simplehash: Allow use of simplehash without MemoryContext.

Robert Haas <rhaas@postgresql.org>

Commit: 48995040d5e7b1e9bac35d72aff326cae002219d
Author: Robert Haas <rhaas@postgresql.org>
Date: 2019-12-17T19:06:25Z
Releases: 13.0
simplehash: Allow use of simplehash without MemoryContext.

If the SH_RAW_ALLOCATOR is defined, it will be used to allocate bytes
for the hash table, and no dependencies on MemoryContext will exist.
This means, in particular, that the SH_CREATE function will not take
a MemoryContext argument.

Patch by me, reviewed by Andres Freund.

Discussion: http://postgr.es/m/CA+Tgmob8oyh02NrZW=xCScB+5GyJ-jVowE3+TWTUmPF=FsGWTA@mail.gmail.com

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src/include/lib/simplehash.h modified +23 −0

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