2 This file is part of GNUnet.
3 (C) 2011 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.
22 * @file ats/gnunet-service-ats.c
24 * @author Matthias Wachs
25 * @author Christian Grothoff
28 #include "gnunet_util_lib.h"
29 #include "gnunet-service-ats.h"
30 #include "gnunet-service-ats_addresses.h"
31 #include "gnunet-service-ats_connectivity.h"
32 #include "gnunet-service-ats_performance.h"
33 #include "gnunet-service-ats_scheduling.h"
34 #include "gnunet-service-ats_reservations.h"
38 * Handle for statistics.
40 struct GNUNET_STATISTICS_Handle *GSA_stats;
43 * Handle to the ATS server.
45 static struct GNUNET_SERVER_Handle *GSA_server;
49 * We have received a `struct ClientStartMessage` from a client. Find
50 * out which type of client it is and notify the respective subsystem.
52 * @param cls closure, unused
53 * @param client handle to the client
54 * @param message the start message
57 handle_ats_start (void *cls,
58 struct GNUNET_SERVER_Client *client,
59 const struct GNUNET_MessageHeader *message)
61 const struct ClientStartMessage *msg =
62 (const struct ClientStartMessage *) message;
65 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
66 "Received `%s' message\n",
68 flag = ntohl (msg->start_flag);
71 case START_FLAG_SCHEDULING:
72 if (GNUNET_OK != GAS_scheduling_add_client (client))
74 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
78 case START_FLAG_PERFORMANCE_WITH_PIC:
79 GAS_performance_add_client (client, flag);
81 case START_FLAG_PERFORMANCE_NO_PIC:
82 GAS_performance_add_client (client, flag);
84 case START_FLAG_CONNECTION_SUGGESTION:
85 /* This client won't receive messages from us, no need to 'add' */
89 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
92 GNUNET_SERVER_receive_done (client, GNUNET_OK);
97 * A client disconnected from us. Tear down the local client
101 * @param client handle of the client
104 client_disconnect_handler (void *cls,
105 struct GNUNET_SERVER_Client *client)
109 GAS_scheduling_remove_client (client);
110 GAS_performance_remove_client (client);
115 * Task run during shutdown.
121 cleanup_task (void *cls,
122 const struct GNUNET_SCHEDULER_TaskContext *tc)
124 GAS_addresses_done ();
125 GAS_scheduling_done ();
126 GAS_performance_done ();
127 GAS_reservations_done ();
128 GNUNET_SERVER_disconnect_notify_cancel (GSA_server,
129 &client_disconnect_handler,
131 if (NULL != GSA_stats)
133 GNUNET_STATISTICS_destroy (GSA_stats, GNUNET_NO);
140 * Process template requests.
143 * @param server the initialized server
144 * @param cfg configuration to use
148 struct GNUNET_SERVER_Handle *server,
149 const struct GNUNET_CONFIGURATION_Handle *cfg)
151 static const struct GNUNET_SERVER_MessageHandler handlers[] = {
152 {&handle_ats_start, NULL,
153 GNUNET_MESSAGE_TYPE_ATS_START,
154 sizeof (struct ClientStartMessage)},
155 {&GAS_handle_request_address, NULL,
156 GNUNET_MESSAGE_TYPE_ATS_REQUEST_ADDRESS,
157 sizeof (struct RequestAddressMessage)},
158 {&GAS_handle_request_address_cancel, NULL,
159 GNUNET_MESSAGE_TYPE_ATS_REQUEST_ADDRESS_CANCEL,
160 sizeof (struct RequestAddressMessage)},
161 {&GAS_handle_request_address_list, NULL,
162 GNUNET_MESSAGE_TYPE_ATS_ADDRESSLIST_REQUEST,
163 sizeof (struct AddressListRequestMessage)},
164 {&GAS_handle_address_add, NULL,
165 GNUNET_MESSAGE_TYPE_ATS_ADDRESS_ADD, 0},
166 {&GAS_handle_address_update, NULL,
167 GNUNET_MESSAGE_TYPE_ATS_ADDRESS_UPDATE, 0},
168 {&GAS_handle_address_destroyed, NULL,
169 GNUNET_MESSAGE_TYPE_ATS_ADDRESS_DESTROYED,
170 sizeof (struct AddressDestroyedMessage) },
171 {&GAS_handle_reservation_request, NULL,
172 GNUNET_MESSAGE_TYPE_ATS_RESERVATION_REQUEST,
173 sizeof (struct ReservationRequestMessage)},
174 {&GAS_handle_preference_change, NULL,
175 GNUNET_MESSAGE_TYPE_ATS_PREFERENCE_CHANGE, 0},
176 {&GAS_handle_preference_feedback, NULL,
177 GNUNET_MESSAGE_TYPE_ATS_PREFERENCE_FEEDBACK, 0},
181 GSA_stats = GNUNET_STATISTICS_create ("ats", cfg);
182 GAS_reservations_init ();
184 GAS_addresses_init (cfg, GSA_stats))
187 GAS_reservations_done ();
188 if (NULL != GSA_stats)
190 GNUNET_STATISTICS_destroy (GSA_stats, GNUNET_NO);
195 GAS_performance_init (server);
196 GAS_scheduling_init (server);
198 GNUNET_SERVER_disconnect_notify (server,
199 &client_disconnect_handler, NULL);
200 GNUNET_SERVER_add_handlers (server, handlers);
201 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
202 &cleanup_task, NULL);
207 * The main function for the ats service.
209 * @param argc number of arguments from the command line
210 * @param argv command line arguments
211 * @return 0 ok, 1 on error
214 main (int argc, char *const *argv)
217 GNUNET_SERVICE_run (argc, argv, "ats",
218 GNUNET_SERVICE_OPTION_NONE,
219 &run, NULL)) ? 0 : 1;
222 /* end of gnunet-service-ats.c */