-void SIMIX_pre_storage_file_rename(smx_simcall_t simcall,smx_storage_t storage, const char* src, const char* dest);
-
-void* SIMIX_file_get_data(smx_file_t fd);
-void SIMIX_file_set_data(smx_file_t fd, void *data);
+int SIMIX_pre_file_seek(smx_simcall_t simcall, smx_file_t fd, sg_size_t offset, int origin);
+int SIMIX_pre_file_move(smx_simcall_t simcall, smx_file_t fd, const char* fullpath);
+int SIMIX_pre_file_rcopy(smx_simcall_t simcall, smx_file_t fd, smx_host_t dest, const char* fullpath);