+++ /dev/null
-/* $Id$ */
-
-/* Copyright (c) 2005 Henri Casanova. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "network_dassf_private.h"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
-
-/* surf_network_resource_t surf_network_resource = NULL; */
-/*xbt_dict_t network_link_set = NULL;*/
-/* xbt_dict_t network_card_set = NULL; */
-
-static int card_number = 0;
-static network_link_DASSF_t **routing_table = NULL;
-static int *routing_table_size = NULL;
-
-#define ROUTE(i,j) routing_table[(i)+(j)*card_number]
-#define ROUTE_SIZE(i,j) routing_table_size[(i)+(j)*card_number]
-
-static void create_routing_table(void)
-{
- routing_table = xbt_new0(network_link_DASSF_t *, card_number * card_number);
- routing_table_size = xbt_new0(int, card_number * card_number);
-}
-
-static void network_link_free(void *nw_link)
-{
- free(((network_link_DASSF_t)nw_link)->name);
- free(nw_link);
-}
-
-static network_link_DASSF_t network_link_new(char *name,
- double bw_initial,
- tmgr_trace_t bw_trace,
- double lat_initial,
- tmgr_trace_t lat_trace,
- e_surf_network_link_state_t
- state_initial,
- tmgr_trace_t state_trace)
-{
- network_link_DASSF_t nw_link = xbt_new0(s_network_link_DASSF_t, 1);
-
-
- nw_link->resource = (surf_resource_t) surf_network_resource;
- nw_link->name = name;
- nw_link->bw_current = bw_initial;
- if (bw_trace)
- nw_link->bw_event =
- tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
- nw_link->lat_current = lat_initial;
- if (lat_trace)
- nw_link->lat_event =
- tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
- nw_link->state_current = state_initial;
- if (state_trace)
- nw_link->state_event =
- tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
-
- nw_link->constraint =
- lmm_constraint_new(maxmin_system, nw_link, nw_link->bw_current);
-
- xbt_dict_set(network_link_set, name, nw_link, network_link_free);
-
- return nw_link;
-}
-
-static void network_card_free(void *nw_card)
-{
- free(((network_card_DASSF_t)nw_card)->name);
- free(nw_card);
-}
-
-static int network_card_new(const char *card_name)
-{
- network_card_DASSF_t card = xbt_dict_get_or_null(network_card_set, card_name);
-
- if (!card) {
- card = xbt_new0(s_network_card_DASSF_t, 1);
- card->name = xbt_strdup(card_name);
- card->id = card_number++;
- xbt_dict_set(network_card_set, card_name, card, network_card_free);
- }
- return card->id;
-}
-
-static void route_new(int src_id, int dst_id, network_link_DASSF_t *link_list, int nb_link)
-{
- ROUTE_SIZE(src_id, dst_id) = nb_link;
- ROUTE(src_id, dst_id) = link_list = xbt_realloc(link_list, sizeof(network_link_DASSF_t) * nb_link);
-}
-
-static void parse_network_link(void)
-{
- char *name;
- double bw_initial;
- tmgr_trace_t bw_trace;
- double lat_initial;
- tmgr_trace_t lat_trace;
- e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
- tmgr_trace_t state_trace;
-
- name = xbt_strdup(A_surfxml_network_link_name);
- surf_parse_get_double(&bw_initial,A_surfxml_network_link_bandwidth);
- surf_parse_get_trace(&bw_trace, A_surfxml_network_link_bandwidth_file);
- surf_parse_get_double(&lat_initial,A_surfxml_network_link_latency);
- surf_parse_get_trace(&lat_trace, A_surfxml_network_link_latency_file);
-
- xbt_assert0((A_surfxml_network_link_state==A_surfxml_network_link_state_ON)||
- (A_surfxml_network_link_state==A_surfxml_network_link_state_OFF),
- "Invalid state");
- if (A_surfxml_network_link_state==A_surfxml_network_link_state_ON)
- state_initial = SURF_NETWORK_LINK_ON;
- if (A_surfxml_network_link_state==A_surfxml_network_link_state_OFF)
- state_initial = SURF_NETWORK_LINK_OFF;
- surf_parse_get_trace(&state_trace,A_surfxml_network_link_state_file);
-
- network_link_new(name, bw_initial, bw_trace,
