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queues.rb
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queues.rb
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# frozen_string_literal: true
module Sidekiq
module LimitFetch
module Queues
extend self
THREAD_KEY = :acquired_queues
# rubocop:disable Metrics/AbcSize
# rubocop:disable Metrics/CyclomaticComplexity
# rubocop:disable Metrics/MethodLength
# rubocop:disable Metrics/PerceivedComplexity
def start(capsule_or_options)
config = Sidekiq::LimitFetch.post_7? ? capsule_or_options.config : capsule_or_options
@queues = config[:queues].map do |queue|
if queue.is_a? Array
queue.first
else
queue
end
end.uniq
@startup_queues = @queues.dup
if config[:dynamic].is_a? Hash
@dynamic = true
@dynamic_exclude = config[:dynamic][:exclude] || []
else
@dynamic = config[:dynamic]
@dynamic_exclude = []
end
@limits = config[:limits] || {}
@process_limits = config[:process_limits] || {}
@blocks = config[:blocking] || []
config[:strict] ? strict_order! : weighted_order!
apply_process_limit_to_queues
apply_limit_to_queues
apply_blocks_to_queues
end
# rubocop:enable Metrics/AbcSize
# rubocop:enable Metrics/CyclomaticComplexity
# rubocop:enable Metrics/MethodLength
# rubocop:enable Metrics/PerceivedComplexity
def acquire
queues = saved
queues ||= Sidekiq::LimitFetch.redis_retryable do
selector.acquire(ordered_queues, namespace)
end
save queues
queues.map { |it| "queue:#{it}" }
end
def release_except(full_name)
queues = restore
queues.delete full_name[/queue:(.*)/, 1] if full_name
Sidekiq::LimitFetch.redis_retryable do
selector.release queues, namespace
end
end
def dynamic?
@dynamic
end
def startup_queue?(queue)
@startup_queues.include?(queue)
end
def dynamic_exclude
@dynamic_exclude
end
def add(queues)
return unless queues
queues.each do |queue|
next if @queues.include? queue
if startup_queue?(queue)
apply_process_limit_to_queue(queue)
apply_limit_to_queue(queue)
end
@queues.push queue
end
end
def remove(queues)
return unless queues
queues.each do |queue|
next unless @queues.include? queue
clear_limits_for_queue(queue)
@queues.delete queue
Sidekiq::Queue.delete_instance(queue)
end
end
def handle(queues)
add(queues - @queues)
remove(@queues - queues)
end
# rubocop:disable Lint/NestedMethodDefinition
def strict_order!
@queues.uniq!
def ordered_queues
@queues
end
end
def weighted_order!
def ordered_queues
@queues.shuffle.uniq
end
end
# rubocop:enable Lint/NestedMethodDefinition
def namespace
@namespace ||= Sidekiq.redis do |it|
if it.respond_to?(:namespace) && it.namespace
"#{it.namespace}:"
else
''
end
end
end
private
def apply_process_limit_to_queues
@queues.uniq.each do |queue_name|
apply_process_limit_to_queue(queue_name)
end
end
def apply_process_limit_to_queue(queue_name)
queue = Sidekiq::Queue[queue_name]
queue.process_limit = @process_limits[queue_name.to_s] || @process_limits[queue_name.to_sym]
end
def apply_limit_to_queues
@queues.uniq.each do |queue_name|
apply_limit_to_queue(queue_name)
end
end
def apply_limit_to_queue(queue_name)
queue = Sidekiq::Queue[queue_name]
return if queue.limit_changed?
queue.limit = @limits[queue_name.to_s] || @limits[queue_name.to_sym]
end
def apply_blocks_to_queues
@queues.uniq.each do |queue_name|
Sidekiq::Queue[queue_name].unblock
end
@blocks.to_a.each do |it|
if it.is_a? Array
it.each { |name| Sidekiq::Queue[name].block_except it }
else
Sidekiq::Queue[it].block
end
end
end
def clear_limits_for_queue(queue_name)
queue = Sidekiq::Queue[queue_name]
queue.clear_limits
end
def selector
Sidekiq::LimitFetch::Global::Selector
end
def saved
Thread.current[THREAD_KEY]
end
def save(queues)
Thread.current[THREAD_KEY] = queues
end
def restore
saved || []
ensure
save nil
end
end
end
end