.cpp:321</a></div></div>
<div class="ttc" id="classam_1_1CAmWatchdog_html_ac8adbc4a0dbf84f81eba5eb5e5fca33f"><div class="ttname"><a href="classam_1_1CAmWatchdog.html#ac8adbc4a0dbf84f81eba5eb5e5fca33f">am::CAmWatchdog::~CAmWatchdog</a></div><div class="ttdeci">virtual ~CAmWatchdog()</div><div class="ttdef"><b>Definition:</b> <a href="CAmWatchdog_8cpp_source.html#l00075">CAmWatchdog.cpp:75</a></div></div>
<div class="ttc" id="classam_1_1CAmWatchdog_html_ad4de61bd5653451dda216ec94a60e57f"><div class="ttname"><a href="classam_1_1CAmWatchdog.html#ad4de61bd5653451dda216ec94a60e57f">am::CAmWatchdog::CAmWatchdog</a></div><div class="ttdeci">CAmWatchdog(CAmSocketHandler *CAmSocketHandler)</div><div class="ttdef"><b>Definition:</b> <a href="CAmWatchdog_8cpp_source.html#l00035">CAmWatchdog.cpp:35</a></div></div>
<div class="ttc" id="classam_1_1CAmWatchdog_html_a4379a7449325044199d4703a99039b9c"><div class="ttname"><a href="classam_1_1CAmWatchdog.html#a4379a7449325044199d4703a99039b9c">am::CAmWatchdog::startWatchdog</a></div><div class="ttdeci">void startWatchdog()</div><div class="ttdoc">starts the watchdog by sending ready to systemD </div><div class="ttdef"><b>Definition:</b> <a href="CAmWatchdog_8cpp_source.html#l00095">CAmWatchdog.cpp:95</a></div></div>
<div class="ttc" id="namespaceam_html_ab00ba22db19413e2040c2ab246f220c6"><div class="ttname"><a href="namespaceam.html#ab00ba22db19413e2040c2ab246f220c6">am::logError</a></div><div class="ttdeci">void logError(T value, TArgs...args)</div><div class="ttdoc">logs given values with errorlevel with the default context </div><div class="ttdef"><b>Definition:</b> <a href="CAmDltWrapper_8h_source.html#l00416">CAmDltWrapper.h:416</a></div></div>
<div class="ttc" id="classam_1_1CAmWatchdog_html_af60241c3ecfcf1f85ffcfb28cf026065"><div class="ttname"><a href="classam_1_1CAmWatchdog.html#af60241c3ecfcf1f85ffcfb28cf026065">am::CAmWatchdog::TimerCallback</a></div><div class="ttdeci">TAmShTimerCallBack< CAmWatchdog > TimerCallback</div><div class="ttdef"><b>Definition:</b> <a href="CAmWatchdog_8h_source.html#l00042">CAmWatchdog.h:42</a></div></div>
<div class="ttc" id="classam_1_1CAmWatchdog_html_aeb749571a8c560fba178b04071cf5279"><div class="ttname"><a href="classam_1_1CAmWatchdog.html#aeb749571a8c560fba178b04071cf5279">am::CAmWatchdog::timerCallback</a></div><div class="ttdeci">void timerCallback(sh_timerHandle_t handle, void *userData)</div><div class="ttdoc">the watchdog timer callback </div><div class="ttdef"><b>Definition:</b> <a href="CAmWatchdog_8cpp_source.html#l00082">CAmWatchdog.cpp:82</a></div></div>
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