- lat_initial, lat_trace, state_initial, state_trace);
-}
-
-static int nb_link;
-static int link_list_capacity;
-static network_link_DASSF_t *link_list = NULL;
-static int src_id = -1;
-static int dst_id = -1;
-
-static void parse_route_set_endpoints(void)
-{
- src_id = network_card_new(A_surfxml_route_src);
- dst_id = network_card_new(A_surfxml_route_dst);
- nb_link = 0;
- link_list_capacity = 20;
- link_list = xbt_new(network_link_DASSF_t, link_list_capacity);
-}
-
-static void parse_route_elem(void)
-{
- if (nb_link == link_list_capacity) {
- link_list_capacity *= 2;
- link_list = xbt_realloc(link_list, link_list_capacity * sizeof(network_link_DASSF_t));
- }
- link_list[nb_link++] = xbt_dict_get_or_null(network_link_set, A_surfxml_route_element_name);
-}
-
-static void parse_route_set_route(void)
-{
- route_new(src_id, dst_id, link_list, nb_link);
-}
-
-static void parse_file(const char *file)
-{
- /* Figuring out the network links */
- surf_parse_reset_parser();
- ETag_surfxml_network_link_fun=parse_network_link;
- surf_parse_open(file);
- xbt_assert1((!surf_parse()),"Parse error in %s",file);
- surf_parse_close();
-
- /* Figuring out the network cards used */
- surf_parse_reset_parser();
- STag_surfxml_route_fun=parse_route_set_endpoints;
- surf_parse_open(file);
- xbt_assert1((!surf_parse()),"Parse error in %s",file);
- surf_parse_close();
-
- create_routing_table();
-
- /* Building the routes */
- surf_parse_reset_parser();
- STag_surfxml_route_fun=parse_route_set_endpoints;
- ETag_surfxml_route_element_fun=parse_route_elem;
- ETag_surfxml_route_fun=parse_route_set_route;
- surf_parse_open(file);
- xbt_assert1((!surf_parse()),"Parse error in %s",file);
- surf_parse_close();
-}
-
-static void *name_service(const char *name)
-{
- return xbt_dict_get_or_null(network_card_set, name);
-}
-
-static const char *get_resource_name(void *resource_id)
-{
- return ((network_card_DASSF_t) resource_id)->name;
-}
-
-static int resource_used(void *resource_id)
-{
- return lmm_constraint_used(maxmin_system,
- ((network_link_DASSF_t) resource_id)->constraint);
-}
-
-static int action_free(surf_action_t action)
-{
- action->using--;
- if(!action->using) {
- xbt_swag_remove(action, action->state_set);
- if(((surf_action_network_DASSF_t)action)->variable)
- lmm_variable_free(maxmin_system, ((surf_action_network_DASSF_t)action)->variable);
- free(action);
- }
- return 1;
-}
-
-static void action_cancel(surf_action_t action)
-{
- return;
-}
-
-static void action_recycle(surf_action_t action)
-{
- return;
-}
-
-static void action_change_state(surf_action_t action,
- e_surf_action_state_t state)
-{
-/* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
-/* if(((surf_action_network_DASSF_t)action)->variable) { */
-/* lmm_variable_disable(maxmin_system, ((surf_action_network_DASSF_t)action)->variable); */
-/* ((surf_action_network_DASSF_t)action)->variable = NULL; */
-/* } */
-
- surf_action_change_state(action, state);
- return;
-}
-
-/* I nothing more happens, return the date at which the first action that will terminate does terminate */
-/* This returns the time for the first NETWORK action to complete */
-/* It would be nice to store this minimum somewhere so that the next function can
- figure out whether the min comes from the network or from something else */
-static double share_resources(double now)
-{
- s_surf_action_network_DASSF_t s_action;
- surf_action_network_DASSF_t action = NULL;
- xbt_swag_t running_actions = surf_network_resource->common_public->states.running_action_set;
- double min = generic_maxmin_share_resources(running_actions,
- xbt_swag_offset(s_action, variable));
-
- xbt_swag_foreach(action, running_actions) {
- if(action->latency>0) {
- if(min<0) min = action->latency;
