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/*
This file is part of GNUnet.
Copyright (C) 2011-2014 GNUnet e.V.
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.
*/
/**
* @file ats/gnunet-service-ats_preferences.h
* @brief manage preferences expressed by clients
* @author Matthias Wachs
* @author Christian Grothoff
*/
#ifndef GNUNET_SERVICE_ATS_PREFERENCES_H
#define GNUNET_SERVICE_ATS_PREFERENCES_H
#include "gnunet_util_lib.h"
#include "gnunet_ats_service.h"
#include "gnunet-service-ats.h"
#include "gnunet_statistics_service.h"
#include "ats.h"
/**
* Default preference value we assume if we know nothing.
*/
#define DEFAULT_ABS_PREFERENCE 0.0
/**
* Default relative preference value we assume if we know nothing.
*/
#define DEFAULT_REL_PREFERENCE 0.0
/**
* Handle 'preference change' messages from clients.
*
* @param client the client that sent the request
* @param msg the request message
*/
void
GAS_handle_preference_change (struct GNUNET_SERVICE_Client *client,
const struct ChangePreferenceMessage *msg);
/**
* Initialize preferences subsystem.
*/
void
GAS_preference_init (void);
/**
* Shutdown preferences subsystem.
*/
void
GAS_preference_done (void);
/**
* Get the normalized preference values for a specific peer.
*
* @param cls ignored
* @param id the peer
* @return pointer to the values, can be indexed
* with `enum GNUNET_ATS_PreferenceKind`, never NULL
*/
const double *
GAS_preference_get_by_peer (void *cls,
const struct GNUNET_PeerIdentity *id);
/**
* A performance client disconnected
*
* @param client the disconnecting client
*/
void
GAS_preference_client_disconnect (struct GNUNET_SERVICE_Client *client);
#endif
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