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Subsections

• Synopsis
• Description
• Options
• Resources
• Notes
• Diagnostics
• Examples
• See also

inhold

Wait for inhale (p) to finish.

Synopsis

inhold [-t#]

Description

inhold waits for inhale (p)) to finish rebuilding the system. It may be used to synchronize a programmer rebuild, especially as initiated via a cron job, so that it starts shortly after inhale (p) finishes.

inhold uses tract (p) to determine when $AIPSARCH/LOGFILE (§1.2) is updated.

Options

-t interval

Time resolution, in seconds, to test for the completion of inhale (p) (default 300).

Resources

none

Notes

• The time resolution specified by the -t option determines the sleep interval. An extra 60 seconds is added to this to derive the maximum age of the LOGFILE. This accounts for slow NFS updates of LOGFILE's timestamp.

Diagnostics

Status return values:
0: success
1: initialization error

Examples

An example programmer cron entry might be as follows:

   00 23 * * 6 . $HOME/.profile ; inhold && rebuild

where rebuild is some script written by the programmer to rebuild the AIPS++ workspace. The cron start time should coincide with the start time of inhale (p).

See also

The unix manual page for cron(1).
AIPS++ variable names (§1.2).
inhale (p), AIPS++ code import utility.
tract (p), Report the age of a file or directory.