- else if (action->latency<min) min = action->latency;
- }
- }
-
- return min;
-}
-
-/* delta: by how many time units the simulation must advance */
-/* In this function: change the state of actions that terminate */
-/* The delta may not come from the network, and thus may be different (smaller)
- than the one returned by the function above */
-/* If the delta is a network-caused min, then do not emulate any timer in the
- network simulation, otherwise fake a timer somehow to advance the simulation of min seconds */
-
-static void update_actions_state(double now, double delta)
-{
- double deltap = 0.0;
- surf_action_network_DASSF_t action = NULL;
- surf_action_network_DASSF_t next_action = NULL;
- xbt_swag_t running_actions =
- surf_network_resource->common_public->states.running_action_set;
- /* KILLME: unused
- xbt_swag_t failed_actions =
- surf_network_resource->common_public->states.failed_action_set;
- */
-
- xbt_swag_foreach_safe(action, next_action, running_actions) {
- deltap = delta;
- if (action->latency > 0) {
- if (action->latency > deltap) {
- double_update(&(action->latency),deltap);
- deltap = 0.0;
- } else {
- double_update(&(deltap), action->latency);
- action->latency = 0.0;
- }
- if ((action->latency == 0.0) && !(action->suspended))
- lmm_update_variable_weight(maxmin_system, action->variable, 1.0);
- }
- double_update(&(action->generic_action.remains),
- lmm_variable_getvalue(action->variable) * deltap);
- if (action->generic_action.max_duration != NO_MAX_DURATION)
- double_update(&(action->generic_action.max_duration), delta);
-
- /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
-
- if (action->generic_action.remains <= 0) {
- action->generic_action.finish = surf_get_clock();
- action_change_state((surf_action_t) action, SURF_ACTION_DONE);
- } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
- (action->generic_action.max_duration <= 0)) {
- action->generic_action.finish = surf_get_clock();
- action_change_state((surf_action_t) action, SURF_ACTION_DONE);
- } else { /* Need to check that none of the resource has failed */
- /* to ignore for now */
- lmm_constraint_t cnst = NULL;
- int i = 0;
- network_link_DASSF_t nw_link = NULL;
-
- while ((cnst =
- lmm_get_cnst_from_var(maxmin_system, action->variable,
- i++))) {
- nw_link = lmm_constraint_id(cnst);
- if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
- action->generic_action.finish = surf_get_clock();
- action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
- break;
- }
- }
- }
- }
-
- return;
-}
-
-/* Called only when there is a change in trace: Useless in packet-level simulation */
-static void update_resource_state(void *id,
- tmgr_trace_event_t event_type,
- double value)
-{
- network_link_DASSF_t nw_link = id;
- /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
- /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
- /* value, event_type); */
-
- if (event_type == nw_link->bw_event) {
- nw_link->bw_current = value;
- lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
- nw_link->bw_current);
- } else if (event_type == nw_link->lat_event) {
- double delta = value - nw_link->lat_current;
- lmm_variable_t var = NULL;
- surf_action_network_DASSF_t action = NULL;
-
- nw_link->lat_current = value;
- while (lmm_get_var_from_cnst(maxmin_system, nw_link->constraint, &var)) {
- action = lmm_variable_id(var);
- action->lat_current += delta;
- if(action->rate<0)
- lmm_update_variable_bound(maxmin_system, action->variable,
- SG_TCP_CTE_GAMMA / action->lat_current);
- else
- lmm_update_variable_bound(maxmin_system, action->variable,
- min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
- }
- } else if (event_type == nw_link->state_event) {
