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[simgrid.git] / src / include / surf / surf.h
index 536a63e..5bda063 100644 (file)
@@ -8,8 +8,8 @@
 #define _SURF_SURF_H
 
 #include "xbt/swag.h"
-#include "xbt/heap.h" /* for xbt_heap_float_t only */
-#include "surf/maxmin.h" /* for xbt_maxmin_float_t only  */
+#include "xbt/heap.h"          /* for xbt_heap_float_t only */
+#include "surf/maxmin.h"       /* for xbt_maxmin_float_t only  */
 
 /* Actions and resources are higly connected structures... */
 typedef struct surf_action *surf_action_t;
@@ -19,13 +19,20 @@ typedef struct surf_resource *surf_resource_t;
 /* Action object */
 /*****************/
 typedef enum {
-  SURF_ACTION_READY = 0,               /* Ready        */
-  SURF_ACTION_RUNNING,                 /* Running      */
-  SURF_ACTION_FAILED,                  /* Task Failure */
-  SURF_ACTION_DONE,                    /* Completed    */
-  SURF_ACTION_NOT_IN_THE_SYSTEM                /* Not in the system anymore. Why did you ask ? */
+  SURF_ACTION_READY = 0,       /* Ready        */
+  SURF_ACTION_RUNNING,         /* Running      */
+  SURF_ACTION_FAILED,          /* Task Failure */
+  SURF_ACTION_DONE,            /* Completed    */
+  SURF_ACTION_NOT_IN_THE_SYSTEM        /* Not in the system anymore. Why did you ask ? */
 } e_surf_action_state_t;
 
+typedef struct surf_action_state {
+  xbt_swag_t ready_action_set;
+  xbt_swag_t running_action_set;
+  xbt_swag_t failed_action_set;
+  xbt_swag_t done_action_set;
+} s_surf_action_state_t, *surf_action_state_t;
+
 /* Never create s_surf_action_t by yourself !!!! */
 /* Use action_new from the corresponding resource */
 typedef struct surf_action {
@@ -44,29 +51,31 @@ typedef struct surf_action {
 /***************************/
 /* Generic resource object */
 /***************************/
-typedef struct surf_resource {
-  void (*parse_file)(const char *file);
+
+typedef struct surf_resource_private *surf_resource_private_t;
+typedef struct surf_resource_public {
+  s_surf_action_state_t states; /* Any living action on this resource */
   void *(*name_service)(const char *name);
   const char *(*get_resource_name)(void *resource_id);
-
-  /*   surf_action_t (*action_new)(void *callback);  */
-  /* Not defined here. Actions have to be created by actually
-     performing it and prototype may therefore vary with the resource
-     implementation */
+  int (*resource_used)(void *resource_id);
 
   e_surf_action_state_t (*action_get_state)(surf_action_t action);
-  void (*action_free)(surf_action_t * action); /* Call it when you're done with this action */
-  void (*action_cancel)(surf_action_t action); /* remove the variables from the linear system if needed */
-  void (*action_recycle)(surf_action_t action);        /* More efficient than free/new */
-  void (*action_change_state)(surf_action_t action, e_surf_action_state_t state);
-
-  xbt_heap_float_t (*share_resources)(void); /* Share the resources to the 
-                                               actions and return the potential 
-                                               next action termination */
-  void (*solve)(xbt_heap_float_t date); /* Advance time to "date" and update
-                                          the actions' state*/
+  void (*action_free)(surf_action_t action);
+  void (*action_cancel)(surf_action_t action);
+  void (*action_recycle)(surf_action_t action);        
+  void (*action_change_state)(surf_action_t action,
+                             e_surf_action_state_t state);
+} s_surf_resource_public_t, *surf_resource_public_t;
+
+typedef struct surf_resource {
+  surf_resource_private_t common_private;
+  surf_resource_public_t common_public;
 } s_surf_resource_t;
 
+typedef struct surf_resource_object {
+  surf_resource_t resource;
+} s_surf_resource_object_t, *surf_resource_object_t;
+
 /**************************************/
 /* Implementations of resource object */
 /**************************************/
@@ -76,40 +85,48 @@ typedef enum {
   SURF_CPU_OFF = 0,            /* Running      */
 } e_surf_cpu_state_t;
 
+typedef struct surf_cpu_resource_extension_private *surf_cpu_resource_extension_private_t;
+typedef struct surf_cpu_resource_extension_public {
+  surf_action_t(*execute) (void *cpu, xbt_maxmin_float_t size);
+  surf_action_t(*wait) (void *cpu, xbt_maxmin_float_t size);
+  e_surf_cpu_state_t(*get_state) (void *cpu);
+} s_surf_cpu_resource_extension_public_t, *surf_cpu_resource_extension_public_t;
+
 typedef struct surf_cpu_resource {
-  s_surf_resource_t resource;
-  surf_action_t (*execute)(void *cpu, xbt_maxmin_float_t size);
-  e_surf_cpu_state_t (*get_state)(void *cpu);
+  surf_resource_private_t common_private;
+  surf_resource_public_t common_public;
+/*   surf_cpu_resource_extension_private_t extension_private; */
+  surf_cpu_resource_extension_public_t extension_public;
 } s_surf_cpu_resource_t, *surf_cpu_resource_t;
 extern surf_cpu_resource_t surf_cpu_resource;
+void surf_cpu_resource_init(const char *filename);
 
 /* Network resource */
+typedef struct surf_network_resource_extension_private *surf_network_resource_extension_private_t;
+typedef struct surf_network_resource_extension_public {
+  surf_action_t(*communicate) (void *src, void *dst,
+                              xbt_maxmin_float_t size);
+} s_surf_network_resource_extension_public_t, *surf_network_resource_extension_public_t;
+
 typedef struct surf_network_resource {
-  s_surf_resource_t resource;
-  surf_action_t (*communicate)(void *src, void *dst, xbt_maxmin_float_t size);
-} s_surf_network_resource_t, surf_network_resource_t;
-extern surf_network_resource_t surf_network_resource;
+  surf_resource_private_t common_private;
+  surf_resource_public_t common_public;
+/*   surf_network_resource_extension_private_t extension_private; */
+  surf_network_resource_extension_public_t extension_public;
+} s_surf_network_resource_t, *surf_network_resource_t;
 
-/* Timer resource */
-typedef struct surf_timer_resource {
-  s_surf_resource_t resource;
-  surf_action_t (*wait)(void *cpu, void *dst, xbt_maxmin_float_t size);
-} s_surf_timer_resource_t, surf_timer_resource_t;
-extern surf_timer_resource_t surf_timer_resource;
+extern surf_network_resource_t surf_network_resource;
+void surf_network_resource_init(const char *filename);
 
 /*******************************************/
 /*** SURF Globals **************************/
 /*******************************************/
-typedef struct surf_global {
-  xbt_swag_t ready_action_set;
-  xbt_swag_t running_action_set;
-  xbt_swag_t failed_action_set;
-  xbt_swag_t done_action_set;
-} s_surf_global_t;
-/* The main function */
-extern s_surf_global_t surf_global;
 
-void surf_init(void); /* initialize all resource objects */
-xbt_heap_float_t surf_solve(void); /* returns the next date */
+void surf_init(void);          /* initialize common structures */
+xbt_heap_float_t surf_solve(void);     /*  update all states and returns
+                                          the time elapsed since last
+                                          event */
+xbt_heap_float_t surf_get_clock(void);
+void surf_finalize(void);              /* clean everything */
 
 #endif                         /* _SURF_SURF_H */