/*
This file is part of GNUnet
- (C) 2009, 2010 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2009-2015 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
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.
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
/**
- * @file include/gnunet_ats_plugin.h
- * @brief API for the ATS solvers. This header
- * specifies the struct that is given to the plugin's entry
- * method and the other struct that must be returned.
- * Note that the destructors of ATS plugins will
- * be given the value returned by the constructor
- * and is expected to return a NULL pointer.
* @author Christian Grothoff
+ *
+ * @file
+ * API for the ATS solvers.
+ *
+ * @defgroup ats-plugin ATS service plugin API
+ * Plugin API for the ATS service.
+ *
+ * Specifies the struct that is given to the plugin's entry method and the other
+ * struct that must be returned. Note that the destructors of ATS plugins will
+ * be given the value returned by the constructor and is expected to return a
+ * NULL pointer.
+ *
+ * @{
*/
#ifndef PLUGIN_ATS_H
#define PLUGIN_ATS_H
#include "gnunet_ats_service.h"
#include "gnunet_statistics_service.h"
-struct ATS_Address;
-
-/*
- * Solver API
- * ----------
+/**
+ * Representation of an address the plugin can choose from.
*/
+struct ATS_Address;
/**
* Change the preference for a peer
*/
typedef void
(*GAS_solver_address_change_preference) (void *solver,
- const struct GNUNET_PeerIdentity *peer, enum GNUNET_ATS_PreferenceKind kind,
- double pref_rel);
+ const struct GNUNET_PeerIdentity *peer,
+ enum GNUNET_ATS_PreferenceKind kind,
+ double pref_rel);
+
/**
* Give feedback about the current assignment
* @param score the feedback score
*/
typedef void
-(*GAS_solver_address_feedback_preference) (void *solver, void *application,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_TIME_Relative scope,
- enum GNUNET_ATS_PreferenceKind kind, double score);
+(*GAS_solver_address_feedback_preference) (void *solver,
+ struct GNUNET_SERVICE_Client *application,
+ const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_TIME_Relative scope,
+ enum GNUNET_ATS_PreferenceKind kind,
+ double score);
/**
* Notify the solver about a bulk operation changing possibly a lot of values
typedef void
(*GAS_solver_bulk_start) (void *solver);
+
/**
* Mark a bulk operation as done
* Solver will resolve if values have changed
typedef void
(*GAS_solver_bulk_stop) (void *solver);
+
/**
* Add a single address within a network to the solver
*
* @param solver the solver Handle
- * @param addresses the address hashmap containing all addresses
* @param address the address to add
* @param network network type of this address
*/
typedef void
-(*GAS_solver_address_add) (void *solver, struct ATS_Address *address,
- uint32_t network);
+(*GAS_solver_address_add) (void *solver,
+ struct ATS_Address *address,
+ uint32_t network);
+
/**
* Delete an address or just the session from the solver
*
* @param solver the solver Handle
- * @param addresses the address hashmap containing all addresses
* @param address the address to delete
- * @param session_only remove address or just session
*/
typedef void
-(*GAS_solver_address_delete) (void *solver, struct ATS_Address *address,
- int session_only);
+(*GAS_solver_address_delete) (void *solver,
+ struct ATS_Address *address);
+
/**
* Transport properties for this address have changed
*
* @param solver solver handle
* @param address the address
- * @param type the ATSI type in HBO
- * @param abs_value the absolute value of the property
- * @param rel_value the normalized value
*/
typedef void
(*GAS_solver_address_property_changed) (void *solver,
- struct ATS_Address *address, uint32_t type, uint32_t abs_value,
- double rel_value);
+ struct ATS_Address *address);
/**
* Get the prefered address for a peer from solver
*
* @param solver the solver to use
- * @param addresses the address hashmap containing all addresses
* @param peer the peer
*/
-typedef const struct ATS_Address *
+typedef void
(*GAS_solver_get_preferred_address) (void *solver,
- const struct GNUNET_PeerIdentity *peer);
+ const struct GNUNET_PeerIdentity *peer);
+
/**
* Stop getting the prefered address for a peer from solver
*
* @param solver the solver to use
- * @param addresses the address hashmap containing all addresses
* @param peer the peer
*/
typedef void
(*GAS_solver_stop_get_preferred_address) (void *solver,
- const struct GNUNET_PeerIdentity *peer);
+ const struct GNUNET_PeerIdentity *peer);
+
/**
- * Solver functions
+ * Solver functions.
*
- * Each solver is required to set up this struct contained in the plugin
- * environment struct in during startup
+ * Each solver is required to set up and return an instance
+ * of this struct during initialization.
*/
struct GNUNET_ATS_SolverFunctions
{
+ /**
+ * Closure to pass to all solver functions in this struct.
