*
* @author Daniel Sangorrin <daniel.sangorrin@unican.es>
*
+ * @license
+ *
+ * -----------------------------------------------------------------------
+ * Copyright (C) 2006 - 2008 FRESCOR consortium partners:
+ *
+ * Universidad de Cantabria, SPAIN
+ * University of York, UK
+ * Scuola Superiore Sant'Anna, ITALY
+ * Kaiserslautern University, GERMANY
+ * Univ. Politécnica Valencia, SPAIN
+ * Czech Technical University in Prague, CZECH REPUBLIC
+ * ENEA SWEDEN
+ * Thales Communication S.A. FRANCE
+ * Visual Tools S.A. SPAIN
+ * Rapita Systems Ltd UK
+ * Evidence ITALY
+ *
+ * See http://www.frescor.org for a link to partners' websites
+ *
+ * FRESCOR project (FP6/2005/IST/5-034026) is funded
+ * in part by the European Union Sixth Framework Programme
+ * The European Union is not liable of any use that may be
+ * made of this code.
+ *
+ * This file is part of FRESCAN
+ *
+ * FRESCAN is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * FRESCAN 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * distributed with FRESCAN; see file COPYING. If not, write to the
+ * Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * As a special exception, including FRESCAN header files in a file,
+ * instantiating FRESCAN generics or templates, or linking other files
+ * with FRESCAN objects to produce an executable application, does not
+ * by itself cause the resulting executable application to be covered
+ * by the GNU General Public License. This exception does not
+ * however invalidate any other reasons why the executable file might be
+ * covered by the GNU Public License.
+ * -----------------------------------------------------------------------
+ *
*/
+#include "frsh.h"
#include "frescan_bwres.h"
#include "frescan_bwres_requests.h"
+#include "frescan_bwres_robjs.h"
#include "frescan_bwres_messages.h"
#include "frescan_bwres_threads.h"
+#include "frescan_bwres_analysis.h"
#include "frescan_data.h"
#include "frescan_debug.h"
#include "frescan_config.h"
int frescan_bwres_init(frescan_network_t net)
{
int ret;
- frescan_server_params_t params;
+ frescan_node_t node;
+ frescan_ss_t neg_msg_ss_id;
+ frescan_server_params_t server_params;
+ frescan_bwres_sa_init_params_t init_params;
+ frsh_contract_t neg_msgs_contract;
+ frsh_rel_time_t neg_msgs_budget;
+ frsh_rel_time_t neg_msgs_period;
+
+ init_params.min_prio = FRESCAN_BWRES_SS_MIN_PRIO;
+ init_params.max_prio = FRESCAN_BWRES_SS_MAX_PRIO;
+
+ if (frescan_data[net].local_node == FRESCAN_BWRES_MASTER_NODE) {
+ ret = frescan_bwres_sa_init(&frescan_data[net].scenario,
+ &init_params);
+ if (ret != 0) return ret;
+
+ // Add contracts for the negotiation messages
+ ret = frsh_contract_init(&neg_msgs_contract);
+ if (ret != 0) return ret;
+
+ neg_msgs_budget = frsh_usec_to_rel_time(
+ (long)FRESCAN_FRAME_TX_TIME_US *
+ FRESCAN_BWRES_NEG_MSG_BUDGET);
+
+ neg_msgs_period = frsh_usec_to_rel_time(
+ (long)FRESCAN_BWRES_NEG_MSG_PERIOD);
+
+ ret = frsh_contract_set_basic_params(&neg_msgs_contract,
+ &neg_msgs_budget,
+ &neg_msgs_period,
+ FRSH_WT_INDETERMINATE,
+ FRSH_CT_REGULAR);
+ if (ret != 0) return ret;
+
+ ret = frsh_contract_set_preemption_level
+ (&neg_msgs_contract, FRESCAN_BWRES_NEG_MSG_PRIO);
+ if (ret != 0) return ret;
+
+ for(node=0; node<FRESCAN_MX_NODES; node++) {
+ ret = freelist_init(&frescan_data[net].scenario.
+ ss_id_freelist[node],
+ FRESCAN_MX_IDS);
+ if (ret != 0) return ret;
+
+ ret = freelist_alloc(&frescan_data[net].scenario.
