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-rw-r--r--src/core/core_api_monitor_peers.c196
1 files changed, 0 insertions, 196 deletions
diff --git a/src/core/core_api_monitor_peers.c b/src/core/core_api_monitor_peers.c
deleted file mode 100644
index 3be8e3859..000000000
--- a/src/core/core_api_monitor_peers.c
+++ /dev/null
@@ -1,196 +0,0 @@
1/*
2 This file is part of GNUnet.
3 Copyright (C) 2009-2014, 2016 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your 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 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20
21/**
22 * @file core/core_api_monitor_peers.c
23 * @brief implementation of the peer_iterate function
24 * @author Christian Grothoff
25 * @author Nathan Evans
26 */
27#include "platform.h"
28#include "gnunet_core_service.h"
29#include "core.h"
30
31
32/**
33 * Handle to a CORE monitoring operation.
34 */
35struct GNUNET_CORE_MonitorHandle
36{
37 /**
38 * Our configuration.
39 */
40 const struct GNUNET_CONFIGURATION_Handle *cfg;
41
42 /**
43 * Our connection to the service.
44 */
45 struct GNUNET_MQ_Handle *mq;
46
47 /**
48 * Function called with the peer.
49 */
50 GNUNET_CORE_MonitorCallback peer_cb;
51
52 /**
53 * Closure for @e peer_cb.
54 */
55 void *peer_cb_cls;
56};
57
58
59/**
60 * Protocol error, reconnect to CORE service and notify
61 * client.
62 *
63 * @param mh monitoring session to reconnect to CORE
64 */
65static void
66reconnect (struct GNUNET_CORE_MonitorHandle *mh);
67
68
69/**
70 * Generic error handler, called with the appropriate error code and
71 * the same closure specified at the creation of the message queue.
72 * Not every message queue implementation supports an error handler.
73 *
74 * @param cls closure, a `struct GNUNET_CORE_MonitorHandle *`
75 * @param error error code
76 */
77static void
78handle_mq_error (void *cls, enum GNUNET_MQ_Error error)
79{
80 struct GNUNET_CORE_MonitorHandle *mh = cls;
81
82 (void) error;
83 reconnect (mh);
84}
85
86
87/**
88 * Receive reply from CORE service with information about a peer.
89 *
90 * @param cls our `struct GNUNET_CORE_MonitorHandle *`
91 * @param mon_message monitor message
92 */
93static void
94handle_receive_info (void *cls, const struct MonitorNotifyMessage *mon_message)
95{
96 struct GNUNET_CORE_MonitorHandle *mh = cls;
97
98 mh->peer_cb (mh->peer_cb_cls,
99 &mon_message->peer,
100 (enum GNUNET_CORE_KxState) ntohl (mon_message->state),
101 GNUNET_TIME_absolute_ntoh (mon_message->timeout));
102}
103
104
105/**
106 * Protocol error, reconnect to CORE service and notify
107 * client.
108 *
109 * @param mh monitoring session to reconnect to CORE
110 */
111static void
112reconnect (struct GNUNET_CORE_MonitorHandle *mh)
113{
114 struct GNUNET_MQ_MessageHandler handlers[] =
115 { GNUNET_MQ_hd_fixed_size (receive_info,
116 GNUNET_MESSAGE_TYPE_CORE_MONITOR_NOTIFY,
117 struct MonitorNotifyMessage,
118 mh),
119 GNUNET_MQ_handler_end () };
120 struct GNUNET_MQ_Envelope *env;
121 struct GNUNET_MessageHeader *msg;
122
123 if (NULL != mh->mq)
124 GNUNET_MQ_destroy (mh->mq);
125 /* FIXME: use backoff? */
126 mh->mq =
127 GNUNET_CLIENT_connect (mh->cfg, "core", handlers, &handle_mq_error, mh);
128 if (NULL == mh->mq)
129 return;
130 /* notify callback about reconnect */
131 if (NULL != mh->peer_cb)
132 mh->peer_cb (mh->peer_cb_cls,
133 NULL,
134 GNUNET_CORE_KX_CORE_DISCONNECT,
135 GNUNET_TIME_UNIT_FOREVER_ABS);
136 env = GNUNET_MQ_msg (msg, GNUNET_MESSAGE_TYPE_CORE_MONITOR_PEERS);
137 GNUNET_MQ_send (mh->mq, env);
138}
139
140
141/**
142 * Monitor connectivity and KX status of all peers known to CORE.
143 * Calls @a peer_cb with the current status for each connected peer,
144 * and then once with NULL to indicate that all peers that are
145 * currently active have been handled. After that, the iteration
146 * continues until it is cancelled. Normal users of the CORE API are
147 * not expected to use this function. It is different in that it
148 * truly lists all connections (including those where the KX is in
149 * progress), not just those relevant to the application. This
150 * function is used by special applications for diagnostics.
151 *
152 * @param cfg configuration handle
153 * @param peer_cb function to call with the peer information
154 * @param peer_cb_cls closure for @a peer_cb
155 * @return NULL on error
156 */
157struct GNUNET_CORE_MonitorHandle *
158GNUNET_CORE_monitor_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
159 GNUNET_CORE_MonitorCallback peer_cb,
160 void *peer_cb_cls)
161{
162 struct GNUNET_CORE_MonitorHandle *mh;
163
164 GNUNET_assert (NULL != peer_cb);
165 mh = GNUNET_new (struct GNUNET_CORE_MonitorHandle);
166 mh->cfg = cfg;
167 reconnect (mh);
168 mh->peer_cb = peer_cb;
169 mh->peer_cb_cls = peer_cb_cls;
170 if (NULL == mh->mq)
171 {
172 GNUNET_free (mh);
173 return NULL;
174 }
175 return mh;
176}
177
178
179/**
180 * Stop monitoring CORE activity.
181 *
182 * @param mh monitor to stop
183 */
184void
185GNUNET_CORE_monitor_stop (struct GNUNET_CORE_MonitorHandle *mh)
186{
187 if (NULL != mh->mq)
188 {
189 GNUNET_MQ_destroy (mh->mq);
190 mh->mq = NULL;
191 }
192 GNUNET_free (mh);
193}
194
195
196/* end of core_api_monitor_peers.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-21 00:53:39 +0000