Created
May 6, 2015 06:39
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MWE for conflict of listen and parallel gems
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#!/usr/bin/ruby | |
require 'rubygems' | |
gem "parallel" | |
require 'parallel' | |
gem "listen" | |
require 'listen' | |
listener = Listen.to('.') do |modified, added, removed| | |
$changetime = Time.now | |
end | |
$changetime = Time.now | |
listener.start | |
begin | |
Parallel.map([1,2,3,4], :finish => lambda { |a,b,c| puts c }) { |job| | |
begin | |
# Do something time-consuming | |
sleep(2) | |
job | |
rescue => e | |
puts "\tAn error occurred: #{e.to_s}" | |
# Should we break? Let's see what kinds of errors we get... | |
end | |
} | |
# Do we have to care about Parallel::DeadWorker? | |
# Wait for files to change | |
files = Thread.new do | |
while ( $changetime <= start_time || Time.now - $changetime < 2 ) | |
sleep(0.5) | |
end | |
while ( Thread.current[:raisetarget] == nil ) do end | |
Thread.current[:raisetarget].raise(Interrupt.new("Files have changed")) | |
end | |
files[:raisetarget] = Thread.current | |
end while ( true ) |
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