1 | /**
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2 | * @file logger.cpp
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3 | * @author myusgun@gmail.com
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4 | * @brief logger
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5 | */
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6 | #include "cf/logger.h"
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7 | #include "cf/codec.h"
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8 | #include "cf/file.h"
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9 | #include "cf/task.h"
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10 | #include "cf/util.h"
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11 |
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12 | #ifdef _ON_WINDOWS
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13 | # include <direct.h>
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14 | #else
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15 | # include <sys/stat.h>
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16 | # include <sys/types.h>
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17 | #endif
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18 |
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19 | #include <errno.h>
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20 | #include <string.h>
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21 |
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22 | #define LOG_SUFFIX ".log"
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23 | #define DATE_NUM(_d) ((_d.mYear * 10000) + (_d.mMonth * 100) + (_d.mDay))
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24 |
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25 | /*--------------------------------------------------------------*/
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26 |
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27 | static std::string getFullPath(const std::string & path,
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28 | const std::string & prefix,
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29 | const cf::int32_t option)
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30 | throw (cf::exception)
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31 | {
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32 | try
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33 | {
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34 | std::string filepath = path + cf::file::getDelimiter() + prefix;
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35 |
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36 | /* OPTINAL : append date if daily-rotated */
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37 | if (option & cf::logger::DAILY)
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38 | {
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39 | cf::util::datetime dt = cf::util::getInstance()->getDateTime();
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40 |
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41 | cf::char_t buf[16] = {0x00,};
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42 | snprintf(buf, sizeof(buf) - 1,
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43 | ".%04d%02d%02d",
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44 | dt.mYear,
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45 | dt.mMonth,
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46 | dt.mDay);
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47 |
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48 | filepath += buf;
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49 | }
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50 |
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51 | if (option & cf::logger::PID)
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52 | filepath += STR("." << cf::task::process::id());
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53 |
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54 | /* FORCED : append file-extension */
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55 | filepath += LOG_SUFFIX;
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56 |
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57 | return filepath;
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58 | }
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59 | catch (cf::exception &e)
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60 | {
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61 | FORWARD_EXCEPTION(e);
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62 | }
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63 | }
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64 |
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65 | /*--------------------------------------------------------------*/
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66 |
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67 | cf::logger::logger()
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68 | throw (cf::exception)
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69 | {
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70 | /* none : level 0 */
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71 | cf::logger::LOG_CTX ctx;
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72 |
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73 | ctx.mOption = 0;
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74 | memset(&ctx.mOptionParam, 0x00, sizeof(ctx.mOptionParam));
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75 | ctx.mFP = NULL;
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76 |
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77 | mLogPool.push_back(ctx);
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78 | }
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79 |
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80 | cf::logger::~logger()
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81 | {
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82 | /* close fp / release-vector-item */
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83 | std::vector<FILE *> fpPool;
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84 | std::vector<FILE *>::iterator fpIter;
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85 | std::vector<cf::logger::LOG_CTX>::iterator ctxIter;
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86 |
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87 | for (ctxIter = mLogPool.begin() ; ctxIter != mLogPool.end() ; ctxIter++)
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88 | {
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89 | cf::bool_t found = false;
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90 | for (fpIter = fpPool.begin() ; fpIter != fpPool.end() ; fpIter++)
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91 | {
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92 | if (ctxIter->mFP == (*fpIter))
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93 | {
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94 | found = true;
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95 | break;
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96 | }
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97 | }
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98 |
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99 | if (!found)
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100 | fpPool.push_back(ctxIter->mFP);
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101 | }
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102 |
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103 | for (fpIter = fpPool.begin() ; fpIter != fpPool.end() ; fpIter++)
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104 | {
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105 | if (*fpIter)
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106 | fclose(*fpIter);
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107 | }
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108 | }
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109 |
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110 | cf::logger * cf::logger::getInstance()
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111 | {
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112 | static logger instance;
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113 |
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114 | return &instance;
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115 | }
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116 |
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117 | cf::void_t cf::logger::rotateByDate(const cf::int32_t level,
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118 | const cf::util::datetime & dt)
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119 | throw (cf::exception)
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120 | {
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121 | try
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122 | {
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123 | /* check datetime */
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124 | cf::int32_t current = DATE_NUM(dt);
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125 |
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126 | if (mLogPool[level].mOptionParam.mCurrentDateTime == current)
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127 | return;
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128 |
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129 | open(level);
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130 |
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131 | /* replace datetime */
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132 | std::vector<cf::logger::LOG_CTX>::iterator iter;
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133 | for (iter = mLogPool.begin() ; iter != mLogPool.end() ; iter++)
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134 | {
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135 | if (iter->mFullPath == mLogPool[level].mFullPath)
