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V_BUFFERS()
Declare or retrieve the number of DBV file buffers
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Syntax
V_BUFFERS( [<nBuffers>] ) -> nBuffers
Arguments
<nBuffers> is an integer value indicating a number of 1K buffers.
The default (which is also the minimum value) is 3 buffers.
Returns
V_BUFFERS() returns an integer indicating the previous setting of
the number of 1K buffers.
Description
FlexFile manages all file input and output through a set of 1K
buffers. Because there is such a diversity in buffered I/O from
machine to machine, FlexFile offers the ability to customize the
amount of space used for this purpose.
If you are running with a disk cache or are tight on memory, leave
the buffers at their default (and minimum) value of 3. If you have
the space and would like to increase performance, increase the
number of buffers.
Notes
. The buffers may only be changed when no DBV files are in use.
Examples
// Set FlexFile's buffers to 5K
V_BUFFERS(5)
V_USE( "file" ) // Open a file.
// This line has no effect because files are open.
V_BUFFERS(10)
? V_BUFFERS() // Result: 5
See Also:
V_FILES()
V_USE()
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