+ ss_id_freelist[node]);
+ if (ret < 0) return -1;
+
+ neg_msg_ss_id = (frescan_ss_t)ret;
- // TODO: server params must be configurable
- // TODO: initialization tree like in DTM
- params.values.budget = 5;
- params.values.period.tv_sec = 1;
- params.values.period.tv_nsec = 0;
- params.prio = FRESCAN_BWRES_NEG_MESSAGES_PRIO;
+ DEBUG(FRESCAN_BWRES_ENABLE_DEBUG,
+ "manager contract node:%u b:(%d,%d) t:(%d,%d) p:%u\n",
+ node,
+ neg_msgs_budget.tv_sec, neg_msgs_budget.tv_nsec,
+ neg_msgs_period.tv_sec, neg_msgs_period.tv_nsec,
+ FRESCAN_BWRES_NEG_MSG_PRIO);
- ret = frescan_servers_create(net, ¶ms,
- &the_networks[net].neg_messages_ss_id);
+ ret = frescan_bwres_sa_add_contract
+ (&frescan_data[net].scenario,
+ neg_msg_ss_id,
+ node,
+ &neg_msgs_contract);
+ if (ret != 0) return ret;
+ }
+ }
+
+ server_params.budget = FRESCAN_BWRES_NEG_MSG_BUDGET;
+ server_params.period = frsh_rel_time_to_timespec(
+ frsh_usec_to_rel_time(
+ (long)FRESCAN_BWRES_NEG_MSG_PERIOD));
+ server_params.prio = FRESCAN_BWRES_NEG_MSG_PRIO;
+
+ ret = frescan_servers_create(net, &server_params,
+ &frescan_data[net].neg_messages_ss_id);
+ if (ret != 0) return ret;
+
+ DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "neg_msg_ss_id: %u\n",
+ frescan_data[net].neg_messages_ss_id);
+
+ ret = frescan_bwres_robjs_init(FRESCAN_BWRES_ROBJS_MX_CEILING);
if (ret != 0) return ret;
- ret = frescan_bwres_robjs_init(FRESCAN_REPLY_OBJECTS_MX_CEILING);
+ ret = frescan_bwres_requests_init(FRESCAN_BWRES_REQ_MX_CEILING);
if (ret != 0) return ret;
- ret = frescan_requests_init(FRESCAN_REQUESTS_MX_CEILING);
+ ret = frescan_messages_init(net);
if (ret != 0) return ret;
ret = frescan_manager_thread_create(net);
}
/**
- * frescan_bwres_negotiate()
- *
- * to negotiate a contract we follow the next steps:
+ * frescan_bwres_group_change_mode_sync()
*
- * 1.- prepare a request
+ * 1.- allocate and prepare the GN request
* 2.- enqueue the request
* 3.- wait in the reply object for a reply
- * 4.- return the final values and free the request
- *
+ * (unless there are only cancellations)
+ * 4.- free the request
*/
-int frescan_bwres_negotiate(frescan_network_t net,
- const frescan_contract_t *contract,
- frescan_ss_t *id)
+int frescan_bwres_group_change_mode_sync
+ (frescan_network_t net,
+ const frsh_contracts_group_t *contracts_to_neg,
+ const frsh_contracts_group_t *contracts_to_reneg,
+ const frescan_ss_group_t *ss_to_reneg,
+ const frescan_ss_group_t *ss_to_cancel,
+ frescan_ss_group_t *ss_new,
+ bool *accepted)
{
int ret;
- frescan_request_id_t req;
- frescan_request_data_t *req_data;
+ frescan_bwres_request_id_t req;
+ frescan_bwres_request_data_t *req_data;
- DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "preparing a negotiation request\n");
+ DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "preparing a GN request\n");
- ret = frescan_requests_alloc(&req);
+ ret = frescan_bwres_requests_alloc(&req);
if (ret != 0) return ret;
- ret = frescan_requests_get_data(req, &req_data);
+ ret = frescan_bwres_requests_get_data(req, &req_data);
if (ret != 0) return ret;
- req_data->type = FRESCAN_REQ_NEG;
+ req_data->net = net;
+ req_data->type = FRESCAN_BWRES_REQ_GN;
req_data->req = req;
- req_data->contract = (frescan_contract_t *)contract;
- req_data->request_node = the_networks[net].local_node;
+ req_data->request_node = frescan_data[net].local_node;
+
+ if (contracts_to_neg == NULL) {
+ req_data->contracts_to_neg = &req_data->contracts_to_neg_data;
+ req_data->contracts_to_neg->size = 0;
+ } else {
