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annotate logging.c @ 225:64db9d10164b

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author Daniele Nicolodi <daniele.nicolodi@obspm.fr>
date Thu, 18 Sep 2014 18:13:55 +0200
parents 111610d871af
children 28a56e4c06a4
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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
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5 #include "config.h"
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6 #include "logging.h"
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7
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8 /* this refers to the event time defined as a global variable in the main program */
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9 extern double utc;
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10 /* main panel id */
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11 extern unsigned int MainPanel;
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12
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13
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14 int __logger_init(struct logger *l, void(*onerror)(int, const char *))
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15 {
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16 int rv, panel;
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17 char path[MAX_PATHNAME_LEN], *filename;
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18
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19 l->onerror = onerror;
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20 l->fd = -1;
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21
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22 panel = LoadPanel(0, "FXAnalyse.uir", LOGGING);
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23 if (panel < 0)
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24 return -1;
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25 l->panel = panel;
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26
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27 /* configuration file path */
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28 GetIniFilePath(path);
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29
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30 /* load configuration file */
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31 IniText configuration = Ini_New(TRUE);
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32 Ini_ReadFromFile(configuration, path);
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33
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34 /* logging file name */
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35 rv = Ini_GetStringCopy(configuration, "logging", "filename", &filename);
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36 if (rv > 0)
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37 l->fd = open(filename, O_CREAT|O_WRONLY|O_APPEND, 00744);
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38
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39 free(filename);
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40 Ini_Dispose(configuration);
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41
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42 return 0;
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43 }
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46 void __logmessage(struct logger *l, enum loglevel level, const char *frmt, ...)
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47 {
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48 static const char *levels[] = {
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49 "DEBUG",
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50 "INFO",
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51 "WARNING",
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52 "ERROR",
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53 };
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54
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55 char msg[1024];
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56 int len = 0;
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57
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58 /* timestamp */
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59 len += sprintf(msg, "%014.3f ", utc);
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60 time_t now = time(NULL);
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61 struct tm *t = localtime(&now);
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62 len += strftime(msg + len, sizeof(msg) - len, "%d-%m-%Y %H:%M:%S ", t);
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63
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64 /* level */
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65 len += snprintf(msg + len, sizeof(msg) - len, "%s: ", levels[level]);
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66
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67 /* message */
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68 va_list args;
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69 va_start(args, frmt);
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70 len += vsnprintf(msg + len, sizeof(msg) - len, frmt, args);
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71 va_end(args);
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72
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73 /* newline */
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74 len = MIN(len, sizeof(msg) - 3);
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75 msg[len++] = '\r';
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76 msg[len++] = '\n';
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77
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78 /* string terminator */
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79 msg[len] = '\0';
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81 /* display message */
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82 SetCtrlVal(l->panel, LOGGING_LOGGING, msg);
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83
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84 /* report error */
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85 if (level == ERROR)
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86 l->onerror(level, msg);
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87
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88 /* write to log file */
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89 if (l->fd >= 0)
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90 write(l->fd, msg, len);
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91 }