123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138 |
- /*
- This file is part of GNUnet.
- (C) 2011 - 2014 Christian Grothoff (and other contributing authors)
- GNUnet 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 3, or (at your
- option) any later version.
- GNUnet 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 GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
- */
- /**
- * @file dht/gnunet-service-xdht_routing.h
- * @brief GNUnet DHT tracking of requests for routing replies
- * @author Christian Grothoff
- */
- #ifndef GNUNET_SERVICE_XDHT_ROUTING_H
- #define GNUNET_SERVICE_XDHT_ROUTING_H
- #include "gnunet_util_lib.h"
- #include "gnunet_block_lib.h"
- #include "gnunet_dht_service.h"
- /**
- * To understand the direction in which trial should be read.
- */
- enum GDS_ROUTING_trail_direction
- {
- GDS_ROUTING_SRC_TO_DEST,
- GDS_ROUTING_DEST_TO_SRC
- };
- /**
- * Update the prev. hop of the trail. Call made by trail teardown where
- * if you are the first friend now in the trail then you need to update
- * your prev. hop.
- * @param trail_id
- * @return #GNUNET_OK success
- * #GNUNET_SYSERR in case no matching entry found in routing table.
- */
- int
- GDS_ROUTING_update_trail_prev_hop (struct GNUNET_HashCode trail_id,
- struct GNUNET_PeerIdentity prev_hop);
- /**
- * Update the next hop of the trail. Call made by trail compression where
- * if you are source of the trail and now you have a new first friend, then
- * you should update the trail.
- * @param trail_id
- * @return #GNUNET_OK success
- * #GNUNET_SYSERR in case no matching entry found in routing table.
- */
- int
- GDS_ROUTING_update_trail_next_hop (const struct GNUNET_HashCode trail_id,
- struct GNUNET_PeerIdentity next_hop);
- /**
- * Get the next hop for trail corresponding to trail_id
- * @param trail_id Trail id to be searched.
- * @return Next_hop if found
- * NULL If next hop not found.
- */
- struct GNUNET_PeerIdentity *
- GDS_ROUTING_get_next_hop (struct GNUNET_HashCode trail_id,
- enum GDS_ROUTING_trail_direction trail_direction);
- /**
- * Remove every trail where peer is either next_hop or prev_hop
- * @param peer Peer to be searched.
- */
- int
- GDS_ROUTING_remove_trail_by_peer (const struct GNUNET_PeerIdentity *peer);
- /**
- * Remove trail with trail_id
- * @param trail_id Trail id to be removed
- * @return #GNUNET_YES success
- * #GNUNET_NO if entry not found.
- */
- int
- GDS_ROUTING_remove_trail (struct GNUNET_HashCode remove_trail_id);
- /**
- * Add a new entry in routing table
- * @param new_trail_id
- * @param prev_hop
- * @param next_hop
- * @return #GNUNET_OK success
- * #GNUNET_SYSERR in case new_trail_id already exists in the network
- * but with different prev_hop/next_hop
- */
- int
- GDS_ROUTING_add (struct GNUNET_HashCode new_trail_id,
- struct GNUNET_PeerIdentity prev_hop,
- struct GNUNET_PeerIdentity next_hop);
- /**
- * Check if the size of routing table has crossed threshold.
- * @return #GNUNET_YES, if threshold crossed
- * #GNUNET_NO, if size is within threshold
- */
- int
- GDS_ROUTING_threshold_reached (void);
- #if 0
- /**
- * Test function. Remove afterwards.
- */
- void
- GDS_ROUTING_test_print (void);
- #endif
- /**
- * Initialize routing subsystem.
- */
- void
- GDS_ROUTING_init (void);
- /**
- * Shutdown routing subsystem.
- */
- void
- GDS_ROUTING_done (void);
- #endif
|