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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
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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
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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)
32 #ifndef GNUNET_TRANSPORT_MONITOR_SERVICE_H
33 #define GNUNET_TRANSPORT_MONITOR_SERVICE_H
38 #if 0 /* keep Emacsens' auto-indent happy */
43 #include "gnunet_util_lib.h"
44 #include "gnunet_ats_service.h"
45 #include "gnunet_transport_communication_service.h"
49 * Version number of the transport API.
51 #define GNUNET_TRANSPORT_MONITOR_VERSION 0x00000000
55 * Information about another peer's address.
57 struct GNUNET_TRANSPORT_MonitorInformation
61 * Address we have for the peer, human-readable, 0-terminated, in UTF-8.
66 * Network type of the address.
68 enum GNUNET_ATS_Network_Type nt;
73 enum GNUNET_TRANSPORT_ConnectionStatus cs;
76 * Number of messages pending transmission for this @e address.
78 uint32_t num_msg_pending;
81 * Number of bytes pending transmission for this @e address.
83 uint32_t num_bytes_pending;
86 * When was this address last validated.
88 struct GNUNET_TIME_Absolute last_validation;
91 * When does this address expire.
93 struct GNUNET_TIME_Absolute valid_until;
96 * Time of the next validation operation.
98 struct GNUNET_TIME_Absolute next_validation;
101 * Current estimate of the RTT.
103 struct GNUNET_TIME_Relative rtt;
109 * Function to call with information about a peer.
111 * If one_shot was set to #GNUNET_YES to iterate over all peers once,
112 * a final call with NULL for peer and address will follow when done.
113 * In this case state and timeout do not contain valid values.
115 * The #GNUNET_TRANSPORT_monitor_peers_cancel() call MUST not be called from
116 * within this function!
120 * @param peer peer this update is about,
121 * NULL if this is the final last callback for a iteration operation
122 * @param mi monitoring data on the peer
125 (*GNUNET_TRANSPORT_MonitorCallback) (void *cls,
126 const struct GNUNET_PeerIdentity *peer,
127 const struct GNUNET_TRANSPORT_MonitorInformation *mi);
131 * Handle for a #GNUNET_TRANSPORT_monitor() operation.
133 struct GNUNET_TRANSPORT_MonitorContext;
137 * Return information about a specific peer or all peers currently known to
138 * transport service once or in monitoring mode. To obtain information about
139 * a specific peer, a peer identity can be passed. To obtain information about
140 * all peers currently known to transport service, NULL can be passed as peer
143 * For each peer, the callback is called with information about the address used
144 * to communicate with this peer, the state this peer is currently in and the
145 * the current timeout for this state.
147 * Upon completion, the #GNUNET_TRANSPORT_PeerIterateCallback is called one
148 * more time with `NULL`. After this, the operation must no longer be
149 * explicitly canceled.
151 * The #GNUNET_TRANSPORT_monitor_peers_cancel call MUST not be called in the
154 * @param cfg configuration to use
155 * @param peer a specific peer identity to obtain information for,
157 * @param one_shot #GNUNET_YES to return the current state and then end (with NULL+NULL),
158 * #GNUNET_NO to monitor peers continuously
159 * @param cb function to call with the results
160 * @param cb_cls closure for @a mc
162 struct GNUNET_TRANSPORT_MonitorContext *
163 GNUNET_TRANSPORT_monitor (const struct GNUNET_CONFIGURATION_Handle *cfg,
164 const struct GNUNET_PeerIdentity *peer,
166 GNUNET_TRANSPORT_MonitorCallback cb,
171 * Cancel request to monitor peers
173 * @param mc handle for the request to cancel
176 GNUNET_TRANSPORT_monitor_cancel (struct GNUNET_TRANSPORT_MonitorContext *mc);
179 #if 0 /* keep Emacsens' auto-indent happy */
186 /* ifndef GNUNET_TRANSPORT_MONITOR_SERVICE_H */
189 /** @} */ /* end of group */
191 /* end of gnunet_transport_monitor_service.h */