Copyright Digital Equipment Corp. All rights reserved.
This help category provides an overview and the format of each of the system services. The C function prototypes are available only on OpenVMS Alpha and Integrity server systems. System services provide basic operating system functions, interprocess communication, and various control resources.
$ABORT_TRANS $ABORT_TRANSW $ACK_EVENT $ACM $ACMW $ACQUIRE_GALAXY_LOCK_(Alpha_Only) $ADD_BRANCH $ADD_BRANCHW $ADD_HOLDER $ADD_IDENT $ADD_PROXY $ADJSTK $ADJWSL $ALLOC $ASCEFC $ASCTIM $ASCTOID $ASCUTC $ASSIGN $AUDIT_EVENT $AUDIT_EVENTW $AVOID_PREEMPT $BINTIM $BINUTC $BRKTHRU $BRKTHRUW $CANCEL $CANEXH $CANTIM $CANWAK $CHECK_ACCESS $CHECK_FEN_(Alpha_and_Integrity_servers) $CHECK_PRIVILEGE $CHECK_PRIVILEGEW $CHKPRO $CLEAR_SYSTEM_EVENT_(Alpha_and_Integrity_servers) $CLEAR_UNWIND_TABLE_(Integrity_servers_Only) $CLOSE $CLRAST $CLRCLUEVT $CLREF $CMEXEC $CMEXEC_64 $CMKRNL $CMKRNL_64 $CONNECT $CPU_CAPABILITIES $CPU_TRANSITION_(Alpha_and_Integrity_servers) $CPU_TRANSITIONW_(Alpha_and_Integrity_servers) $CREATE $CREATE_BUFOBJ_64_(Alpha_and_Integrity_servers) $CREATE_GALAXY_LOCK_(Alpha_Only) $CREATE_GALAXY_LOCK_TABLE_(Alpha_Only) $CREATE_GDZRO $CREATE_GFILE_(Alpha_and_Integrity_servers) $CREATE_GPFILE_(Alpha_and_Integrity_servers) $CREATE_GPFN_(Alpha_and_Integrity_servers) $CREATE_RDB $CREATE_REGION_64_(Alpha_and_Integrity_servers) $CREATE_UID $CREATE_USER_PROFILE $CRELNM $CRELNT $CREMBX $CREPRC $CRETVA $CRETVA_64_(Alpha_and_Integrity_servers) $CRMPSC $CRMPSC_FILE_64_(Alpha_and_Integrity_servers) $CRMPSC_GDZRO_64_(Alpha_and_Integrity_servers) $CRMPSC_GFILE_64_(Alpha_and_Integrity_servers) $CRMPSC_GPFILE_64_(Alpha_and_Integrity_servers) $CRMPSC_GPFN_64_(Alpha_and_Integrity_servers) $CRMPSC_PFN_64_(Alpha_and_Integrity_servers) $CVT_FILENAME_(Alpha_and_Integrity_servers) $DACEFC $DALLOC $DASSGN $DCLAST $DCLCMH $DCLEXH $DECLARE_RM $DECLARE_RMW $DELETE $DELETE_BUFOBJ_(Alpha_and_Integrity_servers) $DELETE_GALAXY_LOCK_(Alpha_Only) $DELETE_GALAXY_LOCK_TABLE_(Alpha_Only) $DELETE_INTRUSION $DELETE_PROXY $DELETE_REGION_64_(Alpha_and_Integrity_servers) $DELLNM $DELMBX $DELPRC $DELTVA $DELTVA_64_(Alpha_and_Integrity_servers) $DEQ $DEVICE_PATH_SCAN_(Alpha_and_Integrity_servers) $DEVICE_SCAN $DGBLSC $DISCONNECT $DISMOU $DISPLAY $DISPLAY_PROXY $DLCEFC $END_BRANCH $END_BRANCHW $END_TRANS $END_TRANSW $ENQ $ENQW $ENTER $ERAPAT $ERASE $EXIT $EXPREG $EXPREG_64_(Alpha_and_Integrity_servers) $EXTEND $FAO $FAOL_64_(Alpha_and_Integrity_servers) $FILESCAN $FIND $FIND_HELD $FIND_HOLDER $FINISH_RDB $FLUSH $FORCEX $FORGET_RM $FORGET_RMW $FORMAT_ACL $FORMAT_AUDIT $FREE $FREE_USER_CAPABILITY_(Alpha_and_Integrity_servers) $GET $GETDTI $GETDTIW $GETDVI $GETDVIW $GETENV_(Alpha_Only) $GETJPI $GETJPIW $GETLKI $GETLKIW $GETMSG $GETQUI $GETQUIW $GETRMI $GETSYI $GETSYIW $GETTIM $GETTIM_PREC $GETUAI $GETUTC $GET_ALIGN_FAULT_DATA_(Alpha_and_Integrity_servers) $GET_ARITH_EXCEPTION_(Alpha_only) $GET_DEFAULT_TRANS $GET_GALAXY_LOCK_INFO_(Alpha_Only) $GET_GALAXY_LOCK_SIZE_(Alpha_Only) $GET_REGION_INFO_(Alpha_and_Integrity_servers) $GET_SECURITY $GET_SYS_ALIGN_FAULT_DATA_(Alpha_and_Integrity_servers) $GET_UNWIND_ENTRY_INFO_(Integrity_servers_Only) $GET_USER_CAPABILITY_(Alpha_and_Integrity_servers) $GOTO_UNWIND_(Alpha_Only) $GOTO_UNWIND_64_(Alpha_and_Integrity_servers) $GRANTID $HASH_PASSWORD $HIBER $ICC_ACCEPT $ICC_CLOSE_ASSOC $ICC_CONNECT $ICC_CONNECTW $ICC_DISCONNECT $ICC_DISCONNECTW $ICC_OPEN_ASSOC $ICC_RECEIVE $ICC_RECEIVEW $ICC_REJECT $ICC_REPLY $ICC_REPLYW $ICC_TRANSCEIVE $ICC_TRANSCEIVEW $ICC_TRANSMIT $ICC_TRANSMITW $IDTOASC $IEEE_SET_FP_CONTROL_(Alpha_and_Integrity_servers) $IEEE_SET_PRECISION_MODE_(Integrity_servers_Only) $IEEE_SET_ROUNDING_MODE_(Integrity_servers_Only) $INIT_SYS_ALIGN_FAULT_REPORT_(Alpha_and_Integrity_servers) $INIT_VOL $IO_CLEANUP_(Alpha_and_Integrity_servers) $IO_FASTPATH_(Alpha_and_Integrity_servers) $IO_FASTPATHW_ $IO_PERFORM_(Alpha_and_Integrity_servers) $IO_PERFORMW_(Alpha_and_Integrity_servers) $IO_SETUP_(Alpha_and_Integrity_servers) $JOIN_RM $JOIN_RMW $LCKPAG $LCKPAG_64_(Alpha_and_Integrity_servers) $LKWSET $LKWSET_64_(Alpha_and_Integrity_servers) $MGBLSC $MGBLSC_64_(Alpha_and_Integrity_servers) $MGBLSC_GPFN_64_(Alpha_and_Integrity_servers) $MOD_HOLDER $MOD_IDENT $MOUNT $MTACCESS $NUMTIM $NUMUTC $NXTVOL $OPEN $PARSE $PARSE_ACL $PERM_DIS_ALIGN_FAULT_REPORT_(Alpha_and_Integrity_servers) $PERM_REPORT_ALIGN_FAULT_(Alpha_and_Integrity_servers) $PERSONA_ASSUME_(Alpha_and_Integrity_servers) $PERSONA_CLONE_(Alpha_and_Integrity_servers) $PERSONA_CREATE_(Alpha_and_Integrity_servers) $PERSONA_CREATE_EXTENSION_(Alpha_and_Integrity_servers) $PERSONA_DELEGATE_(Alpha_and_Integrity_servers) $PERSONA_DELETE $PERSONA_DELETE_EXTENSION_(Alpha_and_Integrity_servers) $PERSONA_EXTENSION_LOOKUP_(Alpha_and_Integrity_servers) $PERSONA_FIND_(Alpha_and_Integrity_servers) $PERSONA_MODIFY_(Alpha_and_Integrity_servers) $PERSONA_QUERY_(Alpha_and_Integrity_servers) $PERSONA_RESERVE_(Alpha_and_Integrity_servers) $POWER_CONTROL $PROCESS_AFFINITY_(Alpha_and_Integrity_servers) $PROCESS_CAPABILITIES_(Alpha_and_Integrity_servers) $PROCESS_SCAN $PURGWS $PURGE_WS_(Alpha_and_Integrity_servers) $PUT $PUTMSG $QIO $QIOW $READ $READEF $REGISTRY_(Alpha_and_Integrity_servers) $REGISTRYW_(Alpha_and_Integrity_servers) $RELEASE $RELEASE_GALAXY_LOCK_(Alpha_Only) $REMOVE $REM_HOLDER $REM_IDENT $RENAME $RESCHED $RESUME $REVOKID $REWIND $RMSRUNDWN $RPCC_64_(Alpha_and_Integrity_servers) $SCAN_INTRUSION $SCHDWK $SCHED $SEARCH $SETAST $SETCLUEVT $SETDDIR $SETDFPROT $SETDTI $SETDTIW $SETEF $SETEXV $SETFLT $SETFLT_64 $SETIME $SETIMR $SETPRA $SETPRI $SETPRN $SETPRT $SETPRT_64_(Alpha_and_Integrity_servers) $SETPRV $SETRWM $SETSHLV $SETSTK $SETSTK_64_(Alpha_and_Integrity_servers) $SETSWM $SETUAI $SETUP_AVOID_PREEMPT $SET_DEFAULT_TRANS $SET_DEFAULT_TRANSW $SET_DEVICE $SET_DEVICEW $SET_IMPLICIT_AFFINITY_(Alpha_and_Integrity_servers) $SET_PROCESS_PROPERTIESW_(Alpha_and_Integrity_servers) $SET_RESOURCE_DOMAIN $SET_RETURN_VALUE_(Alpha_and_Integrity_servers) $SET_SECURITY $SET_SYSTEM_EVENT_(Alpha_and_Integrity_servers) $SET_UNWIND_TABLE_(Integrity_servers_Only) $SHOW_INTRUSION $SIGNAL_ARRAY_64 $SNDERR $SNDJBC $SNDJBCW $SNDOPR $SPACE $START_ALIGN_FAULT_REPORT_(Alpha_and_Integrity_servers) $START_BRANCH $START_BRANCHW $START_TRANS $START_TRANSW $STOP_ALIGN_FAULT_REPORT_(Alpha_and_Integrity_servers) $STOP_SYS_ALIGN_FAULT_REPORT_(Alpha_and_Integrity_servers) $SUBSYSTEM $SUSPND $SYNCH $TIMCON $TRANS_EVENT $TRANS_EVENTW $TRNLNM $TRUNCATE $TSTCLUEVT $ULKPAG $ULKPAG_64_(Alpha_and_Integrity_servers) $ULWSET $ULWSET_64_(Alpha_and_Integrity_servers) $UNWIND $UPDSEC $UPDSECW $UPDSEC_64_(Alpha_and_Integrity_servers) $UPDSEC_64W_(Alpha_and_Integrity_servers) $VERIFY_PROXY $WAIT $WAITFR $WAKE $WFLAND $WFLOR $WRITE