123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282 |
- /*
- This file is part of GNUnet.
- Copyright (C) 2011-2015 GNUnet e.V.
- GNUnet is free software: you can redistribute it and/or modify it
- under the terms of the GNU Affero General Public License as published
- by the Free Software Foundation, either version 3 of the License,
- or (at your option) any later version.
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Affero General Public License for more details.
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- SPDX-License-Identifier: AGPL3.0-or-later
- */
- /**
- * @file ats/gnunet-service-ats_performance.c
- * @brief ats service, interaction with 'performance' API
- * @author Matthias Wachs
- * @author Christian Grothoff
- *
- * TODO:
- * - simplify functions by passing a `struct GNUNET_HELLO_Address`
- */
- #include "platform.h"
- #include "gnunet-service-ats.h"
- #include "gnunet-service-ats_addresses.h"
- #include "gnunet-service-ats_performance.h"
- #include "ats.h"
- /**
- * Context for sending messages to performance clients without PIC.
- */
- static struct GNUNET_NotificationContext *nc_no_pic;
- /**
- * Context for sending messages to performance clients with PIC.
- */
- static struct GNUNET_NotificationContext *nc_pic;
- /**
- * Transmit the given performance information to all performance
- * clients.
- *
- * @param client client to send to, NULL for all
- * @param peer peer for which this is an address suggestion
- * @param plugin_name 0-termintated string specifying the transport plugin
- * @param plugin_addr binary address for the plugin to use
- * @param plugin_addr_len number of bytes in plugin_addr
- * @param active #GNUNET_YES if this address is actively used
- * to maintain a connection to a peer;
- * #GNUNET_NO if the address is not actively used;
- * #GNUNET_SYSERR if this address is no longer available for ATS
- * @param prop performance data for the address
- * @param local_address_info information about the local flags for the address
- * @param bandwidth_out assigned outbound bandwidth
- * @param bandwidth_in assigned inbound bandwidth
- */
- static void
- notify_client (struct GNUNET_SERVICE_Client *client,
- const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name,
- const void *plugin_addr,
- size_t plugin_addr_len,
- int active,
- const struct GNUNET_ATS_Properties *prop,
- enum GNUNET_HELLO_AddressInfo local_address_info,
- struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
- struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
- {
- struct PeerInformationMessage *msg;
- size_t plugin_name_length = strlen (plugin_name) + 1;
- size_t msize =
- sizeof(struct PeerInformationMessage)
- + plugin_addr_len
- + plugin_name_length;
- char buf[msize] GNUNET_ALIGN;
- char *addrp;
- if (NULL != prop)
- GNUNET_break (GNUNET_NT_UNSPECIFIED != prop->scope);
- GNUNET_assert (msize < GNUNET_MAX_MESSAGE_SIZE);
- msg = (struct PeerInformationMessage *) buf;
- msg->header.size = htons (msize);
- msg->header.type = htons (GNUNET_MESSAGE_TYPE_ATS_PEER_INFORMATION);
- msg->id = htonl (0);
- msg->peer = *peer;
- msg->address_length = htons (plugin_addr_len);
- msg->address_active = ntohl ((uint32_t) active);
- msg->plugin_name_length = htons (plugin_name_length);
- msg->bandwidth_out = bandwidth_out;
- msg->bandwidth_in = bandwidth_in;
- if (NULL != prop)
- GNUNET_ATS_properties_hton (&msg->properties,
- prop);
- else
- memset (&msg->properties,
- 0,
- sizeof(struct GNUNET_ATS_Properties));
- msg->address_local_info = htonl (local_address_info);
- addrp = (char *) &msg[1];
- GNUNET_memcpy (addrp, plugin_addr, plugin_addr_len);
- strcpy (&addrp[plugin_addr_len], plugin_name);
- if (NULL == client)
- {
- GNUNET_notification_context_broadcast (nc_pic,
- &msg->header,
- GNUNET_YES);
- }
- else
- {
- struct GNUNET_MQ_Envelope *env;
- env = GNUNET_MQ_msg_copy (&msg->header);
- GNUNET_MQ_send (GNUNET_SERVICE_client_get_mq (client),
- env);
- }
- }
- /**
- * Transmit the given performance information to all performance
- * clients.
