src/xbt/log_default_appender.c

   1 /* $Id$ */
   2
   3 /* file_appender - a dumb log appender which simply prints to stdout        */
   4
   5 /* Authors: Martin Quinson                                                  */
   6 /* Copyright (C) 2003, 2004 Martin Quinson.                                 */
   7
   8 /* This program is free software; you can redistribute it and/or modify it
   9    under the terms of the license (GNU LGPL) which comes with this package. */
  10
  11 #include "gras_private.h"
  12 #include <stdio.h>
  13
  14 GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(log_app,log,"default logging handler");
  15
  16 /**
  17  * The root category's default logging function.
  18  */
  19
  20 extern const char *gras_log_priority_names[7];
  21
  22 static void append_file(gras_log_appender_t* this, gras_log_event_t* ev,
  23                         const char *fmt);
  24
  25 /*
  26 struct gras_log_appender_file_s {
  27   gras_log_appender_t* appender;
  28   FILE *file;
  29 };
  30 */
  31
  32 static gras_log_appender_t gras_log_appender_file = { append_file, NULL } ;
  33 /* appender_data=FILE* */
  34
  35 gras_log_appender_t* gras_log_default_appender  = &gras_log_appender_file;
  36
  37 static void append_file(gras_log_appender_t* this,
  38                         gras_log_event_t* ev,
  39                         const char *fmt) {
  40
  41   /* TODO: define a format field in struct for timestamp, etc.
  42      struct DefaultLogAppender* this = (struct DefaultLogAppender*)this0;*/
  43
  44     if ((FILE*)(this->appender_data) == NULL)
  45       this->appender_data = (void*)stderr;
  46
  47     gras_assert0(ev->priority>=0,
  48                  "Negative logging priority naturally forbidden");
  49     gras_assert1(ev->priority<sizeof(gras_log_priority_names),
  50                  "Priority %d is greater than the biggest allowed value",
  51                  ev->priority);
  52
  53     fprintf(stderr, "%s:%d: ", ev->fileName, ev->lineNum);
  54     fprintf(stderr, "[%s/%s] ",
  55             ev->cat->name, gras_log_priority_names[ev->priority]);
  56     vfprintf(stderr, fmt, ev->ap);
  57     fprintf(stderr, "\n");
  58 }