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$PRINCIPAL

Draft MDC Standard

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7.1.4.10.11 $Principal

$P[RINCIPAL]

identifies the principal I/O device, which is defined in the following fashion:

  1. If the process is initiated by another M[UMPS] process then $Principal is given the value of $Principal of the initiating process, unless overriden by implementation-specific Job parameters.
  2. If the process is initiated from a specific device then $Principal is given the identifier of that device.
  3. Otherwise $Principal is given an implementation-specific value.

$Principal is constant throughout the active life of a process.

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Copyright © Standard Documents; 1977-2024 MUMPS Development Committee;
Copyright © Examples: 1995-2024 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2024 Ed de Moel.

Some specifications are "approved for inclusion in a future standard". Note that the MUMPS Development Committee cannot guarantee that such future standards will indeed be published.

This page most recently updated on 15-Nov-2023, 12:08:12.

For comments, contact Ed de Moel (demoel@jacquardsystems.com)