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net2-reactor.rb
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net2-reactor.rb
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require "net2/reactor/version"
require "net2/reactor/timer"
module Net2
class Reactor
def initialize(queue)
@ios = {:read => [], :write => []}
@channels = {:read => {}, :write => {}}
@timers = []
@running = true
@queue = queue
end
def start
while @running
read_ios, write_ios, err_ios = IO.select(@ios[:read], @ios[:write], nil, 0.1)
if read_ios
read_ios.each do |io|
@queue.push @channels[:read][io], :read unless io.closed?
end
end
if write_ios
write_ios.each do |io|
@queue.push @channels[:write][io], :write unless io.closed?
end
end
if err_ios
err_ios.each do |io|
@queue.push @channels[io], :err unless io.closed?
end
end
@ios.each do |type, ios|
ios.each do |io|
if io.closed?
@queue.push @channels[type][io], :close
stop_watching io, type
end
end
end
@timers.reject! do |timer|
if timer.elapsed?
timer.callback
true
end
end
end
end
def watch(channel, *types)
io = channel.io
channel.reactor = self
types = [:read] if types.empty?
types.each do |type|
@ios[type] << io
@channels[type][io] = channel
end
end
def add_timer(ms, obj=Proc.new)
@timers << Timer.new(ms, obj)
end
def stop_watching(io, type)
@ios[type].delete(io)
end
def stop
@running = false
end
end
end