X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2728e49797bd42f623228fe493854ceaaefd7082..cf56a22da60094d8e7f14b1457526dc194d40226:/src/surf/network.c

diff --git a/src/surf/network.c b/src/surf/network.c
index dc854770e7..42f6aae03f 100644
--- a/src/surf/network.c
+++ b/src/surf/network.c
@@ -1,73 +1,340 @@
-/* Authors: Arnaud Legrand                                                  */
+/* 	$Id$	 */
+
+/* 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. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include "network_private.h"
-#include "xbt/dict.h"
+#include "xbt/log.h"
 
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network, surf ,"Logging specific to the SURF network module");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
+				"Logging specific to the SURF network module");
 
-surf_network_resource_t surf_network_resource = NULL;
+surf_network_model_t surf_network_model = NULL;
+static lmm_system_t network_maxmin_system = NULL;
+static void (*network_solve) (lmm_system_t) = NULL;
 
-static xbt_dict_t network_set = NULL;
+xbt_dict_t link_set = NULL;
+xbt_dict_t network_card_set = NULL;
 
+int card_number = 0;
+int host_number = 0;
+link_CM02_t **routing_table = NULL;
+int *routing_table_size = NULL;
+static link_CM02_t loopback = NULL;
 
-static void *route_new(const char *src, const char* dst)
+static void create_routing_table(void)
 {
-  return NULL;
+  routing_table =
+      xbt_new0(link_CM02_t *, /*card_number * card_number */ host_number * host_number);
+  routing_table_size = xbt_new0(int, /*card_number * card_number*/ host_number * host_number);
 }
 
-/*  
-   Semantic:  name       scale     initial     power     initial     state
-                                    power      trace      state      trace
-   
-   Token:   TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD
-   Type:     string      float      float      string     ON/OFF     string
-*/
+static void link_free(void *nw_link)
+{
+  free(((link_CM02_t) nw_link)->name);
+  free(nw_link);
+}
 
-static void parse_route(void)
+static link_CM02_t link_new(char *name,
+			    double bw_initial,
+			    tmgr_trace_t bw_trace,
+			    double lat_initial,
+			    tmgr_trace_t lat_trace,
+			    e_surf_link_state_t
+			    state_initial,
+			    tmgr_trace_t state_trace,
+			    e_surf_link_sharing_policy_t
+			    policy, xbt_dict_t properties)
 {
-  route_new(NULL,NULL);
+  link_CM02_t nw_link = xbt_new0(s_link_CM02_t, 1);
+  xbt_assert1(!xbt_dict_get_or_null(link_set, name), 
+	      "Link '%s' declared several times in the platform file.", name);   
+
+  nw_link->model = (surf_model_t) surf_network_model;
+  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(network_maxmin_system, nw_link,
+			 nw_link->bw_current);
+
+  if (policy == SURF_LINK_FATPIPE)
+    lmm_constraint_shared(nw_link->constraint);
+
+  nw_link->properties = properties;
+
+  current_property_set = properties;
+
+  xbt_dict_set(link_set, name, nw_link, link_free);
+
+  return nw_link;
 }
 
-static void parse_file(const char *file)
+static void network_card_free(void *nw_card)
 {
-  e_surf_token_t token;
+  free(((network_card_CM02_t) nw_card)->name);
+  free(nw_card);
+}
 
-  find_section(file,"NETWORK");
+static int network_card_new(const char *card_name)
+{
+  network_card_CM02_t card =
+      xbt_dict_get_or_null(network_card_set, card_name);
+
+  if (!card) {
+    card = xbt_new0(s_network_card_CM02_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;
+}
 
-  while(1) {
-    token=surf_parse();
+static void route_new(int src_id, int dst_id,
+		      link_CM02_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(link_CM02_t) * nb_link);
+}
 
