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3 (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
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22 * @file core/gnunet-service-core_clients.h
23 * @brief code for managing interactions with clients of core service
24 * @author Christian Grothoff
26 #ifndef GNUNET_SERVICE_CORE_CLIENTS_H
27 #define GNUNET_SERVICE_CORE_CLIENTS_H
29 #include "gnunet_util_lib.h"
30 #include "gnunet_service_core.h"
34 * Send a message to one of our clients.
36 * @param client target for the message
37 * @param msg message to transmit
38 * @param can_drop could this message be dropped if the
39 * client's queue is getting too large?
42 GSC_CLIENTS_send_to_client (struct GNUNET_SERVER_Client *client,
43 const struct GNUNET_MessageHeader *msg,
48 * Notify a particular client about a change to existing connection to
49 * one of our neighbours (check if the client is interested). Called
50 * from 'GSC_SESSIONS_notify_client_about_sessions'.
52 * @param client client to notify
53 * @param neighbour identity of the neighbour that changed status
54 * @param atsi performance information about neighbour
55 * @param atsi_count number of entries in 'ats' array
56 * @param tmap_old previous type map for the neighbour, NULL for disconnect
57 * @param tmap_new updated type map for the neighbour, NULL for disconnect
60 GDS_CLIENTS_notify_client_about_neighbour (struct GSC_Client *client,
61 const struct GNUNET_PeerIdentity *neighbour,
62 const struct GNUNET_TRANSPORT_ATS_Information *atsi,
63 unsigned int atsi_count,
64 const struct GSC_TypeMap *tmap_old,
65 const struct GSC_TypeMap *tmap_new);
69 * Notify all clients about a change to existing session.
70 * Called from SESSIONS whenever there is a change in sessions
71 * or types processed by the respective peer.
73 * @param neighbour identity of the neighbour that changed status
74 * @param atsi performance information about neighbour
75 * @param atsi_count number of entries in 'ats' array
76 * @param tmap_old previous type map for the neighbour, NULL for disconnect
77 * @param tmap_new updated type map for the neighbour, NULL for disconnect
80 GDS_CLIENTS_notify_clients_about_neighbour (const struct GNUNET_PeerIdentity *neighbour,
81 const struct GNUNET_TRANSPORT_ATS_Information *atsi,
82 unsigned int atsi_count,
83 const struct GSC_TypeMap *tmap_old,
84 const struct GSC_TypeMap *tmap_new);
88 * Deliver P2P message to interested clients. Caller must have checked
89 * that the sending peer actually lists the given message type as one
92 * @param sender peer who sent us the message
93 * @param atsi performance information about neighbour
94 * @param atsi_count number of entries in 'ats' array
95 * @param msg the message
96 * @param msize number of bytes to transmit
97 * @param options options for checking which clients should
101 GSC_CLIENTS_deliver_message (const struct GNUNET_PeerIdentity *sender,
102 const struct GNUNET_TRANSPORT_ATS_Information *atsi,
103 unsigned int atsi_count,
104 const struct GNUNET_MessageHeader *msg,
110 * Tell a client that we are ready to receive the message.
112 * @param car request that is now ready; the responsibility
113 * for the handle remains shared between CLIENTS
114 * and SESSIONS after this call.
117 GSC_CLIENTS_solicit_request (struct GSC_ClientActiveRequest *car);
121 * Tell a client that we will never be ready to receive the
122 * given message in time (disconnect or timeout).
124 * @param car request that now permanently failed; the
125 * responsibility for the handle is now returned
126 * to CLIENTS (SESSIONS is done with it).
129 GSC_CLIENTS_reject_request (struct GSC_ClientActiveRequest *car);
133 * Initialize clients subsystem.
135 * @param server handle to server clients connect to
138 GSC_CLIENTS_init (struct GNUNET_SERVER_Handle *server);
142 * Shutdown clients subsystem.
145 GSC_CLIENTS_done (void);
148 /* end of gnunet-service-core_clients.h */