SCRATCH-OPEN

From NDWiki
Revision as of 12:30, 17 August 2017 by Tingo (talk | contribs) (created SCRATCH-OPEN page)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
@SCRATCH-OPEN <file name>, <access type>

Open a file as a scratch file.

<file name>
(default type = SYMB) file name.
<access type>
specifies the intended access-mode, only the following combinations are legal:
R  - sequential read
W  - sequential write
RW - sequential read and write
RX - random read
WX - random read and write
WA - sequential write append
RC - random read with read and write access from other users allowed (only contiguous files)
WC - random read and write with read and write access from other users allowed (only contiguous files)

Rules:

  1. Permitted for all users.
  2. The file is kept permanently opened. It is closed when logging out or by @CLOSE-FILE <file no.> but not @CLOSE-FILE -1. When closed, only the first 32K words are retained.
  3. @CLOSE-FILE -2 also closes scratch files.
  4. See rules 2 - 6 of @OPEN-FILE.

Example:

@SCRATCH-OPEN SCRATCH:DATA, RW

The file SCRATCH:DATA is opened as a scratch file with read and write access.

Related commands

@CONNECT-FILE

@OPEN-FILE

OPEN (monitor call)

References

Norsk Data Document ND–60.128.03 SINTRAN III REFERENCE MANUAL (printed February 1983), page 1-179

Norsk Data Document ND–60.174.Q01 SINTRAN III QUICK REFERENCE CARD