1 | #ifndef __XMLIO_LOGGER__ |
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2 | #define __XMLIO_LOGGER__ |
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3 | |
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4 | #include <csignal> |
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5 | |
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6 | #ifdef __GNUC__ |
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7 | #include <execinfo.h> |
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8 | #include <cxxabi.h> |
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9 | #endif // __GNUC__ |
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10 | |
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11 | using std::string; |
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12 | |
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13 | namespace XMLIOSERVER |
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14 | { |
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15 | class ILogger : public std::ostringstream |
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16 | { |
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17 | private : |
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18 | |
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19 | ILogger(void) |
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20 | { signal(SIGSEGV, SigHandler); } |
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21 | |
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22 | private : /* static */ |
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23 | |
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24 | static ILogger LOGGER; |
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25 | |
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26 | public : /* static */ |
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27 | |
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28 | static ILogger& GetLogger(void) { return (ILogger::LOGGER); } |
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29 | |
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30 | static void Flush(std::ostream& out = std::clog) |
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31 | { ILogger::GetLogger().flush(out); } |
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32 | |
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33 | static void ShowBTrace(std::ostream& out = std::clog) |
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34 | { |
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35 | #ifdef __GNUC__ |
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36 | int status = 0; |
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37 | string value; |
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38 | void *stack_addrs[20] = {NULL}; |
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39 | size_t stack_depth = backtrace(stack_addrs, 20); |
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40 | char **stack_strings = backtrace_symbols(stack_addrs, stack_depth); |
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41 | |
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42 | out << "Trace : " << std::endl; |
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43 | for (size_t i = 2, j = 0; i < stack_depth; i++) |
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44 | { |
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45 | value.assign(stack_strings[i]); |
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46 | size_t bpos = value.find ('('), epos = value.find ('+'); |
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47 | if ((bpos != string::npos) and (epos != string::npos)) |
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48 | { |
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49 | char* demangled_name = abi::__cxa_demangle(value.substr(bpos+1, epos-bpos-1).c_str(), 0, 0, &status); |
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50 | if (status == 0) out << " " << ++j << " -> " << (demangled_name) << std::endl; |
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51 | else out << " " << ++j << " -> " << value.substr(bpos+1, epos-bpos-1) << std::endl; |
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52 | free(demangled_name); |
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53 | } |
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54 | } |
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55 | |
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56 | free(stack_strings); |
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57 | #endif // __GNUC__ |
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58 | } |
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59 | |
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60 | static void SigHandler(int _sigValue) |
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61 | { |
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62 | std::cerr << "============= Erreur =============" << std::endl; |
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63 | std::cerr << "Signal " << _sigValue << " reçu !" << std::endl; |
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64 | ShowBTrace(std::cerr); |
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65 | std::cerr << "==================================" << std::endl; |
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66 | exit(EXIT_FAILURE); |
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67 | } |
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68 | |
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69 | public : |
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70 | |
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71 | void flush(std::ostream& out = std::clog) |
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72 | { out << str() << std::endl; str(""); } |
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73 | |
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74 | ~ILogger(void) { this->flush(); } |
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75 | |
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76 | }; // class ILogger |
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77 | |
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78 | // Initialisation de la classe de Logging |
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79 | ILogger ILogger::LOGGER; |
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80 | |
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81 | ///////////////////////////////////////////////////////////////////// |
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82 | unsigned int Indent = 0; |
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83 | const char* Increm = " "; |
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84 | |
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85 | std::ostream& NIndent(std::ostream& out) |
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86 | { |
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87 | static unsigned int LineNB = 1; |
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88 | out<< LineNB++ << ". "; |
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89 | for(unsigned int i = 0;i < Indent; i++) out << Increm; |
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90 | return(out); |
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91 | } |
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92 | |
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93 | std::ostream& IncIndent(std::ostream& out) |
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94 | { Indent++; return (NIndent(out)); } |
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95 | |
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96 | std::ostream& DecEndl (std::ostream& out) |
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97 | { Indent--; return (out); } |
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98 | ///////////////////////////////////////////////////////////////////// |
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99 | |
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100 | } // namespace XMLIOSERVER |
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101 | |
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102 | #define ERROR(MSG)\ |
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103 | (ILogger::GetLogger() << __FILE__ << ":" << __LINE__ << ": error : " << MSG << std::endl) |
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104 | #define WARNING(MSG)\ |
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105 | (ILogger::GetLogger() << __FILE__ << ":" << __LINE__ << ": warning : " << MSG << std::endl) |
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106 | #define INFO(MSG)\ |
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107 | (ILogger::GetLogger() << __FILE__ << ":" << __LINE__ << ": info : " << MSG << std::endl) |
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108 | // A compléter. |
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109 | |
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110 | #endif // __XMLIO_LOGGER__ |
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