-    if(token==TOKEN_END_SECTION) break;
-    if(token==TOKEN_NEWLINE) continue;
-    
-    if(token==TOKEN_WORD) parse_route();
-    else {CRITICAL1("Parse error line %d\n",line_pos);xbt_abort();}
+static void parse_link_init(void)
+{
+  char *name_link;
+  double bw_initial;
+  tmgr_trace_t bw_trace;
+  double lat_initial;
+  tmgr_trace_t lat_trace;
+  e_surf_link_state_t state_initial_link = SURF_LINK_ON;
+  e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
+  tmgr_trace_t state_trace;
+
+  name_link = xbt_strdup(A_surfxml_link_id);
+  surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
+  surf_parse_get_trace(&bw_trace, A_surfxml_link_bandwidth_file);
+  surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
+  surf_parse_get_trace(&lat_trace, A_surfxml_link_latency_file);
+
+  xbt_assert0((A_surfxml_link_state ==
+	       A_surfxml_link_state_ON)
+	      || (A_surfxml_link_state ==
+		  A_surfxml_link_state_OFF), "Invalid state");
+  if (A_surfxml_link_state == A_surfxml_link_state_ON)
+    state_initial_link = SURF_LINK_ON;
+  else if (A_surfxml_link_state ==
+	   A_surfxml_link_state_OFF)
+    state_initial_link = SURF_LINK_OFF;
+
+  if (A_surfxml_link_sharing_policy ==
+      A_surfxml_link_sharing_policy_SHARED)
+    policy_initial_link = SURF_LINK_SHARED;
+  else if (A_surfxml_link_sharing_policy ==
+	   A_surfxml_link_sharing_policy_FATPIPE)
+    policy_initial_link = SURF_LINK_FATPIPE;
+
+  surf_parse_get_trace(&state_trace, A_surfxml_link_state_file);
+
+  link_new(name_link, bw_initial, bw_trace,
+		   lat_initial, lat_trace, state_initial_link, state_trace,
+		   policy_initial_link, xbt_dict_new());
+
+}
+
+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);
+  route_action = A_surfxml_route_action;
+  route_link_list = xbt_dynar_new(sizeof(char *), &free_string);
+}
+
+static void parse_route_set_route(void)
+{
+  char *name;
+  if (src_id != -1 && dst_id != -1) {
+    name = bprintf("%x#%x",src_id, dst_id);
+    manage_route(route_table, name, route_action, 0);
+    free(name);    
   }
+}
+
+static void add_loopback(void)
+{
+  int i;
+  /* Adding loopback if needed */
+  for (i = 0; i < host_number; i++)
+    if (!ROUTE_SIZE(i, i)) {
+      if (!loopback)
+	loopback = link_new(xbt_strdup("__MSG_loopback__"),
+				    498000000, NULL, 0.000015, NULL,
+				    SURF_LINK_ON, NULL,
+				    SURF_LINK_FATPIPE,NULL);
+      ROUTE_SIZE(i, i) = 1;
+      ROUTE(i, i) = xbt_new0(link_CM02_t, 1);
+      ROUTE(i, i)[0] = loopback;
+    }
+}
+
+static void add_route(void)
+{
+  xbt_ex_t e;
+  int nb_link = 0;
+  unsigned int cpt = 0;    
+  int link_list_capacity = 0;
+  link_CM02_t *link_list = NULL;
+  xbt_dict_cursor_t cursor = NULL;
+  char *key,*data, *end;
+  const char *sep = "#";
+  xbt_dynar_t links, keys;
+
+  if (routing_table == NULL) create_routing_table();
+
+  xbt_dict_foreach(route_table, cursor, key, data) {
+	  char* link = NULL;
+    nb_link = 0;
+    links = (xbt_dynar_t)data;
+    keys = xbt_str_split_str(key, sep);
+
+    link_list_capacity = xbt_dynar_length(links);
+    link_list = xbt_new(link_CM02_t, link_list_capacity);
+
+    src_id = strtol(xbt_dynar_get_as(keys, 0, char*), &end, 16);
+    dst_id = strtol(xbt_dynar_get_as(keys, 1, char*), &end, 16);
+ 
+    
+    xbt_dynar_foreach (links, cpt, link) {
+      TRY {
+	link_list[nb_link++] = xbt_dict_get(link_set, link);
+      }
+      CATCH(e) {
+        RETHROW1("Link %s not found (dict raised this exception: %s)", link);
+      }     
+    }
+    route_new(src_id, dst_id, link_list, nb_link);
+   }
+
+   xbt_dict_free(&route_table);
+
+}
 
