CPU can be created and used even though failures are not handled yet. SURF

[simgrid.git] / src / surf / surf.c

diff --git a/src/surf/surf.c b/src/surf/surf.c
index 8783348..ecc3e9e 100644 (file)
--- a/src/surf/surf.c
+++ b/src/surf/surf.c
@@ -4,19 +4,24 @@
    under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include "surf_private.h"
-#include "cpu_private.h"
 
-s_surf_global_t surf_global;
+static xbt_heap_float_t NOW=0;
+
+xbt_dynar_t resource_list = NULL;
+tmgr_history_t history = NULL;
+lmm_system_t maxmin_system = NULL;
 
 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->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;
 }
@@ -30,15 +35,18 @@ void surf_action_free(surf_action_t * action)
 
 void surf_action_change_state(surf_action_t action, e_surf_action_state_t state)
 {
+  surf_action_state_t action_state = &(action->resource_type->states); 
+
   xbt_swag_extract(action, action->state_set);
+
   if(state == SURF_ACTION_READY) 
-    action->state_set = surf_global.ready_action_set;
+    action->state_set = action_state->ready_action_set;
   else if(state == SURF_ACTION_RUNNING)
-    action->state_set = surf_global.running_action_set;
+    action->state_set = action_state->running_action_set;
   else if(state == SURF_ACTION_FAILED)
-    action->state_set = surf_global.failed_action_set;
+    action->state_set = action_state->failed_action_set;
   else if(state == SURF_ACTION_DONE)
-    action->state_set = surf_global.done_action_set;
+    action->state_set = action_state->done_action_set;
   else action->state_set = NULL;
 
   if(action->state_set) xbt_swag_insert(action, action->state_set);
@@ -46,10 +54,46 @@ void surf_action_change_state(surf_action_t action, e_surf_action_state_t state)
 
 void surf_init(void)
 {
-  surf_cpu_resource = surf_cpu_resource_init();
+  if(!resource_list) resource_list = xbt_dynar_new(sizeof(surf_resource_t), NULL);
+  if(!history) history = tmgr_history_new();
+  if(!maxmin_system) maxmin_system = lmm_system_new();
 }
 
-/* xbt_heap_float_t surf_solve(void) */
-/* { */
-/* } */
+xbt_heap_float_t surf_solve(void)
+{
+  xbt_heap_float_t min = -1.0;
+  xbt_heap_float_t next_event_date = -1.0;
+  xbt_heap_float_t resource_next_action_end = -1.0;
+  xbt_maxmin_float_t value = -1.0;
+  surf_resource_t resource = NULL;
+  int i;
+
+  xbt_dynar_foreach (resource_list,i,resource) {
+    resource_next_action_end = resource->share_resources(NOW);
+    if((min<0) || (resource_next_action_end<min)) 
+      min = resource_next_action_end;
+  }
+
+  while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
+    if(next_event_date > NOW+min) break;
+    while (tmgr_history_get_next_event_leq(history, next_event_date,
+                                          &value, (void **) &resource)) {
+      if(surf_cpu_resource->resource.resource_used(resource)) {
+       min = next_event_date-NOW;
+      }
+    }
+  }
 
+  xbt_dynar_foreach (resource_list,i,resource) {
+    resource->update_state(NOW, min);
+  }
+
+  NOW=NOW+min;
+
+  return min;
+}
+
+xbt_heap_float_t surf_get_clock(void)
+{
+  return NOW;
+}