Update workstation handling in SimDag. Change the prefix of SimDag functions with...

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

diff --git a/src/surf/surf.c b/src/surf/surf.c
index 2ff094e..d200a79 100644 (file)
--- a/src/surf/surf.c
+++ b/src/surf/surf.c
@@ -8,9 +8,12 @@
 #include "surf_private.h"
 #include "xbt/module.h"
 
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_global, surf,
-                               "Logging specific to the SURF global module");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
+                               "Logging specific to SURF (kernel)");
 
+typedef struct surf_resource_object {
+  surf_resource_t resource;
+} s_surf_resource_object_t, *surf_resource_object_t;
 
 static double NOW = 0;
 
@@ -18,6 +21,14 @@ xbt_dynar_t resource_list = NULL;
 tmgr_history_t history = NULL;
 lmm_system_t maxmin_system = NULL;
 xbt_dynar_t surf_path = NULL;
+const char *surf_action_state_names[6] = {
+  "SURF_ACTION_READY", 
+  "SURF_ACTION_RUNNING", 
+  "SURF_ACTION_FAILED", 
+  "SURF_ACTION_DONE", 
+  "SURF_ACTION_TO_FREE", 
+  "SURF_ACTION_NOT_IN_THE_SYSTEM"
+};
 
 double generic_maxmin_share_resources(xbt_swag_t running_actions,
                                       size_t offset)
@@ -47,7 +58,7 @@ double generic_maxmin_share_resources2(xbt_swag_t running_actions,
     return -1.0;
 
   if (value > 0) {
-    min = value = action->remains / value;
+    min = action->remains / value;
     if ((action->max_duration >= 0) && (action->max_duration < min))
       min = action->max_duration;
   } else
@@ -89,7 +100,7 @@ e_surf_action_state_t surf_action_get_state(surf_action_t action)
 void surf_action_free(surf_action_t * action)
 {
   (*action)->resource_type->common_public->action_cancel(*action);
-  xbt_free(*action);
+  free(*action);
   *action = NULL;
 }
 
@@ -98,7 +109,7 @@ void surf_action_change_state(surf_action_t action,
 {
   surf_action_state_t action_state =
       &(action->resource_type->common_public->states);
-
+  XBT_IN2("(%p,%s)", action, surf_action_state_names[state]);
   xbt_swag_remove(action, action->state_set);
 
   if (state == SURF_ACTION_READY)
@@ -114,6 +125,7 @@ void surf_action_change_state(surf_action_t action,
 
   if (action->state_set)
     xbt_swag_insert(action, action->state_set);
+  XBT_OUT;
 }
 
 void surf_action_set_data(surf_action_t action,
@@ -162,25 +174,36 @@ FILE *surf_fopen(const char *name, const char *mode)
   int i; 
   char* path = NULL;
   FILE *file = NULL;
+  int path_name_len = 0; /* don't count '\0' */
 
-  xbt_assert1((name!=NULL), "Need a real file name, not \"%s\"\n",name);
+  xbt_assert0(name, "Need a non-NULL file name");
 
   xbt_assert0(surf_path,"surf_init has to be called before using surf_fopen");
-  if(!path_name) path_name=xbt_new0(char,strlen(name)+1);
-
-  xbt_dynar_foreach(surf_path,i,path) {
-    if(strlen(path_name)<strlen(path)+strlen(name)+2) 
-      path_name=xbt_realloc(path_name,strlen(path)+strlen(name)+2);
-    strcpy(path_name, path);
-    strcat(path_name,"/");
-    strcat(path_name,name);
-    file = fopen(path_name,mode);
-    if(file) return file;
+   
+  if (name[0] == '/') { /* don't mess with absolute file names */
+    return fopen(name,mode);
+     
+  } else { /* search relative files in the path */
+   
+    if(!path_name) {
+       path_name_len = strlen(name);
+       path_name=xbt_new0(char,path_name_len+1);
+    }
+
+    xbt_dynar_foreach(surf_path,i,path) {
+      if(path_name_len < strlen(path)+strlen(name)+1) {
+        path_name_len = strlen(path)+strlen(name)+1; /* plus '/' */
+        path_name=xbt_realloc(path_name,path_name_len+1);
+      }
+      sprintf(path_name,"%s/%s",path, name);
+      file = fopen(path_name,mode);
+      if (file) return file;
+    }
   }
   return file;
 }
 
-void surf_finalize(void)
+void surf_exit(void)
 {
   int i;
   surf_resource_t resource = NULL;
@@ -206,9 +229,10 @@ void surf_finalize(void)
   tmgr_finalize();
   surf_parse_lex_destroy();
   if(path_name) {
-    xbt_free(path_name);
+    free(path_name);
     path_name = NULL;
   }
+  xbt_exit();
 }
 
 double surf_solve(void)
@@ -225,6 +249,7 @@ double surf_solve(void)
   int i;
 
   if (first_run) {
+    DEBUG0("First Run! Let's \"purge\" events and put resources in the right state");
     while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
       if (next_event_date > NOW)
        break;
@@ -245,20 +270,27 @@ double surf_solve(void)
 
   min = -1.0;
 
+  DEBUG0("Looking for next action end");
   xbt_dynar_foreach(resource_list, i, resource) {
     resource_next_action_end =
        resource->common_private->share_resources(NOW);
+    DEBUG2("Resource [%s] : next action end = %f",resource->common_public->name,
+          resource_next_action_end);
     if (((min < 0.0) || (resource_next_action_end < min))
        && (resource_next_action_end >= 0.0))
       min = resource_next_action_end;
   }
+  DEBUG1("Next action end : %f", min);
 
   if (min < 0.0)
     return -1.0;
 
+  DEBUG0("Looking for next event");
   while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
+    DEBUG1("Next event : %f",next_event_date);
     if (next_event_date > NOW + min)
       break;
+    DEBUG0("Updating resources");
     while ((event =
            tmgr_history_get_next_event_leq(history, next_event_date,
                                            &value,
@@ -266,6 +298,7 @@ double surf_solve(void)
       if (resource_obj->resource->common_private->
          resource_used(resource_obj)) {
        min = next_event_date - NOW;
+       DEBUG1("This event will modify resource state. Next event set to %f", min);
       }
       /* update state of resource_obj according to new value. Does not touch lmm.
          It will be modified if needed when updating actions */
@@ -274,6 +307,7 @@ double surf_solve(void)
     }
   }
 
+  DEBUG1("Duration set to %f", min);
 
   xbt_dynar_foreach(resource_list, i, resource) {
     resource->common_private->update_actions_state(NOW, min);