/*******************************************************************************

  Eurecom OpenAirInterface
  Copyright(c) 1999 - 2011 Eurecom

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope 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.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information
  Openair Admin: openair_admin@eurecom.fr
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*******************************************************************************/

/*! \file mobility_parser.h
* \brief A parser for trace-based mobility information (parsed from a file)
* \author  S. Uppoor
* \date 2011
* \version 0.1
* \company INRIA
* \email: sandesh.uppor@inria.fr
* \note
* \warning
*/

#ifndef MOBILITY_PARSER_H_
#define MOBILITY_PARSER_H_

#include "trace_hashtable.h"


/*
 * function reads each line and checks if vehicle has an entry in the hastable,
 * if so append append is called else a new linked list to the vehicle is created.
 * @param need mobility file to be given
 */

void parse_data (char *trace_file, int node_type);	// mobility file need to be given here, add in omg_param_list, get it from there

/**
 * function builds a linked list which holds vehicle id and its mapping pointer to
 * the head of the linked list in the hash table.
 * @param headRef is the pointer to this linked list
 * @param vid is the vehicle id
 * @param pointer to the head of the linked list to the vehicle entry in the hash table
 */
void add_node_info (int nid,int n_gid, int node_type);
int find_node_info (int vid, int node_type);

/**
 * just counts the number of nodes in the mobility file
 */
int get_number_of_nodes (int node_type);




/**
 * function returns the node containing next position (just reads the linked list from the hashtable)
 * and never repeats, each time next location ahead of the current is returned
 * @param hashtable from which the node is to be looked
 * @param node_id is the nodes whose next location need to be retrieved from the linked list
 */
node_data* get_next_data (hash_table_t* table, int vid, int flag);



#endif /* MOBILITY_PARSER_H_ */