Revision - 8db1294 - add atomic operators for globals, memory, and setonce (#52868) - origin: https://github.com/JuliaLang/julia

visit type:

https://github.com/JuliaLang/julia

19 April 2024, 06:28:37 UTC

Revision 8db129472ea88a9c5c4a6e94dff7b330723aed28 authored by Jameson Nash on 05 February 2024, 00:51:02 UTC, committed by GitHub on 05 February 2024, 00:51:02 UTC

add atomic operators for globals, memory, and setonce (#52868)

This implements `AtomicMemory`, atomic operations for globals, and the
class of atomic function for setting a field or global or memory exactly
once (setting undef => value). It is quite similar to an
`@atomicreplace`, but where there was not a previous value. This is not
needed for pointers, since it is simply calling C_NULL => pointer in
that case, since there is no "undef" value that throws after load.

plenty of future work still, for a later PR:
- syntax lowering for `@atomic global x = y` and `@atomic closedover =
y`
   - adding `Core.AtomicBox` for closure capture
   - generic functions for `atomicsetindex` & friends
   - macro for `@atomic x = y` and `@atomic x[] = y`, etc
   - design for `@atomiconce f()`

1 parent 3d8b107

Files
Changes

Permalinks

Tip revision: 8db129472ea88a9c5c4a6e94dff7b330723aed28 authored by Jameson Nash on 05 February 2024, 00:51:02 UTC
add atomic operators for globals, memory, and setonce (#52868)

Tip revision: 8db1294

File	Mode	Size
.devcontainer
.github
base
cli
contrib
deps
doc
etc
src
stdlib
test
.buildkite-external-version	-rw-r--r--	5 bytes
.clang-format	-rw-r--r--	3.3 KB
.clangd	-rw-r--r--	114 bytes
.codecov.yml	-rw-r--r--	52 bytes
.git-blame-ignore-revs	-rw-r--r--	371 bytes
.gitattributes	-rw-r--r--	65 bytes
.gitignore	-rw-r--r--	571 bytes
.mailmap	-rw-r--r--	12.7 KB
CITATION.bib	-rw-r--r--	513 bytes
CITATION.cff	-rw-r--r--	940 bytes
CONTRIBUTING.md	-rw-r--r--	23.4 KB
HISTORY.md	-rw-r--r--	372.8 KB
LICENSE.md	-rw-r--r--	1.3 KB
Make.inc	-rw-r--r--	55.9 KB
Makefile	-rw-r--r--	30.2 KB
NEWS.md	-rw-r--r--	11.4 KB
README.md	-rw-r--r--	7.4 KB
THIRDPARTY.md	-rw-r--r--	3.9 KB
VERSION	-rw-r--r--	11 bytes
julia.spdx.json	-rw-r--r--	37.8 KB
pkgimage.mk	-rw-r--r--	5.9 KB
sysimage.mk	-rw-r--r--	4.2 KB
typos.toml	-rw-r--r--	78 bytes

Showing with 0 additions and 0 deletions (0 / 0 diffs computed)

Computing file changes ...

https://github.com/JuliaLang/julia

add atomic operators for globals, memory, and setonce (#52868)

README.md