--- /dev/null
+/* $Id$ */
+
+/* Copyright (c) 2004 Arnaud Legrand. 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_Vivaldi {
+ s_surf_action_t generic_action;
+ double latency;
+ double lat_init;
+ int suspended;
+} s_surf_action_network_Vivaldi_t, *surf_action_network_Vivaldi_t;
+
+typedef struct s_netviva_coords {
+ double x,y,h;
+} s_netviva_coords_t, *netviva_coords_t;
+xbt_dict_t coords; /* Host name -> coordinates */
+
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
+static random_data_t random_latency = NULL;
+static int host_number_int = 0;
+
+static void netviva_count_hosts(void)
+{
+ host_number_int++;
+}
+
+static void netviva_define_callbacks(const char *file)
+{
+ surfxml_add_callback(STag_surfxml_host_cb_list, &netviva_count_hosts);
+}
+
+static int netviva_resource_used(void *resource_id) {
+ /* nothing to do here */
+ return 0;
+}
+
+static int netviva_action_unref(surf_action_t action)
+{
+ action->refcount--;
+ if (!action->refcount) {
+ xbt_swag_remove(action, action->state_set);
+ free(action);
+ return 1;
+ }
+ return 0;
+}
+
+static void netviva_action_cancel(surf_action_t action)
+{
+ return;
+}
+
+static void netviva_action_recycle(surf_action_t action)
+{
+ return;
+}
+
+static double netviva_action_get_remains(surf_action_t action)
+{
+ return action->remains;
+}
+
+/* look for the next event to finish */
+static double netviva_share_resources(double now)
+{
+ surf_action_network_Vivaldi_t action = NULL;
+ xbt_swag_t running_actions = surf_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 netviva_update_actions_state(double now, double delta) {
+ /* Advance the actions by delta seconds */
+ surf_action_network_Vivaldi_t action = NULL;
+ surf_action_network_Vivaldi_t next_action = NULL;
+ xbt_swag_t running_actions = surf_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) { /* This action is done, inform SURF about it */
+ action->generic_action.finish = surf_get_clock();
+ surf_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();
+ surf_network_model->action_state_set((surf_action_t) action,
+ SURF_ACTION_DONE);
+ }
+ }
+}
+
+static void netviva_update_resource_state(void *id,
+ tmgr_trace_event_t event_type,
+ double value, double time)
+{ /* Called as soon as there is a trace modification */
+ DIE_IMPOSSIBLE;
+}
+
+static surf_action_t netviva_communicate(const char *src_name, const char *dst_name,
+ int src, int dst, double size, double rate)
+{
+ netviva_coords_t c1,c2;
+ c1 = xbt_dict_get(coords,src_name);
+ c2 = xbt_dict_get(coords,dst_name);
+
+ surf_action_network_Vivaldi_t action = NULL;
+
+ action =
+ surf_action_new(sizeof(s_surf_action_network_Vivaldi_t), size,
+ surf_network_model, 0);
+
+ action->suspended = 0;
+
+ action->latency = sqrt((c1->x-c2->x)*(c1->x-c2->x) + (c1->y-c2->y)*(c1->y-c2->y)) + fabs(c1->h)+ fabs(c2->h) ; //random_generate(random_latency);
+ 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);
+ }
+
+ return (surf_action_t) action;
+}
+
+/* returns an array of link_Vivaldi_t */
+static xbt_dynar_t netviva_get_route(void *src, void *dst)
+{
+ xbt_die("Calling this function does not make any sense");
+}
+
+static double netviva_get_link_bandwidth(const void *link)
+{
+ DIE_IMPOSSIBLE;
+}
+
+static double netviva_get_link_latency(const void *link)
+{
+ DIE_IMPOSSIBLE;
+}
+
+static int link_shared(const void *link)
+{
+ DIE_IMPOSSIBLE;
+}
+
+static void netviva_action_suspend(surf_action_t action)
+{
+ ((surf_action_network_Vivaldi_t) action)->suspended = 1;
+}
+
+static void netviva_action_resume(surf_action_t action)
+{
+ if (((surf_action_network_Vivaldi_t) action)->suspended)
+ ((surf_action_network_Vivaldi_t) action)->suspended = 0;
+}
+
+static int netviva_action_is_suspended(surf_action_t action)
+{
+ return ((surf_action_network_Vivaldi_t) action)->suspended;
+}
+
+static void netviva_action_set_max_duration(surf_action_t action, double duration)
+{
+ action->max_duration = duration;
+}
+
+static void netviva_finalize(void)
+{
+ surf_model_exit(surf_network_model);
+ surf_network_model = NULL;
+}
+
+
+static void net_define_callbacks(const char *file)
+{
+ /* Figuring out the network links */
+}
+
+static void netviva_parse_host(void) {
+ netviva_coords_t coord = xbt_new(s_netviva_coords_t,1);
+
+ xbt_dynar_t ctn =xbt_str_split_str(A_surfxml_host_vivaldi," ");
+
+ coord->x = atof(xbt_dynar_get_as(ctn, 0, char*));
+ coord->y = atof(xbt_dynar_get_as(ctn, 1, char*));
+ coord->h = atof(xbt_dynar_get_as(ctn, 2, char*));
+
+ xbt_dynar_free(&ctn);
+ xbt_dict_set(coords, A_surfxml_host_id,coord,NULL);
+}
+
+void surf_network_model_init_Vivaldi(const char *filename)
+{
+ xbt_assert(surf_network_model == NULL);
+ if (surf_network_model)
+ return;
+ surf_network_model = surf_model_init();
+ coords = xbt_dict_new();
+
+ INFO0("Blih");
+ surf_network_model->name = "Vivaldi time network";
+ surf_network_model->action_unref = netviva_action_unref;
+ surf_network_model->action_cancel = netviva_action_cancel;
+ surf_network_model->action_recycle = netviva_action_recycle;
+ surf_network_model->get_remains = netviva_action_get_remains;
+
+ surf_network_model->model_private->resource_used = netviva_resource_used;
+ surf_network_model->model_private->share_resources = netviva_share_resources;
+ surf_network_model->model_private->update_actions_state =
+ netviva_update_actions_state;
+ surf_network_model->model_private->update_resource_state =
+ netviva_update_resource_state;
+ surf_network_model->model_private->finalize = netviva_finalize;
+
+ surf_network_model->suspend = netviva_action_suspend;
+ surf_network_model->resume = netviva_action_resume;
+ surf_network_model->is_suspended = netviva_action_is_suspended;
+ surf_cpu_model->set_max_duration = netviva_action_set_max_duration;
+
+ surf_network_model->extension.network.communicate = netviva_communicate;
+ surf_network_model->extension.network.get_link_bandwidth =
+ netviva_get_link_bandwidth;
+ surf_network_model->extension.network.get_link_latency = netviva_get_link_latency;
+ surf_network_model->extension.network.link_shared = link_shared;
+
+ if (!random_latency)
+ random_latency = random_new(RAND, 100, 0.0, 1.0, .125, .034);
+ netviva_define_callbacks(filename);
+ xbt_dynar_push(model_list, &surf_network_model);
+
+ /* Callbacks settings */
+ surfxml_add_callback(STag_surfxml_host_cb_list, &netviva_parse_host);
+
+ update_model_description(surf_network_model_description,
+ "Vivaldi", surf_network_model);
+
+ xbt_cfg_set_string(_surf_cfg_set, "routing", "none");
+ routing_model_create(sizeof(double), NULL);
+}
+
