X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ee788f4511c85f6d6685fdd6692169453e244ce1..06bb605c18bd9a9b704b0415d41ab31e02b49839:/src/surf/surf.c

diff --git a/src/surf/surf.c b/src/surf/surf.c
index bc0667da7e..ce50a00284 100644
--- a/src/surf/surf.c
+++ b/src/surf/surf.c
@@ -1,55 +1,223 @@
-/* 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 "surf_private.h"
-#include "host_private.h"
+#include "xbt/module.h"
+
+static double NOW = 0;
+
+xbt_dynar_t resource_list = NULL;
+tmgr_history_t history = NULL;
+lmm_system_t maxmin_system = NULL;
+
+double generic_maxmin_share_resources(xbt_swag_t running_actions,
+				      size_t offset)
+{
+  surf_action_t action = NULL;
+  double min = -1;
+  double value = -1;
+#define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
 
-s_surf_global_t surf_global;
+  lmm_solve(maxmin_system);
+
+  xbt_swag_foreach(action, running_actions) {
+    value = lmm_variable_getvalue(VARIABLE(action));
+    if ((value > 0) || (action->max_duration >= 0))
+      break;
+  }
+
+  if (!action)
+    return -1.0;
+
+  if (value > 0) {
+    min = value = action->remains / value;
+    if ((action->max_duration >= 0) && (action->max_duration < min))
+      min = action->max_duration;
+  } else
+    min = action->max_duration;
+
+
+  for (action = xbt_swag_getNext(action, running_actions->offset);
+       action;
+       action = xbt_swag_getNext(action, running_actions->offset)) {
+    value = lmm_variable_getvalue(VARIABLE(action));
+    if (value > 0) {
+      value = action->remains / value;
+      if (value < min)
+	min = value;
+    }
+    if ((action->max_duration >= 0) && (action->max_duration < min))
+      min = action->max_duration;
+  }
+#undef VARIABLE
+  return min;
+}
 
 e_surf_action_state_t surf_action_get_state(surf_action_t action)
 {
-  if(action->state_set == surf_global.ready_action_set)
+  surf_action_state_t action_state =
+      &(action->resource_type->common_public->states);
+
+  if (action->state_set == action_state->ready_action_set)
     return SURF_ACTION_READY;
-  if(action->state_set == surf_global.running_action_set)
+  if (action->state_set == action_state->running_action_set)
     return SURF_ACTION_RUNNING;
-  if(action->state_set == surf_global.failed_action_set)
+  if (action->state_set == action_state->failed_action_set)
     return SURF_ACTION_FAILED;
-  if(action->state_set == surf_global.done_action_set)
+  if (action->state_set == action_state->done_action_set)
     return SURF_ACTION_DONE;
   return SURF_ACTION_NOT_IN_THE_SYSTEM;
 }
 
 void surf_action_free(surf_action_t * action)
 {
-  (*action)->resource_type->action_cancel(*action);
+  (*action)->resource_type->common_public->action_cancel(*action);
   xbt_free(*action);
-  *action=NULL;
+  *action = NULL;
 }
 
-void surf_action_change_state(surf_action_t action, e_surf_action_state_t state)
+void surf_action_change_state(surf_action_t action,
+			      e_surf_action_state_t state)
 {
-  xbt_swag_extract(action, action->state_set);
-  if(state == SURF_ACTION_READY) 
-    action->state_set = surf_global.ready_action_set;
-  else if(state == SURF_ACTION_RUNNING)
-    action->state_set = surf_global.running_action_set;
-  else if(state == SURF_ACTION_FAILED)
-    action->state_set = surf_global.failed_action_set;
-  else if(state == SURF_ACTION_DONE)
-    action->state_set = surf_global.done_action_set;
-  else action->state_set = NULL;
+  surf_action_state_t action_state =
+      &(action->resource_type->common_public->states);
+
+  xbt_swag_remove(action, action->state_set);
 
