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tap-stats_tree.c

/* tap-stats_tree.c
 * tshark's tap implememntation of stats_tree
 * 2005, Luis E. G. Ontanon
 *
 * $Id: tap-stats_tree.c 18268 2006-05-31 17:38:42Z gerald $
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <string.h>
#include <stdio.h>
#include <glib.h>
#include <epan/stats_tree_priv.h>
#include <epan/stat_cmd_args.h>
#include <epan/report_err.h>

/* actually unused */
struct _st_node_pres {
      void* dummy;
};

struct _tree_pres {
      void* dummy;
};

struct _tree_cfg_pres {
      guint8* init_string;    
};

static void draw_stats_tree(void *psp) {
      stats_tree *st = psp;
      GString* s;
      gchar* fmt;
      stat_node* child;
      
      s = g_string_new("\n===================================================================\n");
      fmt = g_strdup_printf(" %%s%%-%us%%12s\t%%12s\t%%12s\n",stats_tree_branch_max_namelen(&st->root,0));
      g_string_sprintfa(s,fmt,"",st->cfg->name,"value","rate","percent");
      g_free(fmt);
      g_string_sprintfa(s,"-------------------------------------------------------------------\n");
      
      for (child = st->root.children; child; child = child->next ) {
            stats_tree_branch_to_str(child,s,0);
      }
      
      s = g_string_append(s,"\n===================================================================\n");
      
      printf("%s",s->str);
      
}

static void  init_stats_tree(const char *optarg,void* userdata _U_) {
      guint8* abbr = stats_tree_get_abbr(optarg);
      GString     *error_string;
      stats_tree_cfg *cfg = NULL;
      stats_tree* st = NULL;
      
      if (abbr) {
            cfg = stats_tree_get_cfg_by_abbr(abbr);

            if (cfg != NULL) {
                  if (strncmp (optarg, cfg->pr->init_string, strlen(cfg->pr->init_string)) == 0){
                        st = stats_tree_new(cfg,NULL,((guint8*)optarg)+strlen(cfg->pr->init_string));
                  } else {
                        report_failure("Wrong stats_tree (%s) found when looking at ->init_string",abbr);
                        return;
                  }
            } else {
                  report_failure("no such stats_tree (%s) found in stats_tree registry",abbr);
                  return;
            }
            
            g_free(abbr);
            
      } else {
            report_failure("could not obtain stats_tree abbr (%s) from grg '%s'",abbr,optarg);        
            return;
      }
      
      error_string = register_tap_listener( st->cfg->tapname,
                                                              st,
                                                              st->filter,
                                                              stats_tree_reset,
                                                              stats_tree_packet,
                                                              draw_stats_tree);
      
      if (error_string) {
            report_failure("stats_tree for: %s failed to attach to the tap: %s",cfg->name,error_string->str);
            return;
      }

      if (cfg->init) cfg->init(st);

}

void register_stats_tree_tap (gpointer k _U_, gpointer v, gpointer p _U_) {
      stats_tree_cfg* cfg = v;
      
      cfg->pr = g_malloc(sizeof(tree_cfg_pres));
      cfg->pr->init_string = g_strdup_printf("%s,tree",cfg->abbr);

      register_stat_cmd_arg(cfg->pr->init_string, init_stats_tree, NULL);
      
}

static void free_tree_presentation(stats_tree* st) {
      g_free(st->pr);
}


void
register_tap_listener_stats_tree_stat(void)
{
      stats_tree_presentation(register_stats_tree_tap,
                                          NULL, NULL, NULL, NULL, NULL,
                                          free_tree_presentation, NULL, NULL, NULL);
}

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