Thread Value Coordination Report

Run a bounded worker thread, collect its return value, and report a size label for the settled result.

Thread Value Coordination Report

thread_value_coordination_report.rb

seed = 
worker = Thread.new do
  total = 0
  seed.times do |step|
    total += step + 1
  end
  total
end

result = worker.value
finished = worker.status == false

status = if result <= 3
  "small"
elsif result <= 12
  "mid"
else
  "large"
end

puts "seed=#{seed}"
puts "finished=#{finished}"
puts "result=#{result}"
puts "status=#{status}"

seed = 
worker = Thread.new do
  total = 0
  seed.times do |step|
    total += step + 1
  end
  total
end

result = worker.value
finished = worker.status == false

status = if result <= 3
  "small"
elsif result <= 12
  "mid"
else
  "large"
end

puts "seed=#{seed}"
puts "finished=#{finished}"
puts "result=#{result}"
puts "status=#{status}"

seed = 
worker = Thread.new do
  total = 0
  seed.times do |step|
    total += step + 1
  end
  total
end

result = worker.value
finished = worker.status == false

status = if result <= 3
  "small"
elsif result <= 12
  "mid"
else
  "large"
end

puts "seed=#{seed}"
puts "finished=#{finished}"
puts "result=#{result}"
puts "status=#{status}"

thread value `Thread#value` joins a worker and returns the value of its block, so reading the settled result reports the finished state without leaving a background thread running.