-  close_section("NETWORK");  
+static void count_hosts(void)
+{
+   host_number++;
+}
+
+static int called = 0;
+
+static void add_traces(void)
+{
+   xbt_dynar_t trace_connect = NULL;
+   unsigned int cpt;
+   int connect_element, connect_kind;
+   char *value, *trace_id, *connector_id;
+   link_CM02_t link;
+   tmgr_trace_t trace;
+   
+   if (called) return;
+   called = 1;
+
+   /*for all trace connects parse them and update traces for hosts or links */
+   xbt_dynar_foreach (traces_connect_list, cpt, value) {
+     trace_connect = xbt_str_split_str(value, "#");
+     trace_id        = xbt_dynar_get_as(trace_connect, 0, char*);
+     connect_element = atoi(xbt_dynar_get_as(trace_connect, 1, char*)); 
+     connect_kind    = atoi(xbt_dynar_get_as(trace_connect, 2, char*));
+     connector_id    = xbt_dynar_get_as(trace_connect, 3, char*);
+
+     xbt_assert1((trace = xbt_dict_get_or_null(traces_set_list, trace_id)), "Trace %s undefined", trace_id);
+
+     if (connect_element == A_surfxml_trace_c_connect_element_LINK) {
+        xbt_assert1((link = xbt_dict_get_or_null(link_set, connector_id)), "Link %s undefined", connector_id);
+        switch (connect_kind) {
+           case A_surfxml_trace_c_connect_kind_AVAILABILITY: link->state_event = tmgr_history_add_trace(history, trace, 0.0, 0, link); break;
+           case A_surfxml_trace_c_connect_kind_BANDWIDTH: link->bw_event = tmgr_history_add_trace(history, trace, 0.0, 0, link); break;
+           case A_surfxml_trace_c_connect_kind_LATENCY: link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link); break;
+        }
+     }
+   }
+
+   xbt_dynar_free(&trace_connect);
+   xbt_dynar_free(&traces_connect_list);
+   xbt_dict_free(&traces_set_list); 
+}
+
+static void define_callbacks(const char *file)
+{
+  /* Figuring out the network links */
+  surfxml_add_callback(STag_surfxml_host_cb_list, &count_hosts);
+  surfxml_add_callback(STag_surfxml_link_cb_list, &parse_link_init);
+  surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties);
+  surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
+  surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &parse_route_elem);
+  surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_route_set_route);
+  surfxml_add_callback(STag_surfxml_platform_cb_list, &init_data);
+  surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_route);
+  surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_loopback);
+  surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_traces);
+  surfxml_add_callback(STag_surfxml_set_cb_list, &parse_sets);
+  surfxml_add_callback(STag_surfxml_route_c_multi_cb_list, &parse_route_multi_set_endpoints);
+  surfxml_add_callback(ETag_surfxml_route_c_multi_cb_list, &parse_route_multi_set_route);
+  surfxml_add_callback(STag_surfxml_foreach_cb_list, &parse_foreach);
+  surfxml_add_callback(STag_surfxml_cluster_cb_list, &parse_cluster);
+  surfxml_add_callback(STag_surfxml_trace_cb_list, &parse_trace_init);
+  surfxml_add_callback(ETag_surfxml_trace_cb_list, &parse_trace_finalize);
+  surfxml_add_callback(STag_surfxml_trace_c_connect_cb_list, &parse_trace_c_connect);
 }
 
