2 This file is part of GNUnet.
3 Copyright (C) 2011-2015 Christian Grothoff (and other contributing authors)
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.
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.
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., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file ats/gnunet-service-ats_performance.c
22 * @brief ats service, interaction with 'performance' API
23 * @author Matthias Wachs
24 * @author Christian Grothoff
27 #include "gnunet-service-ats.h"
28 #include "gnunet-service-ats_addresses.h"
29 #include "gnunet-service-ats_performance.h"
34 * Context for sending messages to performance clients without PIC.
36 static struct GNUNET_SERVER_NotificationContext *nc_no_pic;
39 * Context for sending messages to performance clients with PIC.
41 static struct GNUNET_SERVER_NotificationContext *nc_pic;
45 * Transmit the given performance information to all performance
48 * @param pc client to send to, NULL for all
49 * @param peer peer for which this is an address suggestion
50 * @param plugin_name 0-termintated string specifying the transport plugin
51 * @param plugin_addr binary address for the plugin to use
52 * @param plugin_addr_len number of bytes in plugin_addr
53 * @param active #GNUNET_YES if this address is actively used
54 * to maintain a connection to a peer;
55 * #GNUNET_NO if the address is not actively used;
56 * #GNUNET_SYSERR if this address is no longer available for ATS
57 * @param prop performance data for the address
58 * @param bandwidth_out assigned outbound bandwidth
59 * @param bandwidth_in assigned inbound bandwidth
62 notify_client (struct GNUNET_SERVER_Client *client,
63 const struct GNUNET_PeerIdentity *peer,
64 const char *plugin_name,
65 const void *plugin_addr,
66 size_t plugin_addr_len,
68 const struct GNUNET_ATS_Properties *prop,
69 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
70 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
72 struct PeerInformationMessage *msg;
73 size_t plugin_name_length = strlen (plugin_name) + 1;
75 sizeof (struct PeerInformationMessage) +
78 char buf[msize] GNUNET_ALIGN;
79 struct GNUNET_SERVER_NotificationContext **uc;
80 struct GNUNET_SERVER_NotificationContext *nc;
83 GNUNET_assert (msize < GNUNET_SERVER_MAX_MESSAGE_SIZE);
84 msg = (struct PeerInformationMessage *) buf;
85 msg->header.size = htons (msize);
86 msg->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_PEER_INFORMATION);
89 msg->address_length = htons (plugin_addr_len);
90 msg->address_active = ntohl ((uint32_t) active);
91 msg->plugin_name_length = htons (plugin_name_length);
92 msg->bandwidth_out = bandwidth_out;
93 msg->bandwidth_in = bandwidth_in;
95 GNUNET_ATS_properties_hton (&msg->properties,
98 memset (&msg->properties,
100 sizeof (struct GNUNET_ATS_Properties));
101 addrp = (char *) &msg[1];
102 memcpy (addrp, plugin_addr, plugin_addr_len);
103 strcpy (&addrp[plugin_addr_len], plugin_name);
106 GNUNET_SERVER_notification_context_broadcast (nc_pic,
112 uc = GNUNET_SERVER_client_get_user_context (client,
113 struct GNUNET_SERVER_NotificationContext *);
120 GNUNET_SERVER_notification_context_unicast (nc,
129 * Transmit the given performance information to all performance
132 * @param peer peer for which this is an address suggestion
133 * @param plugin_name 0-termintated string specifying the transport plugin
134 * @param plugin_addr binary address for the plugin to use
135 * @param plugin_addr_len number of bytes in @a plugin_addr
136 * @param active #GNUNET_YES if this address is actively used
137 * to maintain a connection to a peer;
138 * #GNUNET_NO if the address is not actively used;
139 * #GNUNET_SYSERR if this address is no longer available for ATS
140 * @param prop performance data for the address
141 * @param bandwidth_out assigned outbound bandwidth
142 * @param bandwidth_in assigned inbound bandwidth
145 GAS_performance_notify_all_clients (const struct GNUNET_PeerIdentity *peer,
146 const char *plugin_name,
147 const void *plugin_addr,
148 size_t plugin_addr_len,
150 const struct GNUNET_ATS_Properties *prop,
151 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
152 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
163 GNUNET_STATISTICS_update (GSA_stats,
164 "# performance updates given to clients",
171 * Iterator for called from #GAS_addresses_get_peer_info()
173 * @param cls closure with the `struct GNUNET_SERVER_Client *` to inform.
174 * @param id the peer id
175 * @param plugin_name plugin name
176 * @param plugin_addr address
177 * @param plugin_addr_len length of @a plugin_addr
178 * @param active is address actively used
179 * @param prop performance information
180 * @param bandwidth_out current outbound bandwidth assigned to address
181 * @param bandwidth_in current inbound bandwidth assigned to address
184 peerinfo_it (void *cls,
185 const struct GNUNET_PeerIdentity *id,
186 const char *plugin_name,
187 const void *plugin_addr,
188 size_t plugin_addr_len,
190 const struct GNUNET_ATS_Properties *prop,
191 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
192 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
194 struct GNUNET_SERVER_Client *client = cls;
198 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
199 "Callback for peer `%s' plugin `%s' BW out %u, BW in %u \n",
202 (unsigned int) ntohl (bandwidth_out.value__),
203 (unsigned int) ntohl (bandwidth_in.value__));
204 notify_client (client,
217 * Register a new performance client.
219 * @param client handle of the new client
220 * @param flag flag specifying the type of the client
223 GAS_performance_add_client (struct GNUNET_SERVER_Client *client,
226 if (START_FLAG_PERFORMANCE_WITH_PIC == flag)
228 GNUNET_SERVER_notification_context_add (nc_pic,
230 GNUNET_SERVER_client_set_user_context (client,
232 GAS_addresses_get_peer_info (NULL,
238 GNUNET_SERVER_notification_context_add (nc_no_pic,
240 GNUNET_SERVER_client_set_user_context (client,
247 * Initialize performance subsystem.
249 * @param server handle to our server
252 GAS_performance_init (struct GNUNET_SERVER_Handle *server)
254 nc_no_pic = GNUNET_SERVER_notification_context_create (server, 32);
255 nc_pic = GNUNET_SERVER_notification_context_create (server, 32);
260 * Shutdown performance subsystem.
263 GAS_performance_done ()
265 GNUNET_SERVER_notification_context_destroy (nc_no_pic);
267 GNUNET_SERVER_notification_context_destroy (nc_pic);
271 /* end of gnunet-service-ats_performance.c */