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diff --git a/src/core/gnunet-service-core_clients.h b/src/core/gnunet-service-core_clients.h
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1/*
2 This file is part of GNUnet.
3 Copyright (C) 2009, 2010, 2011 GNUnet e.V.
4
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
19*/
20
21/**
22 * @file core/gnunet-service-core_clients.h
23 * @brief code for managing interactions with clients of core service
24 * @author Christian Grothoff
25 */
26#ifndef GNUNET_SERVICE_CORE_CLIENTS_H
27#define GNUNET_SERVICE_CORE_CLIENTS_H
28
29#include "gnunet_util_lib.h"
30#include "gnunet-service-core.h"
31#include "gnunet-service-core_typemap.h"
32
33
34/**
35 * Send a message to one of our clients.
36 *
37 * @param client target for the message
38 * @param msg message to transmit
39 * @param can_drop could this message be dropped if the
40 * client's queue is getting too large?
41 */
42void
43GSC_CLIENTS_send_to_client (struct GNUNET_SERVER_Client *client,
44 const struct GNUNET_MessageHeader *msg,
45 int can_drop);
46
47
48/**
49 * Notify a particular client about a change to existing connection to
50 * one of our neighbours (check if the client is interested). Called
51 * from 'GSC_SESSIONS_notify_client_about_sessions'.
52 *
53 * @param client client to notify
54 * @param neighbour identity of the neighbour that changed status
55 * @param tmap_old previous type map for the neighbour, NULL for disconnect
56 * @param tmap_new updated type map for the neighbour, NULL for disconnect
57 */
58void
59GSC_CLIENTS_notify_client_about_neighbour (struct GSC_Client *client,
60 const struct GNUNET_PeerIdentity *neighbour,
61 const struct GSC_TypeMap *tmap_old,
62 const struct GSC_TypeMap *tmap_new);
63
64
65/**
66 * Notify all clients about a change to existing session.
67 * Called from SESSIONS whenever there is a change in sessions
68 * or types processed by the respective peer.
69 *
70 * @param neighbour identity of the neighbour that changed status
71 * @param tmap_old previous type map for the neighbour, NULL for disconnect
72 * @param tmap_new updated type map for the neighbour, NULL for disconnect
73 */
74void
75GSC_CLIENTS_notify_clients_about_neighbour (const struct GNUNET_PeerIdentity *neighbour,
76 const struct GSC_TypeMap *tmap_old,
77 const struct GSC_TypeMap *tmap_new);
78
79
80/**
81 * Deliver P2P message to interested clients. Caller must have checked
82 * that the sending peer actually lists the given message type as one
83 * of its types.
84 *
85 * @param sender peer who sent us the message
86 * @param msg the message
87 * @param msize number of bytes to transmit
88 * @param options options for checking which clients should
89 * receive the message
90 */
91void
92GSC_CLIENTS_deliver_message (const struct GNUNET_PeerIdentity *sender,
93 const struct GNUNET_MessageHeader *msg,
94 uint16_t msize,
95 uint32_t options);
96
97
98/**
99 * Tell a client that we are ready to receive the message.
100 *
101 * @param car request that is now ready; the responsibility
102 * for the handle remains shared between CLIENTS
103 * and SESSIONS after this call.
104 */
105void
106GSC_CLIENTS_solicit_request (struct GSC_ClientActiveRequest *car);
107
108
109/**
110 * We will never be ready to transmit the given message in (disconnect
111 * or invalid request). Frees resources associated with @a car. We
112 * don't explicitly tell the client, he'll learn with the disconnect
113 * (or violated the protocol).
114 *
115 * @param car request that now permanently failed; the
116 * responsibility for the handle is now returned
117 * to CLIENTS (SESSIONS is done with it).
118 * @param drop_client #GNUNET_YES if the client violated the protocol
119 * and we should thus drop the connection
120 */
121void
122GSC_CLIENTS_reject_request (struct GSC_ClientActiveRequest *car,
123 int drop_client);
124
125
126/**
127 * Initialize clients subsystem.
128 *
129 * @param server handle to server clients connect to
130 */
131void
132GSC_CLIENTS_init (struct GNUNET_SERVER_Handle *server);
133
134
135/**
136 * Shutdown clients subsystem.
137 */
138void
139GSC_CLIENTS_done (void);
140
141#endif
142/* end of gnunet-service-core_clients.h */