-  if(action->state_set) xbt_swag_insert(action, action->state_set);
+  if (state == SURF_ACTION_READY)
+    action->state_set = action_state->ready_action_set;
+  else if (state == SURF_ACTION_RUNNING)
+    action->state_set = action_state->running_action_set;
+  else if (state == SURF_ACTION_FAILED)
+    action->state_set = action_state->failed_action_set;
+  else if (state == SURF_ACTION_DONE)
+    action->state_set = action_state->done_action_set;
+  else
+    action->state_set = NULL;
+
+  if (action->state_set)
+    xbt_swag_insert(action, action->state_set);
 }
 
-void surf_init(void)
+void surf_action_set_data(surf_action_t action,
+			  void *data)
 {
-  surf_host_resource = surf_host_resource_init();
+  action->data=data;
 }
 
-/* xbt_heap_float_t surf_solve(void) */
-/* { */
-/* } */
+void surf_init(int *argc, char **argv)
+{
+  xbt_init(argc, argv);
+  if (!resource_list)
+    resource_list = xbt_dynar_new(sizeof(surf_resource_private_t), NULL);
+  if (!history)
+    history = tmgr_history_new();
+  if (!maxmin_system)
+    maxmin_system = lmm_system_new();
+}
+
+void surf_finalize(void)
+{
+  int i;
+  surf_resource_t resource = NULL;
+
+  xbt_dynar_foreach(resource_list, i, resource) {
+    resource->common_private->finalize();
+  }
 
+  if (maxmin_system) {
+    lmm_system_free(maxmin_system);
+    maxmin_system = NULL;
+  }
+  if (history) {
+    tmgr_history_free(history);
+    history = NULL;
+  }
+  if (resource_list)
+    xbt_dynar_free(&resource_list);
+
+  tmgr_finalize();
+  surf_parse_lex_destroy();
+}
+
+double surf_solve(void)
+{
+  static int first_run = 1;
+
+  double min = -1.0;
+  double next_event_date = -1.0;
+  double resource_next_action_end = -1.0;
+  double value = -1.0;
+  surf_resource_object_t resource_obj = NULL;
+  surf_resource_t resource = NULL;
+  tmgr_trace_event_t event = NULL;
+  int i;
+
+  if (first_run) {
+    while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
+      if (next_event_date > NOW)
+	break;
+      while ((event =
+	      tmgr_history_get_next_event_leq(history, next_event_date,
+					      &value,
+					      (void **) &resource_obj))) {
+	resource_obj->resource->common_private->
+	    update_resource_state(resource_obj, event, value);
+      }
+    }
+    xbt_dynar_foreach(resource_list, i, resource) {
+      resource->common_private->update_actions_state(NOW, 0.0);
+    }
+    first_run = 0;
+    return 0.0;
+  }
+
+  min = -1.0;
+
+  xbt_dynar_foreach(resource_list, i, resource) {
+    resource_next_action_end =
+	resource->common_private->share_resources(NOW);
+    if (((min < 0.0) || (resource_next_action_end < min))
+	&& (resource_next_action_end >= 0.0))
+      min = resource_next_action_end;
+  }
+
+  if (min < 0.0)
+    return -1.0;
+
+  while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
+    if (next_event_date > NOW + min)
+      break;
+    while ((event =
+	    tmgr_history_get_next_event_leq(history, next_event_date,
+					    &value,
+					    (void **) &resource_obj))) {
+      if (resource_obj->resource->common_private->
+	  resource_used(resource_obj)) {
+	min = next_event_date - NOW;
+      }
+      /* update state of resource_obj according to new value. Does not touch lmm.
+         It will be modified if needed when updating actions */
+      resource_obj->resource->common_private->
+	  update_resource_state(resource_obj, event, value);
+    }
+  }
+
+
+  xbt_dynar_foreach(resource_list, i, resource) {
+    resource->common_private->update_actions_state(NOW, min);
+  }
+
+  NOW = NOW + min;
+
+  return min;
+}
+
+double surf_get_clock(void)
+{
+  return NOW;
+}