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Thomas Munro 83aadbeb96 Require memory barrier support. ... Previously we had a fallback implementation that made a harmless system call, based on the assumption that system calls must contain a memory barrier. That shouldn't be reached on any current system, and it seems highly likely that we can easily find out how to request explicit memory barriers, if we've already had to find out how to do atomics on a hypothetical new system. Removed comments and a function name referred to a spinlock used for fallback memory barriers, but that changed in 1b468a13, which left some misleading words behind in a few places. Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi> Suggested-by: Andres Freund <andres@anarazel.de> Discussion: https://postgr.es/m/721bf39a-ed8a-44b0-8b8e-be3bd81db748%40technowledgy.de Discussion: https://postgr.es/m/3351991.1697728588%40sss.pgh.pa.us		1 year ago
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tas	Update copyright for 2024	2 years ago
win32	Close socket in case of errors in setting non-blocking	2 years ago
.gitignore	Refactor dlopen() support	7 years ago
Makefile	Remove distprep	2 years ago
atomics.c	Require memory barrier support.	1 year ago
meson.build	Update copyright for 2024	2 years ago
posix_sema.c	Remove --disable-spinlocks.	1 year ago
sysv_sema.c	Remove --disable-spinlocks.	1 year ago
sysv_shmem.c	Revise GUC names quoting in messages again	2 years ago
win32_sema.c	Update copyright for 2024	2 years ago
win32_shmem.c	Revise GUC names quoting in messages again	2 years ago