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- <a href="log_8hpp.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="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#ifndef log_hpp</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#define log_hpp</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <iostream></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <fstream></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <cstring></span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <map></span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span><a class="code" href="namespacefv_1_1util.html">fv::util</a>{</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">enum</span> LogPriority {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  kLogEmergency = 7, <span class="comment">// system is unusable</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  kLogAlert = 6, <span class="comment">// action must be taken immediately</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  kLogCritical = 5, <span class="comment">// critical conditions</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  kLogError = 4, <span class="comment">// error conditions</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  kLogWarning = 3, <span class="comment">// warning conditions</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  kLogNotice = 2, <span class="comment">// normal, but significant, condition</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  kLogInfo = 1, <span class="comment">// informational message</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  kLogDebug = 0 <span class="comment">// debug-level message</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> };</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> <span class="preprocessor">#define CRITICAL(x,y) std::clog << fv::util::LogPriority::kLogCritical << __FILE__ << "@L" << __LINE__ << " :: " << x << std::flush; std::cout << "Errors encountered! See log file for details."<<std::endl;exit(y)</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#define ERROR(x) std::clog << fv::util::LogPriority::kLogError << __FILE__ << "@L" << __LINE__ << " :: " << x << std::flush</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#define WARNING(x) std::clog << fv::util::LogPriority::kLogWarning << x << std::flush</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#define INFO(x) std::clog << fv::util::LogPriority::kLogInfo << x << std::flush</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#define DEBUG(x) std::clog << fv::util::LogPriority::kLogDebug << __FILE__ << "@L" << __LINE__ << " :: " << x << std::flush</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> std::ostream& operator<< (std::ostream& os, <span class="keyword">const</span> LogPriority& log_priority);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classfv_1_1util_1_1Log.html"> 64</a></span> <span class="keyword">class </span><a class="code" href="classfv_1_1util_1_1Log.html">Log</a> : <span class="keyword">public</span> std::basic_streambuf<char, std::char_traits<char> > {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  std::string buffer_;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  std::ofstream logfile;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  LogPriority priority_curr;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  LogPriority priority_set;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">inline</span> <span class="keyword">static</span> <a class="code" href="classfv_1_1util_1_1Log.html">Log</a>* singleton = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">const</span> std::map<LogPriority,std::string> name_map = {{kLogEmergency, <span class="stringliteral">"EMERGENCY"</span>},</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  {kLogAlert, <span class="stringliteral">"ALERT"</span>},</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  {kLogCritical, <span class="stringliteral">"CRITICAL"</span>},</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  {kLogError, <span class="stringliteral">"ERROR"</span>},</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  {kLogWarning, <span class="stringliteral">"WARNING"</span>},</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  {kLogNotice, <span class="stringliteral">"NOTICE"</span>},</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {kLogInfo, <span class="stringliteral">"INFO"</span>},</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  {kLogDebug, <span class="stringliteral">"DEBUG"</span>}};</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="log_8hpp.html#ae6c229c0c5644bff37cf4cfd01e1e107"> 80</a></span>  <span class="keyword">friend</span> std::ostream& <a class="code" href="classfv_1_1util_1_1Log.html#a0424ebdae6a085efdf86eef68d4290bb">operator<< </a>(std::ostream& os, <span class="keyword">const</span> LogPriority& log_priority){</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">static_cast<</span><a class="code" href="classfv_1_1util_1_1Log.html">Log</a> *<span class="keyword">></span>(os.rdbuf())->priority_curr = log_priority;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">return</span> os;</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> <span class="keyword">protected</span>:</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">int</span> sync(){</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (buffer_.length()) {</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (priority_curr >= priority_set){</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  logfile << name_map.at(priority_curr) << <span class="stringliteral">": "</span> << buffer_ << std::endl << std::flush;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  buffer_.erase();</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">/* priority_curr = kLogDebug; // default to debug for each message */</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">int</span> overflow(<span class="keywordtype">int</span> c){</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">if</span> (c != EOF) {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  buffer_ += <span class="keyword">static_cast<</span><span class="keywordtype">char</span><span class="keyword">></span>(c);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  sync();</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> c;</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> <span class="keyword">public</span>:</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">explicit</span> <a class="code" href="classfv_1_1util_1_1Log.html">Log</a>(std::string filename, LogPriority priority)</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  :logfile(filename, std::ofstream::out){</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  priority_set = priority;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  priority_curr = kLogDebug;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">static</span> <a class="code" href="classfv_1_1util_1_1Log.html">Log</a>& init_logger(std::string filename, LogPriority priority){</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (singleton == <span class="keyword">nullptr</span>){</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  singleton = <span class="keyword">new</span> <a class="code" href="classfv_1_1util_1_1Log.html">Log</a>(filename, priority);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  std::cout << <span class="stringliteral">"Writing log data to "</span> << filename << std::endl;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  std::clog.rdbuf(singleton);</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> *singleton;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> };</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> }</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="preprocessor">#endif // log_hpp</span></div><div class="ttc" id="namespacefv_1_1util_html"><div class="ttname"><a href="namespacefv_1_1util.html">fv::util</a></div><div class="ttdef"><b>Definition:</b> argparse.hpp:39</div></div>
- <div class="ttc" id="classfv_1_1util_1_1Log_html_a0424ebdae6a085efdf86eef68d4290bb"><div class="ttname"><a href="classfv_1_1util_1_1Log.html#a0424ebdae6a085efdf86eef68d4290bb">fv::util::Log::operator<<</a></div><div class="ttdeci">friend std::ostream & operator<<(std::ostream &os, const LogPriority &log_priority)</div><div class="ttdoc">/see http://stackoverflow.com/questions/2638654/redirect-c-stdclog-to-syslog-on-unix ...</div><div class="ttdef"><b>Definition:</b> log.hpp:80</div></div>
- <div class="ttc" id="classfv_1_1util_1_1Log_html"><div class="ttname"><a href="classfv_1_1util_1_1Log.html">fv::util::Log</a></div><div class="ttdef"><b>Definition:</b> log.hpp:64</div></div>
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