Replace ActiveSupport::Concurrency::Latch
with Concurrent::CountDownLatch
from concurrent-ruby.
#20866
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This update was suggested by @tenderlove in a discussion on one of his PRs to concurrent-ruby.
The concurrent-ruby gem is a toolset containing many concurrency utilities. Many of these utilities include runtime-specific optimizations when possible. Rather than clutter the Rails codebase with concurrency utilities separate from the core task, such tools can be superseded by similar tools in the more specialized gem. This commit replaces
ActiveSupport::Concurrency::Latch
withConcurrent::CountDownLatch
, which is functionally equivalent.