Fix memory ordering issues; document IMemory peculiarities
Convert to standard atomics.
Correct mHeapId memory ordering. Required acquire ordering on loads
was missing in several places.
Remove atomic updates to count, since it is only updated with lock
held. (And would be missing fences if this were not true.)
Document the peculiar use of copy-in-write vectors in a context in
which copy-on-write is unsafe.
While we're here, consistently check dup() for errors.
Bug: 28816986
Change-Id: I05b9f96e3867fa2e0abe6f319be8c56b89624c41
1 file changed