 static void *name_service(const char *name)
 {
-  return NULL;
+  network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
+  return card;
 }
 
 static const char *get_resource_name(void *resource_id)
 {
-  return NULL;
+  return ((network_card_CM02_t) resource_id)->name;
 }
 
 static int resource_used(void *resource_id)
 {
+  return lmm_constraint_used(network_maxmin_system,
+			     ((link_CM02_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_CM02_t) action)->variable)
+      lmm_variable_free(network_maxmin_system,
+			((surf_action_network_CM02_t) action)->variable);
+    free(action);
+    return 1;
+  }
   return 0;
 }
 
-static void action_free(surf_action_t action)
+static void action_use(surf_action_t action)
 {
-  return;
+  action->using++;
 }
 
 static void action_cancel(surf_action_t action)
@@ -80,82 +347,484 @@ static void action_recycle(surf_action_t action)
   return;
 }
 
-static void action_change_state(surf_action_t action, e_surf_action_state_t state)
+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_CM02_t)action)->variable) { */
+/*       lmm_variable_disable(network_maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
+/*       ((surf_action_network_CM02_t)action)->variable = NULL; */
+/*     } */
+
+  surf_action_change_state(action, state);
   return;
 }
 
-static xbt_heap_float_t share_resources(xbt_heap_float_t now)
+static double share_resources(double now)
 {
-  return -1.0;
+  s_surf_action_network_CM02_t s_action;
+  surf_action_network_CM02_t action = NULL;
+  xbt_swag_t running_actions =
+      surf_network_model->common_public->states.running_action_set;
+  double min;
+
+  min = generic_maxmin_share_resources(running_actions,
+				       xbt_swag_offset(s_action,
+						       variable),
+				       network_maxmin_system,
+				       network_solve);
+
+  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 update_actions_state(xbt_heap_float_t now,
-				 xbt_heap_float_t delta)
+static void update_actions_state(double now, double delta)
 {
+  double deltap = 0.0;
+  surf_action_network_CM02_t action = NULL;
+  surf_action_network_CM02_t next_action = NULL;
+  xbt_swag_t running_actions =
+      surf_network_model->common_public->states.running_action_set;
+  /*
+     xbt_swag_t failed_actions =
+     surf_network_model->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(network_maxmin_system, action->variable,
+				   action->lat_current);
+    }
+    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) &&
+	(lmm_get_variable_weight(action->variable) > 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 model has failed */
+      lmm_constraint_t cnst = NULL;
+      int i = 0;
+      link_CM02_t nw_link = NULL;
+
+      while ((cnst =
+	      lmm_get_cnst_from_var(network_maxmin_system,
+				    action->variable, i++))) {
+	nw_link = lmm_constraint_id(cnst);
+	if (nw_link->state_current == SURF_LINK_OFF) {
+	  action->generic_action.finish = surf_get_clock();
+	  action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
+	  break;
+	}
+      }
+    }
+  }
+
   return;
 }
 
 static void update_resource_state(void *id,
-				  tmgr_trace_event_t event_type, 
-				  xbt_maxmin_float_t value)
+				  tmgr_trace_event_t event_type,
+				  double value)
 {
+  link_CM02_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(network_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_CM02_t action = NULL;
+
+    nw_link->lat_current = value;
+    while (lmm_get_var_from_cnst
+	   (network_maxmin_system, nw_link->constraint, &var)) {
+      action = lmm_variable_id(var);
+      action->lat_current += delta;
+      if (action->rate < 0)
+	lmm_update_variable_bound(network_maxmin_system, action->variable,
+				  SG_TCP_CTE_GAMMA / (2.0 *
+						      action->
+						      lat_current));
+      else
+	lmm_update_variable_bound(network_maxmin_system, action->variable,
+				  min(action->rate,
+				      SG_TCP_CTE_GAMMA / (2.0 *
+							  action->
+							  lat_current)));
+      if (!(action->suspended))
+	lmm_update_variable_weight(network_maxmin_system, action->variable,
+				   action->lat_current);
+      lmm_update_variable_latency(network_maxmin_system, action->variable,
+				  delta);
+    }
+  } else if (event_type == nw_link->state_event) {
+    if (value > 0)
+      nw_link->state_current = SURF_LINK_ON;
+    else
+      nw_link->state_current = SURF_LINK_OFF;
+  } else {
+    CRITICAL0("Unknown event ! \n");
+    xbt_abort();
+  }
+
   return;
 }
 
