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/*
This file is part of GNUnet.
Copyright (C)
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file rps/gnunet-service-rps_view.h
* @brief wrapper around the "local view"
* @author Julius Bünger
*/
#include "gnunet_util_lib.h"
#include <inttypes.h>
/**
* Create an empty view.
*
* @param len the maximum length for the view
*/
void
View_create (unsigned int len);
/**
* Change length of view
*
* If size is decreased, peers with higher indices are removed.
*
* @param len the (maximum) length for the view
*/
void
View_change_len (unsigned int len);
/**
* Get the view as an array
*
* @return the view in array representation
*/
const struct GNUNET_PeerIdentity *
View_get_as_array ();
/**
* Get the size of the view
*
* @return current number of actually contained peers
*/
unsigned int
View_size ();
/**
* Insert peer into the view
*
* @param peer the peer to insert
*
* @return GNUNET_OK if peer was actually inserted
* GNUNET_NO if peer was not inserted
*/
int
View_put (const struct GNUNET_PeerIdentity *peer);
/**
* Check whether view contains a peer
*
* @param peer the peer to check for
*
* @return GNUNET_OK if view contains peer
* GNUNET_NO otherwise
*/
int
View_contains_peer (const struct GNUNET_PeerIdentity *peer);
/**
* Remove peer from view
*
* @param peer the peer to remove
*
* @return GNUNET_OK if view contained peer and removed it successfully
* GNUNET_NO if view does not contain peer
*/
int
View_remove_peer (const struct GNUNET_PeerIdentity *peer);
/**
* Get a peer by index
*
* @param index the index of the peer to get
*
* @return peer to the corresponding index.
* NULL if this index is not known
*/
const struct GNUNET_PeerIdentity *
View_get_peer_by_index (uint32_t index);
/**
* Clear the custom peer map
*
* @param c_peer_map the custom peer map to look in
*
* @return size of the map
*/
void
View_clear ();
/**
* Destroy peermap.
*
* @param c_peer_map the map to destroy
*/
void
View_destroy ();
/* end of gnunet-service-rps_view.h */
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