/*
This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
+ (C) 2011 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
* @file ats/gnunet-service-ats.c
* @brief ats service
* @author Matthias Wachs
+ * @author Christian Grothoff
*/
#include "platform.h"
-#include "gnunet_getopt_lib.h"
-#include "gnunet_service_lib.h"
-#include "gnunet_container_lib.h"
-#include "gnunet_ats_service.h"
+#include "gnunet_util_lib.h"
+#include "gnunet-service-ats.h"
+#include "gnunet-service-ats_addresses.h"
+#include "gnunet-service-ats_performance.h"
+#include "gnunet-service-ats_scheduling.h"
+#include "gnunet-service-ats_reservations.h"
#include "ats.h"
-struct ATS_Clients
-{
- struct ATS_Clients * next;
-
- struct ATS_Clients * prev;
-
- struct GNUNET_SERVER_Client *client;
-
- uint32_t flags;
-};
-
-struct ATS_Address
-{
- struct GNUNET_PeerIdentity peer;
-
- size_t addr_len;
-
- uint32_t session_id;
-
- uint32_t ats_count;
-
- void * addr;
-
- char * plugin;
-
- struct GNUNET_TRANSPORT_ATS_Information * ats;
-};
-
/**
- * Head of linked list of all clients to this service.
+ * Handle for statistics.
*/
-static struct ATS_Clients *ac_head;
+struct GNUNET_STATISTICS_Handle *GSA_stats;
/**
- * Tail of linked list of all clients to this service.
+ * Handle to the ATS server.
*/
-static struct ATS_Clients *ac_tail;
+static struct GNUNET_SERVER_Handle *GSA_server;
-static struct GNUNET_CONTAINER_MultiHashMap * addresses;
+/**
+ * Handle to the address state.
+ */
+static struct GAS_Addresses_Handle *GSA_addresses;
-int address_it (void *cls,
- const GNUNET_HashCode * key,
- void *value)
-{
- struct ATS_Address * aa = cls;
- GNUNET_free (aa);
- return GNUNET_OK;
-}
/**
- * Task run during shutdown.
+ * We have received a `struct ClientStartMessage` from a client. Find out which
+ * type of client it is and notify the respective subsystem.
*
- * @param cls unused
- * @param tc unused
+ * @param cls closure, unused
+ * @param client handle to the client
+ * @param message the start message
*/
static void
-cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct ATS_Clients * t;
-
- while (ac_head != NULL)
- {
- t = ac_head;
- GNUNET_CONTAINER_DLL_remove(ac_head,ac_tail, t);
- GNUNET_free (t);
- }
-
- GNUNET_CONTAINER_multihashmap_iterate (addresses, address_it, NULL);
-
- GNUNET_CONTAINER_multihashmap_destroy (addresses);
-}
-
-static struct ATS_Clients * find_client (struct GNUNET_SERVER_Client *client)
+handle_ats_start (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
{
- struct ATS_Clients * ac = ac_head;
- while (ac != NULL)
+ const struct ClientStartMessage *msg =
+ (const struct ClientStartMessage *) message;
+ enum StartFlag flag;
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received `%s' message\n",
+ "ATS_START");
+ flag = ntohl (msg->start_flag);
+ switch (flag)
{
- if (ac->client == client)
+ case START_FLAG_SCHEDULING:
+ if (GNUNET_OK != GAS_scheduling_add_client (client))
+ {
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ break;
+ case START_FLAG_PERFORMANCE_WITH_PIC:
+ GAS_performance_add_client (client, flag);
+ break;
+ case START_FLAG_PERFORMANCE_NO_PIC:
+ GAS_performance_add_client (client, flag);
break;
- ac = ac->next;
+ default:
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
}
- return ac;
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
-static void
-handle_ats_start (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
-{
- struct ClientStartMessage * msg = (struct ClientStartMessage *) message;
- struct ATS_Clients * ac = NULL;
-
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ATS_START");
-
- GNUNET_assert (find_client(client) == NULL);
-
- ac = GNUNET_malloc (sizeof (struct ATS_Clients));
- ac->client = client;
- ac->flags = ntohl (msg->start_flag);
-
- GNUNET_CONTAINER_DLL_insert(ac_head, ac_tail, ac);
-}
-
-static void
-handle_request_address (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
-{
- // struct RequestAddressMessage * msg = (struct RequestAddressMessage *) message;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "REQUEST_ADDRESS");
-
-}
+/**
+ * A client disconnected from us. Tear down the local client
+ * record.
