60 lines
1.3 KiB
Ruby
60 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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module ActionCable
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module SubscriptionAdapter
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class SubscriberMap
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def initialize
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@subscribers = Hash.new { |h, k| h[k] = [] }
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@sync = Mutex.new
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end
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def add_subscriber(channel, subscriber, on_success)
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@sync.synchronize do
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new_channel = !@subscribers.key?(channel)
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@subscribers[channel] << subscriber
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if new_channel
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add_channel channel, on_success
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elsif on_success
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on_success.call
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end
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end
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end
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def remove_subscriber(channel, subscriber)
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@sync.synchronize do
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@subscribers[channel].delete(subscriber)
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if @subscribers[channel].empty?
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@subscribers.delete channel
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remove_channel channel
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end
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end
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end
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def broadcast(channel, message)
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list = @sync.synchronize do
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return if !@subscribers.key?(channel)
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@subscribers[channel].dup
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end
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list.each do |subscriber|
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invoke_callback(subscriber, message)
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end
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end
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def add_channel(channel, on_success)
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on_success.call if on_success
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end
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def remove_channel(channel)
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end
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def invoke_callback(callback, message)
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callback.call message
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end
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end
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end
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end
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