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