+ *
+ * @param cls unused
+ * @param client handle of the client
+ */
static void
-handle_address_update (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
+client_disconnect_handler (void *cls,
+ struct GNUNET_SERVER_Client *client)
{
- struct AddressUpdateMessage * msg = (struct AddressUpdateMessage *) message;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ADDRESS_UPDATE");
-
- struct GNUNET_TRANSPORT_ATS_Information *am;
- char *pm;
-
- size_t size = ntohs (msg->header.size);
- if (size <= sizeof (struct AddressUpdateMessage))
- GNUNET_break (0);
-
- size_t ats_count = ntohs (msg->ats_count);
- size_t addr_len = ntohs (msg->address_length);
- size_t plugin_len = ntohs (msg->plugin_name_length) + 1 ;
-
- struct ATS_Address * aa = GNUNET_malloc (sizeof (struct ATS_Address) +
- ats_count * sizeof (struct GNUNET_TRANSPORT_ATS_Information) +
- addr_len +
- plugin_len);
-
-
-
- memcpy (&aa->peer, &msg->peer, sizeof (struct GNUNET_PeerIdentity));
- aa->addr_len = addr_len;
- aa->ats_count = ats_count;
- aa->ats = (struct GNUNET_TRANSPORT_ATS_Information *) &aa[1];
-
- am = (struct GNUNET_TRANSPORT_ATS_Information*) &msg[1];
- memcpy (&aa->ats, am, ats_count * sizeof (struct GNUNET_TRANSPORT_ATS_Information));
- pm = (char *) &am[ats_count];
- memcpy (aa->addr, pm, addr_len);
- memcpy (aa->plugin, &pm[plugin_len], plugin_len);
- aa->session_id = ntohl(msg->session_id);
-
- GNUNET_assert (GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(addresses, &aa->peer.hashPubKey, aa, GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
+ if (NULL == client)
+ return;
+ GAS_scheduling_remove_client (client);
+ GAS_performance_remove_client (client);
}
-static void
-handle_address_destroyed (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
-{
- // struct AddressDestroyedMessage * msg = (struct AddressDestroyedMessage *) message;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "ADDRESS_DESTROYED");
-
-}
+/**
+ * Task run during shutdown.
+ *
+ * @param cls unused
+ * @param tc unused
+ */
static void
-handle_reservation_request (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
+cleanup_task (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- // struct AddressUpdateMessage * msg = (struct AddressUpdateMessage *) message;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "RESERVATION_REQUEST");
+ GAS_addresses_done (GSA_addresses);
+ GAS_scheduling_done ();
+ GAS_performance_done ();
+ GAS_reservations_done ();
+ GNUNET_SERVER_disconnect_notify_cancel (GSA_server,
+ &client_disconnect_handler,
+ NULL);
+ if (NULL != GSA_stats)
+ {
+ GNUNET_STATISTICS_destroy (GSA_stats, GNUNET_NO);
+ GSA_stats = NULL;
+ }
}
-static void
-handle_preference_change (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-
-{
- // struct ChangePreferenceMessage * msg = (struct ChangePreferenceMessage *) message;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' message\n", "PREFERENCE_CHANGE");
-}
/**
* Process template requests.
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
static const struct GNUNET_SERVER_MessageHandler handlers[] = {
- {&handle_ats_start, NULL, GNUNET_MESSAGE_TYPE_ATS_START, sizeof (struct ClientStartMessage)},
- {&handle_request_address, NULL, GNUNET_MESSAGE_TYPE_ATS_REQUEST_ADDRESS, sizeof (struct RequestAddressMessage)},
- {&handle_address_update, NULL, GNUNET_MESSAGE_TYPE_ATS_ADDRESS_UPDATE, 0},
- {&handle_address_destroyed, NULL, GNUNET_MESSAGE_TYPE_ATS_ADDRESS_DESTROYED, 0},
- {&handle_reservation_request, NULL, GNUNET_MESSAGE_TYPE_ATS_RESERVATION_REQUEST, sizeof (struct ReservationRequestMessage)},
- {&handle_preference_change, NULL, GNUNET_MESSAGE_TYPE_ATS_PREFERENCE_CHANGE, 0},
+ {&handle_ats_start, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_START, sizeof (struct ClientStartMessage)},
+ {&GAS_handle_request_address, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_REQUEST_ADDRESS,
+ sizeof (struct RequestAddressMessage)},
+ {&GAS_handle_request_address_cancel, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_REQUEST_ADDRESS_CANCEL,
+ sizeof (struct RequestAddressMessage)},
+ {&GAS_handle_request_address_list, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_ADDRESSLIST_REQUEST,
+ sizeof (struct AddressListRequestMessage)},
+ {&GAS_handle_address_add, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_ADDRESS_ADD, 0},
+ {&GAS_handle_address_update, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_ADDRESS_UPDATE, 0},
+ {&GAS_handle_address_in_use, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_ADDRESS_IN_USE, 0},
+ {&GAS_handle_address_destroyed, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_ADDRESS_DESTROYED, 0},
+ {&GAS_handle_reservation_request, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_RESERVATION_REQUEST,
+ sizeof (struct ReservationRequestMessage)},
+ {&GAS_handle_preference_change, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_PREFERENCE_CHANGE, 0},
+ {&GAS_handle_preference_feedback, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_PREFERENCE_FEEDBACK, 0},
+ {&GAS_handle_reset_backoff, NULL,
+ GNUNET_MESSAGE_TYPE_ATS_RESET_BACKOFF,
+ sizeof (struct ResetBackoffMessage)},
{NULL, NULL, 0, 0}
};
-
- addresses = GNUNET_CONTAINER_multihashmap_create(100);
-
+ GSA_server = server;
+ GSA_stats = GNUNET_STATISTICS_create ("ats", cfg);
+ GAS_reservations_init ();
+ GSA_addresses = GAS_addresses_init (cfg, GSA_stats);
+ GAS_performance_init (server, GSA_addresses);
+ GAS_scheduling_init (server, GSA_addresses);
+
+ GNUNET_SERVER_disconnect_notify (server, &client_disconnect_handler, NULL);
GNUNET_SERVER_add_handlers (server, handlers);
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &cleanup_task,
NULL);
{
return (GNUNET_OK ==
GNUNET_SERVICE_run (argc, argv, "ats",
- GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
+ GNUNET_SERVICE_OPTION_NONE,
+ &run, NULL)) ? 0 : 1;
}
/* end of gnunet-service-ats.c */
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