I'm trying to map a portion of a file to memory. The file uses
the FS APIs and is already open via FSOpenFork. The open fork is
used by a ton of other code, so I really don't want to rewrite
all of this to use another API.
The File-System Performance Guidelines document explains how to
map a file to memory, but the only API they give is mmap(),
which requires a POSIX file descriptor.
So ... is there an Carbon function for mapping a file to memory
given an open fork reference?
... or is there a way to turn a fork reference into a usable
file descriptor? I thought I remembered that there was some way
of doing this, but a search of the ADC site has turned up
nothing. I either remembered wrong, or I'm using the wrong keywords.
... or do I just have to open the file again using open()?
--
James Bucanek
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