examples/c/dht-kademlia/routing_table.h

   1 /* Copyright (c) 2012-2021. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #ifndef _DHT_KADEMLIA_ROUTING_TABLE
   8 #define _DHT_KADEMLIA_ROUTING_TABLE
   9 #include "common.h"
  10 #include <xbt/dynar.h>
  11
  12 /* Routing table bucket */
  13 typedef struct s_bucket {
  14   xbt_dynar_t nodes; // Nodes in the bucket.
  15   unsigned int id;   // bucket id
  16 } s_bucket_t;
  17
  18 typedef s_bucket_t* bucket_t;
  19 typedef const s_bucket_t* const_bucket_t;
  20
  21 /* Node routing table */
  22 typedef struct s_routing_table {
  23   unsigned int id;     // node id of the client's routing table
  24   s_bucket_t* buckets; // Node bucket list - 160 sized.
  25 } s_routing_table_t;
  26
  27 typedef s_routing_table_t* routing_table_t;
  28 typedef const s_routing_table_t* const_routing_table_t;
  29
  30 // bucket functions
  31 unsigned int bucket_find_id(const_bucket_t bucket, unsigned int id);
  32
  33 // routing table functions
  34 routing_table_t routing_table_init(unsigned int node_id);
  35 void routing_table_free(routing_table_t table);
  36 void routing_table_print(const_routing_table_t table);
  37 bucket_t routing_table_find_bucket(const_routing_table_t table, unsigned int id);
  38
  39 #endif /* _DHT_KADEMLIA_ROUTING_TABLE */