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136 | iter->mOptionParam.mCurrentDateTime = current;
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137 | }
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138 | }
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139 | catch (cf::exception &e)
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140 | {
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141 | FORWARD_EXCEPTION(e);
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142 | }
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143 | }
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144 |
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145 | cf::void_t cf::logger::rotateBySize(const cf::int32_t level)
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146 | throw (cf::exception)
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147 | {
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148 | try
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149 | {
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150 | /* check size */
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151 | cf::file logFile(mLogPool[level].mFullPath.c_str());
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152 | if (logFile.size() < mLogPool[level].mOptionParam.mMaxLogSize)
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153 | return;
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154 |
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155 | rename(level);
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156 | open(level);
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157 | }
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158 | catch (cf::exception &e)
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159 | {
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160 | FORWARD_EXCEPTION(e);
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161 | }
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162 | }
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163 |
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164 | cf::void_t cf::logger::open(const cf::int32_t level)
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165 | throw (cf::exception)
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166 | {
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167 | try
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168 | {
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169 | if (!mOpenMutex.trylock())
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170 | {
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171 | while (mOpenMutex.isLocked())
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172 | /* waiting */;
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173 |
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174 | return;
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175 | }
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176 |
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177 | if (!cf::file(mPath.c_str()).exists())
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178 | cf::file::makedir(mPath.c_str());
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179 |
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180 | std::string prefix = mLogPool[level].mPrefix;
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181 | const cf::int32_t option = mLogPool[level].mOption;
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182 |
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183 | std::string fullpath = getFullPath(mPath, prefix, option);
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184 |
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185 | #ifdef _ON_WINDOWS
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186 | # define FOPEN_MODE "ab+"
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187 | #else
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188 | # define FOPEN_MODE "a+"
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189 | #endif
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190 | FILE * fp = fopen(fullpath.c_str(), FOPEN_MODE);
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191 | if (!fp)
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192 | THROW_EXCEPTION("cannot open logfile {" << fullpath << "} ("
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193 | << errno << ":" << strerror(errno) << ")");
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194 |
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195 | replace(prefix, option, fp);
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196 |
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197 | mOpenMutex.unlock();
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198 | }
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199 | catch (cf::exception &e)
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200 | {
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201 | mOpenMutex.unlock();
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202 | FORWARD_EXCEPTION(e);
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203 | }
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204 | }
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205 |
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206 | cf::void_t cf::logger::rename(const cf::int32_t level)
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207 | throw (cf::exception)
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208 | {
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209 | try
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210 | {
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211 | if (!mRenameMutex.trylock())
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212 | {
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213 | while (mRenameMutex.isLocked())
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214 | /* waiting */;
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215 |
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216 | return;
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217 | }
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218 |
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219 | std::string oldpath = mLogPool[level].mFullPath;
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220 | std::string newpath = oldpath;
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221 |
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222 | cf::int32_t idx = 0;
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223 | cf::bool_t continued = true;
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224 |
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225 | while (continued)
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226 | {
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227 | std::string name = newpath + "." + STR(++idx);
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228 |
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229 | file file(name.c_str());
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230 |
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231 | if (!file.exists())
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232 | break;
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233 | }
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234 |
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235 | newpath += "." + STR(idx);
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236 |
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237 | replace(mLogPool[level].mPrefix, mLogPool[level].mOption, NULL);
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238 |
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239 | file(oldpath.c_str()).rename(newpath.c_str());
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240 |
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241 | mRenameMutex.unlock();
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242 | }
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243 | catch (cf::exception &e)
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244 | {
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245 | mRenameMutex.unlock();
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246 | FORWARD_EXCEPTION(e);
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247 | }
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248 | }
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249 |
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250 | cf::void_t cf::logger::replace(const std::string & prefix,
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251 | const cf::int32_t option,
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252 | FILE * newfp)
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253 | {
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254 | FILE * oldfp = NULL;
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255 |
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256 | std::vector<cf::logger::LOG_CTX>::iterator iter;
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257 | for (iter = mLogPool.begin() ; iter != mLogPool.end() ; iter++)
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258 | {
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259 | if (iter->mPrefix == prefix && iter->mOption == option)
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260 | {
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261 | if (!oldfp)
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262 | oldfp = iter->mFP;
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263 |
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264 | iter->mFP = newfp;
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265 | }
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266 | }
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267 |
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268 | if (oldfp)
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269 | fclose(oldfp);
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270 | }
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271 |
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272 | cf::void_t cf::logger::init(const std::string & path)
