#!/usr/local/bin/ruby
arr = Array.new
for j in 0..100000
arr[j] = rand(1000) # 1000 is max int
end
# Threads A and B both loop continually, printing one message,
# sleeping for half a second, and then passing control to
# another thread
# threads start automactically
threadA = Thread.new do
i = 0
loop do
puts "Thread A: #{i += 1}"
puts "Thread A: #{arr[i]}"
i += 1
sleep 1.5
Thread.pass
if i >= 10
Thread.stop
end
end
end
threadB = Thread.new do
i = 10000
loop do
puts "Thread B: #{i += 1}"
puts "Thread B: #{arr[i]}"
sleep 0.5
Thread.pass
if i >= 10010
Thread.stop
end
end
end
# Thread C also loops continually, printing a message. However,
# it stops after each message, waiting to be wokenup again by
# another thread (in this case, the main program)
threadC = Thread.new do
i = 0
loop do
puts "Thread C: #{i += 1}"
Thread.stop
end
end
# The main program loops continually, doing nothing other than
# sleeping for half a second and then letting Thread C have a go
# main routine
loop do
sleep 0.5
threadC.run
end
