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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 * Callback called when a peer from the biased stream was received
79 * @param peer The received peer
81 typedef void (* GNUNET_RPS_StreamInputCB) (void *cls,
83 const struct GNUNET_PeerIdentity *peer);
86 * Connect to the rps service
88 * @param cfg configuration to use
89 * @return handle to the rps service
91 struct GNUNET_RPS_Handle *
92 GNUNET_RPS_connect (const struct GNUNET_CONFIGURATION_Handle *cfg);
95 * Request n random peers.
97 * This does exacly the same as GNUNET_RPS_request_peers_single_call
98 * but needs a GNUNET_RPS_Handle.
99 * This exists only for other parts of GNUnet that expect having to
100 * (dis)connect from/to a service.
102 * @param h handle to the rps service
103 * @param n number of random peers to return
104 * @param ready_cb the callback to be called when the peers are available
105 * @param cls a closure that will be given to the callback
106 * @return handle to this request
108 struct GNUNET_RPS_Request_Handle *
109 GNUNET_RPS_request_peers (struct GNUNET_RPS_Handle *h, uint32_t n,
110 GNUNET_RPS_NotifyReadyCB ready_cb,
114 * Seed rps service with peerIDs.
116 * @param h handle to the rps service
117 * @param n number of peers to seed
118 * @param ids the ids of the peers seeded
121 GNUNET_RPS_seed_ids (struct GNUNET_RPS_Handle *h, uint32_t n,
122 const struct GNUNET_PeerIdentity * ids);
125 * Cancle an issued request.
127 * @param rh handle of the pending request to be canceled
130 GNUNET_RPS_request_cancel (struct GNUNET_RPS_Request_Handle *rh);
133 #ifdef ENABLE_MALICIOUS
135 * Turn RPS service to act malicious.
137 * @param h handle to the rps service
138 * @param type which type of malicious peer to turn to.
139 * 0 Don't act malicious at all
140 * 1 Try to maximise representation
141 * 2 Try to partition the network
142 * (isolate one peer from the rest)
143 * @param n number of @a ids
144 * @param ids the ids of the malicious peers
145 * if @type is 2 the last id is the id of the
146 * peer to be isolated from the rest
149 GNUNET_RPS_act_malicious (struct GNUNET_RPS_Handle *h,
152 const struct GNUNET_PeerIdentity *ids,
153 const struct GNUNET_PeerIdentity *target_peer);
154 #endif /* ENABLE_MALICIOUS */
156 /* Get internals for debugging/profiling purposes */
159 * Request updates of view
161 * @param rps_handle handle to the rps service
162 * @param num_req_peers number of peers we want to receive
163 * (0 for infinite updates)
164 * @param cls a closure that will be given to the callback
165 * @param ready_cb the callback called when the peers are available
168 GNUNET_RPS_view_request (struct GNUNET_RPS_Handle *rps_handle,
169 uint32_t num_updates,
170 GNUNET_RPS_ViewUpdateCB view_update_cb,
175 * Request biased stream of peers that are being put into the sampler
177 * @param rps_handle handle to the rps service
178 * @param num_req_peers number of peers we want to receive
179 * (0 for infinite updates)
180 * @param cls a closure that will be given to the callback
181 * @param ready_cb the callback called when the peers are available
184 GNUNET_RPS_stream_request (struct GNUNET_RPS_Handle *rps_handle,
185 uint32_t num_updates,
186 GNUNET_RPS_StreamInputCB stream_input_cb,
191 * Disconnect from the rps service
193 * @param h the handle to the rps service
196 GNUNET_RPS_disconnect (struct GNUNET_RPS_Handle *h);
199 #if 0 /* keep Emacsens' auto-indent happy */
208 /** @} */ /* end of group */