- if (value > 0)
- nw_link->state_current = SURF_NETWORK_LINK_ON;
- else
- nw_link->state_current = SURF_NETWORK_LINK_OFF;
- } else {
- CRITICAL0("Unknown event ! \n");
- xbt_abort();
- }
-
- return;
-}
-
-static surf_action_t communicate(void *src, void *dst, double size, double rate)
-{
- surf_action_network_DASSF_t action = NULL;
- network_card_DASSF_t card_src = src;
- network_card_DASSF_t card_dst = dst;
- int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
- network_link_DASSF_t *route = ROUTE(card_src->id, card_dst->id);
- int i;
-
- xbt_assert2(route_size,"You're trying to send data from %s to %s but there is no connexion between these two cards.", card_src->name, card_dst->name);
-
- action = xbt_new0(s_surf_action_network_DASSF_t, 1);
-
- action->generic_action.using = 1;
- action->generic_action.cost = size;
- action->generic_action.remains = size;
- action->generic_action.max_duration = NO_MAX_DURATION;
- action->generic_action.start = -1.0;
- action->generic_action.finish = -1.0;
- action->generic_action.resource_type =
- (surf_resource_t) surf_network_resource;
-
- action->generic_action.state_set =
- surf_network_resource->common_public->states.running_action_set;
-
- xbt_swag_insert(action, action->generic_action.state_set);
- action->rate = rate;
-
- action->latency = 0.0;
- for (i = 0; i < route_size; i++)
- action->latency += route[i]->lat_current;
- action->lat_current = action->latency;
-
- if(action->latency>0)
- action->variable = lmm_variable_new(maxmin_system, action, 0.0, -1.0,
- route_size);
- else
- action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
- route_size);
-
- if(action->rate<0)
- lmm_update_variable_bound(maxmin_system, action->variable,
- SG_TCP_CTE_GAMMA / action->lat_current);
- else
- lmm_update_variable_bound(maxmin_system, action->variable,
- min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
-
- if(route_size == 0) {
- action_change_state((surf_action_t) action, SURF_ACTION_DONE);
- }
-
- for (i = 0; i < route_size; i++)
- lmm_expand(maxmin_system, route[i]->constraint, action->variable, 1.0);
-
- return (surf_action_t) action;
-}
-
-/* returns a NULL-terminated array of network_link_DASSF_t */
-static const void** get_route(void *src, void *dst) {
- network_card_DASSF_t card_src = src;
- network_card_DASSF_t card_dst = dst;
- return (const void**) ROUTE(card_src->id, card_dst->id);
-}
-
-static int get_route_size(void *src, void *dst) {
- network_card_DASSF_t card_src = src;
- network_card_DASSF_t card_dst = dst;
- return ROUTE_SIZE(card_src->id, card_dst->id);
-}
-
-static const char *get_link_name(const void *link) {
- return ((network_link_DASSF_t) link)->name;
-}
-
-static double get_link_bandwidth(const void *link) {
- return ((network_link_DASSF_t) link)->bw_current;
-}
-
-static double get_link_latency(const void *link) {
- return ((network_link_DASSF_t) link)->lat_current;
-}
-
-static void action_suspend(surf_action_t action)
-{
- ((surf_action_network_DASSF_t) action)->suspended = 1;
- lmm_update_variable_weight(maxmin_system,
- ((surf_action_network_DASSF_t) action)->variable, 0.0);
-}
-
-static void action_resume(surf_action_t action)
-{
- lmm_update_variable_weight(maxmin_system,
- ((surf_action_network_DASSF_t) action)->variable, 1.0);
- ((surf_action_network_DASSF_t) action)->suspended = 0;
-}
-
-static int action_is_suspended(surf_action_t action)
-{
- return ((surf_action_network_DASSF_t) action)->suspended;
-}
-
-static void finalize(void)
-{
- int i,j;
-
- xbt_dict_free(&network_card_set);
- xbt_dict_free(&network_link_set);
- xbt_swag_free(surf_network_resource->common_public->states.
- ready_action_set);
- xbt_swag_free(surf_network_resource->common_public->states.