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273 | {
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274 | mPath = path;
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275 | }
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276 |
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277 | cf::void_t cf::logger::add(const std::string & prefix,
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278 | const cf::int32_t level,
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279 | const std::string & description,
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280 | const cf::int32_t option,
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281 | const cf::int32_t rotationSize)
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282 | throw (cf::exception)
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283 | {
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284 | try
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285 | {
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286 | /* if already registered level */
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287 | if (level < static_cast<cf::int32_t>(mLogPool.size()))
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288 | return;
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289 |
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290 | if (level > static_cast<cf::int32_t>(mLogPool.size()))
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291 | THROW_EXCEPTION("level {" << level
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292 | << "} is not sequential(expected {"
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293 | << mLogPool.size() << "}");
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294 |
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295 | cf::logger::LOG_CTX ctx;
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296 |
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297 | ctx.mOption = option;
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298 | ctx.mOptionParam.mMaxLogSize = rotationSize * 1024 * 1024;
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299 | ctx.mPrefix = prefix;
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300 | ctx.mDescription = description;
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301 | ctx.mFullPath = getFullPath(mPath, prefix, option);
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302 | ctx.mFP = NULL;
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303 |
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304 | mLogPool.push_back(ctx);
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305 |
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306 | open(level);
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307 | }
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308 | catch (cf::exception &e)
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309 | {
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310 | FORWARD_EXCEPTION(e);
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311 | }
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312 | }
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313 |
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314 | cf::int32_t cf::logger::getLevel()
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315 | {
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316 | return mLogLevel;
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317 | }
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318 |
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319 | cf::void_t cf::logger::setLevel(const cf::int32_t level)
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320 | {
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321 | mLogLevel = level;
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322 | }
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323 |
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324 | std::string cf::logger::getPath(const cf::int32_t level) const
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325 | throw (cf::exception)
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326 | {
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327 | return mLogPool[level].mFullPath;
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328 | }
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329 |
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330 | cf::bool_t cf::logger::isRegistered(const cf::int32_t level) const
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331 | {
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332 | if (level >= static_cast<cf::int32_t>(mLogPool.size()))
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333 | return false;
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334 |
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335 | return true;
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336 | }
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337 |
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338 | cf::bool_t cf::logger::isEnabled(const cf::int32_t level) const
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339 | {
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340 | /* check registered */
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341 | if (!isRegistered(level))
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342 | return false;
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343 |
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344 | /* check option */
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345 | if (mLogPool[level].mOption & logger::FORCED)
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346 | return true;
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347 |
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348 | /* check max level */
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349 | if (level > mLogLevel)
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350 | return false;
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351 |
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352 | return true;
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353 | }
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354 |
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355 | cf::void_t cf::logger::write(const cf::int32_t level,
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356 | const std::string & msg)
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357 | {
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358 | try
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359 | {
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360 | /* check level */
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361 | if (!isRegistered(level))
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362 | THROW_EXCEPTION("{" << level << "} not registered");
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363 |
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364 | if (!isEnabled(level))
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365 | THROW_EXCEPTION("not enabled {" << level << "}");
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366 |
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367 | /* ready */
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368 | cf::int32_t option = mLogPool[level].mOption;
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369 |
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370 | cf::util::datetime dt = cf::util::getInstance()->getDateTime();
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371 |
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372 | /* rotate */
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373 | if (option & logger::DAILY)
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374 | rotateByDate(level, dt);
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375 |
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376 | if (option & logger::SIZE)
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377 | rotateBySize(level);
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378 |
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379 | if (!cf::file(mLogPool[level].mFullPath.c_str()).exists())
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380 | open(level);
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381 |
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382 | /* set current */
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383 | const cf::char_t * desc = mLogPool[level].mDescription.c_str();
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384 | cf::char_t info[64] = {0x00,};
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385 | snprintf(info, sizeof(info) - 1,
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386 | "[%04d.%02d.%02d %02d:%02d:%02d.%03d][%u]",
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387 | dt.mYear, dt.mMonth, dt.mDay,
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388 | dt.mHour, dt.mMin, dt.mSec, dt.mUsec,
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389 | task::thread::id());
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390 |
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391 | /* write */
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392 | if (mLogPool[level].mFP)
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393 | {
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394 | fprintf(mLogPool[level].mFP, "%s [%s] %s\n", info, desc, msg.c_str());
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395 | fflush(mLogPool[level].mFP);
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396 | }
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397 | }
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398 | catch (cf::exception &e)
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399 | {
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400 | fprintf(stderr, "%s\n", e.stackTrace().c_str());
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401 | fprintf(stderr, "%s\n", msg.c_str());
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402 | }
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403 | }
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