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
8 option) any later version.
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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.
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,
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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"
34 * Context for sending messages to performance clients without PIC.
36 static struct GNUNET_SERVER_NotificationContext *nc;
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 atsi performance data for the address
58 * @param atsi_count number of performance records in @a atsi
59 * @param bandwidth_out assigned outbound bandwidth
60 * @param bandwidth_in assigned inbound bandwidth
63 notify_client (struct GNUNET_SERVER_Client *client,
64 const struct GNUNET_PeerIdentity *peer,
65 const char *plugin_name,
66 const void *plugin_addr,
67 size_t plugin_addr_len,
69 const struct GNUNET_ATS_Information *atsi,
71 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
72 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
74 struct PeerInformationMessage *msg;
75 size_t plugin_name_length = strlen (plugin_name) + 1;
77 sizeof (struct PeerInformationMessage) +
78 atsi_count * sizeof (struct GNUNET_ATS_Information) + plugin_addr_len +
80 char buf[msize] GNUNET_ALIGN;
81 struct GNUNET_ATS_Information *atsp;
84 GNUNET_assert (msize < GNUNET_SERVER_MAX_MESSAGE_SIZE);
85 GNUNET_assert (atsi_count <
86 GNUNET_SERVER_MAX_MESSAGE_SIZE /
87 sizeof (struct GNUNET_ATS_Information));
88 msg = (struct PeerInformationMessage *) buf;
89 msg->header.size = htons (msize);
90 msg->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_PEER_INFORMATION);
92 msg->ats_count = htonl (atsi_count);
94 msg->address_length = htons (plugin_addr_len);
95 msg->address_active = ntohl ((uint32_t) active);
96 msg->plugin_name_length = htons (plugin_name_length);
97 msg->bandwidth_out = bandwidth_out;
98 msg->bandwidth_in = bandwidth_in;
99 atsp = (struct GNUNET_ATS_Information *) &msg[1];
100 memcpy (atsp, atsi, sizeof (struct GNUNET_ATS_Information) * atsi_count);
101 addrp = (char *) &atsp[atsi_count];
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 GNUNET_SERVER_notification_context_unicast (nc,
121 * Transmit the given performance information to all performance
124 * @param peer peer for which this is an address suggestion
125 * @param plugin_name 0-termintated string specifying the transport plugin
126 * @param plugin_addr binary address for the plugin to use
127 * @param plugin_addr_len number of bytes in @a plugin_addr
128 * @param active #GNUNET_YES if this address is actively used
129 * to maintain a connection to a peer;
130 * #GNUNET_NO if the address is not actively used;
131 * #GNUNET_SYSERR if this address is no longer available for ATS
132 * @param atsi performance data for the address
133 * @param atsi_count number of performance records in @a atsi
134 * @param bandwidth_out assigned outbound bandwidth
135 * @param bandwidth_in assigned inbound bandwidth
138 GAS_performance_notify_all_clients (const struct GNUNET_PeerIdentity *peer,
139 const char *plugin_name,
140 const void *plugin_addr,
141 size_t plugin_addr_len,
143 const struct GNUNET_ATS_Information *atsi,
145 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
146 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
157 GNUNET_STATISTICS_update (GSA_stats,
158 "# performance updates given to clients",
165 * Iterator for called from #GAS_addresses_get_peer_info()
167 * @param cls closure with the `struct GNUNET_SERVER_Client *` to inform.
168 * @param id the peer id
169 * @param plugin_name plugin name
170 * @param plugin_addr address
171 * @param plugin_addr_len length of @a plugin_addr
172 * @param active is address actively used
173 * @param atsi ats performance information
174 * @param atsi_count number of ats performance elements in @a atsi
175 * @param bandwidth_out current outbound bandwidth assigned to address
176 * @param bandwidth_in current inbound bandwidth assigned to address
179 peerinfo_it (void *cls,
180 const struct GNUNET_PeerIdentity *id,
181 const char *plugin_name,
182 const void *plugin_addr,
183 size_t plugin_addr_len,
185 const struct GNUNET_ATS_Information *atsi,
187 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
188 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
190 struct GNUNET_SERVER_Client *client = cls;
194 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
195 "Callback for peer `%s' plugin `%s' BW out %u, BW in %u \n",
198 (unsigned int) ntohl (bandwidth_out.value__),
199 (unsigned int) ntohl (bandwidth_in.value__));
200 notify_client (client,
213 * Register a new performance client.
215 * @param client handle of the new client
216 * @param flag flag specifying the type of the client
219 GAS_performance_add_client (struct GNUNET_SERVER_Client *client,
222 if (START_FLAG_PERFORMANCE_WITH_PIC == flag)
224 GNUNET_SERVER_notification_context_add (nc_pic,
226 GNUNET_SERVER_notification_context_add (nc,
230 GNUNET_SERVER_notification_context_add (nc,
232 GAS_addresses_get_peer_info (NULL,
239 * Initialize performance subsystem.
241 * @param server handle to our server
244 GAS_performance_init (struct GNUNET_SERVER_Handle *server)
246 nc = GNUNET_SERVER_notification_context_create (server, 32);
247 nc_pic = GNUNET_SERVER_notification_context_create (server, 32);
252 * Shutdown performance subsystem.
255 GAS_performance_done ()
257 GNUNET_SERVER_notification_context_destroy (nc);
259 GNUNET_SERVER_notification_context_destroy (nc_pic);
263 /* end of gnunet-service-ats_performance.c */