2 This file is part of GNUnet.
3 (C) 2011-2015 Christian Grothoff (and other contributing authors)
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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
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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.
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16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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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"
30 #include "gnunet-service-ats_reservations.h"
35 * Context for sending messages to performance clients without PIC.
37 static struct GNUNET_SERVER_NotificationContext *nc;
40 * Context for sending messages to performance clients with PIC.
42 static struct GNUNET_SERVER_NotificationContext *nc_pic;
46 * Transmit the given performance information to all performance
49 * @param pc client to send to, NULL for all
50 * @param peer peer for which this is an address suggestion
51 * @param plugin_name 0-termintated string specifying the transport plugin
52 * @param plugin_addr binary address for the plugin to use
53 * @param plugin_addr_len number of bytes in plugin_addr
54 * @param active #GNUNET_YES if this address is actively used
55 * to maintain a connection to a peer;
56 * #GNUNET_NO if the address is not actively used;
57 * #GNUNET_SYSERR if this address is no longer available for ATS
58 * @param atsi performance data for the address
59 * @param atsi_count number of performance records in @a atsi
60 * @param bandwidth_out assigned outbound bandwidth
61 * @param bandwidth_in assigned inbound bandwidth
64 GAS_performance_notify_client (struct GNUNET_SERVER_Client *client,
65 const struct GNUNET_PeerIdentity *peer,
66 const char *plugin_name,
67 const void *plugin_addr,
68 size_t plugin_addr_len,
70 const struct GNUNET_ATS_Information *atsi,
72 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
73 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
75 struct PeerInformationMessage *msg;
76 size_t plugin_name_length = strlen (plugin_name) + 1;
78 sizeof (struct PeerInformationMessage) +
79 atsi_count * sizeof (struct GNUNET_ATS_Information) + plugin_addr_len +
81 char buf[msize] GNUNET_ALIGN;
82 struct GNUNET_ATS_Information *atsp;
85 GNUNET_assert (msize < GNUNET_SERVER_MAX_MESSAGE_SIZE);
86 GNUNET_assert (atsi_count <
87 GNUNET_SERVER_MAX_MESSAGE_SIZE /
88 sizeof (struct GNUNET_ATS_Information));
89 msg = (struct PeerInformationMessage *) buf;
90 msg->header.size = htons (msize);
91 msg->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_PEER_INFORMATION);
93 msg->ats_count = htonl (atsi_count);
95 msg->address_length = htons (plugin_addr_len);
96 msg->address_active = ntohl ((uint32_t) active);
97 msg->plugin_name_length = htons (plugin_name_length);
98 msg->bandwidth_out = bandwidth_out;
99 msg->bandwidth_in = bandwidth_in;
100 atsp = (struct GNUNET_ATS_Information *) &msg[1];
101 memcpy (atsp, atsi, sizeof (struct GNUNET_ATS_Information) * atsi_count);
102 addrp = (char *) &atsp[atsi_count];
103 memcpy (addrp, plugin_addr, plugin_addr_len);
104 strcpy (&addrp[plugin_addr_len], plugin_name);
107 GNUNET_SERVER_notification_context_broadcast (nc_pic,
113 GNUNET_SERVER_notification_context_unicast (nc,
122 * Transmit the given performance information to all performance
125 * @param peer peer for which this is an address suggestion
126 * @param plugin_name 0-termintated string specifying the transport plugin
127 * @param plugin_addr binary address for the plugin to use
128 * @param plugin_addr_len number of bytes in @a plugin_addr
129 * @param active #GNUNET_YES if this address is actively used
130 * to maintain a connection to a peer;
131 * #GNUNET_NO if the address is not actively used;
132 * #GNUNET_SYSERR if this address is no longer available for ATS
133 * @param atsi performance data for the address
134 * @param atsi_count number of performance records in @a atsi
135 * @param bandwidth_out assigned outbound bandwidth
136 * @param bandwidth_in assigned inbound bandwidth
139 GAS_performance_notify_all_clients (const struct GNUNET_PeerIdentity *peer,
140 const char *plugin_name,
141 const void *plugin_addr,
142 size_t plugin_addr_len,
144 const struct GNUNET_ATS_Information *atsi,
146 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
147 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
149 GAS_performance_notify_client (NULL,
158 GNUNET_STATISTICS_update (GSA_stats,
159 "# performance updates given to clients",
166 * Iterator for called from #GAS_addresses_get_peer_info()
168 * @param cls closure with the `struct GNUNET_SERVER_Client *` to inform.
169 * @param id the peer id
170 * @param plugin_name plugin name
171 * @param plugin_addr address
172 * @param plugin_addr_len length of @a plugin_addr
173 * @param active is address actively used
174 * @param atsi ats performance information
175 * @param atsi_count number of ats performance elements in @a atsi
176 * @param bandwidth_out current outbound bandwidth assigned to address
177 * @param bandwidth_in current inbound bandwidth assigned to address
180 peerinfo_it (void *cls,
181 const struct GNUNET_PeerIdentity *id,
182 const char *plugin_name,
183 const void *plugin_addr,
184 size_t plugin_addr_len,
186 const struct GNUNET_ATS_Information *atsi,
188 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
189 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
191 struct GNUNET_SERVER_Client *client = cls;
195 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
196 "Callback for peer `%s' plugin `%s' BW out %u, BW in %u \n",
199 (unsigned int) ntohl (bandwidth_out.value__),
200 (unsigned int) ntohl (bandwidth_in.value__));
201 GAS_performance_notify_client (client,
214 * Register a new performance client.
216 * @param client handle of the new client
217 * @param flag flag specifying the type of the client
220 GAS_performance_add_client (struct GNUNET_SERVER_Client *client,
223 if (START_FLAG_PERFORMANCE_WITH_PIC == flag)
225 GNUNET_SERVER_notification_context_add (nc_pic,
227 GNUNET_SERVER_notification_context_add (nc,
231 GNUNET_SERVER_notification_context_add (nc,
233 GAS_addresses_get_peer_info (NULL,
240 * Initialize performance subsystem.
242 * @param server handle to our server
245 GAS_performance_init (struct GNUNET_SERVER_Handle *server)
247 nc = GNUNET_SERVER_notification_context_create (server, 32);
248 nc_pic = GNUNET_SERVER_notification_context_create (server, 32);
253 * Shutdown performance subsystem.
256 GAS_performance_done ()
258 GNUNET_SERVER_notification_context_destroy (nc);
260 GNUNET_SERVER_notification_context_destroy (nc_pic);
264 /* end of gnunet-service-ats_performance.c */