2 This file is part of GNUnet
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20 * @author Julius Bünger
23 * API to the rps service
25 * @defgroup rps RPS service
26 * Random Peer Sampling
29 #ifndef GNUNET_RPS_SERVICE_H
30 #define GNUNET_RPS_SERVICE_H
35 #if 0 /* keep Emacsens' auto-indent happy */
41 * Version of the rps API.
43 #define GNUNET_RPS_VERSION 0x00000000
46 * Handle for the random peer sampling service
48 struct GNUNET_RPS_Handle;
51 * Handle for one request to the rps service
53 struct GNUNET_RPS_Request_Handle;
56 * Callback called when requested random peers are available.
58 * @param cls the closure given with the request
59 * @param num_peers the number of peers returned
60 * @param peers array with num_peers PeerIDs
62 typedef void (* GNUNET_RPS_NotifyReadyCB) (void *cls,
64 const struct GNUNET_PeerIdentity *peers);
67 * Callback called when view was updated
69 * @param num_peers the number of peers returned
70 * @param peers array with num_peers PeerIDs
72 typedef void (* GNUNET_RPS_ViewUpdateCB) (void *cls,
74 const struct GNUNET_PeerIdentity *peers);
77 * Connect to the rps service
79 * @param cfg configuration to use
80 * @return handle to the rps service
82 struct GNUNET_RPS_Handle *
83 GNUNET_RPS_connect (const struct GNUNET_CONFIGURATION_Handle *cfg);
86 * Request n random peers.
88 * This does exacly the same as GNUNET_RPS_request_peers_single_call
89 * but needs a GNUNET_RPS_Handle.
90 * This exists only for other parts of GNUnet that expect having to
91 * (dis)connect from/to a service.
93 * @param h handle to the rps service
94 * @param n number of random peers to return
95 * @param ready_cb the callback to be called when the peers are available
96 * @param cls a closure that will be given to the callback
97 * @return handle to this request
99 struct GNUNET_RPS_Request_Handle *
100 GNUNET_RPS_request_peers (struct GNUNET_RPS_Handle *h, uint32_t n,
101 GNUNET_RPS_NotifyReadyCB ready_cb,
105 * Seed rps service with peerIDs.
107 * @param h handle to the rps service
108 * @param n number of peers to seed
109 * @param ids the ids of the peers seeded
112 GNUNET_RPS_seed_ids (struct GNUNET_RPS_Handle *h, uint32_t n,
113 const struct GNUNET_PeerIdentity * ids);
116 * Cancle an issued request.
118 * @param rh handle of the pending request to be canceled
121 GNUNET_RPS_request_cancel (struct GNUNET_RPS_Request_Handle *rh);
124 #ifdef ENABLE_MALICIOUS
126 * Turn RPS service to act malicious.
128 * @param h handle to the rps service
129 * @param type which type of malicious peer to turn to.
130 * 0 Don't act malicious at all
131 * 1 Try to maximise representation
132 * 2 Try to partition the network
133 * (isolate one peer from the rest)
134 * @param n number of @a ids
135 * @param ids the ids of the malicious peers
136 * if @type is 2 the last id is the id of the
137 * peer to be isolated from the rest
140 GNUNET_RPS_act_malicious (struct GNUNET_RPS_Handle *h,
143 const struct GNUNET_PeerIdentity *ids,
144 const struct GNUNET_PeerIdentity *target_peer);
145 #endif /* ENABLE_MALICIOUS */
147 /* Get internals for debugging/profiling purposes */
150 * Request updates of view
152 * @param rps_handle handle to the rps service
153 * @param num_req_peers number of peers we want to receive
154 * (0 for infinite updates)
155 * @param cls a closure that will be given to the callback
156 * @param ready_cb the callback called when the peers are available
159 GNUNET_RPS_view_request (struct GNUNET_RPS_Handle *rps_handle,
160 uint32_t num_updates,
161 GNUNET_RPS_ViewUpdateCB view_update_cb,
165 * Disconnect from the rps service
167 * @param h the handle to the rps service
170 GNUNET_RPS_disconnect (struct GNUNET_RPS_Handle *h);
173 #if 0 /* keep Emacsens' auto-indent happy */
182 /** @} */ /* end of group */