On Oct 5, 2009, at 11:46 AM, Jeff Morriss wrote:
It's been a while, but my memory says that while memory-mapped files
are
great, *growing* memory mapped files was (significantly) less
pleasant.
Growing a memory-mapped file *and keeping the entire file mapped into
a single contiguous area* isn't very pleasant.
If you don't have to keep the entire file mapped contiguously, it's
much easier - ftruncate() to grow the file, and another mmap() call to
map the new area on UN*X, probably similar calls on Windows.
Using a mapped file as backing store for memory allocations shouldn't
require a single contiguous area.
