Mercurial > hg > fxanalyse

annotate logging.c @ 252:d948e3ced2b9

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Fix previous commit
author Daniele Nicolodi <daniele.nicolodi@obspm.fr>
date Thu, 28 May 2015 17:20:45 +0200
parents 307fd62f376d
children 3622e24a443f
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1 #include <ansi_c.h>
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2 #include <inifile.h>
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3 #include <lowlvlio.h>
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4 #include <ansi_c.h>
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5
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6 #include "config.h"
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7 #include "logging.h"
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8
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9 /* this refers to the event time defined as a global variable in the main program */
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10 extern double utc;
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11 /* main panel id */
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12 extern unsigned int MainPanel;
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13
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14
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15 struct logger {
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16 unsigned int panel;
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17 char *dirpath;
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18 char *filepath;
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19 int fd;
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20 int level;
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21 int yday;
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22 void(*onerror)(int, const char *);
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23 };
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24
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25
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26 static const char *levels[] = {
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27 [ERROR] = "ERROR",
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28 [WARNING] = "WARNING",
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29 [INFO] = "INFO",
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30 [DEBUG] = "DEBUG",
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31 };
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32
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33
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34 static inline int strtolevel(const char *str)
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35 {
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36 for (int i = 0; i < 4; i++) {
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37 if (streq(levels[i], str))
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38 return i;
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39 }
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40 return DEBUG;
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41 }
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42
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43
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44 static int rotate(struct logger *l, struct tm *t)
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45 {
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46 int len, rv;
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47 char id[7];
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48
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49 if (! l->dirpath)
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50 return 0;
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51
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52 if (l->yday == t->tm_yday)
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53 return 0;
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54
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55 /* close old file descriptor */
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56 close(l->fd);
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57 l->fd = -1;
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58
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59 /* construct new file name */
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60 strftime(id, sizeof(id), "%y%m%d", t);
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61 len = strlen(l->dirpath) + 1 + sizeof(id) + strlen("-Log.txt") + 1;
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62 l->filepath = malloc(len);
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63 snprintf(l->filepath, len, "%s\\%s-Log.txt", l->dirpath, id);
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64
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65 /* open new log file */
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66 rv = open(l->filepath, O_CREAT|O_WRONLY|O_APPEND, 00744);
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67 if (rv < 0)
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68 return rv;
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69
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70 /* update status */
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71 l->fd = rv;
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72 l->yday = t->tm_yday;
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73 __logmessage(l, DEBUG, "logging to '%s'", l->filepath);
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74
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75 return 1;
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76 }
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78
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79 struct logger * __logger_init(void(*onerror)(int, const char *))
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80 {
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81 int rv, panel;
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82 char path[MAX_PATHNAME_LEN], *str;
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83
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84 struct logger *l = malloc(sizeof(struct logger));
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85 memset(l, 0, sizeof(*l));
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86
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87 l->onerror = onerror;
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88 l->fd = -1;
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89 l->level = DEBUG;
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90
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91 panel = LoadPanel(0, "FXAnalyse.uir", LOGGING);
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92 if (panel < 0)
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93 return NULL;
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94 l->panel = panel;
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95
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96 /* configuration file path */
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97 GetIniFilePath(path);
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98
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99 /* load configuration file */
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100 IniText configuration = Ini_New(TRUE);
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101 Ini_ReadFromFile(configuration, path);
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102
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103 /* logging folder path */
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104 rv = Ini_GetStringCopy(configuration, "logging", "folder", &l->dirpath);
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105
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106 /* logging level */
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107 rv = Ini_GetStringCopy(configuration, "logging", "level", &str);
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108 if (rv > 0) {
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109 l->level = strtolevel(str);
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110 free(str);
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111 }
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112
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113 Ini_Dispose(configuration);
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114
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115 return l;
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116 }
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117
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118
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119 void __logmessage(struct logger *l, enum loglevel level, const char *frmt, ...)
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120 {
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121 char msg[1024];
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122 int len = 0;
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123
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124 /* timestamp */
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125 len += sprintf(msg, "%014.3f ", utc);
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126 time_t now = (time_t)utc;
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127 if (now == 0)
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128 now = time(NULL);
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129 struct tm *t = localtime(&now);
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130 len += strftime(msg + len, sizeof(msg) - len, "%d-%m-%Y %H:%M:%S ", t);
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131
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132 /* level */
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133 len += snprintf(msg + len, sizeof(msg) - len, "%s: ", levels[level]);
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134
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135 /* message */
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136 va_list args;
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137 va_start(args, frmt);
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138 len += vsnprintf(msg + len, sizeof(msg) - len, frmt, args);
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139 va_end(args);
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140
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141 /* newline */
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142 len = MIN(len, sizeof(msg) - 3);
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143 msg[len++] = '\r';
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144 msg[len++] = '\n';
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145
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146 /* string terminator */
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147 msg[len] = '\0';
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148
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149 /* rotate log file based on current date */
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150 rotate(l, t);
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151
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152 /* write to log file */
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153 if ((level <= l->level) && (l->fd >= 0))
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154 write(l->fd, msg, len);
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155
191
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156 /* display message */
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157 SetCtrlVal(l->panel, LOGGING_LOGGING, msg);
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158
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159 /* report error */
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160 if (level == ERROR)
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161 l->onerror(level, msg);
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162 }
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163
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164
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165 void __logger_panel_visible(struct logger *l, int visible)
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166 {
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167 SetPanelAttribute(l->panel, ATTR_VISIBLE, visible);
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168 }