Peter Memishian wrote:
> lines 517-518, elsewhere: What happens if alloca fails (is such a thing
> possible)?
It is no more or less possible than a stack allocation failing -- e.g., if
we're going to worry that:
char buf[2048];
... might "fail" (in some equally undefined way), then we need to worry
about alloca(). But I think worrying about such things for any reasonable
buffer size (e.g., <8K) is needless.
While "char buf[2048]" is not, by itself, something to worry about,
putting large objects on the stack can be a problem for the kernel
where the stack size is limited.
A 2k buffer is 10% of the stack on x86 (20k) and slightly less on
sparcv9 (24k)...please tread carefully....excessive stack use by
networking code has caused problems in the past.
Darren
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