-static surf_action_t communicate(void *src, void *dst, xbt_maxmin_float_t size)
+static surf_action_t communicate(void *src, void *dst, double size,
+				 double rate)
+{
+  surf_action_network_CM02_t action = NULL;
+  network_card_CM02_t card_src = src;
+  network_card_CM02_t card_dst = dst;
+  int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
+  link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
+  int i;
+
+  XBT_IN4("(%s,%s,%g,%g)", card_src->name, card_dst->name, size, rate);
+  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_CM02_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 = surf_get_clock();
+  action->generic_action.finish = -1.0;
+  action->generic_action.model_type =
+      (surf_model_t) surf_network_model;
+  action->suspended = 0;	/* Should be useless because of the 
+				   calloc but it seems to help valgrind... */
+  action->generic_action.state_set =
+      surf_network_model->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(network_maxmin_system, action, 0.0, -1.0,
+			 route_size);
+  else
+    action->variable =
+	lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
+			 route_size);
+
+  if (action->rate < 0) {
+    if (action->lat_current > 0)
+      lmm_update_variable_bound(network_maxmin_system, action->variable,
+				SG_TCP_CTE_GAMMA / (2.0 *
+						    action->lat_current));
+    else
+      lmm_update_variable_bound(network_maxmin_system, action->variable,
+				-1.0);
+  } else {
+    if (action->lat_current > 0)
+      lmm_update_variable_bound(network_maxmin_system, action->variable,
+				min(action->rate,
+				    SG_TCP_CTE_GAMMA / (2.0 *
+							action->
+							lat_current)));
+    else
+      lmm_update_variable_bound(network_maxmin_system, action->variable,
+				action->rate);
+  }
+  lmm_update_variable_latency(network_maxmin_system, action->variable,
+			      action->latency);
+
+  for (i = 0; i < route_size; i++)
+    lmm_expand(network_maxmin_system, route[i]->constraint,
+	       action->variable, 1.0);
+  XBT_OUT;
+
+  return (surf_action_t) action;
+}
+
+/* returns an array of link_CM02_t */
+static const void **get_route(void *src, void *dst)
 {
-  return NULL;
+  network_card_CM02_t card_src = src;
+  network_card_CM02_t card_dst = dst;
+  return (const void **) ROUTE(card_src->id, card_dst->id);
 }
 
-static void finalize(void)
+static int get_route_size(void *src, void *dst)
 {
+  network_card_CM02_t card_src = src;
+  network_card_CM02_t card_dst = dst;
+  return ROUTE_SIZE(card_src->id, card_dst->id);
 }
 
-static void surf_network_resource_init_internal(void)
+static const char *get_link_name(const void *link)
 {
-  s_surf_action_t action;
+  return ((link_CM02_t) link)->name;
+}
+
+static double get_link_bandwidth(const void *link)
+{
+  return ((link_CM02_t) link)->bw_current;
+}
+
+static double get_link_latency(const void *link)
+{
+  return ((link_CM02_t) link)->lat_current;
+}
+
+static xbt_dict_t get_properties(void *link)
+{
+ return ((link_CM02_t) link)->properties;
+}
+
+static void action_suspend(surf_action_t action)
+{
+  ((surf_action_network_CM02_t) action)->suspended = 1;
+  lmm_update_variable_weight(network_maxmin_system,
+			     ((surf_action_network_CM02_t) action)->
+			     variable, 0.0);
+}
 
