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| author | Andres Freund <andres@anarazel.de> | 2017-04-07 14:44:47 -0700 |
|---|---|---|
| committer | Andres Freund <andres@anarazel.de> | 2017-04-07 14:48:11 -0700 |
| commit | e8fdbd58fe564a29977f4331cd26f9697d76fc40 (patch) | |
| tree | 7ac78010b4ad51730fe948a79e7c5d7e5f461981 /src/backend/executor/nodeHashjoin.c | |
| parent | 28afad5c85b436f19d9f2c0e3197c7db960fef6f (diff) | |
| download | postgresql-e8fdbd58fe564a29977f4331cd26f9697d76fc40.tar.gz postgresql-e8fdbd58fe564a29977f4331cd26f9697d76fc40.zip | |
Improve 64bit atomics support.
When adding atomics back in b64d92f1a, I added 64bit support as
optional; there wasn't yet a direct user in sight. That turned out to
be a bit short-sighted, it'd already have been useful a number of times.
Add a fallback implementation of 64bit atomics, just like the one we
have for 32bit atomics.
Additionally optimize reads/writes to 64bit on a number of platforms
where aligned writes of that size are atomic. This can now be tested
with PG_HAVE_8BYTE_SINGLE_COPY_ATOMICITY.
Author: Andres Freund
Reviewed-By: Amit Kapila
Discussion: https://postgr.es/m/20160330230914.GH13305@awork2.anarazel.de
Diffstat (limited to 'src/backend/executor/nodeHashjoin.c')
0 files changed, 0 insertions, 0 deletions