- *
- * @param peer peer for which this is an address suggestion
- * @param plugin_name 0-termintated string specifying the transport plugin
- * @param plugin_addr binary address for the plugin to use
- * @param plugin_addr_len number of bytes in @a plugin_addr
- * @param active #GNUNET_YES if this address is actively used
- * to maintain a connection to a peer;
- * #GNUNET_NO if the address is not actively used;
- * #GNUNET_SYSERR if this address is no longer available for ATS
- * @param prop performance data for the address
- * @param local_address_info information about the local flags for the address
- * @param bandwidth_out assigned outbound bandwidth
- * @param bandwidth_in assigned inbound bandwidth
- */
- void
- GAS_performance_notify_all_clients (const struct GNUNET_PeerIdentity *peer,
- const char *plugin_name,
- const void *plugin_addr,
- size_t plugin_addr_len,
- int active,
- const struct GNUNET_ATS_Properties *prop,
- enum GNUNET_HELLO_AddressInfo
- local_address_info,
- struct GNUNET_BANDWIDTH_Value32NBO
- bandwidth_out,
- struct GNUNET_BANDWIDTH_Value32NBO
- bandwidth_in)
- {
- GNUNET_break ((NULL == prop) ||
- (GNUNET_NT_UNSPECIFIED != prop->scope));
- notify_client (NULL,
- peer,
- plugin_name,
- plugin_addr,
- plugin_addr_len,
- active,
- prop,
- local_address_info,
- bandwidth_out,
- bandwidth_in);
- GNUNET_STATISTICS_update (GSA_stats,
- "# performance updates given to clients",
- 1,
- GNUNET_NO);
- }
- /**
- * Iterator for called from #GAS_addresses_get_peer_info()
- *
- * @param cls closure with the `struct GNUNET_SERVICE_Client *` to inform.
- * @param id the peer id
- * @param plugin_name plugin name
- * @param plugin_addr address
- * @param plugin_addr_len length of @a plugin_addr
- * @param active is address actively used
- * @param prop performance information
- * @param local_address_info information about the local flags for the address
- * @param bandwidth_out current outbound bandwidth assigned to address
- * @param bandwidth_in current inbound bandwidth assigned to address
- */
- static void
- peerinfo_it (void *cls,
- const struct GNUNET_PeerIdentity *id,
- const char *plugin_name,
- const void *plugin_addr,
- size_t plugin_addr_len,
- int active,
- const struct GNUNET_ATS_Properties *prop,
- enum GNUNET_HELLO_AddressInfo local_address_info,
- struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
- struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in)
- {
- struct GNUNET_SERVICE_Client *client = cls;
- if (NULL == id)
- return;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Callback for peer `%s' plugin `%s' BW out %u, BW in %u \n",
- GNUNET_i2s (id),
- plugin_name,
- (unsigned int) ntohl (bandwidth_out.value__),
- (unsigned int) ntohl (bandwidth_in.value__));
- GNUNET_break (GNUNET_NT_UNSPECIFIED != prop->scope);
- notify_client (client,
- id,
- plugin_name,
- plugin_addr,
- plugin_addr_len,
- active,
- prop,
- local_address_info,
- bandwidth_out,
- bandwidth_in);
- }
- /**
- * Register a new performance client.
- *
- * @param client handle of the new client
- * @param flag flag specifying the type of the client
- */
- void
- GAS_performance_add_client (struct GNUNET_SERVICE_Client *client,
- enum StartFlag flag)
- {
- struct GNUNET_MQ_Handle *mq;
- mq = GNUNET_SERVICE_client_get_mq (client);
- if (START_FLAG_PERFORMANCE_WITH_PIC == flag)
- {
- GNUNET_notification_context_add (nc_pic,
- mq);
- GAS_addresses_get_peer_info (NULL,
- &peerinfo_it,
- client);
- }
- else
- {
- GNUNET_notification_context_add (nc_no_pic,
- mq);
- }
- }
- /**
- * Initialize performance subsystem.
- *
- * @param server handle to our server
- */
- void
- GAS_performance_init ()
- {
- nc_no_pic = GNUNET_notification_context_create (32);
- nc_pic = GNUNET_notification_context_create (32);
- }
- /**
- * Shutdown performance subsystem.
- */
- void
- GAS_performance_done ()
- {
- GNUNET_notification_context_destroy (nc_no_pic);
- nc_no_pic = NULL;
- GNUNET_notification_context_destroy (nc_pic);
- nc_pic = NULL;
- }
- /* end of gnunet-service-ats_performance.c */
|