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);
  15
  16
  17 /**
  18  * The root category's default logging function.
  19  */
  20
  21 extern const char *gras_log_priority_names[7];
  22
  23 static void append_file(gras_log_appender_t* this, gras_log_event_t* ev,
  24                         const char *fmt);
  25
  26 /*
  27 struct gras_log_appender_file_s {
  28   gras_log_appender_t* appender;
  29   FILE *file;
  30 };
  31 */
  32
  33 static gras_log_appender_t gras_log_appender_file = { append_file, NULL } ;
  34 /* appender_data=FILE* */
  35
  36 gras_log_appender_t* gras_log_default_appender  = &gras_log_appender_file;
  37
  38 static void append_file(gras_log_appender_t* this,
  39                         gras_log_event_t* ev,
  40                         const char *fmt) {
  41
  42     // TODO: define a format field in struct for timestamp, etc.
  43     //    struct DefaultLogAppender* this = (struct DefaultLogAppender*)this0;
  44
  45     if ((FILE*)(this->appender_data) == NULL)
  46       this->appender_data = (void*)stderr;
  47
  48     gras_assert0(ev->priority>=0,
  49                  "Negative logging priority naturally forbidden");
  50     gras_assert1(ev->priority<sizeof(gras_log_priority_names),
  51                  "Priority %d is greater than the biggest allowed value",
  52                  ev->priority);
  53
  54     fprintf(stderr, "%s:%d: ", ev->fileName, ev->lineNum);
  55     fprintf(stderr, "[%s/%s] ",
  56             ev->cat->name, gras_log_priority_names[ev->priority]);
  57     vfprintf(stderr, fmt, ev->ap);
  58     fprintf(stderr, "\n");
  59 }