69 lines
1.4 KiB
Ruby
69 lines
1.4 KiB
Ruby
# frozen_string_literal: true
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module Sass
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class Compiler
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# The {Channel} class.
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#
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# It manages the lifecycle of {Dispatcher}.
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class Channel
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def initialize(dispatcher_class)
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@dispatcher_class = dispatcher_class
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@dispatcher = @dispatcher_class.new
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@mutex = Mutex.new
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end
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def close
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@mutex.synchronize do
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unless @dispatcher.nil?
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@dispatcher.close
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@dispatcher = nil
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end
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end
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end
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def closed?
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@mutex.synchronize do
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@dispatcher.nil?
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end
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end
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def stream(host)
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@mutex.synchronize do
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raise IOError, 'closed compiler' if @dispatcher.nil?
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Stream.new(@dispatcher, host)
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rescue Errno::EBUSY
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@dispatcher = @dispatcher_class.new
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Stream.new(@dispatcher, host)
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end
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end
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# The {Stream} between {Dispatcher} and {Host}.
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class Stream
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attr_reader :id
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def initialize(dispatcher, host)
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@dispatcher = dispatcher
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@id = @dispatcher.subscribe(host)
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end
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def close
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@dispatcher.unsubscribe(@id)
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end
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def error(...)
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@dispatcher.error(...)
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end
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def send_proto(...)
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@dispatcher.send_proto(...)
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end
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end
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private_constant :Stream
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end
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private_constant :Channel
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end
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end
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