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 #include "mono-time.h"
  32
  33 static FILE *logFile = NULL;
  34 static void *logUserData = NULL;
  35
  36 /**
  37  * mapSyslogLevel:
  38  *
  39  *      @level - GLogLevelFlags value
  40  *      @returns The equivalent character identifier
  41  */
  42 static inline char
  43 mapLogFileLevel(GLogLevelFlags level)
  44 {
  45         if (level & G_LOG_LEVEL_ERROR)
  46                 return ('E');
  47         if (level & G_LOG_LEVEL_CRITICAL)
  48                 return ('C');
  49         if (level & G_LOG_LEVEL_WARNING)
  50                 return ('W');
  51         if (level & G_LOG_LEVEL_MESSAGE)
  52                 return ('N');
  53         if (level & G_LOG_LEVEL_INFO)
  54                 return ('I');
  55         if (level & G_LOG_LEVEL_DEBUG)
  56                 return ('D');
  57         return ('I');
  58 }
  59
  60 /**
  61  * mono_log_open_logfile:
  62  * \param path Path for log file
  63  * \param userData Not used
  64  * Open the logfile. If the path is not specified default to stdout. If the
  65  * open fails issue a warning and use stdout as the log file destination.
  66  */
  67 void
  68 mono_log_open_logfile(const char *path, void *userData)
  69 {
  70         if (path == NULL) {
  71                 logFile = stdout;
  72         } else {
  73 #ifndef HOST_WIN32
  74                 logFile = fopen(path, "w");
  75 #else
  76                 gunichar2 *wPath = g_utf8_to_utf16(path, -1, 0, 0, 0);
  77                 if (wPath != NULL) {
  78                         logFile = _wfopen((wchar_t *) wPath, L"w");
  79                         g_free (wPath);
  80                 }
  81 #endif
  82                 if (logFile == NULL) {
  83                         g_warning("opening of log file %s failed with %s - defaulting to stdout",
  84                                   path, strerror(errno));
  85                         logFile = stdout;
  86                 }
  87         }
  88         logUserData = userData;
  89 }
  90
  91 /**
  92  * mono_log_write_logfile:
  93  * \param domain Identifier string
  94  * \param level Logging level flags
  95  * \param format \c printf format string
  96  * \param vargs Variable argument list
  97  * Write data to the log file.
  98  */
  99 void
 100 mono_log_write_logfile (const char *log_domain, GLogLevelFlags level, mono_bool hdr, const char *message)
 101 {
 102         time_t t;
 103
 104         if (logFile == NULL)
 105                 logFile = stdout;
 106
 107         if (hdr) {
 108                 pid_t pid;
 109                 char logTime [80];
 110
 111 #ifdef HAVE_LOCALTIME_R
 112                 struct tm tod;
 113                 time(&t);
 114                 localtime_r(&t, &tod);
 115                 strftime(logTime, sizeof(logTime), MONO_STRFTIME_F " " MONO_STRFTIME_T, &tod);
 116 #else
 117                 struct tm *tod;
 118                 time(&t);
 119                 tod = localtime(&t);
 120                 strftime(logTime, sizeof(logTime), MONO_STRFTIME_F " " MONO_STRFTIME_T, tod);
 121 #endif
 122
 123                 pid = mono_process_current_pid ();
 124
 125                 fprintf (logFile, "%s level[%c] mono[%d]: %s\n", logTime, mapLogFileLevel (level), pid, message);
 126         } else {
 127                 fprintf (logFile, "%s%s%s\n",
 128                         log_domain != NULL ? log_domain : "",
 129                         log_domain != NULL ? ": " : "",
 130                         message);
 131         }
 132
 133         fflush(logFile);
 134
 135         if (level & G_LOG_LEVEL_ERROR)
 136                 g_assert_abort ();
 137 }
 138
 139 /**
 140  * mono_log_close_logfile:
 141  * Close the log file
 142  */
 143 void
 144 mono_log_close_logfile()
 145 {
 146         if (logFile) {
 147                 if (logFile != stdout)
 148                         fclose(logFile);
 149                 logFile = NULL;
 150         }
 151 }