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BATCH/PRINT Components
o Job Controller
  JOBCTL.EXE
o Print Symbiont
  PRTSMB.EXE, SMBSRVSHR.EXE
o Input Symbiont
  INPSMB.EXE
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BATCH/PRINT Components
o $SET/SHOW/INIT/START/STOP
  QUEMAN.EXE
o $SUBMIT
  SUBMIT.EXE
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BATCH/PRINT Components
o Batch/Print Job Queue File
  JBCSYSQUE.DAT
o Job Accounting File
  ACCOUNTNG.DAT
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BATCH/PRINT Communication
o System Services
o Mailboxes
o Distributed Queue File
o VMS Lock Manager Locks
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BATCH/PRINT Queue File
o Shared across VAXcluster
o RMS structure
- Sequential organization
- Fixed, 512 byte records
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o RMS access attributes
- Multi-buffered (/BUFFER_COUNT)
- Automatically extended (/EXTEND)
- Read/Write access
- Random access by RRN
- User-provided interlock
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o Queue File Validation
- Cold start validation done
  by 1st active job controller
- Warm start validation otherwise
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o Queue file header
o Linked lists of entries for
- Queues
- Jobs within queues
- Files within jobs
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- Characteristics
- Forms
- Pending operations & messages
- Free records
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Queue Types
o Execution (node specific)
- Batch
- Output
  Printer
  Terminal
  Server
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o Generic
- Batch
- Output
o Logical (V3 compatibility)
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Job Controller Locks
o Queue file transaction lock
o Queue file entry locks
o "Doorbell" locks
  Use blocking ASTs to 
  "signal" other job controllers 
  within a cluster
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BATCH/PRINT System Services
o $SNDJBC(W)
- Replaces $SNDACC & $SNDSMB
- Old services supported
o $GETQUI(W)
  New for V4.2
o Both used by DCL utilities
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GETQUI Functions
o Display characteristic
o Display form
o Display queue
o Display job
o Display file
o Cancel operation
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GETQUI Item Lists
o Output Values
o Input Values
- Search name
- Search number
- Search flags
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GETQUI Search Flags
o ALL_JOBS
o BATCH
o SYMBIONT
o THIS_JOB
o WILDCARD
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GETQUI Objects
o A search context kept for objects
- QUEUE
    JOB
      FILE
- CHARACTERISTIC
- FORM
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o GETQUI search context
- supports flexible 
  batch/print inquiries
- points to entries in queue file
- reflects the hierarchy of the queue file
- protected by queue file entry locks
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GETQUI Example
o "SHOW QUEUE/ALL"
o Initial conditions
- SEARCH_NAME = "*"
- SEARCH_FLAGS = "ALL_JOBS"
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  FOR all QUEUEs
    GETQUI ("DISPLAY_QUEUE")
    FOR all JOBs within QUEUE
      GETQUI ("DISPLAY_JOB")
      FOR all FILEs within JOB
        GETQUI ("DISPLAY_FILE""
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Misc BATCH/PRINT Issues
o SCSNODE
o Batch job scheduling
o User-modified/-written symbionts
o JOBCTL abort/restart
o JOBCTL.DMP, PRTSMB.DMP
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o Execution & queue priorities
- INIT/QUEUE/BASE_PRIORITY (1-15)
  DEFPRI
- SUBMIT/PRIORITY (0-255)
  DEFQUEPRI
  MAXQUEPRI
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