techCloseTechFile

techCloseTechFile( 
d_techID 
) 
=> t / nil

Description

Changes the status of the technology database to closed and decrements the close count. The technology database is not purged from virtual memory until the system needs to use the memory. Internally, the system maintains a count of the number of times you open and close a specific technology database. The count increments when you open and decrements when you close. When the close count is 0 and the system needs more virtual memory, it purges the technology database from virtual memory.

Arguments

d_techID

The identifier of the technology database.

Value Returned

t	The technology database was closed.
nil	The technology database does not exist.

Example

techCloseTechFile(tfID)
=> t

Closes the technology database identified by tfID.

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