Provides a parallel each that lets you enumerate using N threads. Use environment variable N to customize. Defaults to 2. Enumerable, so all the goodies come along (tho not all are wrapped yet to return another ParallelEach instance).
Create a new ParallelEach instance over
list.
# File minitest/parallel_each.rb, line 25
def initialize list
@queue = Queue.new # *sigh*... the Queue api sucks sooo much...
list.each { |i| @queue << i }
N.times { @queue << nil }
end
# File minitest/parallel_each.rb, line 58
def count
[@queue.size - N, 0].max
end
Starts N threads that yield each element to your block. Joins the threads at the end.
# File minitest/parallel_each.rb, line 46
def each
threads = N.times.map {
Thread.new do
Thread.current.abort_on_exception = true
while job = @queue.pop
yield job
end
end
}
threads.map(&:join)
end
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