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# frozen_string_literal: true
module Sass
# The {ForkTracker} module.
#
# It tracks objects that need to be closed after `Process.fork`.
module ForkTracker
HASH = {}.compare_by_identity
MUTEX = Mutex.new
private_constant :HASH, :MUTEX
module_function
def add(obj)
MUTEX.synchronize do
HASH[obj] = true
end
end
def delete(obj)
MUTEX.synchronize do
HASH.delete(obj)
end
end
def each(...)
MUTEX.synchronize do
HASH.keys
end.each(...)
end
# The {CoreExt} module.
#
# It closes objects after `Process.fork`.
module CoreExt
def _fork
pid = super
ForkTracker.each(&:close) if pid.zero?
pid
end
end
private_constant :CoreExt
Process.singleton_class.prepend(CoreExt) if Process.respond_to?(:_fork)
end
private_constant :ForkTracker
end
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