OpenVMS System Services Reference Manual

This document is the second part of the OpenVMS System Services Reference Manual, covering system services from $GETQUI through Z. It provides detailed descriptions of OpenVMS system service routines, including their syntax (format), arguments, functional descriptions, required privileges/quotas, related services, and condition values returned.

Key topics covered include:

• Queue and Job Management: Detailed instructions for $GETQUI, $GETQUIW, $SNDJBC, and $SNDJBCW for managing queues, jobs, and characteristics.
• Process and System Information: Services like $GETSYI, $GETTIM, $GETUAI, and $PROCESS_SCAN.
• Memory Management: Services for locking/unlocking pages in memory and the working set ($LCKPAG, $LKWSET, $ULKPAG, $ULWSET, and their 64-bit variants), as well as mapping global sections ($MGBLSC).
• Security and Access Control: Services for managing security characteristics ($GETSECURITY, $SETSECURITY), identifiers ($GRANTID, $REVOKID, $MODHOLDER, $MODIDENT), and proxy verification ($VERIFY_PROXY).
• Time and Event Management: Services for setting/reading event flags ($SETEF, $READEF, $WAITFR, $WFLAND, $WFLOR) and time conversion/management ($GETTIM, $SETIME, $SETIMR, $NUMTIM, $NUMUTC, $TIMCON).
• Error and Exception Handling: Logging messages ($PUTMSG, $SNDERR, $SNDOPR), setting exception vectors ($SETEXV), and stack unwinding ($UNWIND, $GOTO_UNWIND).
• System/Process Control: Services for process scheduling ($SCHED, $SETPRI, $SETPRN), process suspension ($SUSPND, $RESUME, $WAKE), and resource wait modes ($SETRWM).

The document also includes information on OpenVMS Alpha 64-bit addressing support, standard calling conventions, and a comprehensive index.