+ */
+ void *cls;
+
/**
* Add a new address for a peer to the solver
*
GAS_solver_bulk_stop s_bulk_stop;
};
+
/**
* Operation codes for solver information callback
*
* Order of calls is expected to be:
- * GAS_OP_SOLVE_START
- *
- * GAS_OP_SOLVE_STOP
- * GAS_OP_SOLVE_UPDATE_NOTIFICATION_START
- * GAS_OP_SOLVE_UPDATE_NOTIFICATION_STOP
+ * #GAS_OP_SOLVE_START
+ * #GAS_OP_SOLVE_STOP
+ * #GAS_OP_SOLVE_UPDATE_NOTIFICATION_START
+ * #GAS_OP_SOLVE_UPDATE_NOTIFICATION_STOP
*
*/
enum GAS_Solver_Operation
GAS_OP_SOLVE_UPDATE_NOTIFICATION_STOP
};
+
/**
* Status of a GAS_Solver_Operation operation
*/
GAS_STAT_FAIL
};
+
/**
* Status of the operation
*/
GAS_INFO_PROP_ALL
};
+
/**
* Callback to call with additional information
* Used for measurement
*
* @param cls the closure
* @param op the operation
- * @param peer the peer id
- * @param kind the preference kind to change
- * @param score the new preference score
- * @param pref_rel the normalized preference value for this kind over all clients
*/
typedef void
-(*GAS_solver_information_callback) (void *cls, enum GAS_Solver_Operation op,
- enum GAS_Solver_Status stat, enum GAS_Solver_Additional_Information);
+(*GAS_solver_information_callback) (void *cls,
+ enum GAS_Solver_Operation op,
+ enum GAS_Solver_Status stat,
+ enum GAS_Solver_Additional_Information);
+
/**
* Callback to call from solver when bandwidth for address has changed
* @param address the with changed bandwidth assigned
*/
typedef void
-(*GAS_bandwidth_changed_cb) (void *cls, struct ATS_Address *address);
+(*GAS_bandwidth_changed_cb) (void *cls,
+ struct ATS_Address *address);
+
/**
- * Callback to call from solver to obtain application preference values for a
- * peer
+ * Callback to call from solver to obtain application preference
+ * values for a peer.
*
* @param cls the cls
* @param id the peer id
* GNUNET_ATS_PreferenceCount elements
*/
typedef const double *
-(*GAS_get_preferences) (void *cls, const struct GNUNET_PeerIdentity *id);
+(*GAS_get_preferences) (void *cls,
+ const struct GNUNET_PeerIdentity *id);
+
/**
- * Callback to call from solver to obtain transport properties for an
- * address
+ * Callback to call from solver to obtain application connectivity
+ * preferences for a peer.
*
* @param cls the cls
- * @param address the address
- * @return carry of double values containing the preferences with
- * GNUNET_ATS_PreferenceCount elements
+ * @param id the peer id
+ * @return 0 if connectivity is not desired, non-null if address
+ * suggestions are requested
*/
-typedef const double *
-(*GAS_get_properties) (void *cls, const struct ATS_Address *address);
+typedef unsigned int
+(*GAS_get_connectivity) (void *cls,
+ const struct GNUNET_PeerIdentity *id);
+
/**
- * The ATS service will pass a pointer to a struct
- * of this type as the first and only argument to the
- * entry point of each ATS solver.
+ * The ATS plugin will pass a pointer to a struct
+ * of this type as to the initialization function
+ * of the ATS plugins.
*/
struct GNUNET_ATS_PluginEnvironment
{
/**
* Statistics handle to be used by the solver
*/
- const struct GNUNET_STATISTICS_Handle *stats;
+ struct GNUNET_STATISTICS_Handle *stats;
+
+ /**
+ * Closure to pass to all callbacks in this struct.
+ */
+ void *cls;
/**
* Hashmap containing all addresses available
*/
GAS_bandwidth_changed_cb bandwidth_changed_cb;
- /**
- * ATS addresses closure to be notified about bandwidth assignment changes
- */
- void *bw_changed_cb_cls;
-
/**
* ATS addresses function to obtain preference values
*/
GAS_get_preferences get_preferences;
/**
- * ATS addresses function closure to obtain preference values
- */
- void *get_preference_cls;
-
- /**
- * ATS addresses function to obtain property values
- */
- GAS_get_properties get_property;
-
- /**
- * ATS addresses function closure to obtain property values
+ * ATS addresses function to obtain preference values
*/
- void *get_property_cls;
+ GAS_get_connectivity get_connectivity;
/**
* Callback for solver to call with status information,
GAS_solver_information_callback info_cb;
/**
- * Closure for information callback,
- * can be NULL
- */
- void *info_cb_cls;
-
- /**
- * The ATS solver plugin functions to call
+ * Number of networks available, size of the @e out_quota
+ * and @e in_quota arrays.
*/
- struct GNUNET_ATS_SolverFunctions sf;
-
- /**
- * Available networks
- */
- int networks[GNUNET_ATS_NetworkTypeCount];
-
- /**
- * Number of networks available
- */
- int network_count;
+ unsigned int network_count;
/**
* Array of configured outbound quotas
};
#endif
+
+/** @} */ /* end of group */