src/xbt/xbt_log_layout_simple.c

   1 /* $Id$ */
   2
   3 /* layout_simple - a dumb log layout                                        */
   4
   5 /* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved.            */
   6
   7 /* This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the license (GNU LGPL) which comes with this package. */
   9
  10 #include "xbt/sysdep.h"
  11 #include "xbt/strbuff.h" /* For dynamic version when the static one fails */
  12 #include "xbt/log_private.h"
  13 #include "xbt/synchro.h" /* xbt_thread_name */
  14
  15 #include "gras/virtu.h"
  16 #include <stdio.h>
  17 #include "portable.h"
  18
  19 extern const char *xbt_log_priority_names[7];
  20
  21 static double begin_of_time = -1;
  22
  23 static void xbt_log_layout_simple_dynamic(xbt_log_layout_t l,
  24                                           xbt_log_event_t ev,
  25                                           const char*fmt,
  26                                           xbt_log_appender_t app) {
  27    xbt_strbuff_t buff = xbt_strbuff_new();
  28    char loc_buff[256];
  29    char *p;
  30
  31    /* Put every static information in a static buffer, and copy them in the dyn one */
  32    p = loc_buff;
  33    p += snprintf(p,256-(p-ev->buffer),"[");
  34
  35    if(strlen(xbt_procname()))
  36      p += snprintf(p,256-(p-ev->buffer),"%s:%s:(%d) ",
  37                    gras_os_myname(), xbt_procname(),(*xbt_getpid)());
  38    p += snprintf(p,256-(p-ev->buffer),"%f] ", gras_os_time()-begin_of_time);
  39    if (ev->priority != xbt_log_priority_info)
  40      p += snprintf(p,256-(p-ev->buffer), "%s:%d: ", ev->fileName, ev->lineNum);
  41    p += snprintf(p,256-(p-ev->buffer), "[%s/%s] ",
  42                  ev->cat->name, xbt_log_priority_names[ev->priority] );
  43
  44    xbt_strbuff_append(buff,ev->buffer);
  45
  46    vasprintf(&p,fmt,ev->ap_copy);
  47    xbt_strbuff_append(buff,p);
  48    free(p);
  49
  50    xbt_strbuff_append(buff,"\n");
  51
  52    app->do_append(app,buff->data);
  53    xbt_strbuff_free(buff);
  54 }
  55
  56 /* only used after the format using: we suppose that the buffer is big enough to display our data */
  57 #define check_overflow \
  58   if (p-ev->buffer > XBT_LOG_BUFF_SIZE) { /* buffer overflow */ \
  59      xbt_log_layout_simple_dynamic(l,ev,fmt,app); \
  60      return; \
  61   }
  62
  63 static void xbt_log_layout_simple_doit(xbt_log_layout_t l,
  64                                        xbt_log_event_t ev,
  65                                        const char *fmt,
  66                                        xbt_log_appender_t app) {
  67   char *p;
  68
  69   xbt_assert0(ev->priority>=0,
  70               "Negative logging priority naturally forbidden");
  71   xbt_assert1(ev->priority<sizeof(xbt_log_priority_names),
  72               "Priority %d is greater than the biggest allowed value",
  73               ev->priority);
  74
  75   if (begin_of_time<0)
  76     begin_of_time=gras_os_time();
  77
  78   p = ev->buffer;
  79   p += snprintf(p,XBT_LOG_BUFF_SIZE-(p-ev->buffer),"[");
  80
  81   /* Display the proc info if available */
  82   if(strlen(xbt_procname()))
  83     p += snprintf(p,XBT_LOG_BUFF_SIZE-(p-ev->buffer),"%s:%s:(%d) ",
  84                  gras_os_myname(), xbt_procname(),(*xbt_getpid)());
  85
  86   /* Display the date */
  87   p += snprintf(p,XBT_LOG_BUFF_SIZE-(p-ev->buffer),"%f] ", gras_os_time()-begin_of_time);
  88
  89   /* Display file position if not INFO*/
  90   if (ev->priority != xbt_log_priority_info)
  91     p += snprintf(p,XBT_LOG_BUFF_SIZE-(p-ev->buffer), "%s:%d: ", ev->fileName, ev->lineNum);
  92
  93   /* Display category name */
  94   p += snprintf(p,XBT_LOG_BUFF_SIZE-(p-ev->buffer), "[%s/%s] ",
  95                ev->cat->name, xbt_log_priority_names[ev->priority] );
  96
  97   /* Display user-provided message */
  98   p += vsnprintf(p,XBT_LOG_BUFF_SIZE-(p-ev->buffer), fmt, ev->ap);
  99   check_overflow;
 100
 101   /* End it */
 102   p += snprintf(p,XBT_LOG_BUFF_SIZE-(p-ev->buffer), "\n");
 103   check_overflow;
 104   app->do_append(app,ev->buffer);
 105 }
 106
 107 xbt_log_layout_t xbt_log_layout_simple_new(char *arg) {
 108   xbt_log_layout_t res = xbt_new0(s_xbt_log_layout_t,1);
 109   res->do_layout = xbt_log_layout_simple_doit;
 110   return res;
 111 }