+sg_storage_size_t SIMIX_file_get_size(smx_process_t process, smx_file_t fd);
+xbt_dynar_t SIMIX_file_get_info(smx_process_t process, smx_file_t fd);
+
+sg_storage_size_t SIMIX_pre_storage_get_free_size(smx_simcall_t simcall,const char* name);
+sg_storage_size_t SIMIX_storage_get_free_size(smx_process_t process,const char* name);
+
+sg_storage_size_t SIMIX_pre_storage_get_used_size(smx_simcall_t simcall,const char* name);
+sg_storage_size_t SIMIX_storage_get_used_size(smx_process_t process,const char* name);
+
+xbt_dict_t SIMIX_storage_get_properties(smx_storage_t storage);
+xbt_dict_t SIMIX_pre_storage_get_properties(smx_simcall_t, smx_storage_t);
+
+void SIMIX_pre_storage_set_data(smx_simcall_t, smx_storage_t, void*);
+void* SIMIX_pre_storage_get_data(smx_simcall_t, smx_storage_t);
+
+xbt_dict_t SIMIX_pre_storage_get_content(smx_simcall_t simcall, smx_storage_t storage);
+xbt_dict_t SIMIX_storage_get_content(smx_storage_t storage);