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3 Copyright (C) 2009-2016 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
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13 Affero General Public License for more details.
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * @author Christian Grothoff
23 * Monitoring / diagnostics API for the transport service
25 * @defgroup transport TRANSPORT service
26 * Communication with other peers
28 * @see [Documentation](https://gnunet.org/transport-service)
33 #ifndef GNUNET_TRANSPORT_MONITOR_SERVICE_H
34 #define GNUNET_TRANSPORT_MONITOR_SERVICE_H
39 #if 0 /* keep Emacsens' auto-indent happy */
44 #include "gnunet_util_lib.h"
47 * Version number of the transport API.
49 #define GNUNET_TRANSPORT_MONITOR_VERSION 0x00000000
53 * Information about another peer's address.
55 struct GNUNET_TRANSPORT_MonitorInformation
59 * Address we have for the peer, human-readable, 0-terminated, in UTF-8.
64 * Network type of the address.
66 enum GNUNET_ATS_Network_Type nt;
69 * #GNUNET_YES if this is an inbound connection (communicator initiated)
70 * #GNUNET_NO if this is an outbound connection (transport initiated)
75 * Number of messages pending transmission for this @e address.
77 uint32_t num_msg_pending;
80 * Number of bytes pending transmission for this @e address.
82 uint32_t num_bytes_pending;
85 * When was this address last validated.
87 struct GNUNET_TIME_Absolute last_validation;
90 * When does this address expire.
92 struct GNUNET_TIME_Absolute valid_until;
95 * Time of the next validation operation.
97 struct GNUNET_TIME_Absolute next_validation;
100 * Current estimate of the RTT.
102 struct GNUNET_TIME_Relative rtt;
108 * Function to call with information about a peer.
110 * If one_shot was set to #GNUNET_YES to iterate over all peers once,
111 * a final call with NULL for peer and address will follow when done.
112 * In this case state and timeout do not contain valid values.
114 * The #GNUNET_TRANSPORT_monitor_peers_cancel() call MUST not be called from
115 * within this function!
119 * @param peer peer this update is about,
120 * NULL if this is the final last callback for a iteration operation
121 * @param mi monitoring data on the peer
124 (*GNUNET_TRANSPORT_MontiorCallback) (void *cls,
125 const struct GNUNET_PeerIdentity *peer,
126 const struct GNUNET_TRANSPORT_MonitorInformation *mi);
130 * Handle for a #GNUNET_TRANSPORT_monitor() operation.
132 struct GNUNET_TRANSPORT_MonitorContext;
136 * Return information about a specific peer or all peers currently known to
137 * transport service once or in monitoring mode. To obtain information about
138 * a specific peer, a peer identity can be passed. To obtain information about
139 * all peers currently known to transport service, NULL can be passed as peer
142 * For each peer, the callback is called with information about the address used
143 * to communicate with this peer, the state this peer is currently in and the
144 * the current timeout for this state.
146 * Upon completion, the #GNUNET_TRANSPORT_PeerIterateCallback is called one
147 * more time with `NULL`. After this, the operation must no longer be
148 * explicitly canceled.
150 * The #GNUNET_TRANSPORT_monitor_peers_cancel call MUST not be called in the
153 * @param cfg configuration to use
154 * @param peer a specific peer identity to obtain information for,
156 * @param one_shot #GNUNET_YES to return the current state and then end (with NULL+NULL),
157 * #GNUNET_NO to monitor peers continuously
158 * @param mc function to call with the results
159 * @param mc_cls closure for @a mc
161 struct GNUNET_TRANSPORT_MonitorContext *
162 GNUNET_TRANSPORT_monitor (const struct GNUNET_CONFIGURATION_Handle *cfg,
163 const struct GNUNET_PeerIdentity *peer,
165 GNUNET_TRANSPORT_MonitorCallback mc,
170 * Cancel request to monitor peers
172 * @param pmc handle for the request to cancel
175 GNUNET_TRANSPORT_monitor_cancel (struct GNUNET_TRANSPORT_MonitorContext *pmc);
178 #if 0 /* keep Emacsens' auto-indent happy */
185 /* ifndef GNUNET_TRANSPORT_MONITOR_SERVICE_H */
188 /** @} */ /* end of group */
190 /* end of gnunet_transport_monitor_service.h */