mono/utils/mono-log-common.c

   1 /**
   2  * \file
   3  * Platform-independent interface to the logger
   4  *
   5  * This module contains the POSIX syslog logger interface
   6  *
   7  * Author:
   8  *    Neale Ferguson <neale@sinenomine.net>
   9  *
  10  */
  11 #include <config.h>
  12
  13 #ifdef HAVE_UNISTD_H
  14 #include <unistd.h>
  15 #endif
  16
  17 #include <stdlib.h>
  18 #include <stdio.h>
  19 #include <ctype.h>
  20 #include <string.h>
  21 #include <glib.h>
  22 #include <errno.h>
  23 #include <time.h>
  24 #ifndef HOST_WIN32
  25 #include <sys/time.h>
  26 #else
  27 #include <process.h>
  28 #endif
  29 #include "mono-logger-internals.h"
  30 #include "mono-proclib.h"
  31
  32 static FILE *logFile = NULL;
  33 static void *logUserData = NULL;
  34
  35 /**
  36  * mapSyslogLevel:
  37  *
  38  *      @level - GLogLevelFlags value
  39  *      @returns The equivalent character identifier
  40  */
  41 static inline char
  42 mapLogFileLevel(GLogLevelFlags level)
  43 {
  44         if (level & G_LOG_LEVEL_ERROR)
  45                 return ('E');
  46         if (level & G_LOG_LEVEL_CRITICAL)
  47                 return ('C');
  48         if (level & G_LOG_LEVEL_WARNING)
  49                 return ('W');
  50         if (level & G_LOG_LEVEL_MESSAGE)
  51                 return ('N');
  52         if (level & G_LOG_LEVEL_INFO)
  53                 return ('I');
  54         if (level & G_LOG_LEVEL_DEBUG)
  55                 return ('D');
  56         return ('I');
  57 }
  58
  59 /**
  60  * mono_log_open_logfile:
  61  * \param path Path for log file
  62  * \param userData Not used
  63  * Open the logfile. If the path is not specified default to stdout. If the
  64  * open fails issue a warning and use stdout as the log file destination.
  65  */
  66 void
  67 mono_log_open_logfile(const char *path, void *userData)
  68 {
  69         if (path == NULL) {
  70                 logFile = stdout;
  71         } else {
  72 #ifndef HOST_WIN32
  73                 logFile = fopen(path, "w");
  74 #else
  75                 gunichar2 *wPath = g_utf8_to_utf16(path, -1, 0, 0, 0);
  76                 if (wPath != NULL) {
  77                         logFile = _wfopen((wchar_t *) wPath, L"w");
  78                         g_free (wPath);
  79                 }
  80 #endif
  81                 if (logFile == NULL) {
  82                         g_warning("opening of log file %s failed with %s - defaulting to stdout",
  83                                   path, strerror(errno));
  84                         logFile = stdout;
  85                 }
  86         }
  87         logUserData = userData;
  88 }
  89
  90 /**
  91  * mono_log_write_logfile:
  92  * \param domain Identifier string
  93  * \param level Logging level flags
  94  * \param format \c printf format string
  95  * \param vargs Variable argument list
  96  * Write data to the log file.
  97  */
  98 void
  99 mono_log_write_logfile (const char *log_domain, GLogLevelFlags level, mono_bool hdr, const char *message)
 100 {
 101         time_t t;
 102
 103         if (logFile == NULL)
 104                 logFile = stdout;
 105
 106         if (hdr) {
 107                 pid_t pid;
 108                 char logTime [80];
 109
 110 #ifdef HAVE_LOCALTIME_R
 111                 struct tm tod;
 112                 time(&t);
 113                 localtime_r(&t, &tod);
 114                 strftime(logTime, sizeof(logTime), "%Y-%m-%d %H:%M:%S", &tod);
 115 #else
 116                 struct tm *tod;
 117                 time(&t);
 118                 tod = localtime(&t);
 119                 strftime(logTime, sizeof(logTime), "%F %T", tod);
 120 #endif
 121
 122                 pid = mono_process_current_pid ();
 123
 124                 fprintf (logFile, "%s level[%c] mono[%d]: %s\n", logTime, mapLogFileLevel (level), pid, message);
 125         } else {
 126                 fprintf (logFile, "%s%s%s\n",
 127                         log_domain != NULL ? log_domain : "",
 128                         log_domain != NULL ? ": " : "",
 129                         message);
 130         }
 131
 132         fflush(logFile);
 133
 134         if (level & G_LOG_LEVEL_ERROR)
 135                 abort();
 136 }
 137
 138 /**
 139  * mono_log_close_logfile:
 140  * Close the log file
 141  */
 142 void
 143 mono_log_close_logfile()
 144 {
 145         if (logFile) {
 146                 if (logFile != stdout)
 147                         fclose(logFile);
 148                 logFile = NULL;
 149         }
 150 }