# Domain/OS Calls

There are many system and library calls in Domain/OS which are not documented in the Domain/OS Call Reference. In fact, there are entire families of calls not mentioned. Though some of these calls are only useful inside the family libraries, many can be very useful to advanced users. Apollo (and later HP) always said these calls were unsupported and "use at your own risk" because they may be changed at any time with no warning. However, now that HP seems to have fully killed off Domain, changes are unlikely.

This is by no means complete, but I add information as I receive (or deduce) it. Please send any additional information to me at `roeber@cern.ch`. Thank you.

See also: a list of UIDs, a list of traits, and other related miscellany.

## Families:

`

- a88k_$
- acl_$
- aclm_$
- as_$
- asknode_$
- attr_$
- audit_$
- aws_$
- baf_$
- bio_$
- blas_$
- c_$
- cache_$
- cal_$
- case_hm_$
- cdrom_rpc_$
- cl_$
- cmpexe_$
- color_$
- context_$
- crypt_$
- ct_$
- ctm_$
- ddslib_$
- des_$
- devno_$
- dir_$
- disk_$
- display_$
- dp_$
- dst_$
- ec2_$
- errlog_$
- error_$
- ev_$
- exc_$
- file_$
- fim_$
- fio_$
- fp040_$
- fpa_$
- fpp_$
- fpu_$
- ftn_$
- fu_$
- getpass_$
- gmf_$
- gpr_$
- gpu_$
- gsr_$
- help_$
- hint_$
- idm_$
- imex_$
- ios_$
- ios_dir_$
- ios_ftn_$
- ios_util_$
- ipc_$
- kernel_vfmt_$
- kg_$
- lb_$
- ldm_$
- lib_$
- libc_$
- libm_$
- loader_$
- login_$
- lpr_$
- m_$
- malloc_$
- mbx_$
- ms_$
- msg_$
- mst_$
- mt_$
- mts_$
- mutex_$
- name_$
- net_$
- network_$
- nm_$
- os_$
- osinfo_$
- pacct_$
- pad_$
- pas_$
- passthru_$
- passwd_$
- pbu_$
- pbu2_$
- pbufs_$
- pchist_$
- peb_$
- pfm_$
- pgm_$
- pio_$
- pipe_$
- pm_$
- prf_$
- prman_name_$
- proc1_$
- proc2_$
- prot_$
- prsvr_$
- pthread_exc_$
- ptrace_$
- pty_$
- punch_$
- qsort_$
- rca_$
- re_$
- rec_mutex_$
- res_$
- rgy_$
- rgy_mail_$
- rgy_unix_$
- rgyc_$
- rgyc_cache_$
- rgyc_unix_$
- rgylib_$
- rip_$
- rm_$
- route_$
- rpc_$
- rrpc_$
- rws_$
- scsi_$
- sfcb_$
- sio_$
- sio_hw_$
- slink_$
- smd_$
- socket_$
- spinlock_$
- spm_$
- sr9_$
- stream_$
- strl_$
- swap_$
- swt_$
- swtu_$
- sym_$
- sys5_lock_$
- tape_$
- task_$
- term_$
- tfp_$
- thread_$
- time_$
- tpad_$
- tpad_svc_$
- trait_$
- tty_$
- type_$
- uet_$
- uid_$
- unix_$
- unix_ctime_$
- unix_disk_$
- unix_fio_$
- unix_fu_$
- unix_getopt_$
- unix_ipc_$
- unix_mount_$
- unix_msg_$
- unix_sem_$
- unix_shm_$
- unix_sig_$
- unix_static_$
- unix_stdio_$
- unix_time_$
- unix_tty_$
- unix_uid_$
- (unix miscellaneous)
- uuid_$
- vec_$
- vfmt_$
- volx_$
- vstreams_$
- vte_$
- xidm_$
- xpage_$
- xpd_$
- xplm_$
- xpstk_$
- xptask_$
- xptb_$
- (miscellaneous)

`