src/include/surf/surf.h

   1 /* Authors: Arnaud Legrand                                                  */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4    under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6
   7 #ifndef _SURF_SURF_H
   8 #define _SURF_SURF_H
   9
  10 #include "xbt/swag.h"
  11 #include "xbt/heap.h"           /* for xbt_heap_float_t only */
  12 #include "surf/maxmin.h"        /* for xbt_maxmin_float_t only  */
  13
  14 /* Actions and resources are higly connected structures... */
  15 typedef struct surf_action *surf_action_t;
  16 typedef struct surf_resource *surf_resource_t;
  17
  18 /*****************/
  19 /* Action object */
  20 /*****************/
  21 typedef enum {
  22   SURF_ACTION_READY = 0,        /* Ready        */
  23   SURF_ACTION_RUNNING,          /* Running      */
  24   SURF_ACTION_FAILED,           /* Task Failure */
  25   SURF_ACTION_DONE,             /* Completed    */
  26   SURF_ACTION_NOT_IN_THE_SYSTEM /* Not in the system anymore. Why did you ask ? */
  27 } e_surf_action_state_t;
  28
  29 typedef struct surf_action_state {
  30   xbt_swag_t ready_action_set;
  31   xbt_swag_t running_action_set;
  32   xbt_swag_t failed_action_set;
  33   xbt_swag_t done_action_set;
  34 } s_surf_action_state_t, *surf_action_state_t;
  35
  36 /* Never create s_surf_action_t by yourself !!!! */
  37 /* Use action_new from the corresponding resource */
  38 typedef struct surf_action {
  39   s_xbt_swag_hookup_t state_hookup;
  40   xbt_swag_t state_set;
  41   xbt_maxmin_float_t cost;      /* cost        */
  42   xbt_maxmin_float_t remains;   /* How much of that cost remains to
  43                                  * be done in the currently running task */
  44   xbt_heap_float_t start;       /* start time  */
  45   xbt_heap_float_t finish;      /* finish time : this is modified during the run
  46                                  * and fluctuates until the task is completed */
  47   void *callback;               /* for your convenience */
  48   surf_resource_t resource_type;
  49 } s_surf_action_t;
  50
  51 /***************************/
  52 /* Generic resource object */
  53 /***************************/
  54
  55 typedef struct surf_resource_private *surf_resource_private_t;
  56 typedef struct surf_resource_public {
  57   s_surf_action_state_t states; /* Any living action on this resource */
  58   void *(*name_service)(const char *name);
  59   const char *(*get_resource_name)(void *resource_id);
  60   int (*resource_used)(void *resource_id);
  61
  62   e_surf_action_state_t (*action_get_state)(surf_action_t action);
  63   void (*action_free)(surf_action_t * action);
  64   void (*action_cancel)(surf_action_t action);
  65   void (*action_recycle)(surf_action_t action);
  66   void (*action_change_state)(surf_action_t action,
  67                               e_surf_action_state_t state);
  68 } s_surf_resource_public_t, *surf_resource_public_t;
  69
  70 typedef struct surf_resource {
  71   surf_resource_private_t common_private;
  72   surf_resource_public_t common_public;
  73 } s_surf_resource_t;
  74
  75 typedef struct surf_resource_object {
  76   surf_resource_t resource;
  77 } s_surf_resource_object_t, *surf_resource_object_t;
  78
  79 /**************************************/
  80 /* Implementations of resource object */
  81 /**************************************/
  82 /* Cpu resource */
  83 typedef enum {
  84   SURF_CPU_ON = 1,              /* Ready        */
  85   SURF_CPU_OFF = 0,             /* Running      */
  86 } e_surf_cpu_state_t;
  87
  88 typedef struct surf_cpu_resource_extension_private *surf_cpu_resource_extension_private_t;
  89 typedef struct surf_cpu_resource_extension_public {
  90   surf_action_t(*execute) (void *cpu, xbt_maxmin_float_t size);
  91   surf_action_t(*wait) (void *cpu, xbt_maxmin_float_t size);
  92   e_surf_cpu_state_t(*get_state) (void *cpu);
  93 } s_surf_cpu_resource_extension_public_t, *surf_cpu_resource_extension_public_t;
  94
  95 typedef struct surf_cpu_resource {
  96   surf_resource_private_t common_private;
  97   surf_resource_public_t common_public;
  98 /*   surf_cpu_resource_extension_private_t extension_private; */
  99   surf_cpu_resource_extension_public_t extension_public;
 100 } s_surf_cpu_resource_t, *surf_cpu_resource_t;
 101 extern surf_cpu_resource_t surf_cpu_resource;
 102 void surf_cpu_resource_init(const char *filename);
 103
 104 /* Network resource */
 105 typedef struct surf_network_resource_extension_private *surf_network_resource_extension_private_t;
 106 typedef struct surf_network_resource_extension_public {
 107   surf_action_t(*communicate) (void *src, void *dst,
 108                                xbt_maxmin_float_t size);
 109 } s_surf_network_resource_extension_public_t, *surf_network_resource_extension_public_t;
 110
 111 typedef struct surf_network_resource {
 112   surf_resource_private_t common_private;
 113   surf_resource_public_t common_public;
 114 /*   surf_network_resource_extension_private_t extension_private; */
 115   surf_network_resource_extension_public_t extension_public;
 116 } s_surf_network_resource_t, *surf_network_resource_t;
 117
 118 extern surf_network_resource_t surf_network_resource;
 119 void surf_network_resource_init(const char *filename);
 120
 121 /*******************************************/
 122 /*** SURF Globals **************************/
 123 /*******************************************/
 124
 125 void surf_init(void);           /* initialize common structures */
 126 xbt_heap_float_t surf_solve(void);      /*  update all states and returns
 127                                            the time elapsed since last
 128                                            event */
 129 xbt_heap_float_t surf_get_clock(void);
 130
 131 #endif                          /* _SURF_SURF_H */