+ return host->data;
+}
+
+void SIMIX_host_set_data(smx_host_t host, void *data)
+{
+ xbt_assert0((host != NULL), "Invalid parameters");
+ xbt_assert0((host->data == NULL), "Data already set");
+
+ host->data = data;
+}
+
+smx_action_t SIMIX_host_execute(const char *name, smx_host_t host,
+ double computation_amount,
+ double priority)
+{
+ /* alloc structures and initialize */
+ smx_action_t action = xbt_new0(s_smx_action_t, 1);
+ action->type = SIMIX_ACTION_EXECUTE;
+ action->name = xbt_strdup(name);
+ action->request_list = xbt_fifo_new();
+ action->state = SIMIX_RUNNING;
+ action->execution.host = host;
+
+#ifdef HAVE_TRACING
+ action->category = NULL;
+#endif
+
+ /* set surf's action */
+ if (!MC_IS_ENABLED) {
+ action->execution.surf_exec =
+ surf_workstation_model->extension.workstation.execute(host->host,
+ computation_amount);
+ surf_workstation_model->action_data_set(action->execution.surf_exec, action);
+ surf_workstation_model->set_priority(action->execution.surf_exec, priority);
+ }
+
+#ifdef HAVE_TRACING
+ TRACE_smx_host_execute(action);
+#endif
+
+ DEBUG1("Create execute action %p", action);
+
+ return action;
+}
+
+smx_action_t SIMIX_host_parallel_execute( const char *name,
+ int host_nb, smx_host_t *host_list,
+ double *computation_amount, double *communication_amount,
+ double amount, double rate)
+{
+ void **workstation_list = NULL;
+ int i;
+
+ /* alloc structures and initialize */
+ smx_action_t action = xbt_new0(s_smx_action_t, 1);
+ action->type = SIMIX_ACTION_PARALLEL_EXECUTE;
+ action->name = xbt_strdup(name);
+ action->request_list = xbt_fifo_new();
+ action->state = SIMIX_RUNNING;
+ action->execution.host = NULL; /* FIXME: do we need the list of hosts? */
+
+#ifdef HAVE_TRACING
+ action->category = NULL;
+#endif
+
+ /* set surf's action */
+ workstation_list = xbt_new0(void *, host_nb);
+ for (i = 0; i < host_nb; i++)
+ workstation_list[i] = host_list[i]->host;
+
+ /* set surf's action */
+ if (!MC_IS_ENABLED) {
+ action->execution.surf_exec =
+ surf_workstation_model->extension.workstation.
+ execute_parallel_task(host_nb, workstation_list, computation_amount,
+ communication_amount, amount, rate);
+
+ surf_workstation_model->action_data_set(action->execution.surf_exec, action);
+ }
+ DEBUG1("Create parallel execute action %p", action);
+
+ return action;
+}
+
+void SIMIX_host_execution_destroy(smx_action_t action)
+{
+ DEBUG1("Destroy action %p", action);
+
+ if (action->name)
+ xbt_free(action->name);
+
+ xbt_fifo_free(action->request_list);
+
+ if (action->execution.surf_exec) {
+ surf_workstation_model->action_unref(action->execution.surf_exec);
+ action->execution.surf_exec = NULL;
+ }
+
+#ifdef HAVE_TRACING
+ TRACE_smx_action_destroy(action);
+#endif
+ xbt_free(action);
+}
+
+void SIMIX_host_execution_cancel(smx_action_t action)
+{
+ DEBUG1("Cancel action %p", action);
+
+ if (action->execution.surf_exec)
+ surf_workstation_model->action_cancel(action->execution.surf_exec);
+}
+
+double SIMIX_host_execution_get_remains(smx_action_t action)
+{
+ double result = 0.0;
+
+ if (action->state == SIMIX_RUNNING)
+ result = surf_workstation_model->get_remains(action->execution.surf_exec);
+
+ return result;
+}
+
+e_smx_state_t SIMIX_host_execution_get_state(smx_action_t action)
+{
+ return action->state;
+}
+
+void SIMIX_host_execution_set_priority(smx_action_t action, double priority)
+{
+ if(action->execution.surf_exec)
+ surf_workstation_model->set_priority(action->execution.surf_exec, priority);
+}
+
+void SIMIX_pre_host_execution_wait(smx_req_t req)
+{
+ smx_action_t action = req->host_execution_wait.execution;
+
+ DEBUG2("Wait for execution of action %p, state %d", action, action->state);
+
+ /* Associate this request to the action */
+ xbt_fifo_push(action->request_list, req);
+ req->issuer->waiting_action = action;
+
+ /* set surf's action */
+ if (MC_IS_ENABLED){
+ action->state = SIMIX_DONE;
+ SIMIX_execution_finish(action);
+ return;
+ }
+
+ /* If the action is already finished then perform the error handling */
+ if (action->state != SIMIX_RUNNING)
+ SIMIX_execution_finish(action);
+}
+
+void SIMIX_host_execution_suspend(smx_action_t action)
+{
+ if(action->execution.surf_exec)
+ surf_workstation_model->suspend(action->execution.surf_exec);