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GuruMeditation
Docs » Autodocs » dos.library » AddBuffers

NAME

	AddBuffers -- Changes the number of buffers for a filesystem (V36)

SYNOPSIS

	success = AddBuffers(filesystem, number)
D0 D1 D2
BOOL AddBuffers(STRPTR, LONG)

FUNCTION

	Adds buffers to a filesystem.  If it succeeds, the number of current
buffers is returned in IoErr(). Note that "number" may be negative.
The amount of memory used per buffer, and any limits on the number of
buffers, are dependant on the filesystem in question.
If the call succeeds, the number of buffers in use on the filesystem
will be returned by IoErr().

INPUTS

	filesystem - Name of device to add buffers to (with ':').
number - Number of buffers to add. May be negative.

RESULT

	success    - Success or failure of command.

BUGS

	The V36 ROM filesystem (FFS/OFS) doesn't return the right number of
buffers unless preceded by an AddBuffers(fs,-1) (in-use buffers aren't
counted). This is fixed in V37.
The V37 and before ROM filesystem doesn't return success, it returns
the number of buffers. The best way to test for this is to consider
0 (FALSE) failure, -1 (DOSTRUE) to mean that IoErr() will have the
number of buffers, and any other positive value to be the number of
buffers. It may be fixed in some future ROM revision.

SEE ALSO

IoErr()

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