+++ /dev/null
-/* Copyright (c) 2008-2013. The SimGrid Team.
- * 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 "surf_private.h"
-#include "surf/random_mgr.h"
-#include "xbt/dict.h"
-#include "xbt/str.h"
-#include "xbt/log.h"
-
-typedef struct surf_action_network_Constant {
- s_surf_action_t generic_action;
- double latency;
- double lat_init;
- int suspended;
-} s_surf_action_network_Constant_t, *surf_action_network_Constant_t;
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
-static int host_number_int = 0;
-
-static void netcste_count_hosts(sg_platf_host_cbarg_t h) {
- host_number_int++;
-}
-
-static void netcste_define_callbacks(void) {
- sg_platf_host_add_cb(netcste_count_hosts);
-}
-
-static int netcste_resource_used(void *resource_id)
-{
- return 0;
-}
-
-static int netcste_action_unref(surf_action_t action)
-{
- action->refcount--;
- if (!action->refcount) {
- xbt_swag_remove(action, action->state_set);
- surf_action_free(&action);
- return 1;
- }
- return 0;
-}
-
-static void netcste_action_cancel(surf_action_t action)
-{
- return;
-}
-
-static double netcste_share_resources(surf_model_t network_model, double now)
-{
- surf_action_network_Constant_t action = NULL;
- xbt_swag_t running_actions =
- network_model->states.running_action_set;
- double min = -1.0;
-
- 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;
-}
-
-static void netcste_update_actions_state(surf_model_t network_model, double now, double delta)
-{
- surf_action_network_Constant_t action = NULL;
- surf_action_network_Constant_t next_action = NULL;
- xbt_swag_t running_actions =
- network_model->states.running_action_set;
-
- xbt_swag_foreach_safe(action, next_action, running_actions) {
- if (action->latency > 0) {
- if (action->latency > delta) {
- double_update(&(action->latency), delta);
- } else {
- action->latency = 0.0;
- }
- }
- double_update(&(action->generic_action.remains),
- action->generic_action.cost * delta / action->lat_init);
- if (action->generic_action.max_duration != NO_MAX_DURATION)
- double_update(&(action->generic_action.max_duration), delta);
-
- if (action->generic_action.remains <= 0) {
- action->generic_action.finish = surf_get_clock();
- network_model->action_state_set((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();
- network_model->action_state_set((surf_action_t) action,
- SURF_ACTION_DONE);
- }
- }
-}
-
-static void netcste_update_resource_state(void *id,
- tmgr_trace_event_t event_type,
- double value, double time)
-{
- DIE_IMPOSSIBLE;
-}
-
-static surf_action_t netcste_communicate(sg_routing_edge_t src,
- sg_routing_edge_t dst,
- double size, double rate)
-{
- surf_action_network_Constant_t action = NULL;
-
- char *src_name = src->name;
- char *dst_name = dst->name;
-
- XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
-
- action =
- surf_action_new(sizeof(s_surf_action_network_Constant_t), size,
- surf_network_model, 0);
-
- action->suspended = 0;
-
- action->latency = sg_latency_factor;
- action->lat_init = action->latency;
-
- if (action->latency <= 0.0) {
- action->generic_action.state_set =
- surf_network_model->states.done_action_set;
- xbt_swag_insert(action, action->generic_action.state_set);
- }
-
- XBT_OUT();
-
- return (surf_action_t) action;
-}
-
-#ifdef HAVE_TRACING
-static void netcste_action_set_category(surf_action_t action, const char *category)
-{
- //ignore completely the categories in constant model, they are not traced
-}
-#endif
-
-static double netcste_get_link_bandwidth(const void *link)
-{
- DIE_IMPOSSIBLE;
- return -1.0; /* useless since DIE actually abort(), but eclipse prefer to have a useless and harmless return */
-}
-
-static double netcste_get_link_latency(const void *link)
-{
- DIE_IMPOSSIBLE;
- return -1.0; /* useless since DIE actually abort(), but eclipse prefer to have a useless and harmless return */
-}
-
-static int link_shared(const void *link)
-{
- DIE_IMPOSSIBLE;
- return -1; /* useless since DIE actually abort(), but eclipse prefer to have a useless and harmless return */
-}
-
-static void netcste_action_suspend(surf_action_t action)
-{
- ((surf_action_network_Constant_t) action)->suspended = 1;
-}
-
-static void netcste_action_resume(surf_action_t action)
-{
- if (((surf_action_network_Constant_t) action)->suspended)
- ((surf_action_network_Constant_t) action)->suspended = 0;
-}
-
-static int netcste_action_is_suspended(surf_action_t action)
-{
- return ((surf_action_network_Constant_t) action)->suspended;
-}
-
-static void netcste_finalize(surf_model_t network_model)
-{
- surf_model_exit(network_model);
- network_model = NULL;
-}
-
-
-
-void surf_network_model_init_Constant()
-{
- xbt_assert(surf_network_model == NULL);
- if (surf_network_model)
- return;
- surf_network_model = surf_model_init();
-
- surf_network_model->name = "constant time network";
- surf_network_model->action_unref = netcste_action_unref;
- surf_network_model->action_cancel = netcste_action_cancel;
- surf_network_model->action_recycle = net_action_recycle;
- surf_network_model->get_remains = surf_action_get_remains;
-#ifdef HAVE_LATENCY_BOUND_TRACKING
- surf_network_model->get_latency_limited = net_get_link_latency_limited;
-#endif
-
- surf_network_model->model_private->resource_used = netcste_resource_used;
- surf_network_model->model_private->share_resources =
- netcste_share_resources;
- surf_network_model->model_private->update_actions_state =
- netcste_update_actions_state;
- surf_network_model->model_private->update_resource_state =
- netcste_update_resource_state;
- surf_network_model->model_private->finalize = netcste_finalize;
-
- surf_network_model->suspend = netcste_action_suspend;
- surf_network_model->resume = netcste_action_resume;
- surf_network_model->is_suspended = netcste_action_is_suspended;
-
- xbt_assert(surf_cpu_model_pm);
- xbt_assert(surf_cpu_model_vm);
- surf_cpu_model_pm->set_max_duration = surf_action_set_max_duration;
- surf_cpu_model_vm->set_max_duration = surf_action_set_max_duration;
-
- surf_network_model->extension.network.communicate = netcste_communicate;
- surf_network_model->extension.network.get_link_bandwidth =
- netcste_get_link_bandwidth;
- surf_network_model->extension.network.get_link_latency =
- netcste_get_link_latency;
- surf_network_model->extension.network.link_shared = link_shared;
-#ifdef HAVE_TRACING
- surf_network_model->set_category = netcste_action_set_category;
-#endif
-
- netcste_define_callbacks();
- xbt_dynar_push(model_list, &surf_network_model);
-
- routing_model_create(NULL);
-}