-  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_private = xbt_new0(s_surf_network_resource_extension_private_t,1); */
-  surf_network_resource->extension_public = xbt_new0(s_surf_network_resource_extension_public_t,1);
+static void action_resume(surf_action_t action)
+{
+  if (((surf_action_network_CM02_t) action)->suspended) {
+    lmm_update_variable_weight(network_maxmin_system,
+			       ((surf_action_network_CM02_t) action)->
+			       variable,
+			       ((surf_action_network_CM02_t) action)->
+			       lat_current);
+    ((surf_action_network_CM02_t) action)->suspended = 0;
+  }
+}
 
-  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));
+static int action_is_suspended(surf_action_t action)
+{
+  return ((surf_action_network_CM02_t) action)->suspended;
+}
 
-  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->resource_used = resource_used;
-  surf_network_resource->common_public->action_get_state=surf_action_get_state;
-  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;
+static void action_set_max_duration(surf_action_t action, double duration)
+{
+  action->max_duration = duration;
+}
 
-  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;
+static void finalize(void)
+{
+  int i, j;
+
+  xbt_dict_free(&network_card_set);
+  xbt_dict_free(&link_set);
+  xbt_swag_free(surf_network_model->common_public->states.
+		ready_action_set);
+  xbt_swag_free(surf_network_model->common_public->states.
+		running_action_set);
+  xbt_swag_free(surf_network_model->common_public->states.
+		failed_action_set);
+  xbt_swag_free(surf_network_model->common_public->states.
+		done_action_set);
+  free(surf_network_model->common_public);
+  free(surf_network_model->common_private);
+  free(surf_network_model->extension_public);
+
+  free(surf_network_model);
+  surf_network_model = NULL;
+
+  loopback = 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;
+}
 
-  surf_network_resource->extension_public->communicate = communicate;
+static void surf_network_model_init_internal(void)
+{
+  s_surf_action_t action;
+
+  surf_network_model = xbt_new0(s_surf_network_model_t, 1);
+
+  surf_network_model->common_private =
+      xbt_new0(s_surf_model_private_t, 1);
+  surf_network_model->common_public =
+      xbt_new0(s_surf_model_public_t, 1);
+  surf_network_model->extension_public =
+      xbt_new0(s_surf_network_model_extension_public_t, 1);
+
+  surf_network_model->common_public->states.ready_action_set =
+      xbt_swag_new(xbt_swag_offset(action, state_hookup));
+  surf_network_model->common_public->states.running_action_set =
+      xbt_swag_new(xbt_swag_offset(action, state_hookup));
+  surf_network_model->common_public->states.failed_action_set =
+      xbt_swag_new(xbt_swag_offset(action, state_hookup));
+  surf_network_model->common_public->states.done_action_set =
+      xbt_swag_new(xbt_swag_offset(action, state_hookup));
+
+  surf_network_model->common_public->name_service = name_service;
+  surf_network_model->common_public->get_resource_name =
+      get_resource_name;
+  surf_network_model->common_public->action_get_state =
+      surf_action_get_state;
+  surf_network_model->common_public->action_get_start_time =
+      surf_action_get_start_time;
+  surf_network_model->common_public->action_get_finish_time =
+      surf_action_get_finish_time;
+  surf_network_model->common_public->action_free = action_free;
+  surf_network_model->common_public->action_use = action_use;
+  surf_network_model->common_public->action_cancel = action_cancel;
+  surf_network_model->common_public->action_recycle = action_recycle;
+  surf_network_model->common_public->action_change_state =
+      action_change_state;
+  surf_network_model->common_public->action_set_data =
+      surf_action_set_data;
+  surf_network_model->common_public->name = "network";
+
+  surf_network_model->common_private->resource_used = resource_used;
+  surf_network_model->common_private->share_resources = share_resources;
+  surf_network_model->common_private->update_actions_state =
+      update_actions_state;
+  surf_network_model->common_private->update_resource_state =
+      update_resource_state;
+  surf_network_model->common_private->finalize = finalize;
+
+  surf_network_model->common_public->suspend = action_suspend;
+  surf_network_model->common_public->resume = action_resume;
+  surf_network_model->common_public->is_suspended = action_is_suspended;
+  surf_cpu_model->common_public->set_max_duration =
+      action_set_max_duration;
+
+  surf_network_model->extension_public->communicate = communicate;
+  surf_network_model->extension_public->get_route = get_route;
+  surf_network_model->extension_public->get_route_size = get_route_size;
+  surf_network_model->extension_public->get_link_name = get_link_name;
+  surf_network_model->extension_public->get_link_bandwidth =
+      get_link_bandwidth;
+  surf_network_model->extension_public->get_link_latency =
+      get_link_latency;
+
+  surf_network_model->common_public->get_properties =  get_properties;
+
+  link_set = xbt_dict_new();
+  network_card_set = xbt_dict_new();
+
+  if (!network_maxmin_system)
+    network_maxmin_system = lmm_system_new();
+}
 
