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There are APIs you can use to get the current size of the user space.
However, user spaces are often "padded" (i.e. you tell it to make the
user space 1000 bytes, but the system makes it 4000 bytes and leaves the
remaining 3000 bytes empty) therefore I don't recommend this approach.
You should keep track of the length of your user space somehow. This
can be data that you store inside the user space itself, or it can be
data that your program "remembers" from when it populated the space.
But either way, I would recommend that your program manage that length
rather than expecting to retrieve it from the OS.
Incidentally, the article you started with (from the looks of it) was
something I wrote. I don't know anyone else that uses variables named
'Kaboom' :)
Mike wrote:
How would one calculate the size if I didn't have that number? Read through
the user space and add up all of the characters?
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