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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 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_plugins.h
* @brief ats service plugin management
* @author Matthias Wachs
* @author Christian Grothoff
*/
#ifndef GNUNET_SERVICE_ATS_PLUGINS_H
#define GNUNET_SERVICE_ATS_PLUGINS_H
#include "gnunet-service-ats_addresses.h"
/**
* Initialize address subsystem. The addresses subsystem manages the addresses
* known and current performance information. It has a solver component
* responsible for the resource allocation. It tells the solver about changes
* and receives updates when the solver changes the ressource allocation.
*
* @param cfg configuration to use
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error (failed to load
* solver plugin)
*/
int
GAS_plugin_init (const struct GNUNET_CONFIGURATION_Handle *cfg);
/**
* Shutdown address subsystem.
*/
void
GAS_plugin_done (void);
/**
* The preference changed for a peer, update solver.
*
* @param peer the peer
* @param kind the ATS kind
* @param pref_rel the new relative preference value
*/
void
GAS_plugin_notify_preference_changed (const struct GNUNET_PeerIdentity *peer,
enum GNUNET_ATS_PreferenceKind kind,
double pref_rel);
/**
* The relative value for a property changed.
*
* @param address the peer
*/
void
GAS_plugin_notify_property_changed (struct ATS_Address *address);
/**
* Tell the solver that the given address can now be used
* for talking to the respective peer.
*
* @param new_address the new address
* @param addr_net network scope the address is in
*/
void
GAS_plugin_new_address (struct ATS_Address *new_address);
/**
* Tell the solver that the given address is no longer valid
* can cannot be used any longer.
*
* @param address address that was deleted
*/
void
GAS_plugin_delete_address (struct ATS_Address *address);
/**
* Tell the solver that the given client has expressed its
* appreciation for the past performance of a given connection.
*
* @param application client providing the feedback
* @param peer peer the feedback is about
* @param scope timeframe the feedback applies to
* @param kind performance property the feedback relates to
* @param score_abs degree of the appreciation
*/
void
GAS_plugin_notify_feedback (struct GNUNET_SERVICE_Client *application,
const struct GNUNET_PeerIdentity *peer,
const struct GNUNET_TIME_Relative scope,
enum GNUNET_ATS_PreferenceKind kind,
float score_abs);
/**
* Stop instant solving, there are many state updates
* happening in bulk right now.
*/
void
GAS_plugin_solver_lock (void);
/**
* Resume instant solving, we are done with the bulk state updates.
*/
void
GAS_plugin_solver_unlock (void);
/**
* Notify the plugin that a request to connect to
* a particular peer was given to us.
*
* @param pid identity of peer we now care about
*/
void
GAS_plugin_request_connect_start (const struct GNUNET_PeerIdentity *pid);
/**
* Notify the plugin that a request to connect to
* a particular peer was dropped.
*
* @param pid identity of peer we care now less about
*/
void
GAS_plugin_request_connect_stop (const struct GNUNET_PeerIdentity *pid);
#endif
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