src/simix/smx_new_api.c

   1 /* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 /* ****************************************************************************************** */
   8 /* TUTORIAL: New API                                                                        */
   9 /* ****************************************************************************************** */
  10 #include "smx_private.h"
  11 #include "xbt/sysdep.h"
  12 #include "xbt/log.h"
  13 #include "xbt/dict.h"
  14 #include "mc/mc.h"
  15
  16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_new_api, simix,
  17                                 "Logging specific to SIMIX (new_api)");
  18
  19
  20 //SIMIX NEW MODEL INIT
  21 void SIMIX_pre_new_api_fct(smx_simcall_t simcall)
  22 {
  23   smx_action_t action = SIMIX_new_api_fct(simcall->issuer,
  24       simcall->new_api.param1,
  25       simcall->new_api.param2);
  26   xbt_fifo_push(action->simcalls, simcall);
  27   simcall->issuer->waiting_action = action;
  28 }
  29
  30 void SIMIX_post_new_api(smx_action_t action)
  31 {
  32   xbt_fifo_item_t i;
  33   smx_simcall_t simcall;
  34
  35   xbt_fifo_foreach(action->simcalls,i,simcall,smx_simcall_t) {
  36     switch (simcall->call) {
  37     case SIMCALL_NEW_API_INIT:
  38       simcall->new_api.result = 0;
  39       break;
  40
  41     default:
  42       break;
  43     }
  44   }
  45
  46   switch (surf_workstation_model->action_state_get(action->new_api.surf_new_api)) {
  47
  48     case SURF_ACTION_FAILED:
  49       action->state = SIMIX_FAILED;
  50       break;
  51
  52     case SURF_ACTION_DONE:
  53       action->state = SIMIX_DONE;
  54       break;
  55
  56     default:
  57       THROW_IMPOSSIBLE;
  58       break;
  59   }
  60
  61   SIMIX_new_api_finish(action);
  62 }
  63
  64 smx_action_t SIMIX_new_api_fct(smx_process_t process, const char* param1, double param2)
  65 {
  66   smx_action_t action;
  67   smx_host_t host = process->smx_host;
  68
  69   /* check if the host is active */
  70   if (surf_workstation_model->extension.
  71       workstation.get_state(host->host) != SURF_RESOURCE_ON) {
  72     THROWF(host_error, 0, "Host %s failed, you cannot call this function",
  73            host->name);
  74   }
  75
  76   action = xbt_mallocator_get(simix_global->action_mallocator);
  77   action->type = SIMIX_ACTION_NEW_API;
  78   action->name = NULL;
  79 #ifdef HAVE_TRACING
  80   action->category = NULL;
  81 #endif
  82
  83   // Called the function from the new model
  84   action->new_api.surf_new_api = surf_workstation_model->extension.new_model.fct();
  85
  86   surf_workstation_model->action_data_set(action->new_api.surf_new_api, action);
  87   XBT_DEBUG("Create NEW MODEL action %p", action);
  88
  89   return action;
  90 }
  91
  92 void SIMIX_new_api_destroy(smx_action_t action)
  93 {
  94   XBT_DEBUG("Destroy action %p", action);
  95   if (action->new_api.surf_new_api)
  96     action->new_api.surf_new_api->model_type->action_unref(action->new_api.surf_new_api);
  97   xbt_mallocator_release(simix_global->action_mallocator, action);
  98 }
  99
 100 void SIMIX_new_api_finish(smx_action_t action)
 101 {
 102   xbt_fifo_item_t item;
 103   smx_simcall_t simcall;
 104
 105   xbt_fifo_foreach(action->simcalls, item, simcall, smx_simcall_t) {
 106
 107     switch (action->state) {
 108
 109       case SIMIX_DONE:
 110         /* do nothing, action done */
 111         break;
 112
 113       case SIMIX_FAILED:
 114         SMX_EXCEPTION(simcall->issuer, io_error, 0, "IO failed");
 115         break;
 116
 117       case SIMIX_CANCELED:
 118         SMX_EXCEPTION(simcall->issuer, cancel_error, 0, "Canceled");
 119         break;
 120
 121       default:
 122         xbt_die("Internal error in SIMIX_NEW_MODEL_finish: unexpected action state %d",
 123             (int)action->state);
 124     }
 125
 126     if (surf_workstation_model->extension.
 127         workstation.get_state(simcall->issuer->smx_host->host) != SURF_RESOURCE_ON) {
 128       simcall->issuer->context->iwannadie = 1;
 129     }
 130
 131     simcall->issuer->waiting_action = NULL;
 132     SIMIX_simcall_answer(simcall);
 133   }
 134
 135   /* We no longer need it */
 136   SIMIX_new_api_destroy(action);
 137 }