-  network_set = xbt_dict_new();
+/***************************************************************************/
+/* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
+/***************************************************************************/
+/* @TechReport{      rr-lip2002-40, */
+/*   author        = {Henri Casanova and Loris Marchal}, */
+/*   institution   = {LIP}, */
+/*   title         = {A Network Model for Simulation of Grid Application}, */
+/*   number        = {2002-40}, */
+/*   month         = {oct}, */
+/*   year          = {2002} */
+/* } */
+void surf_network_model_init_CM02(const char *filename)
+{
 
-  xbt_assert0(maxmin_system,"surf_init has to be called first!");
+  if (surf_network_model)
+    return;
+  surf_network_model_init_internal();
+  define_callbacks(filename);
+  xbt_dynar_push(model_list, &surf_network_model);
+  network_solve = lmm_solve;
+
+  update_model_description(surf_network_model_description,
+			      surf_network_model_description_size,
+			      "CM02",
+			      (surf_model_t) surf_network_model);
+}
+
+void surf_network_model_init_Reno(const char *filename)
+{
+  if (surf_network_model)
+    return;
+  surf_network_model_init_internal();
+  define_callbacks(filename);
+
+  xbt_dynar_push(model_list, &surf_network_model);
+  lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
+				    func_reno_fpi);
+  network_solve = lagrange_solve;
+
+  update_model_description(surf_network_model_description,
+			      surf_network_model_description_size,
+			      "Reno",
+			      (surf_model_t) surf_network_model);
+}
+
+void surf_network_model_init_Vegas(const char *filename)
+{
+  if (surf_network_model)
+    return;
+  surf_network_model_init_internal();
+  define_callbacks(filename);
+
+  xbt_dynar_push(model_list, &surf_network_model);
+  lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
+				    func_vegas_fpi);
+  network_solve = lagrange_solve;
+
+  update_model_description(surf_network_model_description,
+			      surf_network_model_description_size,
+			      "Vegas",
+			      (surf_model_t) surf_network_model);
 }
 
-void surf_network_resource_init(const char* filename)
+#ifdef HAVE_SDP
+void surf_network_model_init_SDP(const char *filename)
 {
-  surf_network_resource_init_internal();
-  parse_file(filename);
-  xbt_dynar_push(resource_list, &surf_network_resource);
+  if (surf_network_model)
+    return;
+  surf_network_model_init_internal();
+  define_callbacks(filename);
+
+  xbt_dynar_push(model_list, &surf_network_model);
+  network_solve = sdp_solve;
+
+  update_model_description(surf_network_model_description,
+			      surf_network_model_description_size,
+			      "SDP",
+			      (surf_model_t) surf_network_model);
 }
+#endif