/*
This file is part of GNUnet.
- Copyright (C) 2010-2015 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2010-2015 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_service.h
- * @brief automatic transport selection and outbound bandwidth determination
+ * @file
+ * Automatic transport selection and outbound bandwidth determination
+ *
* @author Christian Grothoff
* @author Matthias Wachs
+ *
+ * @defgroup ats ATS service
+ * Automatic Transport Selection and outbound bandwidth determination
+ *
+ * @see [Documentation](https://gnunet.org/ats-subsystem)
+ *
+ * @{
*/
#ifndef GNUNET_ATS_SERVICE_H
#define GNUNET_ATS_SERVICE_H
/**
* Bluetooth LAN
*/
- GNUNET_ATS_NET_BT = 5
+ GNUNET_ATS_NET_BT = 5,
/**
* Number of network types supported by ATS
struct GNUNET_ATS_Properties
{
+ /**
+ * Delay. Time between when the time packet is sent and the packet
+ * arrives. FOREVER if we did not measure yet.
+ */
+ struct GNUNET_TIME_Relative delay;
+
/**
* Actual traffic on this connection from this peer to the other peer.
* Includes transport overhead.
*/
uint32_t utilization_in;
- /**
- * Which network scope does the respective address belong to?
- * This property does not change.
- */
- enum GNUNET_ATS_Network_Type scope;
-
/**
* Distance on network layer (required for distance-vector routing)
* in hops. Zero for direct connections (i.e. plain TCP/UDP).
unsigned int distance;
/**
- * Delay. Time between when the time packet is sent and the packet
- * arrives. FOREVER if we did not measure yet.
+ * Which network scope does the respective address belong to?
+ * This property does not change.
*/
- struct GNUNET_TIME_Relative delay;
+ enum GNUNET_ATS_Network_Type scope;
};
*
* @param ch handle
* @param peer identity of the peer we need an address for
- * TODO: add argument to allow client to express 'strength's of request
+ * @param strength how urgent is the need for such a suggestion
* @return suggestion handle, NULL if request is already pending
- */
+ */
struct GNUNET_ATS_ConnectivitySuggestHandle *
GNUNET_ATS_connectivity_suggest (struct GNUNET_ATS_ConnectivityHandle *ch,
- const struct GNUNET_PeerIdentity *peer);
+ const struct GNUNET_PeerIdentity *peer,
+ uint32_t strength);
/**
/**
* Opaque session handle, defined by plugins. Contents not known to ATS.
- * FIXME: This violates our naming conventions.
*/
-struct Session;
+struct GNUNET_ATS_Session;
+
/**
* Signature of a function called by ATS with the current bandwidth
- * and address preferences as determined by ATS.
+ * and address preferences as determined by ATS. If our connection
+ * to ATS dies and thus all suggestions become invalid, this function
+ * is called ONCE with all arguments (except @a cls) being NULL/0.
*
* @param cls closure
* @param peer for which we suggest an address, NULL if ATS connection died
(*GNUNET_ATS_AddressSuggestionCallback) (void *cls,
const struct GNUNET_PeerIdentity *peer,
const struct GNUNET_HELLO_Address *address,
- struct Session *session,
+ struct GNUNET_ATS_Session *session,
struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in);
GNUNET_ATS_scheduling_done (struct GNUNET_ATS_SchedulingHandle *sh);
-/**
- * Test if a address and a session is known to ATS.
- *
- * @param sh the scheduling handle
- * @param address the address
- * @param session the session
- * @return #GNUNET_YES or #GNUNET_NO
- */
-int
-GNUNET_ATS_session_known (struct GNUNET_ATS_SchedulingHandle *sh,
- const struct GNUNET_HELLO_Address *address,
- struct Session *session);
-
-
/**
* Handle used within ATS to track an address.
*/
struct GNUNET_ATS_AddressRecord *
GNUNET_ATS_address_add (struct GNUNET_ATS_SchedulingHandle *sh,
const struct GNUNET_HELLO_Address *address,
- struct Session *session,
+ struct GNUNET_ATS_Session *session,
const struct GNUNET_ATS_Properties *prop);
*/
void
GNUNET_ATS_address_add_session (struct GNUNET_ATS_AddressRecord *ar,
- struct Session *session);
+ struct GNUNET_ATS_Session *session);
/**
- * A session was destroyed, disassociate it from the
- * given address record. If this was an incoming
- * addess, destroy the address as well.
+ * A @a session was destroyed, disassociate it from the given address
+ * record. If this was an incoming addess, destroys the address as
+ * well.
*
* @param ar address record to update information for
* @param session session handle
*/
int
GNUNET_ATS_address_del_session (struct GNUNET_ATS_AddressRecord *ar,
- struct Session *session);
+ struct GNUNET_ATS_Session *session);
/**
* Signature of a function that is called with QoS information about an address.
*
* @param cls closure
- * @param address the address, NULL if ATS service was disconnected
+ * @param address the address, NULL if ATS service was disconnected or
+ * when the iteration is completed in the case of
+ * #GNUNET_ATS_performance_list_addresses()
* @param address_active #GNUNET_YES if this address is actively used
* to maintain a connection to a peer;
* #GNUNET_NO if the address is not actively used;
void *addr_info_cb_cls);
-
/**
* Get information about addresses known to the ATS subsystem.
*
- * @param handle the performance handle to use
+ * @param ph the performance handle to use
* @param peer peer idm can be NULL for all peers
* @param all #GNUNET_YES to get information about all addresses or #GNUNET_NO to
* get only address currently used
* @param infocb callback to call with the addresses,
* will callback with address == NULL when done
* @param infocb_cls closure for @a infocb
- * @return ats performance context
+ * @return handle to abort the operation
*/
struct GNUNET_ATS_AddressListHandle *
-GNUNET_ATS_performance_list_addresses (struct GNUNET_ATS_PerformanceHandle *handle,
+GNUNET_ATS_performance_list_addresses (struct GNUNET_ATS_PerformanceHandle *ph,
const struct GNUNET_PeerIdentity *peer,
int all,
GNUNET_ATS_AddressInformationCallback infocb,
/**
* Cancel a pending address listing operation
*
- * @param handle the `struct GNUNET_ATS_AddressListHandle` handle to cancel
+ * @param alh the `struct GNUNET_ATS_AddressListHandle` handle to cancel
*/
void
-GNUNET_ATS_performance_list_addresses_cancel (struct GNUNET_ATS_AddressListHandle *handle);
+GNUNET_ATS_performance_list_addresses_cancel (struct GNUNET_ATS_AddressListHandle *alh);
/**
/**
* ATS preference types as array initializer
*/
-#define GNUNET_ATS_PreferenceType {GNUNET_ATS_PREFERENCE_END, GNUNET_ATS_PREFERENCE_BANDWIDTH, GNUNET_ATS_PREFERENCE_LATENCY}
+#define GNUNET_ATS_PreferenceType {GNUNET_ATS_PREFERENCE_BANDWIDTH, GNUNET_ATS_PREFERENCE_LATENCY, GNUNET_ATS_PREFERENCE_END}
/**
* ATS preference types as string array initializer
...);
#endif
+
+/** @} */ /* end of group */
+
/* end of file gnunet-service-transport_ats.h */