X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/358b9ad92c93c8973e14d89159995f591ed0e3f3..12e1d787707bb574c3930f6262a5e751c9a11043:/src/surf/surf.c

diff --git a/src/surf/surf.c b/src/surf/surf.c
index b06113c20b..89b92c3cd2 100644
--- a/src/surf/surf.c
+++ b/src/surf/surf.c
@@ -5,23 +5,126 @@
 /* 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 <ctype.h>
+
 #include "surf_private.h"
 #include "xbt/module.h"
 
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
+				"Logging specific to SURF (kernel)");
+
+int use_sdp_solver=0;
+
+/* Additional declarations for Windows potability. */
+
+#ifndef MAX_DRIVE
+#define MAX_DRIVE 26
+#endif 
+
+#ifdef _WIN32
+#include <windows.h>
+static const char* disk_drives_letter_table[MAX_DRIVE] =
+{
+        "A:\\",
+        "B:\\",
+        "C:\\",
+        "D:\\",
+        "E:\\",
+        "F:\\",
+        "G:\\",
+        "H:\\",
+        "I:\\",
+        "J:\\",
+        "K:\\",
+        "L:\\",
+        "M:\\",
+        "N:\\",
+        "O:\\",
+        "P:\\",
+        "Q:\\",
+        "R:\\",
+        "S:\\",
+        "T:\\",
+        "U:\\",
+        "V:\\",
+        "W:\\",
+        "X:\\",
+        "Y:\\",
+        "Z:\\"
+};
+#endif /* #ifdef _WIN32 */
+
+/*
+ * Returns the initial path. On Windows the initial path is
+ * the current directory for the current process in the other
+ * case the function returns "./" that represents the current
+ * directory on Unix/Linux platforms.
+ */
+			
+const char* __surf_get_initial_path(void)
+{
+
+	#ifdef _WIN32
+	unsigned i;
+	char current_directory[MAX_PATH + 1] = {0};
+	unsigned int len = GetCurrentDirectory(MAX_PATH + 1,current_directory);
+	char root[4] = {0};
+
+	if(!len)
+		return NULL;
+
+	strncpy(root,current_directory,3);
+
+	for(i = 0; i<MAX_DRIVE;i++)
+	{
+		if(toupper(root[0]) == disk_drives_letter_table[i][0])
+			return disk_drives_letter_table[i];
+	}
+
+	return NULL;
+	#else
+	return "./";
+	#endif
+}
+
+/* The __surf_is_absolute_file_path() returns 1 if
+ * file_path is a absolute file path, in the other
+ * case the function returns 0.
+ */
+int __surf_is_absolute_file_path(const char* file_path)
+{
+        #ifdef _WIN32
+        WIN32_FIND_DATA wfd ={0};
+        HANDLE hFile = FindFirstFile(file_path,&wfd);
+
+        if(INVALID_HANDLE_VALUE == hFile)
+                return 0;
+
+        FindClose(hFile);
+        return 1;
+        #else
+        return (file_path[0] == '/');
+        #endif
+}
+
 typedef struct surf_resource_object {
   surf_resource_t resource;
 } s_surf_resource_object_t, *surf_resource_object_t;
 
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_global, surf,
-				"Logging specific to the SURF global module");
-
-
 static double NOW = 0;
 
 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)
@@ -39,7 +142,15 @@ double generic_maxmin_share_resources2(xbt_swag_t running_actions,
   double value = -1;
 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
 
-  lmm_solve(sys);
+  if(!use_sdp_solver)
+    lmm_solve(sys);
+  else {
+#ifdef HAVE_SDP
+    sdp_solve(sys);
+#else
+    xbt_assert0(0, "No CSDP found! You cannot use this model!");
+#endif
+  }
 
   xbt_swag_foreach(action, running_actions) {
     value = lmm_variable_getvalue(VARIABLE(action));
@@ -57,6 +168,7 @@ double generic_maxmin_share_resources2(xbt_swag_t running_actions,
   } else
     min = action->max_duration;
 
+  DEBUG5("Found an action (%p: duration = %f, remains = %f, value = %f) ! %f",action, action->max_duration, action->remains, value, min); 
 
   for (action = xbt_swag_getNext(action, running_actions->offset);
        action;
@@ -64,12 +176,18 @@ double generic_maxmin_share_resources2(xbt_swag_t running_actions,
     value = lmm_variable_getvalue(VARIABLE(action));
     if (value > 0) {
       value = action->remains / value;
-      if (value < min)
+      if (value < min) {
 	min = value;
+	DEBUG2("Updating min (value) with %p: %f",action, min);
+      }
     }
-    if ((action->max_duration >= 0) && (action->max_duration < min))
+    if ((action->max_duration >= 0) && (action->max_duration < min)) {
       min = action->max_duration;
+      DEBUG2("Updating min (duration) with %p: %f",action, min);
+    }
   }
+  DEBUG1("min value : %f",min);
+
 #undef VARIABLE
   return min;
 }
@@ -90,6 +208,14 @@ e_surf_action_state_t surf_action_get_state(surf_action_t action)
   return SURF_ACTION_NOT_IN_THE_SYSTEM;
 }
 
+double surf_action_get_start_time(surf_action_t action) {
+  return action->start;
+}
+
+double surf_action_get_finish_time(surf_action_t action) {
+  return action->finish;
+}
+
 void surf_action_free(surf_action_t * action)
 {
   (*action)->resource_type->common_public->action_cancel(*action);
@@ -102,7 +228,7 @@ 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)
@@ -118,6 +244,7 @@ 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,
@@ -130,10 +257,17 @@ void surf_init(int *argc, char **argv)
 {
   int i,j;
   char *opt;
+  
+  const char* initial_path;
 
   xbt_init(argc, argv);
   if (!surf_path) {
-    const char *initial_path = "./";
+    
+    /* retrieves the current directory of the current process*/
+    initial_path = __surf_get_initial_path();
+		
+	xbt_assert0((initial_path), "__surf_get_initial_path() failed! Can't resolves current Windows directory");
+    
     surf_path = xbt_dynar_new(sizeof(char*), NULL);
     xbt_dynar_push(surf_path,&initial_path);
 
@@ -172,7 +306,7 @@ FILE *surf_fopen(const char *name, const char *mode)
 
   xbt_assert0(surf_path,"surf_init has to be called before using surf_fopen");
    
-  if (name[0] == '/') { /* don't mess with absolute file names */
+  if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
     return fopen(name,mode);
      
   } else { /* search relative files in the path */
@@ -195,7 +329,7 @@ FILE *surf_fopen(const char *name, const char *mode)
   return file;
 }
 
-void surf_finalize(void)
+void surf_exit(void)
 {
   int i;
   surf_resource_t resource = NULL;
@@ -224,6 +358,7 @@ void surf_finalize(void)
     free(path_name);
     path_name = NULL;
   }
+  xbt_exit();
 }
 
 double surf_solve(void)
@@ -240,6 +375,7 @@ 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;
@@ -260,20 +396,27 @@ 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,
@@ -281,6 +424,7 @@ 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 */
@@ -289,13 +433,14 @@ double surf_solve(void)
     }
   }
 
+  DEBUG1("Duration set to %f", min);
+
+  NOW = NOW + min;
 
   xbt_dynar_foreach(resource_list, i, resource) {
     resource->common_private->update_actions_state(NOW, min);
   }
 
-  NOW = NOW + min;
-
   return min;
 }