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Contents
# frozen_string_literal: true
module Listen
module Adapter
# Polling Adapter that works cross-platform and
# has no dependencies. This is the adapter that
# uses the most CPU processing power and has higher
# file IO than the other implementations.
#
class Polling < Base
OS_REGEXP = //.freeze # match every OS
DEFAULTS = { latency: 1.0, wait_for_delay: 0.05 }.freeze
private
def _configure(_, &callback)
@polling_callbacks ||= []
@polling_callbacks << callback
end
def _run
loop do
start = MonotonicTime.now
@polling_callbacks.each do |callback|
callback.call(nil)
if (nap_time = options.latency - (MonotonicTime.now - start)) > 0
# TODO: warn if nap_time is negative (polling too slow)
sleep(nap_time)
end
end
end
end
def _process_event(dir, _)
_queue_change(:dir, dir, '.', recursive: true)
end
end
end
end
Version data entries
91 entries across 91 versions & 6 rubygems