XBT_PUBLIC void simcall_sem_acquire(smx_sem_t sem);
XBT_PUBLIC int simcall_sem_acquire_timeout(smx_sem_t sem, double max_duration);
-/***************************** Storage **********************************/
-XBT_PUBLIC sg_size_t simcall_storage_read(surf_storage_t st, sg_size_t size);
-XBT_PUBLIC sg_size_t simcall_storage_write(surf_storage_t fd, sg_size_t size);
+/***************************** Io **************************************/
+XBT_PUBLIC e_smx_state_t simcall_io_wait(smx_activity_t io);
/************************** MC simcalls **********************************/
XBT_PUBLIC int simcall_mc_random(int min, int max);