+ req_data->contracts_to_neg =
+ (frsh_contracts_group_t *)contracts_to_neg;
+ }
+
+ if (contracts_to_reneg == NULL) {
+ req_data->contracts_to_reneg = &req_data->
+ contracts_to_reneg_data;
+ req_data->contracts_to_reneg->size = 0;
+ } else {
+ req_data->contracts_to_reneg = (frsh_contracts_group_t *)
+ contracts_to_reneg;
+ }
+
+ if (ss_to_reneg == NULL) {
+ req_data->ss_to_reneg = &req_data->ss_to_reneg_data;
+ req_data->ss_to_reneg->size = 0;
+ } else {
+ req_data->ss_to_reneg = (frescan_ss_group_t *)ss_to_reneg;
+ }
+
+ if (ss_to_cancel == NULL) {
+ req_data->ss_to_cancel = &req_data->ss_to_cancel_data;
+ req_data->ss_to_cancel->size = 0;
+ } else {
+ req_data->ss_to_cancel = (frescan_ss_group_t *)ss_to_cancel;
+
+ }
+
+ if (ss_new == NULL) {
+ req_data->ss_new = &req_data->ss_new_data;
+ req_data->ss_new->size = 0;
+ } else {
+ req_data->ss_new = ss_new;
+ }
ret = frescan_bwres_robjs_alloc(&req_data->robj, FRESCAN_BWRES_MX_PRIO);
if (ret != 0) return ret;
DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "enqueue the negotiation request\n");
- ret = frescan_requests_enqueue(req);
+ ret = frescan_bwres_requests_enqueue(req);
if (ret != 0) return ret;
DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "wait for a reply\n");
if (ret != 0) return ret;
switch (req_data->return_value) {
- case FRESCAN_REQ_ACCEPTED:
+ case FRESCAN_BWRES_REQ_ACCEPTED:
DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "negotiation OK\n");
- *id = req_data->ss;
- ret = 0;
+ *accepted = true;
break;
- case FRESCAN_REQ_NOT_ACCEPTED:
+ case FRESCAN_BWRES_REQ_NOT_ACCEPTED:
DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "negotiation FAIL\n");
- ret = -1;
- break;
-
- case FRESCAN_REQ_ERROR:
- DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "negotiation ERROR\n");
- ret = -1;
+ *accepted = false;
break;
default:
- ERROR("return_value unknown\n");
+ FRESCAN_ERROR("return_value unknown\n");
return -1;
}
- DEBUG(FRESCAN_BWRES_ENABLE_DEBUG, "free the request\n");
+ ret = frescan_bwres_requests_free(req);
+ if (ret != 0) return ret;
+
+ return 0;
+}
+
+/**
+ * frescan_bwres_negotiate()
+ */
+
+int frescan_bwres_negotiate(frescan_network_t net,
+ const frsh_contract_t *contract,
+ frescan_ss_t *ss,
+ bool *accepted)
+{
+ int ret;
+ frsh_contracts_group_t contracts_to_neg;
+ frescan_ss_group_t ss_new;
+
+ contracts_to_neg.size = 1;
+ contracts_to_neg.contracts[0] = *contract;
+
+ ret = frescan_bwres_group_change_mode_sync
+ (net, &contracts_to_neg, NULL, NULL,
+ NULL, &ss_new, accepted);
+ if (ret != 0) return ret;
+
+ if (*accepted) {
+ *ss = ss_new.ss[0];
+ }
+
+ return 0;
+}
+
+/**
+ * frescan_bwres_renegotiate()
+ */
+
+int frescan_bwres_renegotiate(frescan_network_t net,
+ const frsh_contract_t *contract,
+ frescan_ss_t ss,
+ bool *accepted)
+{
+ frsh_contracts_group_t contracts_to_reneg;
+ frescan_ss_group_t ss_to_reneg;
+
+ contracts_to_reneg.size = 1;
+ contracts_to_reneg.contracts[0] = *contract;
+
+ ss_to_reneg.size = 1;
+ ss_to_reneg.ss[0] = ss;
+
+ return frescan_bwres_group_change_mode_sync
+ (net, NULL, &contracts_to_reneg, &ss_to_reneg,
+ NULL, NULL, accepted);
+}
+
+/**
+ * frescan_bwres_cancel()
+ */
+
+int frescan_bwres_cancel(frescan_network_t net,
+ frescan_ss_t ss)
+{
+ frescan_ss_group_t ss_to_cancel;
- frescan_requests_free(req);
+ ss_to_cancel.size = 1;
+ ss_to_cancel.ss[0] = ss;
- return ret;
+ return frescan_bwres_group_change_mode_sync
+ (net, NULL, NULL, NULL, &ss_to_cancel, NULL, NULL);
}
projects / frescor / fna.git / blobdiff