Hi,
what are the assumptions PostgreSQL normally does about atomic
operations? I see sig_atomic_t is used in signal handlers. Additionally,
there is a match for a cmpxchg instruction in some solaris ports code,
but that's about what I found in the source.
Am I safe assuming that pointer assignments are atomic (on all platforms
PostgreSQL compiles on, that is)? (This is a 'practical advice' from the
GNU Libc Manual) How about other integers smaller or equal in size to
sizeof(sig_atomic_t)?
I'm asking to make sure I rely on the same guarantees in my code.
Regards
Markus
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