- running_action_set);
- xbt_swag_free(surf_network_resource->common_public->states.
- failed_action_set);
- xbt_swag_free(surf_network_resource->common_public->states.
- done_action_set);
- free(surf_network_resource->common_public);
- free(surf_network_resource->common_private);
- free(surf_network_resource->extension_public);
-
- free(surf_network_resource);
- surf_network_resource = NULL;
-
- for (i = 0; i < card_number; i++)
- for (j = 0; j < card_number; j++)
- free(ROUTE(i,j));
- free(routing_table);
- routing_table = NULL;
- free(routing_table_size);
- routing_table_size = NULL;
- card_number = 0;
-}
-
-static void surf_network_resource_init_internal(void)
-{
- s_surf_action_t action;
-
- surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
-
- surf_network_resource->common_private =
- xbt_new0(s_surf_resource_private_t, 1);
- surf_network_resource->common_public =
- xbt_new0(s_surf_resource_public_t, 1);
- surf_network_resource->extension_public =
- xbt_new0(s_surf_network_resource_extension_public_t, 1);
-
- surf_network_resource->common_public->states.ready_action_set =
- xbt_swag_new(xbt_swag_offset(action, state_hookup));
- surf_network_resource->common_public->states.running_action_set =
- xbt_swag_new(xbt_swag_offset(action, state_hookup));
- surf_network_resource->common_public->states.failed_action_set =
- xbt_swag_new(xbt_swag_offset(action, state_hookup));
- surf_network_resource->common_public->states.done_action_set =
- xbt_swag_new(xbt_swag_offset(action, state_hookup));
-
- surf_network_resource->common_public->name_service = name_service;
- surf_network_resource->common_public->get_resource_name =
- get_resource_name;
- surf_network_resource->common_public->action_get_state =
- surf_action_get_state;
- surf_network_resource->common_public->action_get_start_time =
- surf_action_get_start_time;
- surf_network_resource->common_public->action_get_finish_time =
- surf_action_get_finish_time;
- surf_network_resource->common_public->action_free = action_free;
- surf_network_resource->common_public->action_cancel = action_cancel;
- surf_network_resource->common_public->action_recycle = action_recycle;
- surf_network_resource->common_public->action_change_state =
- action_change_state;
- surf_network_resource->common_public->action_set_data = surf_action_set_data;
- surf_network_resource->common_public->name = "network";
-
- surf_network_resource->common_private->resource_used = resource_used;
- surf_network_resource->common_private->share_resources = share_resources;
- surf_network_resource->common_private->update_actions_state =
- update_actions_state;
- surf_network_resource->common_private->update_resource_state =
- update_resource_state;
- surf_network_resource->common_private->finalize = finalize;
-
- surf_network_resource->common_public->suspend = action_suspend;
- surf_network_resource->common_public->resume = action_resume;
- surf_network_resource->common_public->is_suspended = action_is_suspended;
-
- surf_network_resource->extension_public->communicate = communicate;
- surf_network_resource->extension_public->get_route = get_route;
- surf_network_resource->extension_public->get_route_size = get_route_size;
- surf_network_resource->extension_public->get_link_name = get_link_name;
- surf_network_resource->extension_public->get_link_bandwidth = get_link_bandwidth;
- surf_network_resource->extension_public->get_link_latency = get_link_latency;
-
- network_link_set = xbt_dict_new();
- network_card_set = xbt_dict_new();
-
- xbt_assert0(maxmin_system, "surf_init has to be called first!");
-}
-
-/***************************************************************************/
-/* The nice Hack by Henri to use DASSF from within SURF ! */
-/***************************************************************************/
-/* I put this prototype here for now but it will have to go in
- src/include/surf.h when it will be functionnal. */
-void surf_network_resource_init_DASSF(const char *filename);
-
-void surf_network_resource_init_DASSF(const char *filename)
-{
- if (surf_network_resource)
- return;
- surf_network_resource_init_internal();
- parse_file(filename);
- xbt_dynar_push(resource_list, &surf_network_resource);
-}
